ModPageSpeed 2.0 now works with ASP.NET Core
A C API and NuGet middleware bring the same optimization pipeline to .NET applications — no nginx required.
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Technical insights on web performance, automatic optimization, and the engineering behind ModPageSpeed 2.0.
Migrating from mod_pagespeed 1.x to ModPageSpeed 2.0
A practical guide for existing mod_pagespeed users: what changed, what to expect, and step-by-step migration instructions.
Read more →Critical CSS extraction without a headless browser
How ModPageSpeed 2.0 extracts above-the-fold CSS using heuristics instead of requiring a headless browser, and why this approach is faster and more reliable.
Read more →The economics of server-side image optimization in 2026
Comparing the total cost of ownership for self-hosted optimization vs. CDN-based image APIs — bandwidth, compute, and operational costs.
Read more →Respecting Save-Data: bandwidth-conscious image serving
How ModPageSpeed 2.0 uses the Save-Data header to serve lighter image variants, with typical 30-50% bandwidth reduction over already-optimized images.
Read more →Benchmarking ModPageSpeed 2.0: real numbers on real sites
Detailed performance benchmarks of ModPageSpeed 2.0 across e-commerce, blog, news, and portfolio sites — page size, load time, and Lighthouse score improvements.
Read more →Viewport-aware image optimization: one decode, 36 variants
A technical deep-dive into how ModPageSpeed 2.0 encodes client capabilities in a 32-bit mask and generates a full matrix of image variants from a single decode pass.
Read more →Why I rebuilt mod_pagespeed from scratch
The story behind ModPageSpeed 2.0 — why a new architecture, what was kept, and what changed.
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