NEW! Stubborn empathy, double HTML, misinterpreting CrUX & other performance problems (and solutions!)
Aug 26, 2026

NEW! Is the "good" LCP score you're chasing wrong? Will AI make performance engineers obsolete? What does "reliability" mean today?
Jul 21, 2026

NEW! Is the "good" LCP score you're chasing wrong? Will AI make performance engineers obsolete? What does "reliability" mean today?
Jul 15, 2026

Welcome to the Performance Matters newsletter!
Jul 15, 2026

NEW! Introducing Core Mobile Vitals + Shopify's surprising conversion data + the best visuals for showing the business impact of site speed
Jun 2, 2026

NEW! Performance maturity, developer vanity, a Costco performance audit & more!
Apr 21, 2026

NEW! The state of performance in China, how slow pages hurt your brand + case studies and best practices to help you stay fast
Mar 24, 2026

NEW! Performance inequality gap, hidden cost of media on the web & the value of "stubborn empathy"
Feb 3, 2026

HOW TO: Measure user happiness, optimize images, escape JS frameworks & find simple solutions
Dec 2, 2025

NEW! The life-changing magic of a faster web
Sep 30, 2025

NEW! Why are most travel sites slow on mobile? Do LoAFs affect conversions? Are you testing performance right?
Aug 4, 2025

NEW! Fastest news site in the US, 3 charts everyone should know & 14 performance tips for 2025
Jun 16, 2025

NEW! CrUX vs RUM, real-world INP fixes, making performance allies & fastest and slowest travel sites
May 5, 2025

NEW! The real cost of downtime vs slowtime, optimization tips & case studies from T-Mobile and Preply
Mar 24, 2025

NEW! Page bloat update, LCP misconceptions & fastest and slowest news sites
Feb 17, 2025

NEW! Get started with Core Web Vitals, performance culture best practices & this month's performance hero
Jan 20, 2025

NEW! Holiday checklist, Core Web Vitals best practices & the fastest site on the web
Nov 4, 2024

NEW! Web bloat, neglected optimizations & lessons from Pinterest and The NY Times
Jul 29, 2024

NEW! Deceptive code, ad blocker domination & regression detection at Pinterest
Jun 26, 2024

NEW! Life beyond INP, the performance inequality gap & a complete guide to performance budgets
Apr 15, 2024

Get ready for INP with these resources (plus inspiring case studies!)
Feb 29, 2024

NEW! Surprising INP insights, getting started with performance & a challenge for 2024
Jan 23, 2024

NEW! Retail performance guide, the fight for the main thread & 5 low-risk fixes to make before the holidays
Nov 19, 2023

NEW! Largest Contentful Paint tips, the psychology of speed & the fastest news sites
Oct 9, 2023

NEW: Page bloat, Core Web Vitals, SEO & jobs for performance pros!
Aug 15, 2023

NEW: Which news site is fastest? Also: Optimizing LCP & inspiring case studies!
Jun 21, 2023

Tame third parties, master performance budgets & learn from Airbnb's new case study
May 23, 2023

Interaction to Next Paint, revisiting the Performance Golden Rule & the latest retail page speed benchmarks
Apr 18, 2023

Measuring your "performance plateau", optimizing third parties & competitive benchmarks for top news sites
Mar 1, 2023

Core Web Vitals tips, fighting UX regression & inspiring case studies from REI and Shopify
Feb 1, 2023

2022 recap: New dashboards, Core Web Vitals enhancements, faster diagnostics & more!
Dec 1, 2022

Fastest retail sites + how to make LCP faster, optimize Long Tasks & speed up async snippets
Nov 1, 2022

Special performance.now() edition: Conference events plus ticket & book giveaways!
Oct 1, 2022

Thinking beyond Largest Contentful Paint, RUM best practices & case studies from Etsy and GOV.UK
Sep 1, 2022

Deliver a faster mobile UX, powerful image optimization tools & why your CDN isn't enough
Aug 1, 2022

Web Vitals updates, sampling RUM & the fastest and slowest US retail sites
Jul 1, 2022

Get started with Web Vitals, optimize JS for faster pages & understand the impact of anti-flicker snippets
Jun 1, 2022

Optimizing Web Vitals, case studies from GOV.UK and ManoMano & lessons learned from the fastest sites
Apr 1, 2022

Ten years of page bloat, easier third-party monitoring & getting started with performance
Mar 1, 2022

RUM Live & Page Views dashboards, Web Performance 101 & metrics cheat sheet
Jan 1, 2022

Happy holidays from your friends at SpeedCurve :)
Dec 1, 2021

Web performance, SEO, Core Web Vitals & holiday readiness
Nov 1, 2021

Support Hub revamp, RUM analytics, free workshops + great case studies
Oct 1, 2021

Core Web Vitals how-tos, RUM deep dive & industry benchmarks update
Sep 1, 2021

Lighthouse 8, Largest Contentful Paint highlights & great case studies
Jul 1, 2021

Vitals dashboard walkthrough, web performance for PMs & more
May 1, 2021

Opinionated guide to performance budgets, Chrome 88 changes & Beyoncé
Feb 1, 2021

Vitals dashboard, SEO news from Google case studies from BBC and Agrofy
Dec 1, 2020

CLS visuals, GitHub Action & great #webperf case studies
Nov 1, 2020

Core Web Vitals tracking, Favorites filters & new flexible plan options
Sep 1, 2020

Lighthouse 6, troubleshooting tips & case studies aplenty!
Jul 1, 2020

Lighthouse 6 update, bookmark & compare, and JavaScript frustration
Jun 1, 2020

Web Vitals, tracking first & third parties, and RUM sampling tips
May 1, 2020

Industry benchmarks, User Happiness scores & remote-work tips
Apr 1, 2020

Here's a virtual holiday gift basket of fantastic webperf resources :)
Dec 1, 2019

User Happiness Score, CI plugin, and an inspiring third-party success story
Oct 1, 2019

Here are all the great things you can now do in SpeedCurve
Jul 1, 2019

What you need to know about JavaScript and your site's performance
May 1, 2019

Everything you need to know about web performance budgets
Oct 1, 2018

Lighthouse scores + the true cost of JavaScript
Aug 1, 2018

Easier performance budget tracking + new JavaScript dashboard
Jun 1, 2018

Web performance pro tips, tracking CPU time, and hunting for unicorn metrics
May 1, 2018

Performance consulting services, faster test agents, and Last Painted Hero
Apr 1, 2018