A professionally designed website can still be slow if the underlying code isn't optimised. Heavy JavaScript, render-blocking elements, and poorly sequenced loading all hurt Core Web Vitals — Google's measure of page performance and a direct ranking factor. By building exclusively on CoreDNA, we work from a standardised, optimised codebase that eliminates most performance issues before they start.
A professional looking website can still be slow if images, video, and code aren't optimised. Performance should be planned before design begins — setting load speed targets and ensuring design choices support them. We use WebP for images and WebM for video, significantly reducing file sizes, and build on CoreDNA's standardised codebase — eliminating most performance issues before they ever start.
Website code optimisation ensures pages load fast and score well on Google's Core Web Vitals. It involves minimising JavaScript, sequencing page elements to load in the right order, compressing images using WebP, and serving video in WebM format. Building on CoreDNA's standardised codebase eliminates many of these issues from the start — meaning less fixing after launch and better rankings from day one.
Google PageSpeed Insights and Chrome's Lighthouse tool score your site 0-100 and identify specific performance issues — both free and accessible immediately. GTmetrix and WebPageTest provide additional diagnostic depth. We benchmark your site with these tools before and after optimisation to quantify exactly what improved. No guesswork, no assumptions — just measurable performance gains you can see and verify yourself.
Code optimisation alone won't rank a page — authority, content quality, and keyword competitiveness all play a role. That said, fixing a seriously slow site can move the needle quickly. Meaningful SEO improvements typically take a minimum of three months, sometimes longer depending on your starting point and market. The good news — every improvement compounds, and results accelerate over time.