Using Puppeteer and Squoosh to fix the web performance of embedded tweets
Twitter embeds are bad for web performance. They cause so many extra requests, and a huge amount of data added to a page, so how can we fix it?
All my blog posts: Page 4
The web performance of internal systems is important, so optimise them too
It's important to remember staff members are users too, so optimise your internal tools for performance for more productive and less stressed workforce! Here are some tools and resources to help you out.
The importance of `@font-face` source order when used with preload
A small change in the ordering of your font sources in the `@font-face` rule can have a big impact on data and web performance, especially when used in conjunction with the `preload` resource hint.
How to run a WebPageTest test
Let's examine the WebPageTest homepage and investigate what all the settings do, including examples of what you can use them for.
Fixing a legacy HTTP/1.1 server configuration with Cloudflare Workers a CDN
It's amazing what a difference a single little response header can have on web performance. Lets 'fix' it at the edge with a <s>Cloudflare Worker</s> CDN.
Using jq with the WebPageTest API
WebPageTest exposes all its data via an easy to access API, but the data listed can be overwhelming. Using a tool like jq can help. Here's how you use it.
Why you should be testing your 404 pages web performance
Your may not think it, but your 404 page is an important part of your potential user journey. You should test its web performance as it can have a big impact on your users experience.
A 'Vary' unusual waterfall
Weird things can happen to waterfalls when you don't set the correct response headers.
Measuring and examining TLS 1.3, IPv4, and IPv6 performance
TLS 1.3 is the new kid on the cryptographic protocols block. It offers better security and better initial connection web performance. And IPv6 is a 'new' internet protocol. Lets examine some shiny new things!
Bringing HTTP/2 to GOV.UK - Resources
A simple blog post bringing all the resources I used and created in the GOV.UK HTTP/2 work.