Page Speed Audit

How We Analyse Pages

That's right. This isn't an automated speed optimisation service that gives generic suggestions. Every website is different so automated tools currently aren't specific enough to have actionable advice. We want to know why page is slow and what specifically needs to change to make it fast.

To get that level of insight, we manually analyse your website in Chrome Dev tools page by page to find out why it is slow. We supplement our findings with metrics from our data warehouse and the measurement tools we have in this product.

Time To First Byte

How can we get this below 200ms

• Server location - distance from server to user
• Server configuration - Is server compression used
• Plugins - are they extending server think time
• Caching- do all requests need to hit the server and is CDN caching used
• Application code- how performant are the queries, what is the DOM size
• CDN- can an accelerator like Cloudflare take some of the load
• Edge Workers- are Google Functions, Vercel Functions or Cloudflare workers workers consuming compute time

Page Speed

How can we get above 90 on Mobile and Desktop

• HTML - how big is the DOM, is it bloated
• Images - Compression, rightsizing, lazy loading, webp
• Javascript - remove redundant files, defer loading, code splitting, optimise delivery, server side processing, resource hints, self host, inlining
• CSS - inlining, extracting critical CSS, deferring load

Web Vitals

How can we get into the good threshold set by google

• LCP - improve TTFB, set fetch priority on LCP element
• INP - optimise and minimise JS
• CLS - reserve space for dynamic elements, reduce dynamically injected content