--- title: "Eleventy: vendor profile: Agent Ready HTML" description: "Eleventy, a framework: 1 of 6 standards stated as supported, 12 sourced facts, dated plans and what it does not do. Read 2026-11-05." canonical: https://agentreadyhtml.com/vendors/eleventy/ site: "Agent Ready HTML" last_updated: 2026-11-05 section: "Vendors" --- # Eleventy: vendor profile: Agent Ready HTML > Eleventy, a framework: 1 of 6 standards stated as supported, 12 sourced facts, dated plans and what it does not do. Read 2026-11-05. Source: https://agentreadyhtml.com/vendors/eleventy/ Site: Agent Ready HTML Last reviewed: 2026-11-05 # Eleventy (11ty): vendor profile In short Eleventy is being renamed Build Awesome, announced on 2026-03-03, and joined Font Awesome on 2024-09-12 with the same maintainer. Version 3.1.8 was published on 2026-11-03. Sitemaps and llms.txt are templates a site writes, and server rendering is gone since the Edge and Serverless plugins were retired. www.11ty.dev has no llms.txt: it answered 404 on 2026-11-05. ## At a glance **standards.txt** eleventy ```text llms-txt = no statement markdown-negotiation = no statement markdown-twin = no statement initial-html = supports real-404 = partial vary-accept = no statement ``` 1 supports, 1 partial or announced, 4 no statement. **Eleventy** Framework Eleventy (11ty), now being renamed Build Awesome, is a JavaScript static site generator that turns Markdown, Nunjucks, Liquid and other templates into plain HTML files, with a 404.html convention and no server runtime. Type [Framework](https://agentreadyhtml.com/vendors/by-type/framework/) Operator, as the facts below state it Font Awesome Home page [www.11ty.dev](https://www.11ty.dev/), answered HTTP 200 on 2026-11-05 Last read 5 November 2026 ## What it does for this layer - The Eleventy getting-started guide describes templates in Markdown, HTML, Liquid, Nunjucks and other formats that Eleventy transforms into pages at build time. \[primary source\] [source](https://www.11ty.dev/docs/), read 5 November 2026. - Eleventy's quickstart sets a project up by hand with npm init, \`npm install @11ty/eleventy\` and \`npx @11ty/eleventy\`, and names v3.1.8 as the newest version. \[primary source\] [source](https://www.11ty.dev/docs/), read 5 November 2026. - Eleventy v3.1.8 was published on GitHub on 3 November 2026; the patch reverts the Nunjucks dependency to nunjucks@3.2.4 to fix regressions with setLibrary. \[primary source, 2026-11-03\] [source](https://github.com/11ty/buildawesome/releases/tag/v3.1.8), read 5 November 2026. - On 3 March 2026 the Eleventy blog announced the project is being renamed Build Awesome, with Eleventy v4 to ship as Build Awesome v4 and existing plugins and build commands kept compatible. \[primary source, 2026-03-03\] [source](https://www.11ty.dev/blog/build-awesome/), read 5 November 2026. - The Build Awesome post says a paid Build Awesome Pro tier is planned but will not be required to use the open source generator. \[primary source\] [source](https://www.11ty.dev/blog/build-awesome/), read 5 November 2026. - Eleventy joined Font Awesome, announced on the 11ty blog on 12 September 2024, with the open source project continuing under the same maintainer. \[primary source, 2024-09-12\] [source](https://www.11ty.dev/blog/eleventy-font-awesome/), read 5 November 2026. - Eleventy's 404 quick tip writes a template with permalink: 404.html, which Eleventy outputs as a static 404.html file. \[primary source\] [source](https://www.11ty.dev/docs/quicktips/not-found/), read 5 November 2026. - The Eleventy Dev Server, added in v2.0.0 and started with --serve, applies the 404.html convention during local development. \[primary source\] [source](https://www.11ty.dev/docs/quicktips/not-found/), read 5 November 2026. - Eleventy's official plugin list (all under the @11ty npm scope) covers Image, Fetch, RSS, i18n, Navigation, Render and others, with no sitemap or llms.txt plugin listed. \[primary source\] [source](https://www.11ty.dev/docs/plugins/), read 5 November 2026. - Eleventy's Edge and Serverless plugins, which ran templates in edge or serverless functions for server-side rendering, are listed as