SEO Checker Online Free

Comprehensive on-page SEO analysis in seconds. 40+ checks across 9 categories, meta tags, headings, images, links, technical SEO, crawlability, security headers, social cards, and content quality. Score, priority issues, and per-check fixes for any URL.

40+ checks across 9 categories: meta tags, headings, images, links, technical, crawl, security, and social.

How to Run an SEO Audit

1

Enter Your URL

Paste any webpage URL into the input field.

2

Review the Score

See your SEO score and detailed checks for title, meta, headings, and more.

3

Fix & Re-Audit

Fix the issues and click Re-Audit to see your improved score.

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A Full SEO Audit From a Single URL

Title, description, headings, canonicals, robots, schema, and image alt text: the audit covers every on-page SEO check in one report and rolls them into a single score.

Run it on your top pages every quarter, fix the red items first, and watch organic traffic compound over the months that follow.

Why Use Our SEO Checker?

40+ Checks, 9 Categories

Every audit covers Meta Tags, Headings & Content, Images, Links, Technical SEO, Crawlability, Security Headers, and Social/Metadata. Each check has a points budget so the overall score reflects what actually matters, fixing a missing H1 (10 pts) outweighs a missing apple-touch-icon (3 pts).

Priority Issues First

After the scan, all failed checks are sorted by their points value and surfaced as a Priority Issues list at the top of the report. So instead of scrolling through everything, you can fix the five highest-impact problems first, usually missing title, meta description, H1, viewport, or HTTPS.

Animated Score & Bars

A 0-100 SEO score is rendered as an animated SVG donut, with per-category progress bars showing exactly where you scored well and where you fell short. Stats row exposes URL, HTTP status, response time, page size, word count, image count, link count, and pass/warn/fail totals.

Server-Side Fetch

The audit fetches the URL server-side via wp_remote_get with proper redirect handling, then parses the HTML with DOMDocument/DOMXPath. This means the tool sees what Googlebot sees, no client-side JavaScript rendering, no hidden DOM injected after page load.

Frequently Asked Questions

Common questions about the SEO checker.

How is the SEO score calculated?
Each of the 40+ checks awards points (e.g. valid HTTPS = 12 pts, missing H1 = 0/10, optimal title length = 12/12). The category score is points-earned ÷ points-possible × 100, and the overall score is the simple average of the 8 category scores. Checks are weighted so that high-impact items (HTTPS, title, meta description, H1, viewport) carry more weight than nice-to-haves (RSS, apple-touch-icon).
Why does the result differ from Google PageSpeed Insights?
PageSpeed measures Core Web Vitals (LCP, CLS, INP) using a real headless Chrome and field data from real users. This tool focuses on on-page SEO, what is in your HTML, and runs a fast static analysis. They are complementary: this checker tells you what to fix in your markup; PageSpeed tells you what to fix in your performance.
Why is my JavaScript-rendered content missing from the audit?
The tool reads the static HTML returned by the server, the same way Googlebot does on its first crawl. Content rendered client-side via React, Vue, or Next.js client mode after page load is invisible to this checker, and frequently to Googlebot too if your site is not properly configured for SSR or pre-rendering. If your important content only appears via JS, that is itself an SEO issue worth fixing.
Is the audit data stored or shared?
No. Each audit is a single HTTP request handled server-side. Nothing is logged, stored in the database, or shared with third parties. The result is rendered in your browser only.
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