You search "check SEO score," enter your URL into a tool, and get a number. Maybe 73 out of 100. But what does that number actually mean? Is 73 good? Bad? And more importantly, what should you do about it?
An SEO score is not a Google metric. Google does not assign your site a score out of 100. SEO scores are generated by audit tools using their own criteria, and the methodology varies significantly between tools. Understanding how your score is calculated is the difference between chasing a number and actually improving your search performance.
What Is an SEO Score?
An SEO score is a tool-generated assessment of how well your webpage follows established search engine optimization best practices. Think of it as a health checkup report: it measures known indicators and flags anything outside normal ranges.
Key things to understand:
- It is not from Google. No search engine provides an "SEO score."
- Different tools give different scores. The same page can score 85 on one tool and 60 on another.
- The score itself does not affect rankings. It is a diagnostic tool, not a ranking factor.
- What matters is what the score reveals. The individual issues behind the score are what impact your search visibility.
How SEO Scores Are Calculated
Every SEO tool uses its own methodology, but the general approach is similar: check specific elements, assign severity to issues found, and calculate a weighted score.
Here is how CheckSEO calculates scores, as an example of a transparent methodology:
Base Score
Each of the 10 audit categories starts at a base score of 100 points.
Deductions by Severity
Issues found during the audit deduct points based on their severity:
| Severity | Deduction | Example | |----------|-----------|---------| | Critical | -20 points | Missing title tag, no SSL certificate | | Warning | -10 points | Title tag too long, missing meta description | | Info | -2 points | Suboptimal keyword density, missing secondary headings |
Category Weights
Not all categories are equally important. CheckSEO uses these weights to calculate your overall score:
| Category | Weight | What It Covers | |----------|--------|----------------| | Technical SEO | 15% | SSL, mobile, robots.txt, sitemap, favicon | | On-Page SEO | 15% | Title, meta description, headings, images, content | | Content Quality | 10% | Readability, keyword density, content freshness | | Links | 10% | Internal/external links, broken links | | Architecture | 10% | URL structure, HTTP headers, anchor diversity | | Structured Data | 10% | JSON-LD schema, Open Graph tags | | Trust Signals (E-E-A-T) | 10% | Author info, contact details, privacy policy | | AI Readiness | 10% | 19 signals for AI search compatibility | | Indexability | 7.5% | Canonical tags, meta robots, hreflang | | Performance | 2.5% | Page speed, Core Web Vitals |
Overall Score Calculation
Your overall score is the weighted average of all category scores:
Overall = (Technical * 0.15) + (OnPage * 0.15) + (Content * 0.10) + ...
For example, if your Technical SEO scores 90 and On-Page scores 70:
- Technical contribution: 90 * 0.15 = 13.5
- On-Page contribution: 70 * 0.15 = 10.5
- Plus all other categories...
- Sum = your overall score
How to Check Your SEO Score
Step-by-Step with CheckSEO
- Open CheckSEO.site in your browser
- Enter the URL you want to check (any publicly accessible webpage)
- Click "Run Audit" and wait approximately 30 seconds
- View your overall score displayed prominently at the top of the report
- Examine individual category scores to see where you are strong and where you need work
- Review the issues list sorted by severity (Critical first, then Warnings, then Info)
- Read specific recommendations for each issue found
The entire process takes about 30 seconds and does not require an account for your first audit.
Checking Competitor Scores
One of the most valuable uses of an SEO score checker is comparing your page against competitors:
- Audit your page and note the scores
- Audit your top 3 competitors' equivalent pages
- Compare category by category
- Focus improvements on categories where competitors outscore you
CheckSEO Pro users can use the comparison feature to run side-by-side audits of 2-4 URLs.
What Is a Good SEO Score?
Here is a general framework for interpreting scores:
| Score Range | Rating | Interpretation | |-------------|--------|----------------| | 90-100 | Excellent | Your page follows SEO best practices comprehensively. Focus on maintaining this level. | | 70-89 | Good | Solid foundation with room for improvement. A few targeted fixes can push you higher. | | 50-69 | Needs Work | Significant issues are likely hurting your search visibility. Prioritize critical fixes. | | Below 50 | Critical | Major SEO problems exist. Address critical issues immediately before working on anything else. |
Important context: most websites score between 55 and 75 on their first audit. A score of 70 is not bad; it just means there are clear opportunities for improvement.
Score by Category Matters More
Your overall score can hide important details. A page might score 82 overall but have a Technical SEO score of 40 because of a missing SSL certificate. The overall score looks decent, but one critical problem is undermining everything.
Always look at individual category scores, not just the overall number.
How to Improve Your SEO Score
Improving your score is not about chasing the number. It is about fixing the issues the score reveals. Here is the priority order:
1. Fix Critical Issues First
Critical issues have the largest impact on both your score and your actual search performance:
- Missing or duplicate title tag: Write a unique, keyword-rich title (50-60 characters)
- No SSL certificate: Install an SSL certificate (most hosts offer free ones via Let's Encrypt)
- Missing H1 heading: Ensure every page has exactly one H1 tag
- Broken links: Find and fix or remove broken internal and external links
Each critical fix recovers 20 points in its category.
2. Address Warnings
Warnings are the mid-tier issues that collectively make a significant difference:
- Title tag length: Adjust to 50-60 characters to prevent truncation in search results
- Meta description: Write a compelling 150-160 character description with your target keyword
- Image alt text: Add descriptive alt text to every meaningful image
- Missing structured data: Add at least Article and Organization JSON-LD schema
Each warning fix recovers 10 points.
3. Handle Informational Items
These are optimization opportunities rather than problems:
- Keyword density: Aim for 1-3% for your primary keyword
- Content length: Most ranking pages have 1000+ words for informational queries
- Heading structure: Use logical H2/H3 nesting, include keywords in headings
- FAQ schema: Add structured FAQ sections for AI readiness
4. Focus on High-Weight Categories
Since categories have different weights, improvements in higher-weighted categories move your overall score more:
- Technical SEO (15%) and On-Page SEO (15%) together account for 30% of your score. Fixing issues here has the most impact.
- Performance (2.5%) has the lowest weight. Do not obsess over a low performance score at the expense of higher-impact categories.
Tracking Score Over Time
A single check is a snapshot. Real SEO improvement requires tracking over time:
- Run monthly audits of your key pages
- Track category scores separately, not just the overall number
- Note what changed between audits (both improvements and regressions)
- Compare against competitors periodically
CheckSEO's audit history feature (for registered users) automatically tracks score changes over time, showing version numbers and score deltas for each URL.
Common Score Traps to Avoid
Chasing 100/100
A perfect score is possible but not always necessary. Some deductions reflect intentional choices (like not using FAQ schema on a contact page). Focus on fixing genuine problems, not gaming every metric.
Comparing Scores Across Tools
A score of 85 on CheckSEO and 65 on another tool does not mean one is wrong. Different tools check different things with different weights. Pick one tool and track your progress consistently within it.
Ignoring Mobile
If your SEO score is based on desktop analysis but your traffic is primarily mobile, you might be missing mobile-specific issues. Google uses mobile-first indexing, so your mobile experience matters more than desktop.
Check Your Score Now
Enter your URL at CheckSEO.site and get your scored SEO report in 30 seconds. See exactly how your page performs across all 10 categories, identify your highest-impact improvement opportunities, and start fixing the issues that matter most.
For a deeper understanding of what each audit category measures, read our guide to SEO audits. For technical SEO specifics, see our technical SEO checklist.