AstraVerify Domain Trust Check

Check discoverability (search and AI crawler readiness)

check_discoverability

Read-onlyIdempotent

Check whether search engines and AI assistants can crawl, read and quote this site. Use when the person asks about SEO basics, robots.txt, sitemaps, llms.txt, or whether Google, ChatGPT, Claude or Perplexity can see their site. Input: a bare domain like example.com. Returns a Discoverability score 0-100 broken into crawl access (25: robots.txt, plus what the edge actually serves to Googlebot, Bingbot, OAI-SearchBot, PerplexityBot, ClaudeBot and GPTBot), site plumbing (20: HTTPS, one canonical host, sitemap, real 404s), page metadata (20), structured data (20) and answer-engine readiness (15: llms.txt, a definitional opening, question-form headings). Every finding carries the exact file, tag or record to publish. It makes roughly 15 fetches over a few seconds - robots.txt, the sitemap, the root page, up to four pages listed in the sitemap, llms.txt, the preview image, one deliberately missing URL to see how 404s are handled, and the root page once as each of the six crawlers. It identifies itself as AstraVerifyBot, except on those six checks, where the point is to send the crawler's own user-agent. It fetches nothing off that domain and crawls no further. Cached 15 minutes. It changes nothing on the site. This is a separate scan from check_email_security and does not include it.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`domain`	Yes	The domain to check, as the person gave it (no scheme, no path). Reserved names such as example.com are refused.
`refresh`	No	Force a fresh scan instead of the cached result (rate limited)

Output Schema

TableJSON Schema

Name	Required	Description
`cdn`	No
`raw`	No	What the components add up to, before the cap
`grade`	Yes	A+ to F, or null alongside a null score
`score`	Yes	Out of 100, exactly as astraverify.com shows it. Null when not_applicable or inconclusive is set.
`capped`	No
`domain`	Yes
`reason`	No	Why score is null, when it is
`verdict`	No	One sentence on what engines can do with the site
`held_back`	No	Points the cap holds back while a fix is open (89 cap) or a critical one is (69). Not taken from any component: sum(components.points) - held_back = score
`components`	No
`open_fixes`	No	Findings above info level
`report_url`	No	The report page for this domain on astraverify.com
`request_id`	No	req_... for this call. Quote it when reporting a problem with the result.
`website_at`	No	When the domain asked about serves no website but its registrable domain does, that domain's discoverability result. The score belongs to `domain` here, not to the domain in the request.
`not_checked`	No	Parts skipped in this scan
`inconclusive`	No	The site could not be fetched, so the scan could not be completed. A failure to measure, not a finding about the site.
`canonical_host`	No
`not_applicable`	No	The domain publishes no web address, so there is no website to assess. Not a low score: score and grade are null and there are no recommendations. verdict names the domain to scan instead.
`recommendations`	No
`cache_age_seconds`	No	Age of the result; 0 means it was scanned just now
`verified_component`	No	Set by verify_fix: the component re-checked

Schema Changelog

Changes observed during successful MCP inspections.

Changed2 schema fields changedOct 9, 2026

addedOutput schema / properties / website_at / properties / components

Added value: +{
+  "description": "Component headlines only; scan this domain for the checks behind them",
+  "items": {
+    "properties": {
+      "key": {
+        "type": "string"
+      },
+      "max": {
+        "type": "integer"
+      },
+      "name": {
+        "type": "string"
+      },
+      "points": {
+        "type": "integer"
+      }
+    },
+    "type": "object"
+  },
+  "type": "array"
+}

addedOutput schema / properties / website_at / properties / report_url
```
Added value: +{
+  "type": "string"
+}
```

Changed1 schema field changedOct 9, 2026

addedOutput schema / properties / website_at

Added value: +{
+  "description": "When the domain asked about serves no website but its registrable domain does, that domain's discoverability result. The score belongs to `domain` here, not to the domain in the request.",
+  "properties": {
+    "cache_age_seconds": {
+      "type": "integer"
+    },
+    "domain": {
+      "type": "string"
+    },
+    "grade": {
+      "type": "string"
+    },
+    "open_fixes": {
+      "type": "integer"
+    },
+    "score": {
+      "type": "integer"
+    },
+    "verdict": {
+      "type": "string"
+    }
+  },
+  "type": [
+    "object",
+    "null"
+  ]
+}

Changed1 schema field changedSep 27, 2026

addedOutput schema / properties / request_id

Added value: +{
+  "description": "req_... for this call. Quote it when reporting a problem with the result.",
+  "type": "string"
+}

Changed2 schema fields changedSep 27, 2026

addedOutput schema / properties / held_back

Added value: +{
+  "description": "Points the cap holds back while a fix is open (89 cap) or a critical one is (69). Not taken from any component: sum(components.points) - held_back = score",
+  "type": "integer"
+}

changedOutput schema / properties / raw / description

Previous value: -"Before the cap rules that hold the headline back while a fix is open"New value: +"What the components add up to, before the cap"

