How Good Is Your Website?
Get an instant website health score across performance, SEO, accessibility, visibility and traffic signals.
Not another boring speed checker
Think Rotten Tomatoes for websites. Real scores. Real grades. Real insights — explained like a human would.
Instant Grade
Every site gets a letter grade from A+ to F based on real, industry-standard web performance data.
Plain English
We translate technical metrics into insights anyone can understand.
Mobile vs Desktop
Side-by-side comparisons across performance, SEO, accessibility & more.
Core Web Vitals
LCP, CLS, INP, FCP, Speed Index, TBT — measured the way Google does.
Shareable Cards
Beautiful share cards perfect for X, LinkedIn or your portfolio.
Permanent Reports
Every audit becomes an indexable page anyone can revisit later.
Popular Guides
Free SEO & performance guides to help you ship faster sites.
Website Speed Test
Run a free website speed test on any URL. Get mobile and desktop Lighthouse scores, Core Web Vitals, and a plain-English breakdown in 30 seconds.
Read moreCore Web Vitals Checker
Check your Core Web Vitals (LCP, CLS, INP) on any URL for free. Get instant Google Lighthouse results with traffic-light thresholds and clear fix recommendations.
Read moreHow to Improve Website Speed
Step-by-step guide to making your website faster. Twelve high-impact fixes ranked by effort vs reward, with real numbers and code examples — no fluff.
Read moreSEO Score Checker
Check your website's SEO score for free using Google's Lighthouse engine. Get instant feedback on titles, meta descriptions, structured data, mobile-friendliness and more.
Read moreThe world's top websites, ranked.
A curated index of the most influential websites on earth — graded across performance, SEO, accessibility, AI visibility and traffic.
Latest Articles
Fresh from the RateMySite blog.
How to Read a Lighthouse Report
Lighthouse reports are dense. Here's how to read every section, prioritize fixes, and avoid wasting time on low-impact items.
Website Audit Checklist for Small Businesses
If you run a small business website, you don't need an expensive agency to know if it's healthy. Use this checklist to audit it yourself in an hour.
How to Make Your Website Load Faster
The complete playbook for faster page loads. Ordered from highest impact to lowest, so you can stop at any point and still have a meaningfully faster site.
Find out your score
Rate any website in 30 seconds. Share the result. Watch them improve.