ContrastAPI

SEO Audit

seo_audit

Read-onlyIdempotent

One-shot SEO audit of a domain's homepage with a 0-100 composite score + a missing_signals list of concrete fixes. Use BEFORE pitching SEO work to a prospect, when triaging a lead's marketing maturity, or as a structured pre-flight before deeper auditing tools (Lighthouse / SEMrush). 10 audit rules each worth 10 pts: title present, title length 30-60 chars (Google SERP truncation window), meta description present, meta description length 50-160, exactly one H1, canonical link, >=3 OG tags, JSON-LD present, image alt-text coverage (proportional), HTTPS. Strictly homepage-only — we do NOT crawl the site. Ethical floor: target's robots.txt is honoured — Disallow: / for ContrastAPI OR * returns 403 error.code = robots_txt_disallow and we DO NOT fetch. Cache-Control: no-store/private skips our cache write (cache_respected=false in the response). Per-target eTLD+1 throttle (60 req/min) prevents weaponising via subdomain rotation. All target-derived strings/lists are _untrusted. Free: 30/hr, Pro: 500/hr. Returns {domain, fetched_url, status_code, title_untrusted, meta_description_untrusted, canonical_url, h1_untrusted, h1_count, h2_count, h3_count, images_total, images_missing_alt, internal_link_count, external_link_count, og_tags, json_ld_present, score, missing_signals, cache_respected, summary}. Returns 502 on DNS/TCP/TLS failure; 403 robots_txt_disallow when the target opted out.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`domain`	Yes	Registrable domain to audit SEO for (e.g. 'example.com', 'shopify.com'). No scheme, no path, no port. Strictly homepage-only — the bot fetches https://<domain>/ with HTTP fallback and audits that single page (we do NOT crawl).

Output Schema

TableJSON Schema

Name	Required	Description	Default
`result`	Yes

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

Changed5 schema fields changedJun 2, 2026
- changedOutput schema / properties / result / properties / canonical_url / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / result / properties / meta_description_untrusted / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / result / properties / next_calls / type
```
Previous value: -"array"New value: +[
+  "array",
+  "null"
+]
```
- changedOutput schema / properties / result / properties / title_untrusted / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / result / properties / verdict / type
```
Previous value: -"object"New value: +[
+  "object",
+  "null"
+]
```
Changed4 schema fields changedMay 25, 2026
- changedOutput schema / properties / result / properties / canonical_url / type
```
Previous value: -"object"New value: +"string"
```
- changedOutput schema / properties / result / properties / meta_description_untrusted / type
```
Previous value: -"object"New value: +"string"
```
- changedOutput schema / properties / result / properties / next_calls / type
```
Previous value: -"object"New value: +"array"
```
- changedOutput schema / properties / result / properties / title_untrusted / type
```
Previous value: -"object"New value: +"string"
```

Changed1 schema field changedMay 22, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "result": {
+      "properties": {
+        "cache_respected": {
+          "type": "boolean"
+        },
+        "canonical_url": {
+          "type": "object"
+        },
+        "domain": {
+          "type": "string"
+        },
+        "external_link_count": {
+          "type": "integer"
+        },
+        "fetched_url": {
+          "type": "string"
+        },
+        "h1_count": {
+          "type": "integer"
+        },
+        "h1_untrusted": {
+          "type": "array"
+        },
+        "h2_count": {
+          "type": "integer"
+        },
+        "h3_count": {
+          "type": "integer"
+        },
+        "images_missing_alt": {
+          "type": "integer"
+        },
+        "images_total": {
+          "type": "integer"
+        },
+        "internal_link_count": {
+          "type": "integer"
+        },
+        "json_ld_present": {
+          "type": "boolean"
+        },
+        "meta_description_untrusted": {
+          "type": "object"
+        },
+        "missing_signals": {
+          "type": "array"
+        },
+        "next_calls": {
+          "type": "object"
+        },
+        "og_tags": {
+          "type": "object"
+        },
+        "score": {
+          "type": "integer"
+        },
+        "status_code": {
+          "type": "integer"
+        },
+        "summary": {
+          "type": "string"
+        },
+        "title_untrusted": {
+          "type": "object"
+        },
+        "verdict": {
+          "type": "object"
+        }
+      },
+      "required": [
+        "domain",
+        "fetched_url",
+        "status_code",
+        "score"
+      ],
+      "type": "object"
+    }
+  },
+  "required": [
+    "result"
+  ],
+  "type": "object"
+}

Changed1 schema field changedMay 22, 2026

changedOutput schema / (root)

