SEO Checker - Free Website SEO Analysis Tool (Free Semrush Alternative)

🚀 100% Free · No Signup · Instant Report

Free SEO Checker
Analyze Any Website Instantly

The premium SEO checker by Azo Mart Tools — get a complete on-page SEO audit like Semrush, but free. 30+ checks, actionable fixes, and a downloadable report. No signup, no limits.

Fast & reliable — powered by our own proxy. If a site blocks bots, use the "Paste HTML Source" mode instead.
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Semrush-Level SEO Analysis — Free

30+ on-page checks with actionable fixes.

Overall SEO Score

Get a 0-100 score with A+ to F grade based on 30+ ranking factors.

Meta Tag Analysis

Check title, description, canonical, robots, viewport for proper length.

Heading Structure

H1-H6 analysis with proper hierarchy check and keyword usage.

Image Alt Tags

Detect images missing alt attributes — a critical accessibility issue.

Link Analysis

Internal vs external links, nofollow ratio, and link quality.

Social & Schema

Open Graph, Twitter Cards, and JSON-LD structured data detection.

Frequently Asked Questions

Common questions about SEO analysis.

Is this SEO checker really free?

Yes, 100% free with no signup, no payment, and no limits. Unlike Semrush ($120/month), our on-page analyzer is completely free forever.

How is the SEO score calculated?

Our score is based on 30+ weighted checks including meta tags (title, description, canonical, robots), heading structure (H1-H6), image alt tags, link quality, content length, keyword usage, mobile viewport, HTTPS, and structured data. Each check contributes points to the final 0-100 score.

Why can't some websites be analyzed?

A few sites block bots entirely (via Cloudflare "I'm Under Attack" mode or similar). If it fails, use the "Paste HTML Source" mode — open the site, right-click → View Page Source, copy all HTML, and paste it.

What is a good SEO score?

90-100: Excellent — your page is well-optimized
75-89: Good — minor improvements needed
60-74: Fair — several issues to fix
40-59: Poor — significant problems
0-39: Critical — major SEO overhaul needed

Does this replace Semrush or Ahrefs?

Our tool covers on-page SEO very thoroughly — meta tags, headings, images, links, structured data. Semrush and Ahrefs additionally offer backlink analysis, keyword research, competitor tracking, rank monitoring — those require huge databases and paid infrastructure. For on-page audits, our tool is comparable.

Is my data stored?

No. All analysis happens in your browser. We don't store URLs, HTML content, or any report data on any server.

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