Step-by-Step Guides to Building and Growing Your Website
Website Performance covers the technical changes that affect how fast a site loads and how efficiently it delivers content — caching, image optimisation, lazy loading, GZIP compression, database cleanup, CDN setup, browser caching, converting images to WebP, improving Core Web Vitals (including layout shift), HTTP security headers, and using tools like Google PageSpeed Insights to find the actual bottleneck rather than guessing at one.
Page speed affects both search rankings and visitor behaviour in ways that are easy to measure and hard to ignore. Visitors abandon slow pages before they’ve read anything, and speed is something Google weighs on both desktop and mobile. The performance issues that affect most sites aren’t obscure — they’re the predictable result of skipping a handful of well-understood configuration steps.
The articles here focus on changes that make a genuine difference on a typical site, without needing server administration skills or a developer working at the infrastructure level.
Image SEO in WordPress means getting filenames, alt text, compression, file formats, responsive sizing, and lazy loading right. This guide covers every practical step, including the srcset mechanics behind responsive images and why you should never lazy-load your featured image.
Learn how to find out which plugins are actually slowing your site down and what to do about each one — from profiling with Query Monitor to safely removing what you no longer need.
The Heartbeat API polls admin-ajax.php every 15 seconds in the post editor and every 60 seconds elsewhere in wp-admin. Here’s how to tune those intervals down without breaking autosave or post locking.
Learn what causes Cumulative Layout Shift on WordPress sites and how to fix it — reserving space for images, ads, embeds, and fonts — with the exact 0.1/0.25 Core Web Vitals thresholds and how the CLS score is actually calculated.
Object caching stores database query results in memory so WordPress can skip repeat queries — including WordPress core’s own built-in Site Health check for this, WooCommerce’s new default-on product caching, and a real comparison against the paid Object Cache Pro alternative.
HTTP/2 lets browsers load your WordPress site’s files in parallel over a single connection instead of queuing them one by one, and most hosts already turn it on the moment SSL goes live. Here’s how to confirm it, and where HTTP/3 fits in for 2026.
TTFB (Time to First Byte) is the server response time metric in Google PageSpeed Insights and Core Web Vitals. Learn how to reduce TTFB in WordPress using caching, database optimisation, CDN, and PHP upgrades.
A caching plugin serves a saved copy of each page instead of rebuilding it from scratch — which one to pick, backed by real install numbers, and how to tell page caching apart from the other kinds.
“Eliminate render-blocking resources” has a straightforward fix — defer JavaScript, inline critical CSS — and a widely-used plugin (800,000+ installs) that handles both without touching theme code.
Before installing a minification plugin, check whether your theme already ships minified assets — then, if it doesn’t, how to add it safely with Autoptimize or LiteSpeed Cache without breaking scripts.