WordPress Core Web Vitals
Make your WordPress site faster
Themes, plugins, hosting, and images can affect WordPress performance. fast.site adds edge caching and image optimization; your frontend still matters for Core Web Vitals.
7 days free · No credit card required
Where fast.site fits into WordPress
Deliver reusable content from the edge
Public posts, pages and media are candidates for edge delivery. A cache hit can reuse generated HTML instead of asking WordPress and its database to rebuild it. Your theme and plugins remain on your hosting.
Keep personal content personal
Login, wp-admin, previews and member-only content need appropriate exclusions. A plugin can change what a page shows for each visitor, so review cookies and cache rules before caching personalized responses.
Check the whole journey, not just the homepage
Compare a post and a media-heavy page as a logged-out visitor. Then test login, forms and previews. Publish an edit and confirm that the updated content reaches the edge; coordinate purges with any existing cache plugin.
WordPress caching documentationMeasure your site. Not a generic promise.
Record a baseline, then repeat the same pages, device, location and network after activation. Separate cold-cache and warm-cache results. A lab score is a snapshot, not a forecast of rankings or revenue.
Check the response
Compare Time to First Byte and cache HIT/MISS behavior. A faster cached response does not describe checkout, logged-in pages or every request to your origin.
Check what visitors see
Measure the largest visible content and transferred image bytes. Image format, dimensions, quality and frontend loading all affect the result.
Check the real experience
Review responsiveness and layout stability alongside LCP in real-user data when available. TTFB and FCP help diagnosis but are not Core Web Vitals.
A considered setup, from DNS to your first comparison
Prepare your domain
Review existing DNS records, including email and subdomains. Check origin access and choose cache rules that fit your application before changing nameservers.
Verify DNS and HTTPS
Use the nameservers assigned in your dashboard. Wait for propagation and certificate readiness, then confirm that traffic reaches the edge. Timing depends on DNS and your origin.
Test and measure
Check public and private journeys, content updates and cache purges. Compare performance under matching conditions and keep monitoring after launch.
Protection starts after DNS, SSL and domain activation are ready. Setup time does not count towards your 7 days.
Plan your next step
Explore the setup, check the plan limits and ask us about anything specific to your website.
See what edge delivery can do for WordPress.
Keep your hosting. Connect your domain, validate your setup and compare the results on your own website.