Previous value: -{
-  "$defs": {
-    "ErrorDetail": {
-      "properties": {
-        "code": {
-          "enum": [
-            "invalid_argument",
-            "not_found",
-            "rate_limit_exceeded",
-            "auth_required",
-            "tier_limit",
-            "upstream_timeout",
-            "upstream_error",
-            "internal_error"
-          ],
-          "type": "string"
-        },
-        "docs_url": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
-        "message": {
-          "maxLength": 500,
-          "type": "string"
-        },
-        "retry_after_seconds": {
-          "anyOf": [
-            {
-              "type": "integer"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
-        "upgrade_url": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        }
-      },
-      "required": [
-        "code",
-        "message"
-      ],
-      "type": "object"
-    },
-    "ErrorResponse": {
-      "properties": {
-        "error": {
-          "$ref": "#/$defs/ErrorDetail"
-        }
-      },
-      "required": [
-        "error"
-      ],
-      "type": "object"
-    },
-    "PivotHint": {
-      "additionalProperties": true,
-      "properties": {
-        "input": {
-          "type": "string"
-        },
-        "params": {
-          "anyOf": [
-            {
-              "additionalProperties": {
-                "type": "string"
-              },
-              "type": "object"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
-        "reason": {
-          "type": "string"
-        },
-        "tool": {
-          "enum": [
-            "cve_lookup",
-            "cve_search",
-            "cve_leading",
-            "bulk_cve_lookup",
-            "calculate_risk_score",
-            "get_cvss_details",
-            "exploit_lookup",
-            "kev_detail",
-            "cwe_lookup",
-            "subdomain_enum",
-            "ssl_check",
-            "tech_fingerprint",
-            "asn_lookup",
-            "ip_lookup",
-            "ioc_lookup",
-            "bulk_ioc_lookup",
-            "hash_lookup",
-            "threat_intel",
-            "threat_report",
-            "audit_domain",
-            "domain_report",
-            "dns_lookup",
-            "whois_lookup",
-            "wayback_lookup",
-            "scan_headers",
-            "check_headers",
-            "check_secrets",
-            "check_injection",
-            "check_dependencies",
-            "email_mx",
-            "email_security_posture",
-            "email_disposable",
-            "email_verify",
-            "robots_txt",
-            "redirect_chain",
-            "brand_assets",
-            "seo_audit",
-            "phone_lookup",
-            "username_lookup",
-            "password_check",
-            "phishing_check",
-            "atlas_technique_lookup",
-            "atlas_technique_search",
-            "bulk_atlas_technique_lookup",
-            "atlas_case_study_lookup",
-            "atlas_case_study_search",
-            "d3fend_defense_lookup",
-            "d3fend_defense_search",
-            "d3fend_defense_for_attack",
-            "d3fend_attack_coverage",
-            "sigma_rule_lookup",
-            "bulk_sigma_rule_lookup",
-            "tech_stack_cve_audit"
-          ],
-          "type": "string"
-        }
-      },
-      "required": [
-        "tool",
-        "input",
-        "reason"
-      ],
-      "type": "object"
-    },
-    "SeoAuditResponse": {
-      "properties": {
-        "cache_respected": {
-          "type": "boolean"
-        },
-        "canonical_url": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
-        "domain": {
-          "type": "string"
-        },
-        "external_link_count": {
-          "type": "integer"
-        },
-        "fetched_url": {
-          "type": "string"
-        },
-        "h1_count": {
-          "type": "integer"
-        },
-        "h1_untrusted": {
-          "items": {
-            "type": "string"
-          },
-          "type": "array"
-        },
-        "h2_count": {
-          "type": "integer"
-        },
-        "h3_count": {
-          "type": "integer"
-        },
-        "images_missing_alt": {
-          "type": "integer"
-        },
-        "images_total": {
-          "type": "integer"
-        },
-        "internal_link_count": {
-          "type": "integer"
-        },
-        "json_ld_present": {
-          "type": "boolean"
-        },
-        "meta_description_untrusted": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
-        "missing_signals": {
-          "items": {
-            "type": "string"
-          },
-          "type": "array"
-        },
-        "next_calls": {
-          "anyOf": [
-            {
-              "items": {
-                "$ref": "#/$defs/PivotHint"
-              },
-              "type": "array"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
-        "og_tags": {
-          "additionalProperties": {
-            "type": "string"
-          },
-          "type": "object"
-        },
-        "score": {
-          "type": "integer"
-        },
-        "status_code": {
-          "type": "integer"
-        },
-        "summary": {
-          "type": "string"
-        },
-        "title_untrusted": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
-        "verdict": {
-          "anyOf": [
-            {
-              "$ref": "#/$defs/Verdict"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        }
-      },
-      "required": [
-        "domain",
-        "fetched_url",
-        "status_code",
-        "score"
-      ],
-      "type": "object"
-    },
-    "Verdict": {
-      "properties": {
-        "completeness": {
-          "enum": [
-            "complete",
-            "partial",
-            "minimal"
-          ],
-          "type": "string"
-        },
-        "data_age_seconds": {
-          "anyOf": [
-            {
-              "type": "integer"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        },
-        "deterministic": {
-          "type": "boolean"
-        },
-        "falsifiable_fields": {
-          "items": {
-            "type": "string"
-          },
-          "type": "array"
-        },
-        "sources_queried": {
-          "items": {
-            "type": "string"
-          },
-          "type": "array"
-        },
-        "sources_unavailable": {
-          "items": {
-            "type": "string"
-          },
-          "type": "array"
-        }
-      },
-      "required": [
-        "deterministic"
-      ],
-      "type": "object"
-    }
-  },
-  "properties": {
-    "result": {
-      "anyOf": [
-        {
-          "$ref": "#/$defs/SeoAuditResponse"
-        },
-        {
-          "$ref": "#/$defs/ErrorResponse"
-        }
-      ]
-    }
-  },
-  "required": [
-    "result"
-  ],
-  "type": "object"
-}New value: +null

Changed105 schema fields changedMay 17, 2026

removedOutput schema / $defs / ErrorDetail / description

Removed value: -"Structured failure body. Codes mirror app/exceptions.AppException\nsubclasses; agent retry / upgrade decisions key off `code`, not `message`."

