llmstxt.org
llms-txt
The /llms.txt file, v2 – llms-txt
A proposal to standardise on using an /llms.txt file to provide information to help agents use a website.
The official specification of the llms.txt standard.
Submitted URLs are declarations until checked. Verification inspects published content and does not execute third-party tools.
The score measures observable documentation quality. Each component below lists its earned points, exact checks, and source observations. It is not a prediction of AI rankings or citations.
Overall readiness
Confidence: high· V2
How this score is calculated
round(95 ÷ 100 × 100) = 95/100
95 points earned out of 100 assessed. All 100 available points were assessed. The checks below show each result. Optional integrations and file size earn no extra points.
Full scoring rules and worked exampleCurrent usable primary file: 25/25.
Current llms.txt retrieval succeeded (HTTP 304); usable text verified.
llms.txt: Documentation sections: llms.txt; Docs. Derived from headings; source checked 2026-11-10.
Listing updated: . Machine-readable profile (JSON)
{
"schemaVersion": "1.0",
"name": "llms.txt Standard",
"slug": "llms-txt-standard",
"website": "https://llmstxt.org",
"category": "content",
"description": "The official specification of the llms.txt standard.",
"capabilities": [
"llmsTxt documentation"
],
"aiResources": {
"llmsTxt": {
"type": "llmsTxt",
"url": "https://llmstxt.org/llms.txt",
"status": "verified",
"available": true,
"httpStatus": 304,
"checkedAt": "2026-11-10T22:17:07.392Z",
"lastSuccessfulAt": "2026-11-10T22:17:07.392Z",
"contentType": "text/plain; charset=utf-8",
"contentSize": 637,
"estimatedTokens": 160,
"tokenMethod": "UTF-16 characters / 4 (approximation)",
"contentHash": "8b45bd6172aba50751b819e17d94bc3b4e98e41a68b0a299e06c0fc78699ec5a",
"internalLinks": 3,
"externalLinks": 0,
"document": {
"h1Count": 1,
"firstBlockIsH1": true,
"title": "llms.txt",
"usefulTitle": true,
"headingCount": 2,
"uniqueHeadingCount": 2,
"hasSections": true,
"orderedHeadings": true,
"sectionWithContent": true,
"fileListLinks": 3,
"summaryPresent": true,
"contextPresent": false,
"validLinks": 3,
"invalidLinks": 0,
"duplicateLinks": 0,
"descriptiveLinks": 3,
"annotatedLinks": 3
},
"linkHealth": {
"eligibleCount": 3,
"selectedCount": 3,
"sampledCount": 3,
"working": 3,
"broken": 0,
"unknown": 0,
"checkedAt": "2026-11-10T22:17:07.678Z",
"sourceHash": "8b45bd6172aba50751b819e17d94bc3b4e98e41a68b0a299e06c0fc78699ec5a",
"method": "deterministic sample, at most 5 URLs, at most 2 concurrent hosts, 15s budget",
"results": [
{
"url": "https://llmstxt.org/ed.md",
"httpStatus": 200,
"checkedAt": "2026-11-10T22:17:07.678Z",
"attempted": true,
"status": "working",
"reason": "http_success"
},
{
"url": "https://llmstxt.org/intro.html.md",
"httpStatus": 200,
"checkedAt": "2026-11-10T22:17:07.678Z",
"attempted": true,
"status": "working",
"reason": "http_success"
},
{
"url": "https://llmstxt.org/index.md",
"httpStatus": 200,
"checkedAt": "2026-11-10T22:17:07.678Z",
"attempted": true,
"status": "working",
"reason": "http_success"
}
]
},
"headings": [
"llms.txt",
"Docs"
],
"warnings": [],
"summary": "Documentation sections: llms.txt; Docs.",
"summarySourceHash": "8b45bd6172aba50751b819e17d94bc3b4e98e41a68b0a299e06c0fc78699ec5a",
"processingVersion": "2.0",
"method": "markdown-ast-analysis"
},
"llmsFullTxt": null,
"webmcp": null
},
"readiness": {
"score": 95,
"version": "2.0",
"confidence": "high",
"components": [
{
"name": "availability",
"weight": 25,
"assessedWeight": 25,
"points": 25,
"rules": [
{
"id": "current_access",
"label": "Current usable primary file",
"weight": 25,
"observation": "Current llms.txt retrieval succeeded (HTTP 304); usable text verified.",
"points": 25
}
],
"explanation": "Current usable primary file: 25/25."
