performance.now() 2024
2024-11-14..2024-11-15
Amsterdam, Netherlands
[performance.now() 2018, performance.now() 2019, performance.now() 2022, performance.now() 2023, performance.now() 2024, performance.now() 2025]
who it's for
frontend engineers, web performance engineers, engineering managers, platform engineers, accessibility engineers, observability engineers
topics
Core Web Vitals adoption gaps; site speed playbook; DevTools Performance Panel features; third-party script mitigation; font subsetting and WF2 conversion; accessibility-driven performance audits; bundle analysis and unpacking; PWA patience and Network Information API; real user monitoring with web-vitals; main-thread instrumentation and container timing
| title | author | length |
|---|---|---|
| The Web Performance Landscape in 2024 | Tammy Everts | 25m |
Sets current numbers and tools against real failures: global device split and browser reach (Chrome ~66% Safari ~18%), median page growth and resource hotspots… | ||
| Site-Speed That Sticks | Harry Roberts | 57m |
Practical playbook and hard numbers: a five‑step performance framework from project definition through deployment, with concrete tools and tests you can run… | ||
| Accessible is Performant | Eric Bailey | 51m |
An accessibility audit uses VoiceOver, Firefox’s accessibility inspector and Lighthouse and finds the accessibility tree choking on Google's Material radio… | ||
| Performance Mistakes | Paul Calvano | 48m |
HTTP Archive queries reveal 17 actionable mistakes with concrete impact: lazy‑loading a viewport LCP image (about 731,000 sites failing the audit) and mixed… | ||
| Thinking Beyond Core Web Vitals | Anna Migas | 46m |
After a year working on web apps for Nigeria and Kenya the claim is that Core Web Vitals target a privileged fast‑connection user and miss people on slow… | ||
| Third Party Woes | Jason Grigsby | 53m |
Audit shows one checkout widget injects ~800 KB of JS and removing it cuts total blocking time by ~2.4s, a chatbot removal improves LCP by ~2.24s, and moving… | ||
| Reckoning: Frontend's Lost Decade | Alex Russell | 55m |
Argues that the web is web losing on mobile by specific mechanisms: app‑store distribution and in‑app browsers that steal links, AMP and search ranking… | ||
| In the Blink of an Eye | Tim Kadlec | 21m |
Claims that tiny delays matter: 100 milliseconds separates “instant” from lost revenue (Walmart ~1% uplift, Zalando ~7%), humans process images in ~13… | ||
| DevTools Deep Dive | Jack Franklin | 42m |
Performance Panel now surfaces live local metrics and can fetch field data while letting local origins map to production origins so traces compare lab and real… | ||
| Font Performance Strategies | Mandy Michael | 50m |
Practical, measurable steps: self‑host fonts where possible or accept Google Fonts for convenience, convert to WF2 and consider variable fonts, then slice and… | ||
| INP Case Studies | Erwin Hofman, Karlijn Löwik | 53m |
Case studies show concrete wins: real user monitoring built on the web-vitals library and LOF-style traces identify scripts blocking the main thread, leading… | ||
| Bloomberg Becomes Browser | Jason Williams, Paul Williams | 53m |
Bloomberg embeds Chromium + V8 as the Terminal UI core, replaces a million‑line C++ UI with HTML/JS, and runs across ~350,000 installs handling peaks of ~10… | ||
| Unpacking Bundling | Daniel Roe | 51m |
Eight concrete bundler moves: extract and inline only the CSS for components rendered on a page, move async data into separate dynamic-import chunks, rebundle… | ||
| Aiming for the Stars | Annie Sullivan | 44m |
Claims that Chrome and ecosystem work save 30,000 years of end user time last year and that Core Web Vitals becomes a usable North Star. Demonstrations use… | ||
| nothing matches | ||