removedOutput schema / $defs / ErrorDetail / properties / code / description

Removed value: -"Stable machine-readable failure category. Agents key retry/upgrade decisions off this."

removedOutput schema / $defs / ErrorDetail / properties / code / title
```
Removed value: -"Code"
```
removedOutput schema / $defs / ErrorDetail / properties / docs_url / default
```
Removed value: -null
```

removedOutput schema / $defs / ErrorDetail / properties / docs_url / description

Removed value: -"Documentation pointer (e.g. tool input contract) when code='invalid_argument'."

removedOutput schema / $defs / ErrorDetail / properties / docs_url / title
```
Removed value: -"Docs Url"
```

removedOutput schema / $defs / ErrorDetail / properties / message / description

Removed value: -"Human-readable detail. Free text — never parse. Capped at 500 chars to prevent oversized upstream errors from bloating responses."

removedOutput schema / $defs / ErrorDetail / properties / message / title
```
Removed value: -"Message"
```
removedOutput schema / $defs / ErrorDetail / properties / retry_after_seconds / default
```
Removed value: -null
```

removedOutput schema / $defs / ErrorDetail / properties / retry_after_seconds / description

Removed value: -"When code='rate_limit_exceeded', the minimum seconds to wait before retrying."

removedOutput schema / $defs / ErrorDetail / properties / retry_after_seconds / title
```
Removed value: -"Retry After Seconds"
```
removedOutput schema / $defs / ErrorDetail / properties / upgrade_url / default
```
Removed value: -null
```

removedOutput schema / $defs / ErrorDetail / properties / upgrade_url / description

Removed value: -"Pricing/upgrade URL when code='tier_limit' or 'rate_limit_exceeded' on the Free tier."

removedOutput schema / $defs / ErrorDetail / properties / upgrade_url / title
```
Removed value: -"Upgrade Url"
```
removedOutput schema / $defs / ErrorDetail / title
```
Removed value: -"ErrorDetail"
```

removedOutput schema / $defs / ErrorResponse / description

Removed value: -"MCP error envelope. Tool return type is always\n`SpecificResponse | ErrorResponse` — Union flag tells the agent which arm\narrived without parsing the inner body."

removedOutput schema / $defs / ErrorResponse / title
```
Removed value: -"ErrorResponse"
```

removedOutput schema / $defs / PivotHint / description

Removed value: -"A suggested follow-up MCP tool call. Surfaced inside response.next_calls so\nLLM agents can chain related lookups without manual prompting. Each hint names\nthe tool, the input value to pass, and a short reason explaining why this\npivot adds value in the current context."

removedOutput schema / $defs / PivotHint / properties / input / description

Removed value: -"Suggested input value to pass to the tool — typically a CVE ID, CWE ID, domain, or IP. Pre-populated from the current response so the agent can call the next tool without re-deriving the argument."

removedOutput schema / $defs / PivotHint / properties / input / title
```
Removed value: -"Input"
```
removedOutput schema / $defs / PivotHint / properties / params / default
```
Removed value: -null
```

removedOutput schema / $defs / PivotHint / properties / params / description

Removed value: -"Optional extra kwargs to pass alongside `input`. Used by pivot generators when the next call benefits from a secondary parameter, e.g. {'exclude_id': 'AML.T0051'} to skip the originating technique from a sibling-tactic search. Omitted when no extra args are needed."

removedOutput schema / $defs / PivotHint / properties / params / title
```
Removed value: -"Params"
```

removedOutput schema / $defs / PivotHint / properties / reason / description

Removed value: -"Short rationale (one sentence) for why this follow-up call adds value, e.g. 'Federal patch deadline + ransomware association', 'Public exploits / PoC availability'."

removedOutput schema / $defs / PivotHint / properties / reason / title
```
Removed value: -"Reason"
```

removedOutput schema / $defs / PivotHint / properties / tool / description

Removed value: -"Canonical MCP tool name to call next. Constrained to known operation_ids in tools/list — adding a new tool here requires expanding the Literal."

removedOutput schema / $defs / PivotHint / properties / tool / title
```
Removed value: -"Tool"
```
removedOutput schema / $defs / PivotHint / title
```
Removed value: -"PivotHint"
```

removedOutput schema / $defs / SeoAuditResponse / description

Removed value: -"One-page SEO audit of a domain's homepage with a 0-100 composite score.\n\nStrictly homepage-only (path `/`); we do NOT crawl the site. Same\nethical floor as `brand_assets`: target's robots.txt is honoured\n(Disallow `/` for our UA → 403, no fetch). All target-derived\nstring/list fields are `_untrusted` (DO NOT execute or shell-out —\nthe page author controls these contents).\n\nScore (0-100) is the sum of 10 audit rules, each worth 0-10 points.\n`missing_signals` lists the rule-IDs that did NOT fire so agents\ncan surface concrete fixes (\"title_missing\", \"h1_multiple\", etc.)."

removedOutput schema / $defs / SeoAuditResponse / properties / cache_respected / default
```
Removed value: -true
```

removedOutput schema / $defs / SeoAuditResponse / properties / cache_respected / description

Removed value: -"True if we wrote the result to our cache. False when the target sent `Cache-Control: no-store` or `private` and we honoured it."