Changed11 schema fields changedSep 26, 2026
- changedOutput schema / properties / canonical_host / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / cdn / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / recommendations / items / properties / fix / description
```
Previous value: -"The exact change to publish: a DNS record (name, type, value) or a file or tag (kind, label, value, where)"New value: +"The exact change to publish: a DNS record (name, type, value) or a file or tag (kind, label, value, where). Null when there is nothing to publish, for example \"turn on DKIM in your provider\"."
```
- changedOutput schema / properties / recommendations / items / properties / fix / properties / kind / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / recommendations / items / properties / fix / properties / label / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / recommendations / items / properties / fix / properties / name / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / recommendations / items / properties / fix / properties / note / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / recommendations / items / properties / fix / properties / type / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / recommendations / items / properties / fix / properties / value / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / recommendations / items / properties / fix / properties / where / type
```
Previous value: -"string"New value: +[
+  "string",
+  "null"
+]
```
- changedOutput schema / properties / recommendations / items / properties / fix / type
```
Previous value: -"object"New value: +[
+  "object",
+  "null"
+]
```

Changed7 schema fields changedSep 26, 2026

changedOutput schema / properties / grade / description

Previous value: -"A+ to F"New value: +"A+ to F, or null alongside a null score"

changedOutput schema / properties / grade / type

Previous value: -"string"New value: +[
+  "string",
+  "null"
+]

addedOutput schema / properties / inconclusive

Added value: +{
+  "description": "The site could not be fetched, so the scan could not be completed. A failure to measure, not a finding about the site.",
+  "type": "boolean"
+}

addedOutput schema / properties / not_applicable

Added value: +{
+  "description": "The domain publishes no web address, so there is no website to assess. Not a low score: score and grade are null and there are no recommendations. verdict names the domain to scan instead.",
+  "type": "boolean"
+}

addedOutput schema / properties / reason

Added value: +{
+  "description": "Why score is null, when it is",
+  "type": [
+    "string",
+    "null"
+  ]
+}

changedOutput schema / properties / score / description

Previous value: -"Out of 100, exactly as astraverify.com shows it"New value: +"Out of 100, exactly as astraverify.com shows it. Null when not_applicable or inconclusive is set."

changedOutput schema / properties / score / type

Previous value: -"integer"New value: +[
+  "integer",
+  "null"
+]

Changed1 schema field changedSep 23, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "cache_age_seconds": {
+      "description": "Age of the result; 0 means it was scanned just now",
+      "type": "integer"
+    },
+    "canonical_host": {
+      "type": "string"
+    },
+    "capped": {
+      "type": "boolean"
+    },
+    "cdn": {
+      "type": "string"
+    },
+    "components": {
+      "items": {
+        "description": "One scored area of the domain",
+        "properties": {
+          "enabled": {
+            "type": "boolean"
+          },
+          "key": {
+            "type": "string"
+          },
+          "max": {
+            "type": "integer"
+          },
+          "name": {
+            "type": "string"
+          },
+          "points": {
+            "type": "integer"
+          },
+          "summary": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "key",
+          "name",
+          "points",
+          "max"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "domain": {
+      "type": "string"
+    },
+    "grade": {
+      "description": "A+ to F",
+      "type": "string"
+    },
+    "not_checked": {
+      "description": "Parts skipped in this scan",
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "open_fixes": {
+      "description": "Findings above info level",
+      "type": "integer"
+    },
+    "raw": {
+      "description": "Before the cap rules that hold the headline back while a fix is open",
+      "type": "integer"
+    },
+    "recommendations": {
+      "items": {
+        "properties": {
+          "component": {
+            "type": "string"
+          },
+          "fix": {
+            "description": "The exact change to publish: a DNS record (name, type, value) or a file or tag (kind, label, value, where)",
+            "properties": {
+              "kind": {
+                "type": "string"
+              },
+              "label": {
+                "type": "string"
+              },
+              "name": {
+                "type": "string"
+              },
+              "note": {
+                "type": "string"
+              },
+              "type": {
+                "type": "string"
+              },
+              "value": {
+                "type": "string"
+              },
+              "where": {
+                "type": "string"
+              }
+            },
+            "type": "object"
+          },
+          "id": {
+            "type": "string"
+          },
+          "scan": {
+            "enum": [
+              "email",
+              "discoverability"
+            ],
+            "type": "string"
+          },
+          "severity": {
+            "enum": [
+              "critical",
+              "important",
+              "info"
+            ],
+            "type": "string"
+          },
+          "tags": {
+            "items": {
+              "type": "string"
+            },
+            "type": "array"
+          },
+          "title": {
+            "type": "string"
+          },
+          "why": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id",
+          "severity",
+          "title"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "report_url": {
+      "description": "The report page for this domain on astraverify.com",
+      "type": "string"
+    },
+    "score": {
+      "description": "Out of 100, exactly as astraverify.com shows it",
+      "type": "integer"
+    },
+    "verdict": {
+      "description": "One sentence on what engines can do with the site",
+      "type": "string"
+    },
+    "verified_component": {
+      "description": "Set by verify_fix: the component re-checked",
+      "type": "string"
+    }
+  },
+  "required": [
+    "domain",
+    "score",
+    "grade"
+  ],
+  "type": "object"
+}

First observedSep 21, 2026

TDQS

Score is being calculated.

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