UtiliKit

On-page SEO audit

Free SEO Checker & On-Page Analyzer

Audit a live URL or paste page HTML to find title, description, heading, link, image, schema, and content issues before you publish.

Checks visible HTML Works without sign-up Backlinks and rankings not measured

Auditing multiple pages?

Premium unlocks unlimited SEO checks for launch reviews, client pages, and repeated optimization work.

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Frequently Asked Questions

What does the SEO analyzer check?

UtiliKit's SEO analyzer audits title tags, meta descriptions, H1-H6 heading structure, image alt text, canonical URLs, Open Graph tags, page word count, schema markup, and internal/external link ratios.

Is the SEO analyzer free?

Yes. The free tier includes daily on-page SEO checks for URLs or pasted HTML. Premium unlocks unlimited repeat audits for launch QA, client work, and ongoing optimization.

How accurate is the SEO score?

The score reflects visible on-page and technical HTML signals. It does not measure rankings, backlinks, crawl depth, server logs, or real Core Web Vitals field data.

Related Publishing Tools

Character Counter Word Counter Image Compressor UtiliKit Premium

Free Online SEO Checker for On-Page Audits

Analyze a webpage's on-page SEO health with the UtiliKit SEO Analyzer. The tool examines visible HTML signals that are easy to miss during publishing: title tags, meta descriptions, heading structure, image alt text, canonical URLs, schema markup, social previews, page copy, and link patterns.

Enter a URL for a live-page check, or paste HTML when a site blocks browser-based fetching. The score is designed as an editorial and technical checklist, not as a promise of rankings. It does not crawl full sites, measure backlinks, inspect server logs, or collect real Core Web Vitals field data.

What We Analyze

🔍 Title Tag (15% weight)

The title tag is crucial for rankings and click-through rates. We check for presence and optimal length (50-60 characters).

📝 Meta Description (12%)

Meta descriptions influence click-through rates from search results. We verify presence and check for optimal length (150-160 characters).

🏗️ H1 Heading (12%)

Every page should have exactly one H1 heading. We check for presence and flag pages with missing or multiple H1 tags.

🖼️ Image Alt Text (10%)

Alt text helps search engines understand images and improves accessibility. We count images with missing alt attributes.

📏 Content Length (10%)

Thin content often struggles to rank. We analyze word count and flag pages with fewer than 300-500 words.

🔗 Internal Links (5%)

Internal links help search engines discover content. We count internal vs. external links and flag pages with insufficient linking.

Additional Checks