Andy Davies

http2-prioritization-issues. Tracks issues / notes for HTTP/2 prioritization across browsers, CDNs and servers

waterfall. Bookmarklet that produces Page Load Waterfalls using the Resource Timing API

perf-timeline-to-devtools-profile. Creates custom DevTools Performance Panel populated with entries from the Performance Timeline

webpagetest-cookie-consent-scripts. Scripts that can be used with WebPageTest (or other testing tools) to bypass Cookie Consents and enable full page load

tag-timing-snippets. Examples of how to measure events – particularly those from third-party tags – in web pages

ios-har-builder. Creates HAR files from Safari on iOS Simulator

keynote-world-map. World Map in Keynote format with countries as individual editable, and colourable shapes

node-iosdriver. Driver for communications with Safari running on iOS Simulator

Client-Hints. Chrome plugin to add Client-Hints HTTP header

kensho. Attempt at extending Chrome to produce resource dependency trees for HTML pages

responsive-sites. A big list of responsive sites to run test cases against

3rd-party-cpu-abuser. From a chrome dev tools JS profiler file, will tell you quickly who on your pages abuses user's CPU

SSL-Labs-Bookmarklet. Bookmarklet to test a site using Qualys SSL Test

bplist-dissector. Dissector for Apple bplist

gtm-watcher. Fetches GTM containers and calls the SpeedCurve API when they're updated

test-rel-prefetch. HTML

test-rel-preload. Tests to explore positioning of rel="preload" links

wpt-diff. diffs for WebPageTest results

rt-tests. Resource Timing Tests

analytics. Lightweight analytics abstraction layer for tracking page views, custom events, & identifying visitors

Book-of-Speed. JavaScript

wpt-installer. Scripts to help automate the installation and configuration of WebPageTest

adept-jpg-compressor. A Bash script to automate adaptive JPEG compression using common CLI tools

sse-chart. Experiment - Drive a rickshaw.js chart using Server Sent Events

long-animation-frames. Long Animation Frame API specification repository

almanac.httparchive.org. HTTP Archive's annual "State of the Web" report made by the web community

awesome-wpo. A curated list of Web Performance Optimization. Everyone can contribute here!

perf-tooling. List of performance analysis, monitoring and optimization tools

awesome-frida. Awesome Frida - A curated list of Frida resources http://www.frida.re/ (https://github.com/frida/frida)

vue. Vue is a monitor for your media queries. Just include it on any page and Vue will check all your CSS for media queries and log when they are enabled or disabled.

test-rel-preconnect. Test pages for rel=preconnect

client-vs-server-templating. WHICH IS BETTER?! I DONT KNOW!

favicon-cheat-sheet. Obsessive cheat sheet to favicon sizes/types. Please contribute! (Note: this may be in flux as I learn new things about favicon best practices.)

svgomg. Web GUI for SVGO

examples. HTML

harviewer. HAR Viewer is a web application that allows visualizing HTTP Archive logs (HARs)

browser-perf-runner. Run browser-perf on websites

jsperf.com. jsPerf.com source code

bigrquery. An interface to Google's bigquery from R.

lesscss.org. http://lesscss.org

chrome-har-capturer. Capture HAR files from a remote Chrome instance

HARoscope. Yet another HAR viewer but will use D3.js and so produce SVG charts

third-party-web. Data on third party entities and their impact on the web.

eurorack-bus-board-horizontal.