removedOutput schema / $defs / SeoAuditResponse / properties / cache_respected / title
```
Removed value: -"Cache Respected"
```
removedOutput schema / $defs / SeoAuditResponse / properties / canonical_url / default
```
Removed value: -null
```
removedOutput schema / $defs / SeoAuditResponse / properties / canonical_url / description
```
Removed value: -"`<link rel='canonical'>` href, resolved to an absolute URL."
```
removedOutput schema / $defs / SeoAuditResponse / properties / canonical_url / title
```
Removed value: -"Canonical Url"
```
removedOutput schema / $defs / SeoAuditResponse / properties / domain / description
```
Removed value: -"Queried domain (echoed)."
```
removedOutput schema / $defs / SeoAuditResponse / properties / domain / title
```
Removed value: -"Domain"
```
removedOutput schema / $defs / SeoAuditResponse / properties / external_link_count / default
```
Removed value: -0
```

removedOutput schema / $defs / SeoAuditResponse / properties / external_link_count / description

Removed value: -"`<a href>` count to a different registrable domain. Excludes mailto:, tel:, javascript:, in-page anchors."

removedOutput schema / $defs / SeoAuditResponse / properties / external_link_count / title
```
Removed value: -"External Link Count"
```
removedOutput schema / $defs / SeoAuditResponse / properties / fetched_url / description
```
Removed value: -"Final URL we fetched (post-redirects)."
```
removedOutput schema / $defs / SeoAuditResponse / properties / fetched_url / title
```
Removed value: -"Fetched Url"
```
removedOutput schema / $defs / SeoAuditResponse / properties / h1_count / default
```
Removed value: -0
```
removedOutput schema / $defs / SeoAuditResponse / properties / h1_count / description
```
Removed value: -"Total number of `<h1>` tags found (NOT capped — for scoring)."
```
removedOutput schema / $defs / SeoAuditResponse / properties / h1_count / title
```
Removed value: -"H1 Count"
```

removedOutput schema / $defs / SeoAuditResponse / properties / h1_untrusted / description

Removed value: -"Text of each `<h1>` (capped at 20 entries, 300 chars each). `_untrusted`."

removedOutput schema / $defs / SeoAuditResponse / properties / h1_untrusted / title
```
Removed value: -"H1 Untrusted"
```
removedOutput schema / $defs / SeoAuditResponse / properties / h2_count / default
```
Removed value: -0
```
removedOutput schema / $defs / SeoAuditResponse / properties / h2_count / description
```
Removed value: -"`<h2>` tag count, capped at 200."
```
removedOutput schema / $defs / SeoAuditResponse / properties / h2_count / title
```
Removed value: -"H2 Count"
```
removedOutput schema / $defs / SeoAuditResponse / properties / h3_count / default
```
Removed value: -0
```
removedOutput schema / $defs / SeoAuditResponse / properties / h3_count / description
```
Removed value: -"`<h3>` tag count, capped at 200."
```
removedOutput schema / $defs / SeoAuditResponse / properties / h3_count / title
```
Removed value: -"H3 Count"
```
removedOutput schema / $defs / SeoAuditResponse / properties / images_missing_alt / default
```
Removed value: -0
```

removedOutput schema / $defs / SeoAuditResponse / properties / images_missing_alt / description

Removed value: -"Number of `<img>` tags with no `alt` attribute OR an empty/whitespace `alt`. Counts toward the score's accessibility rule."

removedOutput schema / $defs / SeoAuditResponse / properties / images_missing_alt / title
```
Removed value: -"Images Missing Alt"
```
removedOutput schema / $defs / SeoAuditResponse / properties / images_total / default
```
Removed value: -0
```
removedOutput schema / $defs / SeoAuditResponse / properties / images_total / description
```
Removed value: -"Total `<img>` tags on the page (parser bound: 1000)."
```
removedOutput schema / $defs / SeoAuditResponse / properties / images_total / title
```
Removed value: -"Images Total"
```
removedOutput schema / $defs / SeoAuditResponse / properties / internal_link_count / default
```
Removed value: -0
```

removedOutput schema / $defs / SeoAuditResponse / properties / internal_link_count / description

Removed value: -"`<a href>` count where the target host shares the registrable domain. Cheap eTLD-aware compare; not perfect on suffixes like .co.uk."

removedOutput schema / $defs / SeoAuditResponse / properties / internal_link_count / title
```
Removed value: -"Internal Link Count"
```
removedOutput schema / $defs / SeoAuditResponse / properties / json_ld_present / default
```
Removed value: -false
```

removedOutput schema / $defs / SeoAuditResponse / properties / json_ld_present / description

Removed value: -"True if at least one `<script type='application/ld+json'>` block exists (parser does NOT validate the JSON, only counts tag presence — score considers tag presence sufficient for structured-data signal)."

removedOutput schema / $defs / SeoAuditResponse / properties / json_ld_present / title
```
Removed value: -"Json Ld Present"
```
removedOutput schema / $defs / SeoAuditResponse / properties / meta_description_untrusted / default
```
Removed value: -null
```
removedOutput schema / $defs / SeoAuditResponse / properties / meta_description_untrusted / description
```
Removed value: -"`<meta name='description'>` content, capped at 500 chars. `_untrusted`."
```
removedOutput schema / $defs / SeoAuditResponse / properties / meta_description_untrusted / title
```
Removed value: -"Meta Description Untrusted"
```

removedOutput schema / $defs / SeoAuditResponse / properties / missing_signals / description

