MengXi·6h agoHow to Stop a Long Async DOM Walk: Check for Cancellation After Every awaitShort answer: when a long DOM walk yields to the main thread, the user can stop it while you wait. Check that the work is still wanted…
InUnderlying LogicbyBestte·11h agoThe Fastest Page Load Is the One That Never HappensWhy browser navigation deserves more attention than another round of JavaScript optimization.
Josepollman·21h agoChrome Now Asks Before It Loads HTTP. I Checked the Redirects on My Own Sites.None of my seven sites will trigger the new prompt. Four of them still send a www visitor through two redirects, the chain my own speed…
Sumit M.·21h agoThird-Party Scripts Quietly Eat Your Frontend Performance BudgetI have reviewed enough performance traces to recognize a common pattern in third-party-script performance: the code that hurts the page…
Riazul Karim Ivan·23h agoPart 2: We Still Hit 100% of Our Vercel Free Plan. Here Is What We Found Next.Fix the cache purge, slow down the crawler, put a free CDN in front, and learn that a firewall rule can also break your own background job
InUnderlying LogicbyBestte·1d agoYour Dashboard Is Fast. Your Product Still Feels Slow.What performance metrics miss about everyday software.
Jawad Farooq Naik·1d agoI Tested Three Sites I Built. The Slow Part Wasn’t the Images.On a simulated phone, 70 to 90 percent of the wait for the main content was render delay. Here is the one table that tells you what to fix…
Sahadat Husain·1d agoA 21.4 MB PNG, four ways: 6.5 MB, 1.4 MB and 857 KBA 21.4 MB PNG of a photo is mostly wasted bytes. At 256 colours it was 6.5 MB. As a JPG it was 1.4 MB. As an AVIF it was 857 KB.
Mark W.·1d agoSequential API Calls Quietly Turn Into a Frontend Performance ProblemA page can feel slow even when no single API appears problematic on its own, and that delay shows up in places teams actually care about…
Deepen Patel·1d agoYour App Is Slow. But Where? Following One Request From the Phone to the DatabaseAuto-scaling fixed our peak-hour timeouts. It didn’t fix slow requests. Here’s how we find where the time actually goes, with the commands…
