--- title: "Rspress: vendor profile: Agent Ready HTML" description: "Rspress, a framework: 4 of 6 standards stated as supported, 16 sourced facts, dated plans and what it does not do. Read 2026-11-05." canonical: https://agentreadyhtml.com/vendors/rspress/ site: "Agent Ready HTML" last_updated: 2026-11-05 section: "Vendors" --- # Rspress: vendor profile: Agent Ready HTML > Rspress, a framework: 4 of 6 standards stated as supported, 16 sourced facts, dated plans and what it does not do. Read 2026-11-05. Source: https://agentreadyhtml.com/vendors/rspress/ Site: Agent Ready HTML Last reviewed: 2026-11-05 # Rspress: vendor profile In short Rspress 2.1.0 turned SSG-MD on by default, so a default test build wrote llms.txt, llms-full.txt, a .md file per page, sitemap.xml and 404.html with no added config. Accept: text/markdown needs a host rewrite, sitemap entries stay relative until siteOrigin is set, and rspress.rs sent markdown without a Vary header. ## At a glance **standards.txt** rspress ```text llms-txt = supports markdown-negotiation = partial markdown-twin = supports initial-html = supports real-404 = supports vary-accept = no statement ``` 4 supports, 1 partial or announced, 1 no statement. **Rspress** Framework Rsbuild and React static site generator that pre-renders every page to HTML and, since 2.1.0, writes llms.txt, llms-full.txt, a .md twin per page, sitemap.xml and 404.html by default; Accept: text/markdown needs a host rewrite. Type [Framework](https://agentreadyhtml.com/vendors/by-type/framework/) Operator, as the facts below state it ByteDance (web-infra-dev team) Home page [rspress.rs](https://rspress.rs/), answered HTTP 200 on 2026-11-05 Last read 5 November 2026 ## What it does for this layer - Rspress pre-renders each page into an HTML file with full content during rspress build; ssg: false switches to client rendering with an empty page container. \[primary source\] [source](https://rspress.rs/guide/basic/ssg), read 5 November 2026. - Rspress 2.1.0, announced on 2026-11-02, turns SSG-MD on by default, so production builds write llms.txt, llms-full.txt and a .md file beside each HTML page without llms: true. \[primary source, 2026-11-02\] [source](https://rspress.rs/blog/rspress-v2-1), read 5 November 2026. - Rspress SSG-MD renders MDX and React components straight to Markdown with a renderToMarkdownString method instead of converting finished HTML. \[primary source\] [source](https://rspress.rs/blog/agent-friendly-website), read 5 November 2026. - Rspress 2.1.0 writes sitemap.xml on every production build and takes siteOrigin plus base for absolute URLs, replacing @rspress/plugin-sitemap. \[primary source\] [source](https://rspress.rs/blog/rspress-v2-1), read 5 November 2026. - Rspress 2.1.0 changed route.cleanUrls to true, so links drop .html and the host has to serve /foo.html when /foo is requested. \[primary source\] [source](https://rspress.rs/blog/rspress-v2-1), read 5 November 2026. - Rspress's injectLlmsHint, on by default with SSG-MD, places visually hidden plain text near the top of each HTML page that points agents to /llms.txt and the page's Markdown URL. \[primary source\] [source](https://rspress.rs/blog/agent-friendly-website), read 5 November 2026. - Rspress has no server of its own to pick HTML or Markdown by Accept header; rspress.rs relies on a Cloudflare rewrite that sends Accept: text/markdown requests to the .md file. \[primary source\] [source](https://rspress.rs/blog/agent-friendly-website), read 5 November 2026. - Rspress 2.1.0 exposes six WebMCP tools by default, among them get\_page, search\_docs and navigate, for agents running in the browser. \[primary source\] [source](https://rspress.rs/blog/rspress-v2-1), read 5 November 2026. - @rspress/plugin-llms is kept only as a fallback for sites whose code cannot run under SSR, so SSG and SSG-MD stay off. \[primary source\] [source](https://rspress.rs/plugin/official-plugins/llms), read 5 November 2026. - Rspress 2.0, announced on 2026-01-30, introduced built-in llms.txt generation and SSG-MD alongside a new default theme. \[primary source, 2026-01-30\] [source](https://rspress.rs/blog/rspress-v2), read 5 November 2026. - Rspress says its own website scored 100/100 in the AFDocs agent-friendly documentation evaluation. \[vendor claim\] [source](https://rspress.rs/blog/rspress-v2-1), read 5 November 2026. - rspress.rs returned text/markdown for Accept: text/markdown on /guide/start/introduction on 2026-11-05 but sent no Vary header with it. \[observed\] [source](https://rspress.rs/blog/agent-friendly-website), read 5 November 2026. - Rspress is released under the