Removed value: -"Rule-IDs that did NOT contribute their points. Subset of: title_missing, title_length_off, meta_description_missing, meta_description_length_off, h1_missing, h1_multiple, canonical_missing, og_tags_sparse, json_ld_missing, images_missing_alt, not_https."

removedOutput schema / $defs / SeoAuditResponse / properties / missing_signals / title
```
Removed value: -"Missing Signals"
```
removedOutput schema / $defs / SeoAuditResponse / properties / next_calls / default
```
Removed value: -null
```

removedOutput schema / $defs / SeoAuditResponse / properties / next_calls / description

Removed value: -"Suggested follow-up MCP tool calls. Ordered by relevance; agents should chain these without re-prompting the user."

removedOutput schema / $defs / SeoAuditResponse / properties / next_calls / title
```
Removed value: -"Next Calls"
```

removedOutput schema / $defs / SeoAuditResponse / properties / og_tags / description

Removed value: -"`<meta property='og:*'>` map, capped at 50 entries. Values capped at 500 chars each. All `_untrusted`."

removedOutput schema / $defs / SeoAuditResponse / properties / og_tags / title
```
Removed value: -"Og Tags"
```

removedOutput schema / $defs / SeoAuditResponse / properties / score / description

Removed value: -"Composite 0-100 SEO score: 10 rules x 10 points each (title present, title length, meta description present, meta description length, single H1, canonical, >=3 OG tags, JSON-LD present, image alt coverage proportional, HTTPS)."

removedOutput schema / $defs / SeoAuditResponse / properties / score / title
```
Removed value: -"Score"
```
removedOutput schema / $defs / SeoAuditResponse / properties / status_code / description
```
Removed value: -"HTTP status returned by the homepage fetch."
```
removedOutput schema / $defs / SeoAuditResponse / properties / status_code / title
```
Removed value: -"Status Code"
```
removedOutput schema / $defs / SeoAuditResponse / properties / summary / default
```
Removed value: -""
```
removedOutput schema / $defs / SeoAuditResponse / properties / summary / description
```
Removed value: -"One-line human-readable summary."
```
removedOutput schema / $defs / SeoAuditResponse / properties / summary / title
```
Removed value: -"Summary"
```
removedOutput schema / $defs / SeoAuditResponse / properties / title_untrusted / default
```
Removed value: -null
```

removedOutput schema / $defs / SeoAuditResponse / properties / title_untrusted / description

Removed value: -"`<title>` text, control-char stripped, capped at 300 chars. `_untrusted`."

removedOutput schema / $defs / SeoAuditResponse / properties / title_untrusted / title
```
Removed value: -"Title Untrusted"
```
removedOutput schema / $defs / SeoAuditResponse / properties / verdict / default
```
Removed value: -null
```

removedOutput schema / $defs / SeoAuditResponse / properties / verdict / description

Removed value: -"Falsifiability metadata: sources_queried, sources_unavailable, completeness, deterministic flag. Lets agents distinguish 'no data' from 'source failed' without re-running the call."

removedOutput schema / $defs / SeoAuditResponse / title
```
Removed value: -"SeoAuditResponse"
```
removedOutput schema / $defs / Verdict / properties / completeness / default
```
Removed value: -"complete"
```

removedOutput schema / $defs / Verdict / properties / completeness / description

Removed value: -"'complete' = every planned source returned data; 'partial' = at least one source in sources_unavailable failed or was skipped; 'minimal' = only the primary/required source returned, optional enrichment missing."

removedOutput schema / $defs / Verdict / properties / completeness / title
```
Removed value: -"Completeness"
```
removedOutput schema / $defs / Verdict / properties / data_age_seconds / default
```
Removed value: -null
```

removedOutput schema / $defs / Verdict / properties / data_age_seconds / description

Removed value: -"Seconds elapsed since the oldest cached source was fetched, or null when every source was queried live for this request. Use to judge freshness."

removedOutput schema / $defs / Verdict / properties / data_age_seconds / title
```
Removed value: -"Data Age Seconds"
```

removedOutput schema / $defs / Verdict / properties / deterministic / description

Removed value: -"True when the response is fully reproducible from the listed sources for the same input at the same moment (no randomness, no model inference). False for endpoints that include probabilistic scoring or LLM output."

removedOutput schema / $defs / Verdict / properties / deterministic / title
```
Removed value: -"Deterministic"
```

removedOutput schema / $defs / Verdict / properties / falsifiable_fields / description

Removed value: -"Top-level response fields whose values a caller can independently re-derive from the named upstream sources (e.g. 'dns', 'ssl', 'whois'). Fields not in this list are derived/computed and cannot be directly re-verified."

removedOutput schema / $defs / Verdict / properties / falsifiable_fields / title
```
Removed value: -"Falsifiable Fields"
```

removedOutput schema / $defs / Verdict / properties / sources_queried / description

Removed value: -"Canonical source identifiers successfully consulted for this response (e.g. 'ripe_stat', 'shodan_internetdb', 'firehol'). Agent-readable list, order not significant."

removedOutput schema / $defs / Verdict / properties / sources_queried / title
```
Removed value: -"Sources Queried"
```

removedOutput schema / $defs / Verdict / properties / sources_unavailable / description

Removed value: -"Sources that were expected but not returned — either intentionally skipped (lite mode, tier gating) or failed (quota, timeout, upstream down). Empty list means every planned source produced data."

