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Tools / Free SEO Checker

Free SEO Checker & Website Audit Tool

Audit any page in seconds. Spot SEO issues, boost rankings, and beat your competitors — powered by Semrush data and SEOquake reporting.

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Try it on:

Want a full browser toolbox? Download SEOquake.

  • Conduct on-page SEO audits
  • Examine internal links
  • Compare URLs in real time
  • Export all data into a file
Install Now100% free download

How to Use The Free SEO Checker

  • 1Enter your website or page URL in the field above
  • 2Click "Check SEO" to get a free SEO report in seconds
  • 3Fix critical issues and boost your rankings

Instantly Score Your On-Page SEO

Drop in a URL. Get a real-time on-site SEO report with actionable insights — no setup, no signup, no waiting.

  • Get a fast SEO score and performance overview
  • Identify on-page SEO issues and ranking factors
  • Perfect for small business owners and marketers
  • Works on mobile devices and desktop

For deeper SEO analysis across your entire website, try Semrush’s Site Audit tool.

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Find & Fix Critical SEO Issues Fast

Stop guessing. Get a focused SEO analysis of what’s holding your page back.

  • Spot missing or poorly sized titles and meta descriptions
  • Catch broken internal and external links
  • See every internal and external link on your page
  • Get clear recommendations for improvement
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See Your Top Keywords & Backlinks

Know what’s helping your page rank — and where you can grow.

  • View top keywords you rank for in Google Search
  • See high-value backlinks pointing to your site
  • Uncover opportunities based on real search data
  • Understand what’s influencing your SEO performance
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Benchmark Against the Competition

See who you're really competing with in search. Beat them with Semrush.

  • See your main organic competitors at a glance
  • Check shared keywords and competition level for each
  • View your full competitor list in Semrush
  • Close ranking gaps with Semrush's Keyword Magic tool
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Run a Free SEO Audit in 60 Seconds

Find out what's going on with your SEO, fast. Enter any URL for an SEO score, a list of issues, and how to fix them — all in one free report.

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What Issues Will the SEO Checker Look For?

38 individual checks, grouped into 8 areas

  • Meta tags and SERP snippets

    Flags missing, short, or long title tags, meta descriptions, and URLs that hurt rankings.

    3 checks

  • Page speed and Core Web Vitals

    Surfaces mobile and desktop performance issues, including Core Web Vitals metrics from PageSpeed Insights.

    4 checks

  • Crawl and indexing access

    Reviews robots.txt, XML sitemaps, noindex tags, and canonical URLs for crawl barriers.

    4 checks

  • Content and heading structure

    Checks for thin content, keyword density, image alt text, H1 usage, and heading hierarchy.

    5 checks

  • Mobile usability and accessibility

    Checks viewport, font sizes, tap targets, contrast, form labels, landmarks, and skip links.

    10 checks

  • Technical setup and site trust

    Reviews HTTPS, encoding, doctype, language, favicon, and other signals that affect SEO.

    6 checks

  • Social and local visibility

    Checks Open Graph, Twitter/X cards, social profiles, local schema, contacts, and maps.

    6 checks

  • Links and website authority

    Reviews internal and external links and provides backlink and authority data straight from Semrush.

    SEMRUSH DATA

Who Should Use the Website SEO Checker?

Backlinko’s Website SEO Checker gives anyone — regardless of budget or technical skill — a fast way to catch site issues before they hurt visibility.

  • Business owners: plain-language fixes, zero jargon
  • Bloggers and creators: see why pages aren't ranking
  • Freelancers and agencies: fast, client-ready audits
  • In-house marketers: progress you can show stakeholders

Need to audit a whole site or dig deeper? Semrush Site Audit crawls every page and tracks issues over time.

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How to Use Your SEO Checker Report

Your Website SEO Checker report is packed with data. Here's how to turn it into action.

  • Fix critical errors first

    The Issues Overview report sorts every problem by severity, so you can knock out critical errors like crawl blocks and missing HTTPS before spending time on the small stuff.

  • Speed up your site

    Slow pages lose visibility and visitors. See how your pages perform on mobile and desktop with Core Web Vitals and Lighthouse data, and get clear, color-coded results that show what to fix first.

  • Improve your on-page SEO

    Get an instant on-page analysis that surfaces issues and quick wins. Nine checks review your title tags, meta descriptions, headings, alt text, and keyword density, each with a tip to help you fix them.

  • Find keyword and content opportunities

    Your best content ideas are hiding in your own data. See which keywords drive the most traffic to your site and whether any pages have thin content. Then, decide which pages to create or expand.

  • Audit your off-page SEO

    Review your top backlinks, referring domains, and website authority. Plus, size up the sites competing for your same keywords so you know exactly who to outmaneuver.

  • Confirm what's already working

    A strong SEO score and a list of passed checks confirm what you're already doing right and give you a benchmark to measure future progress against.

  • Learn SEO as you go

    Don't just fix issues — understand them. Every check comes with a clear tip and a deeper guide that explains the how and why, so you're learning SEO as you improve your site.

  • Watch your SEO score climb

    Three free checks per day let you recheck your site after every round of fixes and watch your score rise. It's a fast and easy way to track progress and see your hard work paying off.

Want to Go Deeper? Run a Full Site Audit with Semrush

This free tool gives you a quick snapshot. But with Semrush, you get the full picture.

  • Audit your entire website, not just one page
  • Track keyword movements, visibility, and competitors
  • Uncover technical SEO issues sitewide
  • Access backlink analytics, content gaps, and more
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Frequently Asked Questions

Find keywords, check rankings, audit pages, analyze backlinks, and see how AI search surfaces your brand.

Ready to Check Your Site's SEO?

Paste any URL to get a free SEO report in seconds, no account required. With three free checks per day, you can track progress and improve your visibility over time.

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