What does the SEO Checker check?

It evaluates title tags, meta descriptions, H1 headings, content length, and image alt text.

Is this SEO Checker free?

Yes, 100% free with no registration or limits.

Why did Live URL Scan fail?

Some sites block automated fetch requests. Switch to the HTML Source Inspector tab and paste the page's HTML source instead — the same checks run on it locally.

Does a higher SEO score guarantee better search rankings?

No — this score reflects on-page technical fundamentals (titles, meta tags, headings, alt text), which are a meaningful part of SEO but not the whole picture. Actual rankings also depend on factors like backlinks, content quality, and competition that this tool doesn't measure.

SEO Checker

Check website SEO instantly with quick meta tag, heading & on-page scores.

TL;DR: SEO Checker is a free, browser-based tool that lets you check website SEO instantly with quick meta tag, heading & on-page scores.

Enter Website URL for Instant On-Page SEO Check

About the SEO Checker

SEO Checker provides an instant on-page health score, analyzing keyword placement in title tags, content word volume, semantic heading distribution, image accessibility, and mobile-friendly metadata.

Two Ways to Check a Page

Live URL Scan — enter a URL and the tool fetches it (via our fetch service, or your browser directly) and scores the real page.
HTML Source Inspector — paste a page's HTML directly and it's scored the same way, entirely in your browser, with nothing sent anywhere.
If a site blocks the Live URL Scan's fetch attempt, switch to HTML Source Inspector and paste the markup instead — most sites let you view-source or copy it from browser dev tools.

Frequently Asked Questions

: It evaluates title tags, meta descriptions, H1 headings, content length, and image alt text.
: Yes, 100% free with no registration or limits.
: Some sites block automated fetch requests. Switch to the HTML Source Inspector tab and paste the page's HTML source instead — the same checks run on it locally.
: No — this score reflects on-page technical fundamentals (titles, meta tags, headings, alt text), which are a meaningful part of SEO but not the whole picture. Actual rankings also depend on factors like backlinks, content quality, and competition that this tool doesn't measure.

Live URL Analysis & Privacy

When auditing or extracting from a live URL, public webpage markup is fetched via our secure proxy service. When using direct input mode, all analysis runs 100% locally in your browser with zero network requests.

Cite This Tool

Referencing this tool in a paper, article, or bibliography? Copy a ready-made citation below.

NexLove.org. (2026). SEO Checker [Software]. https://nexlove.org/tools/seo-checker.html

“SEO Checker.” NexLove.org, 2026, nexlove.org/tools/seo-checker.html.

NexLove.org (2026) SEO Checker. Available at: https://nexlove.org/tools/seo-checker.html (Accessed: 2026).

@misc{nexlove_seo_checker,
  title = {SEO Checker},
  author = {{NexLove.org}},
  year = {2026},
  url = {https://nexlove.org/tools/seo-checker.html}
}

Embed This Tool

Add the live SEO Checker tool to your own website with this snippet — it loads the real, working tool in an iframe, not a static screenshot.

<iframe src="https://nexlove.org/embed/seo-checker.html" width="100%" height="600" style="border:1px solid #e2e8f0;border-radius:12px" title="SEO Checker — NexLove.org" loading="lazy"></iframe>

Related SEO Tools

SEO Audit Report

Website SEO Auditor

Browse all SEO Tools