removedOutput schema / $defs / Verdict / properties / sources_unavailable / title
```
Removed value: -"Sources Unavailable"
```
removedOutput schema / $defs / Verdict / title
```
Removed value: -"Verdict"
```
removedOutput schema / properties / result / title
```
Removed value: -"Result"
```
removedOutput schema / title
```
Removed value: -"seo_auditOutput"
```

Changed1 schema field changedMay 15, 2026

changedOutput schema / $defs / PivotHint / properties / tool / enum

Previous value: -[
-  "cve_lookup",
-  "cve_search",
-  "cve_leading",
-  "bulk_cve_lookup",
-  "calculate_risk_score",
-  "get_cvss_details",
-  "exploit_lookup",
-  "kev_detail",
-  "cwe_lookup",
-  "subdomain_enum",
-  "ssl_check",
-  "tech_fingerprint",
-  "asn_lookup",
-  "ip_lookup",
-  "ioc_lookup",
-  "bulk_ioc_lookup",
-  "hash_lookup",
-  "threat_intel",
-  "threat_report",
-  "audit_domain",
-  "domain_report",
-  "dns_lookup",
-  "whois_lookup",
-  "wayback_lookup",
-  "scan_headers",
-  "check_headers",
-  "check_secrets",
-  "check_injection",
-  "check_dependencies",
-  "email_mx",
-  "email_security_posture",
-  "email_disposable",
-  "email_verify",
-  "robots_txt",
-  "redirect_chain",
-  "brand_assets",
-  "seo_audit",
-  "phone_lookup",
-  "username_lookup",
-  "password_check",
-  "phishing_check",
-  "atlas_technique_lookup",
-  "atlas_technique_search",
-  "bulk_atlas_technique_lookup",
-  "atlas_case_study_lookup",
-  "atlas_case_study_search",
-  "d3fend_defense_lookup",
-  "d3fend_defense_search",
-  "d3fend_defense_for_attack",
-  "d3fend_attack_coverage",
-  "sigma_rule_lookup",
-  "bulk_sigma_rule_lookup"
-]New value: +[
+  "cve_lookup",
+  "cve_search",
+  "cve_leading",
+  "bulk_cve_lookup",
+  "calculate_risk_score",
+  "get_cvss_details",
+  "exploit_lookup",
+  "kev_detail",
+  "cwe_lookup",
+  "subdomain_enum",
+  "ssl_check",
+  "tech_fingerprint",
+  "asn_lookup",
+  "ip_lookup",
+  "ioc_lookup",
+  "bulk_ioc_lookup",
+  "hash_lookup",
+  "threat_intel",
+  "threat_report",
+  "audit_domain",
+  "domain_report",
+  "dns_lookup",
+  "whois_lookup",
+  "wayback_lookup",
+  "scan_headers",
+  "check_headers",
+  "check_secrets",
+  "check_injection",
+  "check_dependencies",
+  "email_mx",
+  "email_security_posture",
+  "email_disposable",
+  "email_verify",
+  "robots_txt",
+  "redirect_chain",
+  "brand_assets",
+  "seo_audit",
+  "phone_lookup",
+  "username_lookup",
+  "password_check",
+  "phishing_check",
+  "atlas_technique_lookup",
+  "atlas_technique_search",
+  "bulk_atlas_technique_lookup",
+  "atlas_case_study_lookup",
+  "atlas_case_study_search",
+  "d3fend_defense_lookup",
+  "d3fend_defense_search",
+  "d3fend_defense_for_attack",
+  "d3fend_attack_coverage",
+  "sigma_rule_lookup",
+  "bulk_sigma_rule_lookup",
+  "tech_stack_cve_audit"
+]

Changed1 schema field changedMay 12, 2026

changedOutput schema / $defs / PivotHint / properties / tool / enum

Previous value: -[
-  "cve_lookup",
-  "cve_search",
-  "cve_leading",
-  "bulk_cve_lookup",
-  "calculate_risk_score",
-  "get_cvss_details",
-  "exploit_lookup",
-  "kev_detail",
-  "cwe_lookup",
-  "subdomain_enum",
-  "ssl_check",
-  "tech_fingerprint",
-  "asn_lookup",
-  "ip_lookup",
-  "ioc_lookup",
-  "bulk_ioc_lookup",
-  "hash_lookup",
-  "threat_intel",
-  "threat_report",
-  "audit_domain",
-  "domain_report",
-  "dns_lookup",
-  "whois_lookup",
-  "wayback_lookup",
-  "scan_headers",
-  "check_headers",
-  "check_secrets",
-  "check_injection",
-  "check_dependencies",
-  "email_mx",
-  "email_security_posture",
-  "email_disposable",
-  "email_verify",
-  "robots_txt",
-  "redirect_chain",
-  "brand_assets",
-  "seo_audit",
-  "phone_lookup",
-  "username_lookup",
-  "password_check",
-  "phishing_check",
-  "atlas_technique_lookup",
-  "atlas_technique_search",
-  "bulk_atlas_technique_lookup",
-  "atlas_case_study_lookup",
-  "atlas_case_study_search",
-  "d3fend_defense_lookup",
-  "d3fend_defense_search",
-  "d3fend_defense_for_attack",
-  "d3fend_attack_coverage"
-]New value: +[
+  "cve_lookup",
+  "cve_search",
+  "cve_leading",
+  "bulk_cve_lookup",
+  "calculate_risk_score",
+  "get_cvss_details",
+  "exploit_lookup",
+  "kev_detail",
+  "cwe_lookup",
+  "subdomain_enum",
+  "ssl_check",
+  "tech_fingerprint",
+  "asn_lookup",
+  "ip_lookup",
+  "ioc_lookup",
+  "bulk_ioc_lookup",
+  "hash_lookup",
+  "threat_intel",
+  "threat_report",
+  "audit_domain",
+  "domain_report",
+  "dns_lookup",
+  "whois_lookup",
+  "wayback_lookup",
+  "scan_headers",
+  "check_headers",
+  "check_secrets",
+  "check_injection",
+  "check_dependencies",
+  "email_mx",
+  "email_security_posture",
+  "email_disposable",
+  "email_verify",
+  "robots_txt",
+  "redirect_chain",
+  "brand_assets",
+  "seo_audit",
+  "phone_lookup",
+  "username_lookup",
+  "password_check",
+  "phishing_check",
+  "atlas_technique_lookup",
+  "atlas_technique_search",
+  "bulk_atlas_technique_lookup",
+  "atlas_case_study_lookup",
+  "atlas_case_study_search",
+  "d3fend_defense_lookup",
+  "d3fend_defense_search",
+  "d3fend_defense_for_attack",
+  "d3fend_attack_coverage",
+  "sigma_rule_lookup",
+  "bulk_sigma_rule_lookup"
+]

