Instant results · 40+ checks · free to start

Free Website Checker: spot problems in seconds

Paste any URL and run a complete website check for SEO, speed, security, accessibility and Core Web Vitals — with clear fixes for every issue.

Free account required · 1 free check every 24 hours

What our website checker scans

Every check returns a 0–100 score with colour-coded results and plain-English steps to fix whatever we find.

We scan your page title, meta description, H1 usage, canonical tag and Open Graph tags so search engines understand your content.

Measures server response time (TTFB), total page weight, compression and blocking scripts that slow your load times.

Checks Largest Contentful Paint, Cumulative Layout Shift and interaction timing — the same signals Google uses for rankings.

Verifies viewport settings, tap-target sizes, fixed-width elements and inline styles that break phones and tablets.

Looks for HTTPS, HSTS, Content-Security-Policy, X-Frame-Options, X-Content-Type-Options and mixed content warnings.

Reviews html lang, missing alt text, unlabelled forms, empty buttons and semantic landmarks for screen readers.

Follows internal links to catch 404s, empty hrefs and unsafe external links that open without rel=noopener protection.

Flags images without width/height, missing lazy loading and outdated formats so pages load faster and shift less.

Validates HTML5 doctype, UTF-8 charset, deprecated tags and structured schema markup for cleaner crawling.

Small HTML, speed and security problems are easy to miss. Our checker surfaces them in one pass.

Scores and colour-coded ratings show you exactly what to tackle first for the biggest impact.

Save reports, re-check after changes and export polished PDFs to share with clients or teammates.

Every scan exports to a branded PDF with the overall score, category breakdowns, every issue found and the exact instructions to fix each one.