Website SEO & Speed Checker
Audit any URL for SEO health, meta tag accuracy, heading structure, image alt tags, HTTPS status & Google Lighthouse speed — all in one free report.
Why Use Our Free Website SEO & Speed Checker?
Search engine optimization (SEO) and page load speed directly influence your organic traffic and Google rankings. Our free website audit tool tests page performance for both Mobile and Desktop devices, meta tags, title lengths, mobile responsiveness, heading structure, and Google Lighthouse metrics in seconds.
Mobile & Desktop PageSpeed
Integrates directly with Google Lighthouse to measure First Contentful Paint (FCP), Largest Contentful Paint (LCP), and Cumulative Layout Shift (CLS) separately for Mobile and Desktop.
Meta & SERP Preview Audit
Checks title pixel widths, meta description thresholds, canonical tags, and Open Graph social tags to prevent SERP truncation.
Technical & On-Page Checks
Audits image alt attributes, heading hierarchies (H1/H2), HTTPS status, and Schema.org JSON-LD structured data.
How to Use Website SEO & Speed Checker
Enter any website URL into the audit box and click 'Run Free SEO Audit'. The tool fetches the page HTML and runs an automated check against Google PageSpeed Insights API in parallel.
Review your results across three core areas: PageSpeed (mobile & desktop Lighthouse metrics), Meta & SERP preview accuracy, and Technical/On-page checks.
Page speed and SEO health aren't separate conversations anymore. Core Web Vitals are a confirmed ranking factor, and a title tag that gets pixel-truncated in the SERP loses clicks even when it ranks well. This checker treats both as one audit.
Prioritize your fixes using the itemized action list, starting with any red-flagged critical issues.
Why It Matters
- ✓Core Web Vitals (LCP, FCP, CLS) directly influence ranking and are measured separately for mobile vs. desktop.
- ✓Pixel width, not character count, determines whether a title shows fully in search results.
- ✓Missing alt tags and broken heading hierarchy are two of the most common issues found even on well-ranked sites.
- ✓HTTPS and canonical tag errors can quietly split ranking signals across duplicate URLs.
Key Features
- •Google Lighthouse integration for real performance data
- •Pixel-accurate title & meta description preview
- •Heading hierarchy audit (H1 through H6)
- •Image alt tag & optimization check
- •HTTPS and Schema.org detection — all from a single URL, no sign-up
Frequently Asked Questions
Everything you need to know about Website SEO & Speed Checker
What's the difference between this and Google PageSpeed Insights?
This checker layers PageSpeed's Lighthouse data together with meta tag accuracy, heading structure, and on-page technical checks, producing a full SEO picture rather than just a performance score, from a single audit.
Why does my title tag look fine in the CMS but get cut off in Google's results?
Google truncates titles by pixel width, not character count. Wide letters like W or M use more pixels than narrow ones like i or l, so two titles with identical character counts can display very differently.
How often should a site audit be run?
Monthly is reasonable for most sites, but re-audit immediately after a redesign, CMS migration, or major content update — these are when technical issues most often get introduced.
Does slow page speed actually hurt rankings, or just user experience?
Both. Core Web Vitals are part of Google's Page Experience signals, and slow load times also increase bounce rate, which indirectly affects rankings by signaling weaker engagement.
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Meta Title & Description Checker
Paste a URL or raw HTML and get a pixel-accurate SERP preview with character counts, truncation risk flags, and Open Graph completeness checks for your title, description, and social tags.
Open tool →PageSpeed Performance Audit (Lighthouse)
Analyze mobile & desktop site speed with real Google PageSpeed Insights data — LCP, CLS, FCP, Speed Index, TBT scores, and screenshots, free.
Open tool →Heading Tag Analyzer (H1-H6)
Analyze your page's heading hierarchy instantly. Detect missing H1s, multiple H1 tags, skipped levels & empty headings with a visual outline tree.
Open tool →