CrawluneTechnical SEO checks
Crawlune runs 106 checks on every crawl. Each one explains why it matters and how to fix it.
Response codes
- No responseerror
- Client error (4xx)error
- Server error (5xx)error
- Redirect looperror
- Redirect to error pageerror
- Redirect chainwarning
- Blocked by robots.txtwarning
- External link brokenwarning
- Slow response (over 2s)warning
- Content-Type header missingwarning
- Redirect (3xx)info
- Temporary redirect (302/303/307)info
URL
Security
- HTTP URL (not HTTPS)error
- Mixed contenterror
- Form posts to HTTPerror
- Missing HSTS headeropportunity
- Missing X-Content-Type-Options headeropportunity
- Missing X-Frame-Options / CSP frame-ancestorsopportunity
- Unsafe cross-origin linksopportunity
- Missing Referrer-Policy headerinfo
- Missing Content-Security-Policy headerinfo
- Server version disclosedinfo
Page titles
Meta description
H1
Headings
Canonicals
Directives
Content
Images
Links
- Links to localhosterror
- Links to broken internal URLserror
- Page has no internal outlinkswarning
- No internal inlinks foundwarning
- High crawl depth (over 3 clicks)opportunity
- Over 300 outlinksopportunity
- Non-descriptive anchor textopportunity
- Links to redirecting URLsopportunity
- Internal nofollow linksinfo
- Links with no anchor textinfo