UnderHost
SEO Audit

Full SEO Audit Tool

Enter any URL for a complete SEO health check — scored out of 100 with actionable recommendations.

Works with any public URL — no sign-up or API key needed.

SEO score out of 100
Title & meta description
Open Graph & Twitter Cards
Schema & structured data
Robots.txt & sitemap
Images & alt text

14 SEO checks. One score. Clear fixes.

Enter any URL above to get an instant pass / warning / fail audit across every major on-page and technical SEO signal.

Title & Meta Description

Check presence, character length, truncation risk, and get specific rewording recommendations.

Heading Structure

Detect missing H1, multiple H1 issues, H2 count, and heading hierarchy problems.

Canonical & Robots

Verify canonical URL, noindex signals, X-Robots-Tag, and HTTP status codes.

Open Graph & Twitter Cards

Confirm og:title, og:image, og:description, twitter:card and all required social tags are present.

Robots.txt & Sitemap

Check robots.txt accessibility, crawl blocking, and XML sitemap presence at common locations.

Schema & JSON-LD

Detect structured data blocks, identify schema types, and flag invalid JSON-LD that will fail validation.

Mobile Viewport

Verify the viewport meta tag exists with width=device-width for correct mobile rendering.

Images & Alt Text

Count images missing alt attributes — important for accessibility, image SEO, and Core Web Vitals.

Content Quality

Estimate word count, paragraph structure, language attribute, internal/external links, and thin content risk.

Need help fixing your SEO issues?

UnderHost managed WordPress hosting includes SEO-optimised server config, caching, free SSL, and 24/7 expert support.

Tool guide

Using the Full SEO Audit Tool

The SEO audit brings together on-page and technical checks so a page can be reviewed before publishing, migration, or ranking work.

What this tool does

It checks title, meta description, headings, canonical, Open Graph, Twitter Cards, robots, sitemap, schema, content, images, and indexability signals.

Who it helps

  • Site owners reviewing important pages
  • SEO teams auditing technical basics
  • Developers validating templates after deployment

Usage instructions

Enter the exact page URL. Use the score as a summary, then work through failed and warning items in order of business importance.

Understanding the output

A warning may be harmless for some page types, but missing canonical, noindex, blocked robots, missing titles, or poor content structure can affect discoverability.

Why it matters for hosting

Hosting changes can alter redirects, HTTPS, robots.txt, sitemaps, and response codes, so SEO checks are useful before and after migrations.