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llmstxt.org

The /llms.txt file, v2 – llms-txt

Last scanned Aug 24, 2026, 1:21 PM

87

Overall score

Great

Summary

A proposal to standardise on using an /llms.txt file to provide information to help agents use a website. This website uses Cloudflare Analytics hosted on Cloudflare behind Cloudflare CDN. SEO is good (85/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing canonical link.

A proposal to standardise on using an /llms.txt file to provide information to help agents use a website.

United States
Hosted on Cloudflare

Top issues to fix

6 issues found · 2 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

85

SEO

2 issue(s) found

100

Performance

232 ms

65

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

A proposal to standardise on using an /llms.txt file to provide information to help agents use a website.

Meta tags

Title
The /llms.txt file, v2 – llms-txt
Description
A proposal to standardise on using an /llms.txt file to provide information to help agents use a website.
Canonical
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0, user-scalable=yes
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
The /llms.txt file, v2 – llms-txt
og:description
A proposal to standardise on using an /llms.txt file to provide information to help agents use a website.
og:type
og:url

Twitter Card

twitter:card
summary_large_image
twitter:title
The /llms.txt file, v2 – llms-txt
twitter:description
A proposal to standardise on using an /llms.txt file to provide information to help agents use a website.

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
Cloudflare
CDN provider
Cloudflare
IP address
172.67.216.34
ASN
AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)

DNS records

TypeValue
A
  • 172.67.216.34
  • 104.21.67.66
AAAA
  • 2606:4700:3032::6815:4342
  • 2606:4700:3035::ac43:d822
MX
TXT
NS
  • melissa.ns.cloudflare.com
  • roman.ns.cloudflare.com
CAA
CNAME
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
llmstxt.org
Valid from
Aug 11, 2026
Valid to
Nov 9, 2026
Days until expiry
76
SAN domains
llmstxt.org, *.llmstxt.org

Security headers

  • Strict-Transport-SecurityMissing
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 10 · H3 0

Links

52 internal · 31 external · 0 broken

Images

1 total · 0 missing alt

Scripts / Styles

17 scripts · 7 stylesheets

JS / CSS size

50.0 KB · 2.1 KB

Page size

51.1 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
0
sitemap.xml
Found
URLs in sitemap
7

SEO issues

  • Missing canonical link
  • No structured data (JSON-LD) found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://llmstxt.org
Final URL
https://llmstxt.org
HTTP status
200
HTTP version
HTTP/2
Response time
231 ms
HTML size
51.1 KB
Redirect chain
https://llmstxt.org

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Frequently asked questions

What technology does llmstxt.org use?
llmstxt.org is built with Cloudflare Analytics.
Is llmstxt.org secure (HTTPS)?
Yes. llmstxt.org uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Nov 9, 2026.
Who hosts llmstxt.org?
llmstxt.org is hosted on Cloudflare, behind Cloudflare CDN.
What is llmstxt.org's SEO score?
llmstxt.org scored 85/100 for SEO in the latest analysis (great).
What is llmstxt.org's overall website score?
llmstxt.org has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.