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Filter +rewrite_images,-inline_images · Filter docs

A module filter.

Both frames render identically — that's the goal. The win is in the bytes and requests below, not the look. They're served live by the mod_pagespeed module on demo-httpd-1.1.modpagespeed.com; the optimized frame applies only this filter. Right after a cache purge it may briefly match the original while the worker rewrites it — reload to see the result.

Measured impact

Total bytes

86.8 KB 72.0 KB

−17%

What changed in the source

The page's HTML, before and after this filter. Red lines are removed, green lines are added.

                
                  
                      … 4 unchanged lines …
                    

                           (see corp deploy/CLAUDE.md), PageSpeed rewrites the reference to a same-
                    

                           origin, recompressed, long-cacheable URL served from this domain.
                    

                        -->
                    

                      - <img src="https://www.gstatic.com/webp/gallery/2.jpg" width="550" height="404"/>
                    

                      - 
                    

                      + <head/><img src="https://demo-httpd-1.1.modpagespeed.com/gstatic/x2.jpg.pagespeed.ic.c1VMOX81-x.avif" width="550" height="404"/>
                    

                      + <script type="speculationrules">{"prefetch":[{"where":{"href_matches":"/*"},"eagerness":"moderate"}]}</script>

Run this on your own site

This is one of 49 filters the mod_pagespeed module applies in place — self-hosted on Apache, nginx, and IIS. Install and run it: it optimizes right away and adds an the optimized response headers shown above. Open source under the Apache License 2.0 — free in development and in production.

Download & run

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