},
{
"name": "structure",
"weight": 25,
"assessedWeight": 25,
"points": 25,
"rules": [
{
"id": "title",
"label": "One project H1 at the beginning",
"weight": 10,
"observation": "1 H1 heading(s); starts with H1: yes.",
"points": 10
},
{
"id": "sections",
"label": "Coherent content sections",
"weight": 5,
"observation": "H2 with content: yes; no heading-level jumps: yes.",
"points": 5
},
{
"id": "file_lists",
"label": "Documentation links organized in lists",
"weight": 5,
"observation": "3 valid link occurrence(s) inside Markdown lists.",
"points": 5
},
{
"id": "heading_uniqueness",
"label": "Non-repeated headings",
"weight": 5,
"observation": "2 unique heading(s) out of 2; code examples are excluded.",
"points": 5
}
],
"explanation": "One project H1 at the beginning: 10/10. Coherent content sections: 5/5. Documentation links organized in lists: 5/5. Non-repeated headings: 5/5."
},
{
"name": "links",
"weight": 25,
"assessedWeight": 25,
"points": 25,
"rules": [
{
"id": "link_syntax",
"label": "Resolvable HTTP(S) link syntax",
"weight": 5,
"observation": "3 valid URL occurrence(s), 0 malformed, unsupported or unresolved.",
"points": 5
},
{
"id": "link_uniqueness",
"label": "Unique documentation destinations",
"weight": 5,
"observation": "3 unique destination(s) from 3 valid occurrence(s).",
"points": 5
},
{
"id": "link_labels",
"label": "Descriptive link labels",
"weight": 2.5,
"observation": "3 of 3 unique links have non-placeholder labels. This is a text heuristic, not a semantic guarantee.",
"points": 2.5
},
{
"id": "link_notes",
"label": "Context beside file links",
"weight": 2.5,
"observation": "3 of 3 unique links have notes beside a Markdown list link.",
"points": 2.5
},
{
"id": "link_health",
"label": "Sampled destination accessibility",
"weight": 10,
"observation": "3 of 3 destinations sampled: 3 working, 0 confirmed 404/410, 0 unknown. Only working and confirmed-broken results enter this fraction.",
"points": 10
}
],
"explanation": "Resolvable HTTP(S) link syntax: 5/5. Unique documentation destinations: 5/5. Descriptive link labels: 2.5/2.5. Context beside file links: 2.5/2.5. Sampled destination accessibility: 10/10."
},
{
"name": "confidence",
"weight": 15,
"assessedWeight": 15,
"points": 15,
"rules": [
{
"id": "verification_age",
"label": "Age of last successful verification",
"weight": 10,
"observation": "Last success: 2026-11-10T22:17:07.392Z. Full points through day 8 (7-day schedule plus 1-day grace), 60% through day 30, 20% thereafter or for an unknown date.",
"points": 10
},
{
"id": "latest_success",
"label": "Latest primary check succeeded",
"weight": 5,
"observation": "Latest primary verification succeeded.",
"points": 5
}
],
"explanation": "Age of last successful verification: 10/10. Latest primary check succeeded: 5/5."
},
{
"name": "metadata",
"weight": 10,
"assessedWeight": 10,
"points": 5,
"rules": [
{
"id": "summary",
"label": "Useful summary blockquote",
"weight": 5,
"observation": "A blockquote before the first H2 with at least 20 non-whitespace characters and no placeholder-only text.",
"points": 5
},
{
"id": "context",
"label": "Useful introductory context",
"weight": 5,
"observation": "An introductory paragraph before the first H2 with at least 20 non-whitespace characters and no placeholder-only text. Listing form fields do not earn these points.",
"points": 0
}
],
"explanation": "Useful summary blockquote: 5/5. Useful introductory context: 0/5."
