Free Website Speed & Core Web Vitals Checker
Score your website speed, mobile experience and Core Web Vitals readiness using LCP, INP, CLS, page weight, images and JavaScript issues.
Speed problems can hurt traffic, leads and user experience
A page can have great content and still lose visitors if it loads slowly, shifts while loading or feels unresponsive on mobile.
For SEO
Technical performance supports crawlability, usability and the experience people have after clicking from search.
For conversions
Fast, stable pages reduce friction before users enquire, call, book or buy.
For mobile users
Mobile users are often less patient, so speed and layout stability matter even more.
Website speed checklist
- Compress and resize large hero images before upload.
- Use modern image formats where possible.
- Reduce unused JavaScript, plugins and third-party scripts.
- Improve hosting, caching and CDN delivery for important pages.
- Make above-the-fold content load quickly on mobile.
- Reserve space for images, banners and embeds to reduce layout shifts.
- Test important lead-generation pages before scaling traffic.
Your speed action plan
Website Speed & Core Web Vitals FAQs
What are Core Web Vitals?
Core Web Vitals are user experience metrics that look at loading speed, responsiveness and layout stability.
Where do I find my LCP, INP and CLS?
You can use tools such as PageSpeed Insights, Lighthouse or other website performance audits to find these metrics, then enter them here.
Does this checker fetch live PageSpeed data?
No. This browser-based checker scores the metrics you enter and creates a practical action plan. It does not require an API key or external connection.
Can you improve website speed for me?
Yes. The Marketing Specialists can help with website optimisation, SEO, technical fixes, landing pages and conversion improvements.
Need a faster, cleaner website?
Use the checker to prioritise technical fixes, then request a free strategy if you want help improving speed, SEO and conversion performance.