SEO Analysis: Understanding Your Website Audit Score
Last updated 11 March 2026
What Is SEO Analysis?
SEO Analysis is RnkRocket's automated audit tool. It crawls your website and checks each page for 22 issue types that affect how well your site ranks in Google.
You do not need any technical knowledge to use it. RnkRocket translates the findings into plain English and tells you exactly what to fix and why it matters.
What Gets Checked
The 22 issue types fall into five areas:
- Pages that return an HTTP error (for example, 404 not found)
- Mixed content: insecure HTTP files loaded on an HTTPS page
- Missing canonical tags
- Missing structured data (schema markup)
On-Page Optimisation
- Missing page titles, and titles that are too short or too long
- Missing meta descriptions, and descriptions that are too short or too long
- A missing H1 heading, or more than one H1 on a page
- Thin content (fewer than 300 words)
- Missing image alt text
- Pages with no links to other pages on your site
- Pages with more than 25 followed external links
Performance
- Slow server response (more than 5 seconds)
- Very large pages (more than 3MB)
- Self-hosted JPEG images that could be converted to a smaller format such as WebP
Mobile-Friendliness
- Pages that are not mobile friendly
- A missing viewport tag
Accessibility
- Form fields without labels
Alongside the audit, RnkRocket measures page speed and Core Web Vitals (how Google measures user experience) with Google Lighthouse — see our Core Web Vitals guide for a full breakdown. A separate accessibility scan checks your pages against WCAG guidelines, including colour contrast and missing labels on buttons and links.
Understanding Your SEO Score
Your overall SEO score runs from 0 to 100.
- 80-100: Your site is in good shape. Focus on fine-tuning.
- 60-79: There are meaningful improvements to make. Work through critical issues first.
- 40-59: Several issues are holding back your rankings. Prioritise the fixes marked as critical.
- 0-39: Significant problems need addressing. Start with the critical issues before anything else.
The score updates each time you run a new analysis, so you can track progress over time.
Severity Levels Explained
Every issue found is tagged with one of three severity levels:
- Critical: These issues directly harm your rankings or prevent Google from indexing your pages. Fix these first.
- Warning: These are worth addressing but will not cause immediate damage if left for a few weeks.
- Opportunity: These are improvements rather than faults, such as adding structured data or converting images to a smaller format. They can give you a boost once higher-priority issues are resolved.
Fix Recommendations
For every issue found, RnkRocket provides a plain-English explanation of:
- What the problem is
- Why it matters for your rankings
- The specific steps to fix it
You do not need to understand HTML or CSS to follow the recommendations. If a fix requires developer help, the description is clear enough to pass straight to your web developer.
How Often to Run an Analysis
- Monthly: A monthly analysis is a good routine to catch new issues before they compound.
- After major changes: Run a new analysis any time you launch new pages, change your hosting, update your theme, or add new plugins or scripts.
- After fixing issues: Re-run the analysis after making fixes to confirm the problems are resolved and your score has improved.
Each analysis counts against your monthly allowance (for example, Basic includes 10 per month and Pro includes 35). If you need more, you can purchase analysis top-up packs without upgrading your plan.
For a comprehensive checklist of what to audit, see our SEO audit checklist guide.
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