Critical SEO Issue Check
- HTTP 5XX server errors
- HTTP 4XX client errors
- Title tag is missing or empty
- Duplicate title tag
- Duplicate content
- Internal broken links
- We couldn`t crawl the page
- We couldn`t resolve DNS to crawl your site
- We couldn`t open the page`s URL
- External broken links
- Internal images are broken
- External images are broken
- Duplicate meta description
- Malformed robots.txt
- Sitemap files have format errors
- Wrong pages found in sitemap
- WWW domain configured incorrectly
- Pages have no viewport tag
- Large HTML page size
- Missing canonical tags in AMP pages
- Hreflang implementation issues
- Hreflang conflicts within page source code
- Bad hreflang link
- Non-secure pages
- Certificate Expiration
- Old security protocol version
- Certificate registered to incorrect name
- Mixed content
- Neither canonical URL nor 301 redirect from HTTP homepage to HTTPS version
- Redirect chains and loops
Technical SEO Warning Check
- Links to HTTP pages
- Title element is too short
- Title element is too long
- Missing h1 heading
- Multiple h1 tags
- H1 and title tags have duplicate content
- The meta description tag is missing
- Too many on-page links
- 302/307 redirect
- Images without an ALT attribute
- Slow loading speed
- Text/HTML ratio
- Overly dynamic URLs
- Language is not specified
- Encoding not declared
- Doctype not declared
- Page has a low word count
- Flash is used
- Frame is detected
- Underscores in URLs
- Internal links use a nofollow attribute
- Sitemap exist but not found in robots
- Sitemap file not found
- Homepage does not use HTTPS encryption
- No SNI support
- HTTP link in HTTPS sitemap
SEO Best Practices Check
- Crawler blocked
- Long URL
- External links use a nofollow attribute
- No robots txt
- Hreflang language mismatch issues
- No HSTS support
- Orphaned sitemap pages
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