MIT License, copyright Bytedance, Inc. and its affiliates. \[primary source\] [source](https://raw.githubusercontent.com/web-infra-dev/rspress/main/LICENSE), read 5 November 2026. ## Test build - A default Rspress project (npm create rspress@2.1.0 -- --dir rspress-test --template basic --no-git; npm install; npm run build with @rspress/core 2.1.0) on 2026-11-05 wrote llms.txt, llms-full.txt, index.md, sitemap.xml and 404.html with no added config. \[observed\] [source](https://rspress.rs/guide/basic/ssg-md), read 5 November 2026. - Each .md file in that Rspress 2.1.0 build opened with a blockquote naming /llms.txt and /llms-full.txt, and sitemap.xml held relative loc values such as /api/commands because siteOrigin was unset. \[observed\] [source](https://rspress.rs/guide/basic/ssg-md), read 5 November 2026. - Under rspress preview the same build answered Accept: text/markdown on / with HTML, served the home page with status 200 for a made-up path, and put the hero title in a span with no H1. \[observed\] [source](https://rspress.rs/guide/basic/ssg), read 5 November 2026. ## Products and plans | Product | What it is | Price | As of | Source | | --- | --- | --- | --- | --- | | Rspress | Static site generator for documentation built on Rsbuild and React. | Free, open source; MIT licence, free; @rspress/core 2.1.0 | 2026-11-05 | source | ## Standards | Standard | Status | What the vendor's pages say | Source | | --- | --- | --- | --- | | llms-txt | supports | Since 2.1.0 SSG-MD is on by default and production builds write llms.txt and llms-full.txt. | source | | markdown-negotiation | partial | Rspress says it has no server to choose Markdown by Accept header; the host needs a rewrite rule, as rspress.rs does on Cloudflare. | source | | markdown-twin | supports | Production builds write a .md file next to each HTML page (getting-started.html and getting-started.md). | source | | initial-html | supports | Rspress enables SSG by default and pre-renders each page into an HTML file with complete content. | source | | real-404 | supports | The SSG output listing includes 404.html, and rspress.rs returned 404 for a made-up path; rspress preview, by contrast, served the home page with 200. | source | | vary-accept | no statement | No statement found in the agent-friendly website post or the 2.1.0 announcement; rspress.rs sent no Vary header with its Markdown responses on 2026-11-05. | none | ## Checks on its own site | Reading | Result | Date | | --- | --- | --- | | Home page request | HTTP 200; H1 in the initial HTML: yes; 708 words; 0 JSON-LD blocks | 2026-11-05 | | Request with Accept: text/markdown | HTTP 200, text/markdown, Vary: accept-encoding | 2026-11-05 | | /llms.txt at the host root | HTTP 200, text/plain, 19 KB, starts with an H1 | 2026-11-05 | | A made-up path | HTTP 404 | 2026-11-05 | | Ora score, cached | 45, grade D | 2026-08-24 | | Cloudflare keyless scan | 20, L0 Not Ready | 2026-11-05 | ## What it does not do - Rspress builds without siteOrigin write sitemap.xml with relative loc paths, which sitemap consumers expect as absolute URLs. ## Related pages on this site - [Frameworks in this section](https://agentreadyhtml.com/vendors/by-type/framework/) - [The Plain Fetch viewer](https://agentreadyhtml.com/viewer/) ## Sources 1. [Rspress: home page](https://rspress.rs/) https://rspress.rs/, read 5 November 2026 2. [Static site generation (SSG) - Rspress](https://rspress.rs/guide/basic/ssg) https://rspress.rs/guide/basic/ssg, read 5 November 2026 3. [Announcing Rspress 2.1.0 - Rspress](https://rspress.rs/blog/rspress-v2-1) https://rspress.rs/blog/rspress-v2-1, read 5 November 2026 4. [How to build an Agent-friendly website - Rspress](https://rspress.rs/blog/agent-friendly-website) https://rspress.rs/blog/agent-friendly-website, read 5 November 2026 5. [@rspress/plugin-llms - Rspress](https://rspress.rs/plugin/official-plugins/llms) https://rspress.rs/plugin/official-plugins/llms, read 5 November 2026 6. [Announcing Rspress 2.0 - Rspress](https://rspress.rs/blog/rspress-v2) https://rspress.rs/blog/rspress-v2, read 5 November 2026 7. [llms.txt (SSG-MD) - Rspress](https://rspress.rs/guide/basic/ssg-md) https://rspress.rs/guide/basic/ssg-md, read 5 November 2026 8. [Rspress LICENSE](https://raw.githubusercontent.com/web-infra-dev/rspress/main/LICENSE) https://raw.githubusercontent.com/web-infra-dev/rspress/main/LICENSE, read 5 November 2026 Last reviewed 5 November 2026 Edition Crawl 2026-11-04 Page updated 2026-11-05 Method How the viewer reads a page, how a file is graded and how a platform is scored: [the method page](https://agentreadyhtml.com/method/).