Changed1 schema field changedMay 12, 2026

changedOutput schema / $defs / PivotHint / properties / tool / enum

Previous value: -[
-  "cve_lookup",
-  "cve_search",
-  "cve_leading",
-  "bulk_cve_lookup",
-  "calculate_risk_score",
-  "get_cvss_details",
-  "exploit_lookup",
-  "kev_detail",
-  "cwe_lookup",
-  "subdomain_enum",
-  "ssl_check",
-  "tech_fingerprint",
-  "asn_lookup",
-  "ip_lookup",
-  "ioc_lookup",
-  "bulk_ioc_lookup",
-  "hash_lookup",
-  "threat_intel",
-  "threat_report",
-  "audit_domain",
-  "domain_report",
-  "dns_lookup",
-  "whois_lookup",
-  "wayback_lookup",
-  "scan_headers",
-  "check_headers",
-  "check_secrets",
-  "check_injection",
-  "check_dependencies",
-  "email_mx",
-  "email_disposable",
-  "email_verify",
-  "robots_txt",
-  "redirect_chain",
-  "brand_assets",
-  "seo_audit",
-  "phone_lookup",
-  "username_lookup",
-  "password_check",
-  "phishing_check",
-  "atlas_technique_lookup",
-  "atlas_technique_search",
-  "bulk_atlas_technique_lookup",
-  "atlas_case_study_lookup",
-  "atlas_case_study_search",
-  "d3fend_defense_lookup",
-  "d3fend_defense_search",
-  "d3fend_defense_for_attack",
-  "d3fend_attack_coverage"
-]New value: +[
+  "cve_lookup",
+  "cve_search",
+  "cve_leading",
+  "bulk_cve_lookup",
+  "calculate_risk_score",
+  "get_cvss_details",
+  "exploit_lookup",
+  "kev_detail",
+  "cwe_lookup",
+  "subdomain_enum",
+  "ssl_check",
+  "tech_fingerprint",
+  "asn_lookup",
+  "ip_lookup",
+  "ioc_lookup",
+  "bulk_ioc_lookup",
+  "hash_lookup",
+  "threat_intel",
+  "threat_report",
+  "audit_domain",
+  "domain_report",
+  "dns_lookup",
+  "whois_lookup",
+  "wayback_lookup",
+  "scan_headers",
+  "check_headers",
+  "check_secrets",
+  "check_injection",
+  "check_dependencies",
+  "email_mx",
+  "email_security_posture",
+  "email_disposable",
+  "email_verify",
+  "robots_txt",
+  "redirect_chain",
+  "brand_assets",
+  "seo_audit",
+  "phone_lookup",
+  "username_lookup",
+  "password_check",
+  "phishing_check",
+  "atlas_technique_lookup",
+  "atlas_technique_search",
+  "bulk_atlas_technique_lookup",
+  "atlas_case_study_lookup",
+  "atlas_case_study_search",
+  "d3fend_defense_lookup",
+  "d3fend_defense_search",
+  "d3fend_defense_for_attack",
+  "d3fend_attack_coverage"
+]