}
],
"earnedPoints": 95,
"assessedWeight": 100,
"availableWeight": 100,
"provisional": false,
"calculatedAt": "2026-11-10T22:17:08.605Z",
"lastVerifiedAt": "2026-11-10T22:17:07.392Z",
"evidence": {
"sourceUrl": "https://llmstxt.org/llms.txt",
"contentHash": "8b45bd6172aba50751b819e17d94bc3b4e98e41a68b0a299e06c0fc78699ec5a",
"processingVersion": "2.0",
"retrievedAt": "2026-11-10T22:17:07.392Z"
},
"linkSampling": {
"eligibleCount": 3,
"selectedCount": 3,
"sampledCount": 3,
"working": 3,
"broken": 0,
"unknown": 0,
"checkedAt": "2026-11-10T22:17:07.678Z",
"sourceHash": "8b45bd6172aba50751b819e17d94bc3b4e98e41a68b0a299e06c0fc78699ec5a",
"method": "deterministic sample, at most 5 URLs, at most 2 concurrent hosts, 15s budget",
"results": [
{
"url": "https://llmstxt.org/ed.md",
"httpStatus": 200,
"checkedAt": "2026-11-10T22:17:07.678Z",
"attempted": true,
"status": "working",
"reason": "http_success"
},
{
"url": "https://llmstxt.org/intro.html.md",
"httpStatus": 200,
"checkedAt": "2026-11-10T22:17:07.678Z",
"attempted": true,
"status": "working",
"reason": "http_success"
},
{
"url": "https://llmstxt.org/index.md",
"httpStatus": 200,
"checkedAt": "2026-11-10T22:17:07.678Z",
"attempted": true,
"status": "working",
"reason": "http_success"
}
]
},
"warnings": [
"This measures observable documentation, not model rankings or citation probability.",
"H1 is the only required section in the llms.txt proposal. Other checks are LLMSList quality preferences; missing optional sections do not make usable text invalid."
]
},
"updatedAt": "2026-11-10T22:17:08.606Z"
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AI Resource Readiness
Confidence: medium· V2
One project H1 at the beginning: 10/10. Coherent content sections: 5/5. Documentation links organized in lists: 5/5. Non-repeated headings: 5/5.
1 H1 heading(s); starts with H1: yes.
H2 with content: yes; no heading-level jumps: yes.
3 valid link occurrence(s) inside Markdown lists.
2 unique heading(s) out of 2; code examples are excluded.
Resolvable HTTP(S) link syntax: 5/5. Unique documentation destinations: 5/5. Descriptive link labels: 2.5/2.5. Context beside file links: 2.5/2.5. Sampled destination accessibility: 10/10.
3 valid URL occurrence(s), 0 malformed, unsupported or unresolved.
3 unique destination(s) from 3 valid occurrence(s).
3 of 3 unique links have non-placeholder labels. This is a text heuristic, not a semantic guarantee.
3 of 3 unique links have notes beside a Markdown list link.
3 of 3 destinations sampled: 3 working, 0 confirmed 404/410, 0 unknown. Only working and confirmed-broken results enter this fraction.
Age of last successful verification: 10/10. Latest primary check succeeded: 5/5.
Last success: 2026-11-10T22:17:07.392Z. Full points through day 8 (7-day schedule plus 1-day grace), 60% through day 30, 20% thereafter or for an unknown date.
Latest primary verification succeeded.
Useful summary blockquote: 5/5. Useful introductory context: 0/5.
A blockquote before the first H2 with at least 20 non-whitespace characters and no placeholder-only text.
An introductory paragraph before the first H2 with at least 20 non-whitespace characters and no placeholder-only text. Listing form fields do not earn these points.
How to improve: Add a useful > summary and a separate introductory paragraph before the first ## section in the file itself. Each must contain at least 20 non-whitespace characters and not consist only of placeholder text. Each earns five default points. Editing listing form fields alone does not improve this component.
80–100%50–79%0–49%Gray: not assessed
Component colors use earned points ÷ assessed points. Unmeasured checks are excluded from the assessed maximum. Model v2.0. Calculated 2026-11-10 22:17:08 UTC.
3 of 3 unique destinations checked: 3 working, 0 confirmed broken, 0 unknown. We check up to five destinations, not every page. A successful HTTP response does not prove that a page is relevant or factually correct.
Sample checked: 2026-11-10 22:17:07 UTC · Source snapshot: 8b45bd6172ab
Destination responded successfully
Destination responded successfully
Destination responded successfully
Only HTTP 404/410 is classified as confirmed broken. HTTP 403/429, timeouts and incomplete checks remain unknown. If all sample outcomes are unknown, the link-health check is excluded from the assessed maximum and the score is marked provisional.
Last verified: 2026-11-10.
This measures observable documentation, not model rankings or citation probability.
H1 is the only required section in the llms.txt proposal. Other checks are LLMSList quality preferences; missing optional sections do not make usable text invalid.
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