B
Why this grade
A solid B. Strong on robots.txt AI-agent rules and Anti-bot interstitial; tightening on Public MCP registry listing and SDK availability across languages would push this into A territory.
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Blocking issues
High-weight checks that aren't passing.
- Public MCP registry listing Host www.pathwren.workers.dev not listed in any of 2 registry/registries consulted.
- /.well-known/agent.json (A2A AgentCard) agent.json present; 3 of 4 required keys found, missing: endpoints.
Per-category breakdown
| Category | Score | Percent |
|---|---|---|
| Anti Bot | 15 / 15 | |
| Api | 15 / 15 | |
| Crawl | 23 / 23 | |
| Docs | 3 / 14 | |
| Html Meta | 2 / 8 | |
| Identity | 10 / 10 | |
| Onboarding | 6 / 6 | |
| Protocols | 4 / 18 | |
| Root Level | 20 / 20 | |
| Well Known | 24 / 32 |
Findings (33)
Anti Bot · 2
| Check | Status | Points | Notes |
|---|---|---|---|
| Anti-bot interstitial | pass | 10 / 10 | No anti-bot interstitial markers on a single polite homepage request — behavioural anti-bot can still challenge real crawler traffic. |
| User-agent sniffing | pass | 5 / 5 | Homepage responses for default and curl UAs are effectively identical. |
Api · 3
| Check | Status | Points | Notes |
|---|---|---|---|
| GraphQL introspection | skip | — | No GraphQL endpoint found at any of 3 conventional paths. |
| JSON error bodies for API callers | pass | 5 / 5 | HTTP 404 with parseable JSON body (Content-Type: application/problem+json; charset=utf-8). |
| OpenAPI specification discovery | pass | 10 / 10 | OpenAPI 3.1.0 served at /openapi.json (173 paths, 2 schemas). |
Crawl · 3
| Check | Status | Points | Notes |
|---|---|---|---|
| RSS/Atom feed | info | — | rss feed at https://www.pathwren.workers.dev/feed.xml (40 entries, linked from homepage) (informational — not graded). |
| robots.txt AI-agent rules | pass | 13 / 13 | All 13 documented AI user-agents can crawl /. |
| XML sitemap discovery | pass | 10 / 10 | Sitemap at /sitemap.xml (urlset, 432 entries). |
Docs · 2
| Check | Status | Points | Notes |
|---|---|---|---|
| Docs platform discoverability | warn | 3 / 6 | Docs found at /docs but platform is custom — crawler-friendliness is unknown. |
| SDK availability across languages | fail | 0 / 8 | No SDKs discoverable via npm, PyPI, or the docs page. |
Html Meta · 3
| Check | Status | Points | Notes |
|---|---|---|---|
| JSON-LD structured data | warn | 2 / 8 | JSON-LD present (types: Dataset); none are primary or secondary agent-discoverability signals. |
| meta description | info | — | Meta description present (151 characters) (informational — not graded). |
| Open Graph tags | info | — | No Open Graph tags on the homepage (informational — OG drives human social-share previews, not agent discoverability). |
Identity · 3
| Check | Status | Points | Notes |
|---|---|---|---|
| Email auth (SPF, DMARC, DKIM) | info | — | No SPF / DMARC / DKIM found — domain has no email auth (informational — email trust, not agent discoverability). |
| security.txt responsible-disclosure declaration | info | — | security.txt at https://www.pathwren.workers.dev/.well-known/security.txt declares a Contact (informational — a human security-researcher signal, not graded). |
| TLS + HSTS + HTTPS redirect | pass | 10 / 10 | Valid TLS cert (issuer: C=US, O=Google Trust Services, CN=WE1, expires 2026-11-29), http → https redirect confirmed. (HSTS max-age=31536000 — informational.) |
Llm Training · 3
| Check | Status | Points | Notes |
|---|---|---|---|
| Common Crawl index presence | skip | — | Common Crawl CDX endpoint was unreachable — not penalising target. |
| Hacker News mentions | info | — | 0 verified HN mention(s) of www.pathwren.workers.dev (0 raw search hits) — informational, HN chatter is a popularity signal and not graded. |
| Wikipedia article | info | — | No Wikipedia article found for "www.pathwren.workers" (informational — not graded). |
Onboarding · 1
| Check | Status | Points | Notes |
|---|---|---|---|
| API-key / signup path discoverability | pass | 6 / 6 | Homepage links to "Get started — no API key, no sign-up" at /register — matches "/api[\s\-]?key/i". |
Protocols · 2
| Check | Status | Points | Notes |
|---|---|---|---|
| Public MCP registry listing | fail | 0 / 10 | Host www.pathwren.workers.dev not listed in any of 2 registry/registries consulted. |
| A2A AgentCard conformance | warn | 4 / 8 | AgentCard partially conformant: empty `endpoints[]`. |
Registries · 3
| Check | Status | Points | Notes |
|---|---|---|---|
| GitHub public repository | skip | — | No GitHub repositories attributable to www.pathwren.workers.dev — name matches without a verifiable attribution signal are not counted. |
| npm SDK package | skip | — | No npm packages attributable to www.pathwren.workers.dev — name matches without a verifiable attribution signal are not counted. |
| PyPI SDK package | skip | — | No PyPI package at the 2 name(s) probed for www.pathwren.workers.dev. |
Root Level · 3
| Check | Status | Points | Notes |
|---|---|---|---|
| /ai.txt AI-crawler directives | pass | 4 / 4 | ai.txt present, 4861 bytes. |
| /llms-full.txt long-form index | pass | 8 / 8 | llms-full.txt present, 170.5 KB. |
| /llms.txt index for LLMs | pass | 8 / 8 | llms.txt present, 59.5 KB, starts with '# AI Crawler Index'. |
Well Known · 5
| Check | Status | Points | Notes |
|---|---|---|---|
| /.well-known/agent.json (A2A AgentCard) | warn | 6 / 10 | agent.json present; 3 of 4 required keys found, missing: endpoints. |
| /.well-known/ai-plugin.json manifest | pass | 8 / 8 | ai-plugin.json present with all recommended keys. |
| /.well-known/mcp.json (Model Context Protocol) | warn | 4 / 8 | mcp.json parses but lacks MCP indicator keys (server / capabilities / tools). Could be a different use of the path. |
| OpenID Connect configuration + dynamic registration | skip | — | No /.well-known/openid-configuration — site does not advertise an OIDC provider. |
| /.well-known/openapi.{json,yaml} | pass | 6 / 6 | OpenAPI 3.1.0 served at /.well-known/openapi.json (173 paths). |
Score over time
- Latest
- 76 — flat
- Best
- 76
- Worst
- 48
- Scans
- 7
Scan history
| When | Grade | Score | Checks | Change | Open scan |
|---|---|---|---|---|---|
| 2 Sep 2026, 06:59 | B | 76 | 33 | → | Open · Compare |
Since 1 Sep:no flips |
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| 1 Sep 2026, 17:02 | B | 76 | 33 | ↑ | Open · Compare |
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| 1 Sep 2026, 13:53 | D | 53 | 33 | → | Open · Compare |
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| 1 Sep 2026, 12:51 | D | 52 | 33 | → | Open · Compare |
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| 1 Sep 2026, 12:48 | D | 52 | 33 | ↑ | Open · Compare |
Since 1 Sep:
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| 1 Sep 2026, 12:42 | D | 48 | 33 | → | Open · Compare |
Since 1 Sep:no flips |
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| 1 Sep 2026, 02:28 | D | 48 | 33 | Open | |
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