Changed1 schema field changedMay 8, 2026

changedOutput schema / $defs / PivotHint / properties / tool / enum

Previous value: -[
-  "cve_lookup",
-  "cve_search",
-  "cve_leading",
-  "bulk_cve_lookup",
-  "exploit_lookup",
-  "kev_detail",
-  "cwe_lookup",
-  "subdomain_enum",
-  "ssl_check",
-  "tech_fingerprint",
-  "asn_lookup",
-  "ip_lookup",
-  "ioc_lookup",
-  "bulk_ioc_lookup",
-  "hash_lookup",
-  "threat_intel",
-  "threat_report",
-  "audit_domain",
-  "domain_report",
-  "dns_lookup",
-  "whois_lookup",
-  "wayback_lookup",
-  "scan_headers",
-  "check_headers",
-  "check_secrets",
-  "check_injection",
-  "check_dependencies",
-  "email_mx",
-  "email_disposable",
-  "email_verify",
-  "robots_txt",
-  "redirect_chain",
-  "brand_assets",
-  "seo_audit",
-  "phone_lookup",
-  "username_lookup",
-  "password_check",
-  "phishing_check",
-  "atlas_technique_lookup",
-  "atlas_technique_search",
-  "bulk_atlas_technique_lookup",
-  "atlas_case_study_lookup",
-  "atlas_case_study_search",
-  "d3fend_defense_lookup",
-  "d3fend_defense_search",
-  "d3fend_defense_for_attack",
-  "d3fend_attack_coverage"
-]New value: +[
+  "cve_lookup",
+  "cve_search",
+  "cve_leading",
+  "bulk_cve_lookup",
+  "calculate_risk_score",
+  "get_cvss_details",
+  "exploit_lookup",
+  "kev_detail",
+  "cwe_lookup",
+  "subdomain_enum",
+  "ssl_check",
+  "tech_fingerprint",
+  "asn_lookup",
+  "ip_lookup",
+  "ioc_lookup",
+  "bulk_ioc_lookup",
+  "hash_lookup",
+  "threat_intel",
+  "threat_report",
+  "audit_domain",
+  "domain_report",
+  "dns_lookup",
+  "whois_lookup",
+  "wayback_lookup",
+  "scan_headers",
+  "check_headers",
+  "check_secrets",
+  "check_injection",
+  "check_dependencies",
+  "email_mx",
+  "email_disposable",
+  "email_verify",
+  "robots_txt",
+  "redirect_chain",
+  "brand_assets",
+  "seo_audit",
+  "phone_lookup",
+  "username_lookup",
+  "password_check",
+  "phishing_check",
+  "atlas_technique_lookup",
+  "atlas_technique_search",
+  "bulk_atlas_technique_lookup",
+  "atlas_case_study_lookup",
+  "atlas_case_study_search",
+  "d3fend_defense_lookup",
+  "d3fend_defense_search",
+  "d3fend_defense_for_attack",
+  "d3fend_attack_coverage"
+]

AddedMay 2, 2026

TDQS

A4.7/5.0

Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

The description goes far beyond the annotations (readOnlyHint, openWorldHint, idempotentHint, destructiveHint=false) by disclosing robots.txt honoring (`Disallow: /` returns 403 `robots_txt_disallow` and skips the fetch), cache write behavior (`Cache-Control: no-store`/`private` sets `cache_respected=false`), per-target eTLD+1 rate limiting (60 req/min), and the `_untrusted` suffix on target-derived data. These operational details are not in annotations and greatly inform safe usage.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is long but each sentence earns its place: it front-loads the core purpose and output, then packs in usage context, audit rules, behavioral constraints, rate limits, and return fields. The structure is logical and dense without padding, making it an efficient reference for an AI agent.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The tool is complex with many edge cases (robots.txt, caching, rate limits, untrusted data), and the description covers all of them explicitly. Error conditions (502 on DNS/TCP/TLS failure, 403 `robots_txt_disallow`) are enumerated, and the comprehensive return field list is provided even though an output schema exists. No critical context is missing for safe and correct invocation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema already provides 100% coverage for the single parameter `domain`, including 'Registrable domain... No scheme, no path, no port. Strictly homepage-only — the bot fetches https://<domain>/ with HTTP fallback.' The description reinforces this but adds no new parameter-specific semantics beyond the schema. Baseline 3 is appropriate given full schema coverage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool performs a 'One-shot SEO audit of a domain's homepage' and produces a 0-100 composite score plus a `missing_signals` list of fixes. This specific verb+resource combination (audit homepage, score, fixes) distinguishes it from sibling tools like `audit_domain`, `domain_report`, or `geo_audit` by emphasizing SEO focus, homepage-only scope, and the scoring mechanism.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicit usage guidance is provided: 'Use BEFORE pitching SEO work to a prospect, when triaging a lead's marketing maturity, or as a structured pre-flight before deeper auditing tools (Lighthouse / SEMrush).' It also explicitly states 'Strictly homepage-only — we do NOT crawl the site,' which differentiates it from crawler-based tools and sets clear expectations for when to use this lightweight audit.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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TDQS

A4.5/5.0

Disambiguation4/5

Most tools have clearly distinct purposes, with differences between lookup/search/scan/audit for each domain. However, some overlap exists (e.g., email_mx vs email_security_posture, scan_headers vs contrast_scan) which could cause occasional confusion. Overall, boundaries are well-defined.

Naming Consistency5/5

Tool names follow a consistent verb_noun pattern (e.g., cve_lookup, check_headers, bulk_cve_lookup) with all lowercase underscores. Variations like kev_detail or ssl_check are minor and still predictable. No chaotic mixing of conventions.

Tool Count4/5

54 tools is high but justified by the broad cybersecurity scope (CVE, ATLAS, D3FEND, Sigma, domain, email, IOC, scanning). Some redundancy exists (e.g., three email-related tools), but the count is not excessive given the API's comprehensive feature set.

Completeness5/5

The tool set thoroughly covers the threat intelligence and domain investigation lifecycle: CVE/KEV/exploit/CWE, ATLAS/D3FEND/Sigma, DNS/WHOIS/SSL/subdomains, email security, IOC enrichment, and active scanning. No significant gaps are apparent for the stated cybersecurity purpose.

SEO Audit

Input Schema

Output Schema

Schema Changelog

TDQS

Glama MCP Gateway

TDQS

Resources