Free Website SEO Score Checker

What is a website SEO score?

A website SEO score is a 0-100 number that summarizes how well your site is optimized for search engines. It rolls up dozens of individual checks — title tags, meta descriptions, page speed, backlinks, schema markup, content depth — into a single grade A-F.

Think of it as a yearly physical for your website. The score itself doesn't directly affect rankings (Google doesn't use any single tool's score), but the underlying signals it measures are what Google actually weighs. A site with a strong SEO score has the foundation in place to rank — provided the content quality and backlink profile are competitive for the target keywords.

What is a good SEO score?

80-100 is excellent (Grade A). 65-79 is good (Grade B). 50-64 is average (Grade C). Below 50 indicates multiple critical gaps.

• 90-100 (A+): Top-tier site. Strong technical foundation, comprehensive content, healthy backlinks, AI-ready. Likely already ranking well.
• 75-89 (A/B): Solid SEO foundation. A few quick wins remain — usually around schema, AI readiness, or page speed.
• 60-74 (B/C): Average. Multiple optimization opportunities. Most small business sites land here on first check.
• 45-59 (D): Significant gaps. Probably missing schema, has thin content, or weak on-page basics. Improvable in 30-60 days.
• Under 45 (F): Major SEO problems. Often a brand-new site, a single-page site, or one that doesn't pass basic technical checks.

Most small business websites score 35-55 on first check. Brands with active SEO programs sit at 75+. The gap between average and excellent is usually 20-30 points and 60-90 days of focused work.

How is the SEO score calculated?

Eight dimensions, weighted by their impact on rankings. Each dimension contains 2-6 specific checks with pass/fail/partial scoring. Real metrics like Domain Rating, ranking keywords, and PageSpeed score are pulled live from an SEO data provider and Google rather than estimated.

How do I improve my website SEO score?

Start with the top 3 priority fixes the tool identifies. They're ranked by impact-to-effort ratio — fixing them first delivers the biggest score lift per hour of work. Then work down the dimensions in this order:

1. Quick wins first (under 30 minutes each). Title tag length, meta description, viewport meta tag, image alt text, Open Graph tags. These can lift your score 8-15 points in an afternoon.
2. Schema markup (1-2 hours). Add LocalBusiness schema with the specific subtype (Dentist, Plumber, Restaurant, etc.). Add FAQ schema if you have an FAQ section. Use our free schema markup generator.
3. AI readiness (1-2 hours). Create an /llms.txt file. Reformat existing content with question-format H2 headings. Audit robots.txt to ensure GPTBot, ClaudeBot, and PerplexityBot aren't blocked.
4. Content depth (4-8 hours per page). Top pages should have 800-2,000 words covering all the relevant subtopics. Pair this with our on-page SEO checker to see what competitors cover.
5. Page speed (variable). Optimize images, defer JS, audit third-party scripts. Aim for mobile PageSpeed ≥75 and Core Web Vitals all in the green.
6. Backlinks (multi-month). Domain Rating grows slowly. Focus on guest posts, podcast appearances, partnerships, and creating link-worthy resources. 50+ unique referring domains is the typical inflection point.

What is Domain Rating (DR)?

Domain Rating is a 0-100 score that measures the strength of your backlink profile. Sometimes called Domain Authority. It's calculated from the number of unique referring domains, the authority of those domains, and the relevance of the links.

Rough benchmarks: Domain Rating 70+ is "household brand" territory (Forbes, Wikipedia, Amazon). 50-70 is "established business." 30-50 is "growing — ranking for moderate-difficulty keywords." 10-30 is "early stage — ranks for long-tail." Under 10 is "brand new or rarely linked."

DR builds slowly. The fastest path is creating link-worthy assets (data studies, free tools, original research, comprehensive guides) and getting them in front of journalists and industry influencers. Buying links is risky and Google penalizes it.

What is AI readiness in SEO?

AI readiness measures how well your website is set up to be cited by AI-powered search: ChatGPT, Perplexity, Google AI Overviews, Gemini, and Claude.

Four signals matter most. FAQ schema and question-format H2s are what AI Overviews and Featured Snippets pull from first. An /llms.txt file is the emerging standard for guiding AI crawlers — adding one is a 5-minute win that signals AI-readiness explicitly. AI crawler access in robots.txt — make sure GPTBot, ClaudeBot, PerplexityBot, and Google-Extended aren't blocked. Question-and-answer content structure with one-line direct answers below each question, then expansion.

AI readiness is the 2026 differentiator. As AI search expands (ChatGPT now has 800M weekly users, Perplexity 30M+), sites missing these signals lose visibility. The good news: AI readiness is mostly free to implement and most competitors haven't done it yet.

How this tool differs from Sitechecker, Seobility, and Semrush

We built this because most free SEO checkers fall into one of two camps: technical-only (lots of warnings, no real metrics) or paywalled-by-design (free preview, $99+/mo for actual data). Here's how we compare:

Frequently asked questions

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