SEO Checker

What the SEO Checker Analyzes

The tool runs checks across 8 categories. Each category is scored independently, and the overall score is the average of all category scores.

🏷️ Meta Tags

Checks the title tag (presence, length, keyword use), meta description (presence, length), robots meta tag, canonical tag, and character set declaration.

📝 Headings and Content

Checks for a single H1 tag, the presence of H2 subheadings, logical heading hierarchy, word count, text-to-HTML ratio, and readability (average sentence length).

🖼️ Images

Checks whether images have alt attributes, whether width and height dimensions are declared, whether lazy loading is used, and whether next-generation formats (WebP, AVIF) are in use.

🔗 Links

Checks the number of internal links, external links, nofollow ratio, and total link count. Flags pages with no internal links or an unusually high nofollow ratio.

⚙️ Technical SEO

Checks HTTPS, viewport meta tag, structured data (Schema.org), favicon, GZIP compression, server response time, total page weight, and URL length.

🕷️ Crawlability

Checks for a robots.txt file, an XML sitemap, the HTML lang attribute, a noindex header, and whether the canonical tag points to the page itself.

🔒 Security Headers

Checks for HSTS, X-Frame-Options, X-Content-Type-Options, and Content-Security-Policy headers.

📣 Social & Metadata

Checks Open Graph tags (completeness and image), Twitter Card tag, hreflang tags, Apple Touch Icon, and RSS feed link.

Use Cases

Checking a page before publishing
Run the checker on any page before it goes live to catch missing meta tags, images without alt text, or a misconfigured canonical. Fixing these before indexing avoids cleanup later.

Auditing competitor pages
Enter a competitor’s URL to see how their page performs across the same 40+ checks. The keyword and anchor text tables are particularly useful for understanding their on-page strategy.

Diagnosing a ranking drop
When a page loses positions, the checker quickly surfaces technical issues — missing canonical, blocked by noindex header, poor text-to-HTML ratio, or slow server response — that may be contributing factors.

Reviewing pages on a new client site
Run the tool on key pages when onboarding a new website to build a quick picture of SEO health across meta tags, headings, technical setup, and security headers.

Checking pages after a site migration
After migrating a site, verify that HTTPS redirects are in place, canonical tags are correct, robots.txt is accessible, and the sitemap is reachable.

Testing individual landing pages
For pages targeting specific keywords, check that the title tag is the right length, the H1 is present, the meta description is set, and structured data is in place.

Helpful Tips

Use the full URL including https://.
The tool needs the complete URL to fetch the page correctly. Entering just a domain without https:// may cause an error or produce inaccurate results.

The tool checks the page as a server sees it.
The analysis is based on the raw HTML returned by the server, not the rendered DOM. JavaScript-rendered content may not be visible to the checker — the same way Googlebot sees a page on its initial crawl before rendering.

Category scores guide prioritization.
If you have limited time, focus on categories with the lowest scores first. A failing Meta Tags score typically has a higher direct ranking impact than a failing Security Headers score.

A pass does not mean perfect.
The checker evaluates individual factors against defined thresholds. A passing title tag score means the title is present and within the optimal length range — it does not evaluate whether the title is well-written or well-optimized for intent.

Response time is measured from the server’s location.
The response time shown reflects the time the tool’s server took to receive the page HTML. It is a useful signal but not a substitute for Lighthouse or Core Web Vitals testing from your users’ locations.

Security headers are checked but not required for ranking.
HSTS, CSP, and X-Frame-Options do not directly affect Google rankings, but they signal a well-maintained site and protect users. Flag any missing headers to your development team.