retired. \[primary source\] [source](https://www.11ty.dev/docs/plugins/), read 5 November 2026. - On 2026-11-05 www.11ty.dev returned 404 for /llms.txt, answered Accept: text/markdown with text/html, and sent a made-up path through a 308 trailing-slash redirect before a 404. \[observed, 2026-11-05\] [source](https://www.11ty.dev/), read 5 November 2026. - The Eleventy source repository now lives at github.com/11ty/buildawesome under the MIT license, described as a simpler site generator that turns a directory of templates into HTML. \[primary source\] [source](https://github.com/11ty/buildawesome), read 5 November 2026. ## Products and plans | Product | What it is | Price | As of | Source | | --- | --- | --- | --- | --- | | Eleventy (Build Awesome) | Open source JavaScript static site generator that turns templates in many languages into HTML files. | Free, open source; MIT license; a paid Build Awesome Pro tier is planned and optional | 2026-11-05 | source | ## Standards | Standard | Status | What the vendor's pages say | Source | | --- | --- | --- | --- | | llms-txt | no statement | No statement found in the Eleventy docs, quick tips index or official plugin list; www.11ty.dev and build.awesome.me both returned 404 for /llms.txt. | none | | markdown-negotiation | no statement | No statement found in the Eleventy getting-started guide or 404 quick tip; Eleventy writes static files to _site and the host serves them. | none | | markdown-twin | no statement | No statement found in the docs or official plugin list about writing .md copies of pages. | none | | initial-html | supports | The getting-started guide says Eleventy transforms each template into a page at build time, so output is complete HTML. | source | | real-404 | partial | Eleventy writes 404.html; listed hosts serve it automatically and .htaccess hosts need ErrorDocument, per the 404 quick tip. | source | | vary-accept | no statement | No statement found in the Eleventy getting-started guide, quick tips index or official plugin list about Vary. | none | ## Checks on its own site | Reading | Result | Date | | --- | --- | --- | | Home page request | HTTP 200; H1 in the initial HTML: yes; 1,440 words; 0 JSON-LD blocks | 2026-11-05 | | Request with Accept: text/markdown | HTTP 200, text/html, no Vary header | 2026-11-05 | | /llms.txt at the host root | HTTP 404, text/html, 103 KB | 2026-11-05 | | A made-up path | HTTP 308, redirect to /agent-ready-check-2rryfckk/, then HTTP 404 | 2026-11-05 | | Ora score, cached | 38, grade D | 2026-08-25 | | Cloudflare keyless scan | 20, L1 Basic Web Presence | 2026-11-05 | ## What it does not do - The Eleventy 404.html file gets a 404 status from the host, not from Eleventy; on Apache it needs an ErrorDocument line. [source](https://www.11ty.dev/docs/quicktips/not-found/), read 5 November 2026. ## 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. [Eleventy home page](https://www.11ty.dev/) https://www.11ty.dev/, read 5 November 2026 2. [Getting Started | Eleventy](https://www.11ty.dev/docs/) https://www.11ty.dev/docs/, read 5 November 2026 3. [Release Eleventy v3.1.8 · 11ty/buildawesome · GitHub](https://github.com/11ty/buildawesome/releases/tag/v3.1.8) https://github.com/11ty/buildawesome/releases/tag/v3.1.8, read 5 November 2026 4. [Eleventy is now Build Awesome | Eleventy](https://www.11ty.dev/blog/build-awesome/) https://www.11ty.dev/blog/build-awesome/, read 5 November 2026 5. [11ty is joining Font Awesome | Eleventy](https://www.11ty.dev/blog/eleventy-font-awesome/) https://www.11ty.dev/blog/eleventy-font-awesome/, read 5 November 2026 6. [Quick Tip: Adding a 404 Not Found Page to your Static Site | Eleventy](https://www.11ty.dev/docs/quicktips/not-found/) https://www.11ty.dev/docs/quicktips/not-found/, read 5 November 2026 7. [Plugins | Eleventy](https://www.11ty.dev/docs/plugins/) https://www.11ty.dev/docs/plugins/, read 5 November 2026 8. [GitHub - 11ty/buildawesome: A simpler site generator. Transforms a directory of templates (of varying types) into HTML. · GitHub](https://github.com/11ty/buildawesome) https://github.com/11ty/buildawesome, 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/).