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How the Radar score is calculated
The formula is public. Six areas with fixed weights, 80 checks, and every check showing how many points it took away. A check that does not apply, or that could not be verified, subtracts nothing and its weight is redistributed inside its own area.
Methodology 1.0.0By area
- Mobile experience and performance25
- Search visibility20
- Automated accessibility15
- Technical quality and security signals15
- Contact and conversion structure15
- Identity and linked social presence10
The five outcomes of a check
- Working well
- Verified and in order.
- Could improve
- Works, but there is something to improve.
- Missing or not working
- Verified and failing.
- Not applicable
- Does not apply to this website.
- Not verified
- Radar could not obtain the evidence. It is not a failure.
The checks
Mobile experience and performance
- Time until the main content appears5
- Visual stability while loading4
- Time the page does not respond to taps4
- Time until the first visible content2
- How fast the first screen completes2
- Total page weight3
- Number of files the page requests2
- Images without width and height2
- Image optimization3
- Resources that block rendering2
- Text compression2
- Caching of static files1
- Adapting to the phone's width4
- Horizontal overflow on mobile4
- Size of the elements people tap2
Search visibility
- Server response5
- Redirect chain2
- Page title5
- Description for search results3
- Declared canonical address3
- Declared document language2
- Heading structure3
- Text present in the HTML5
- robots.txt file3
- Indexing directives of the page4
- Sitemap declared in robots.txt2
- Sitemap reachable and populated2
- Internal links on the page2
- Broken links4
- Structured data3
- Sharing metadata2
- Language versions declaration2
- Address and title agreement1
- Repeated titles across pages2
Automated accessibility
- Contrast between text and background5
- Alternative text on images4
- Labels on form fields4
- Accessible names of links and buttons3
- Heading order2
- Document language for screen readers2
- Valid ARIA attributes3
- Page regions2
- Size of touch targets2
- Ability to zoom the page3
- Keyboard navigation2
Technical quality and security signals
- Site served over HTTPS5
- Valid certificate5
- Redirect from HTTP to HTTPS4
- Resources loaded unencrypted4
- HSTS header2
- Content Security Policy2
- X-Content-Type-Options header1
- Referrer policy1
- Protection against embedding in other sites1
- Forms submitting over HTTPS4
- Cookie attributes2
- Third-party resources2
- Exposed technical information2
- Errors while loading3
- Answer for an address that does not exist2
Contact and conversion structure
- Main action on the home page5
- Action visible without scrolling4
- Phone number as a link3
- Email as a link2
- WhatsApp contact2
- Contact form3
- Contact page3
- Buttons with a real destination3
- Form structure2
- Competing actions on the home page2
- Path to getting in touch2
- Business information2
- Published policies2
- Trust signals1
Identity and linked social presence
- Linked social profiles4
- Valid profile addresses3
- Profiles that answer3
- Broken profiles4
- Username consistency2
- Image shown when sharing the link3
Limits of the method
- Radar does not certify WCAG compliance; it reports what an automated pass can verify.
- It does not state that a page ranks or was penalized: that would need Search Console.
- Its security section is passive observation, never a security audit.
- It judges structure, not the quality of the writing.
Every report keeps the methodology version it was produced with.
The methodology has a version number and every report keeps the one it was produced with, so a score can always be read against the rules that generated it. A new check, or a change to a weight, means a new version rather than a silent rewrite of what old reports meant.
Questions people ask before running it
Can I reproduce the score myself?
Yes. Each area has a fixed weight, each check a weight inside its area, and the report shows the points every check took away. Adding those up gives the overall score.
Why does an unverified check subtract nothing?
Because not seeing something is not the same as finding it wrong. When Radar cannot obtain the evidence, the check leaves the arithmetic and its weight is redistributed among the checks that were verified.
Do competitors change my score?
No. A comparison is shown separately, covers only the home page, and never alters the analyzed site's score or claims which business is better.