modpagespeed.com valid

Automatically discovered from public files. Ownership management is optional. Inclusion does not imply endorsement or publisher participation.

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Claim my listing on Agent Web Map for modpagespeed.com:
1. POST https://agentwebmap.com/v1/sites/modpagespeed.com/claims and keep claim_id and claim_secret private.
2. Publish the proof: add the line "AgentWebMap ownership: <token>" (token from step 1) to https://modpagespeed.com/llms.txt, or use the DNS, meta-tag or well-known method the response describes.
3. POST https://agentwebmap.com/v1/sites/modpagespeed.com/verify with {"claim_id": "...", "claim_secret": "..."}.
4. Save the api_key from the answer; it manages the listing (PATCH https://agentwebmap.com/v1/sites/modpagespeed.com).
MCP equivalent: tools begin_ownership_claim, then verify_domain, at https://agentwebmap.com/mcp. Docs: https://agentwebmap.com/docs#verify

Corrections or removal requests: contact the directory. Ownership management is optional.

mod_pagespeed 2.1

Self-hosted web performance optimization for Apache and nginx. Open source under the Apache License 2.0. mod_pagespeed 2.1 converges the mod_pagespeed lineage and the engine from the 2.0 re-architecture into one product: a native web-server module with a separate optimizer worker.

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-20T23:22:36.667Z. Cached copy · Source on modpagespeed.com

# mod_pagespeed 2.1

> Self-hosted web performance optimization for Apache and nginx. Open source under the Apache License 2.0. mod_pagespeed 2.1 converges the mod_pagespeed lineage and the engine from the 2.0 re-architecture into one product: a native web-server module with a separate optimizer worker.

We-Amp B.V. develops mod_pagespeed 2.1, the converged continuation of the open-source mod_pagespeed project, originally developed at Google. It automatically optimizes web content (images, CSS, JavaScript, HTML): a native in-process module for Apache and nginx handles serving, and a separate optimizer worker does the heavy optimization work outside the web server. Drop-in compatible with the classic module: the same configuration directives and filters carry over, and no application code changes are required. mod_pagespeed 2.1 converges the 1.15 module line (renumbered from 1.1, the forward-semver successor to the last upstream release, 1.14.36.1) with the ModPageSpeed 2.0 engine, which continues as the optimizer worker; both predecessor lines upgrade to it in place.

Heritage: mod_pagespeed, the open-source optimization core this product continues, powers 231,341 live sites (per BuiltWith, May 2026; 1.9 million+ across its history). These are not We-Amp customers; they are the proof the optimization core works at scale.

What it does:

- Image optimization in the optimizer worker: WebP, AVIF and SVG transcoding, viewport-aware resizing, learned per-format quality prediction with SSIMULACRA2 verification, content-aware classification and denoising, up to 37 variants per image (36 raster plus one SVG)
- CSS optimization: minification, heuristic critical-CSS extraction with an optional headless-browser pipeline, non-blocking stylesheet loading
- JavaScript optimization: safe minification and browser-analysis-driven script deferral, no AST transforms
- HTML optimization: critical CSS injection, 103 Early Hints, lazy-loading attributes, image dimensions, LCP image preload, font preloading, preconnect hints
- Variant-aware caching keyed on a 32-bit capability mask (image format, viewport, pixel density, Save-Data, transfer encoding), served zero-copy from the shared Cyclone cache
- The module's classic filter set: CSS and JavaScript combining, image spriting, in-place resource optimization, domain mapping, and the built-in admin console

mod_pagespeed 2.1 is open source under the Apache License 2.0: free to install and run, in development and in production, with free standard signed packages. What We-Amp sells is support, in three tiers; Priority and Enterprise add a private package repository (being set up):

- Standard support — a direct channel to the engineers who build the product, for up to 5 production servers; €490 a year; First response within 2 business days
- Priority support — everything in Standard plus a private package repository (being set up), for up to 25 production servers; €1,900 a year; First response next business day; severity 1
…

Help agents understand your site

Optionally manage your description, publish terms for agents, review file health, measured discovery requests, publisher clicks and score history. Confirm domain control in your browser using a fresh token in your llms.txt, DNS, meta tag or well-known file. No backlink is required.

Manage this listing → · Agent and API instructions

Machine-readable: GET /v1/resolve?q=modpagespeed.com · GET /v1/domain/modpagespeed.com · this page as Accept: application/json or text/markdown · MCP lookup_domain