[Emma]

I can’t even keep up anymore.

https://blog.cloudflare.com/introducing-speed-brain

“Today we are very excited to share the latest leap forward in speed: Speed Brain. It relies on the Speculation Rules API to prefetch the content of the user’s likely next navigations. The main goal of Speed Brain is to download a web page to the browser cache before a user navigates to it, allowing pages to load almost instantly when the actual navigation takes place. “

[Pamela]

sounds cool but also, is this AMP reborn or something? I’m scared

[Nancy]

It’s not like AMP, which was a bastardized version of your entire web pages hosted on Google servers, this is like an API that prefetches assets.

[Harold]

We have already enabled Speed Brain by default on all free domains and are seeing a reduction in LCP of 45% on successful prefetches. Pro, Business, and Enterprise domains need to enable Speed Brain manually. If you have not done so already, we strongly recommend also enabling Real User Measurements (RUM) via your dashboard so you can see your new and improved web page performance. As a bonus, enabling RUM for your domain will help us provide improved and customized prefetching and prerendering rules for your website in the near future!

[James]

This post is also available in 简体中文, Deutsch, 日本語, 한국어 and 繁體中文.

lolz

they know.

[Edward]

I thought they already had something for prefetching?

[John]

Speed Brain is causing major problems for WordPress websites btw. For anyone reading this, if you are having problems with ajax requests (saving posts, deleting things, etc) or having multiple or conflicting HTTP requests, try disabling Speed Brain.

It also caused some WooCommerce sites to see the cart contents from other users!

[Emma]

yah sorry but Speed Brain sucks. I disabled it for all my clients now.

[Author]

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