SEOAtlas
Free Tool•Single Page Audit

Website SEO Analyzer

Analyze a webpage for essential on-page and technical SEO signals including metadata, headings, links, images, social tags and structured data.

TitleMeta DescriptionH1 & H2CanonicalOpen GraphJSON-LD

Workspace

Analyze a webpage

Enter a public webpage URL and SEOAtlas will fetch the HTML server-side and run a basic single-page audit.

Single-page analysis•HTTP & HTTPS only•Private network addresses blocked

SEO score

A transparent checklist score based on detected page signals.

On-page checks

Review titles, descriptions, headings and canonical metadata.

Images & links

Inspect image alt coverage and basic internal and external links.

Structured data

Detect JSON-LD and common social sharing metadata.

A focused single-page SEO audit

The analyzer inspects important signals directly from the returned HTML. It does not crawl the entire website.

On-page metadata

Review the title tag, meta description, canonical and robots directives.

Heading structure

Count H1 and H2 headings and review detected H1 content.

Links & images

Inspect basic internal/external link counts and image alt coverage.

Social & structured data

Detect Open Graph, X/Twitter metadata and JSON-LD blocks.

Built as a safe single-page analyzer

SEOAtlas blocks localhost and common private-network addresses, limits redirects, enforces a response-size limit and applies a request timeout. Only public HTTP and HTTPS webpages are supported.

Learn

What does the Website SEO Analyzer check?

This is not a full website crawler. It does not currently evaluate JavaScript-rendered content after browser execution, backlinks, keyword rankings, server logs, complete accessibility, performance waterfalls or every technical SEO condition. Where sufficient real-user data is available, SEOAtlas also shows Chrome UX Report field-performance metrics such as LCP, INP, CLS, FCP and TTFB.

What it does not check

This is not a full website crawler or Core Web Vitals platform. It does not currently evaluate JavaScript-rendered content after browser execution, backlinks, keyword rankings, server logs, complete accessibility, performance waterfalls, or every technical SEO condition.

How to use the results

Fix clear failures first, such as missing titles or meta descriptions.
Review warnings in context instead of treating every warning as an error.
Check canonical and robots directives carefully before changing indexing behavior.
Use link, image and heading counts as diagnostic signals rather than ranking formulas.
Re-run the analyzer after publishing changes to confirm the returned HTML.

The SEO score is intentionally simple

The score summarizes only the checks shown in the report. It does not predict rankings, traffic or search engine performance.