Aaron Peters at @[email protected]

CDN veteran. Owner @cdnplanet, the #1 online resource about content delivery networks. Web performance consultant/engineer since 2010

[Aaron Peters at @[email protected] @aaronpeters]

Cloudflare's Speculation Rules implementation (beta) does not work if CDN can't cache HTML, so not usable for many customers🫤

> Prefetch requests only serve content that is stored in Cloudflare’s Cache.

https://t.co/A8XCQNsots

[Aaron Peters at @[email protected] @aaronpeters]

@AFCAjax de video op https://t.co/Fv3iHFR3Dl werkt niet :(

[Aaron Peters at @[email protected] @aaronpeters]

@CloudflareDev when will NEL Dashboard Analytics become available for non-enterprise customers?

[Aaron Peters at @[email protected] @aaronpeters]

In the <head>

var elm=document.getElementsByTagName("html")[0];
https://t.co/PeoFRwT316.display="none";
document.addEventListener("DOMContentLoaded",function(event) {https://t.co/PeoFRwT316.display="block"; });

Oh my ...😳

[Aaron Peters at @[email protected] @aaronpeters]

@stoyanstefanov @FrontendMasters @chriscoyier Nice article, easy to follow along

[Aaron Peters at @[email protected] @aaronpeters]

The browser's back/forward cache (bfcache) is awesome. For 14% of navigations on a high-traffic site in NL, Chrome could restore the page from bfcache, resulting in a much faster user experience: 85% lower LCP !

[Aaron Peters at @[email protected] @aaronpeters]

@TheRealNooshu Hobbit

[Aaron Peters at @[email protected] @aaronpeters]

Weirdest thing I've seen in an inline script in HTML this year:

var ABTestDataInformation = JSON.parse('[]');

[Aaron Peters at @[email protected] @aaronpeters]

@cloudinary article about img decode attribute is #2 in Google SERP for "image decode async", and it's filled with bad info 🫤 e.g. "decoding is an expensive process, and because JavaScript is single-threaded, decoding happens synchronously on the main thread"

[Aaron Peters at @[email protected] @aaronpeters]

Recipe website, homepage.
60 images, 34.7 MB bytes over the wire 🤯

[Aaron Peters at @[email protected] @aaronpeters]

Sure, build an e-commerce site that has mobile browsers load >200 JS files (>16 MB uncompressed) 😳🤦

[Aaron Peters at @[email protected] @aaronpeters]

Poor UX: https://t.co/fgvWEiwCrD on desktop, scroll down a bit and the search box in the header disappears. Why remove search option for users who scrolled? Ugh

[Aaron Peters at @[email protected] @aaronpeters]

@WebTwitr @tunetheweb Very hard to read, that table. Even if you are experienced in this topic.

[Aaron Peters at @[email protected] @aaronpeters]

@TimVereecke Isn't decoding sync the default? Also, how important is the title attribute for img?

[Aaron Peters at @[email protected] @aaronpeters]

@tunetheweb @davewsmart Different signals .. spot on

[Aaron Peters at @[email protected] @aaronpeters]

@TimVereecke What do you mean by queries? Server to DB or something, or the req from client to server? Of the latter, why not use connection throttling in devtools?

[Aaron Peters at @[email protected] @aaronpeters]

@TimVereecke Oh curl, nice one. Big curl fan

[Aaron Peters at @[email protected] @aaronpeters]

@nucliweb @DebugBear Clicked the link and got this icon my phone just now: