SiteAuditLab
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Free SEO Audit Tool

Find and fix SEO issues in seconds

Analyse any URL for 14 SEO factors. Check title, meta description, Open Graph, heading hierarchy, canonical tags, robots.txt, sitemap, and structured data — with grade and recommendations.

Results in ~10 seconds · Sign up free to save history & set up monitoring

This tool uses the same scanner as the full SiteAuditLab audit — pre-filtered to this category. Run a full scan to see Security, Performance, SEO, Accessibility, Privacy & more together.

What gets checked

Title tag presence, length, and uniqueness
Meta description length and quality
Open Graph tags (og:title, og:description, og:image)
Twitter Card tags
Canonical URL configuration
H1 heading presence and uniqueness
Heading hierarchy (H1–H6)
robots.txt file validity
XML sitemap detection
Noindex / nofollow directives
Structured data (JSON-LD / Schema.org)
Viewport meta tag for mobile
Image alt text coverage
Internal vs. external link audit

Frequently asked questions

What does an SEO audit check?

A technical SEO audit checks the on-page and structural elements that affect how search engines crawl and rank your site. This includes meta tags, heading structure, canonical URLs, sitemap and robots.txt configuration, Open Graph for social sharing, structured data markup, and mobile viewport configuration.

How do I improve my SEO score?

Start with the critical findings — missing title tags and meta descriptions are easy wins with high impact. Then fix structural issues like duplicate H1s or missing canonical tags. Finally, add structured data (JSON-LD) to help Google understand your content and qualify for rich results.

What is a canonical URL?

A canonical URL tells search engines which version of a page is the 'original' when multiple URLs serve similar content (e.g., with/without trailing slash, HTTP vs HTTPS). Missing canonicals can cause duplicate content penalties. Add <link rel="canonical" href="..."> in your <head>.

How important is the meta description for SEO?

Meta descriptions don't directly affect rankings but they heavily influence click-through rate (CTR) from search results. Google displays them in snippets. A compelling 150–160 character description can significantly increase organic traffic.

Does this check Core Web Vitals too?

Yes — run a full audit (all categories) to also check Core Web Vitals performance metrics from the Chrome User Experience Report. The SEO-only scan focuses on on-page technical elements.

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