What this SEO checker tests
The checker fetches the page the way a search engine would, then runs 15 checks on the HTML:
| Check | Why it matters |
|---|---|
| Status and HTTPS | A page that errors or isn't secure can't rank well |
| Title tag | The clickable headline in Google; 30 to 60 characters is a safe range |
| Meta description | The snippet under the title; it drives clicks, not rankings |
| H1 heading | One clear H1 tells search engines and readers what the page is about |
| Canonical tag | Prevents duplicate URLs from competing with each other |
| Indexing | Catches a stray noindex tag or X-Robots-Tag header |
| Language and viewport | Basic signals for the right audience and mobile devices |
| Structured data | Lists the schema types found, and flags invalid JSON-LD |
| Social tags | Open Graph title and image for good-looking shares |
| Image alt text | Accessibility and image search |
| Internal links and content length | Thin, isolated pages rarely rank |
How to read your score
The score starts at 100 and drops for every item marked Fix or Check. A score above 85 means the page's basics are in place. Below 70 usually means something important is missing, like a title, a description or an indexable status.
A good score doesn't guarantee rankings. Content quality, links, speed and competition decide most of the result. But pages that fail the basics almost never rank, so this is the first thing to get right.
Common problems the checker finds
- Duplicate or missing titles on product and category pages generated by a CMS.
- Meta descriptions that are too long, so Google rewrites them.
- Two or more H1 headings from themes that wrap the logo in an H1.
- No canonical tag on pages that can be reached through several URLs.
- Images without alt text, especially in sliders and galleries.
Limits of a single-page check
The checker reads the HTML the server sends. Content added later by JavaScript, site-wide issues like broken internal links, and speed metrics need a full crawl and lab tests. That's what a technical SEO audit covers.