Free Page Speed Test and Core Web Vitals Checker

Run a Google Lighthouse audit on any URL for mobile and desktop. Get the performance score, Largest Contentful Paint, Cumulative Layout Shift, Total Blocking Time and Speed Index in seconds.

Key features

Free mobile and desktop Lighthouse audits
Core Web Vitals: LCP, CLS, TBT, FCP, Speed Index
No login, no API key and no daily cap
Side-by-side mobile vs desktop comparison
Powered by the public Google PageSpeed Insights API

Frequently asked questions

Is this page speed test really free?

Yes. There is no signup, no credit card and no usage cap. The test runs against the public Google PageSpeed Insights API.

What is a good Core Web Vitals score?

LCP under 2.5s, CLS under 0.1 and TBT under 200ms. A Lighthouse performance score of 90 or above is considered excellent.

Learn more about Free Page Speed Test and Core Web Vitals Checker

MarkeTingTong — AI Marketing Research Platform for LLM Visibility

One platform to rank better on AI and search engines. All-in-one AI marketing suite: GEO visibility tracking, competitor funnel analysis, email spam checker, AI campaign generator, visual funnel builder, sitemap analyzer, robots.txt generator, and render scope auditing.

Start free · View pricing · Contact us

Our Tools

IntelEngine — Track your brand visibility across ChatGPT, Gemini, Claude, Perplexity, and Google AI Overviews. Multi-LLM consensus reports, sentiment analysis, citation tracking.
AI Competitor Analysis — Reverse-engineer competitor funnels, identify tracking pixels, analytics tags, UTM strategies, and brand offerings.
Visual Funnel Builder — Drag-and-drop marketing funnel simulator with real-time metrics, split testing, and team collaboration.
AI Campaign Generator — Generate full marketing campaigns with copy, channels, and creatives from a single brief.
Email Spam Words Checker — Test email copy for spam triggers and inbox deliverability risk.
Sitemap Analyzer — Validate XML sitemaps, check robots.txt directives, and audit URL coverage.
Robots.txt Generator — Visual builder with granular control over AI, SEO, and social crawlers.
Render Scope — See how Googlebot and AI crawlers see your page before and after JavaScript runs.

Why MarkeTingTong

Modern search is multi-engine. Buyers research on Google, ask ChatGPT, compare on Perplexity, and discover via Gemini. MarkeTingTong gives marketers a single workspace to monitor brand visibility, audit competitors, build funnels, and ship campaigns optimized for both traditional SEO and Generative Engine Optimization (GEO).

Resources

Blog — Guides on GEO, AI search, and marketing strategy.
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