Content management systems in the vendors section
In short
7 content management systems are profiled: WordPress, HubSpot Content Hub, Drupal, TYPO3, Ghost, Sanity and Strapi. On llms.txt the count is 1 supports, 3 partial and 3 no statement. The two headless systems leave the HTML to the customer's own front end.
Crawl edition 2026-11-04, page updated 2026-11-05. How the viewer, the index and the scores work.
A content management system here is software that stores and edits a site's content, whether the customer runs it or the vendor does. 3 of the 7 list an open-source product, and 2 list a paid subscription. Of the 7 home pages the plain fetch could request, 3 answered a markdown request with markdown and 4 served an llms.txt.
Filter by typeDocs platformsFrameworksContent management systemsSite buildersHosts, CDNs and edge productsMarkdown and llms.txt toolingAll vendors
The six standards across content management systems
| Standard | Supports | Partial | No statement |
|---|---|---|---|
| llms-txt generates or serves /llms.txt | 1 | 3 | 3 |
| markdown-negotiation answers Accept: text/markdown on the same URL | 0 | 2 | 5 |
| markdown-twin publishes a .md copy of each page | 1 | 3 | 3 |
| initial-html puts the page content in the server HTML by default | 1 | 0 | 6 |
| real-404 answers a missing path with a 404 status | 2 | 1 | 4 |
| vary-accept sends Vary: Accept when it negotiates | 0 | 1 | 6 |
Content management systems
| Vendor | What it does for this layer | Standards stated | Pricing model | Readings of its own site | Last read |
|---|---|---|---|---|---|
| Drupal | Open-source PHP CMS that renders pages on the server; llms.txt and per-entity markdown come from the contributed LLM Support recipe, and JSON-LD from the Schema.org Metatag module. | None stated as supported 2 partial: llms-txt, markdown-twin | open source | Cloudflare scan 13, 2026-11-05 Ora score 31, 2026-08-24 | 2026-11-05 |
| Ghost | Open-source publishing platform for blogs and newsletters. Since July 2026 Ghost can write /llms.txt and serve a markdown copy of each public post at its URL plus .md, switched on under Settings, Meta data. | 2 supported: llms-txt, markdown-twin | No price read | Cloudflare scan 20, 2026-11-05 Ora score 70, 2026-11-01 | 2026-11-05 |
| HubSpot Content Hub | HubSpot Content Hub is the HubSpot CMS, which builds pages from HubL templates on HubSpot hosting, returns error page templates for 404 and 500 status codes, and edits robots.txt and the sitemap per connected domain. | 1 supported: real-404 | freemium, subscription | Cloudflare scan 20, 2026-11-05 Ora score 72, 2026-11-03 | 2026-11-05 |
| Sanity | Headless content platform; the customer's front end renders the HTML. Sanity's own learning site serves markdown on Accept: text/markdown from structured content, and Sanity publishes a field guide on doing the same. | None stated as supported 1 partial: markdown-negotiation | freemium | Cloudflare scan 67, 2026-11-05 Ora score 72, 2026-11-01 | 2026-11-05 |
| Strapi | Open-source headless CMS written in TypeScript on Node.js, self-hosted or on Strapi Cloud; it serves content as an API, so what an agent reads depends on the front end that renders it. | None stated as supported | open source, subscription | Cloudflare scan 20, 2026-11-05 Ora score 64, 2026-10-29 | 2026-11-05 |
| TYPO3 | Open-source PHP CMS that renders pages on the server, with site-level error handlers per status code; llms.txt and .md copies of pages come from extensions such as the LLMS TXT Generator documented on docs.typo3.org. | None stated as supported 3 partial: llms-txt, markdown-twin, real-404 | No price read | Cloudflare scan 20, 2026-11-05 Ora score 59, 2026-10-30 | 2026-11-05 |
| WordPress | WordPress is open-source PHP software whose themes render pages on the server, with a core XML sitemap, a virtual robots.txt and real 404 handling; llms.txt and markdown output come from plugins, not core. | 2 supported: initial-html, real-404 4 partial: llms-txt, markdown-negotiation, markdown-twin, vary-accept | open source | Cloudflare scan 33, 2026-11-05 Ora score 65, 2026-11-01 | 2026-11-05 |
The other types: docs platforms, frameworks, site builders, hosts, CDNs and edge products, tools for markdown and llms.txt. Back to all vendors.
Sources
- llms.txt proposal (llmstxt.org) https://llmstxt.org/, read 5 November 2026
- Cloudflare: isitagentready.com https://isitagentready.com/, read 5 November 2026
Last reviewed 5 November 2026