sitespeedio/sitespeed.io v41.0.0

on GitHub

Highlights

A small but breaking release: Node.js 22 is now the minimum, and --help has been redesigned around topic-filtered views instead of dumping every option in one screen.

Breaking

• Node.js 22+ is now required (was Node.js 20+) #4732.
• sitespeed.io --help no longer prints every option from all 26 option groups by default — it now shows a short curated list of common options plus the available topic names. Use sitespeed.io --help <topic> to drill into one topic, or sitespeed.io --help-all to reproduce the historical full dump (kept unchanged for scripts, and used to generate the published docs/config reference) #4730.

Changed

• coach-core bumped to 9.1.0, which pulls in pagexray 5.0.0 #4731.

Fixed

pagexray 5.0.0 (transitive via coach-core 9.1.0) brings several reporting fixes that show up directly in sitespeed.io output:

• HTTP/3 / HTTP/3.0 connections are now classified as h3 instead of falling through to h1, so the HTTP-version breakdown is correct on HTTP/3 traffic.
• Cache-Control is parsed case-insensitively (RFC 7234), so Max-Age=42 is read as 42 instead of 0 and No-Cache / No-Store are honoured — caching advice and expireStats no longer over-report problems on origins that capitalise the directive.
• missingCompression no longer flags already-gzipped assets (the encoding check was comparing a flattened header array against a string), accepts compound encodings like br, gzip, and recognises zstd. xml is now also considered for compression reporting.
• The Domain= cookie attribute is matched case-insensitively (RFC 6265), so third-party cookies set with lowercase domain= are detected.
• getMainDomain recognises common two-label public suffixes (.co.jp, .com.br, .com.au, …), so the auto-generated first-party regex stops misclassifying same-site requests on non-.co.uk country domains.
• defaultContentTypes now includes favicon, so every page has a consistent shape in the content-type breakdown.
• getDocumentRequests returns an empty array for pages with no matching entries instead of throwing.