SEO issue · by CMS
Content-Type header doesn't match the actual content by CMS
The "Content-Type header doesn't match the actual content" issue affects 10 CMS groups; compare which platforms are most exposed.
10
CMS groups
CMS groups affected
Related
Catalog
Content-Type header doesn't match the actual content
Gatsby
Hugo
Jekyll
Joomla
Next.js
Shopify
Squarespace
Webflow
Wix
WordPress
Audit your own site — free
157 checks, internal PageRank, render-diff. No signup, results in ~30s.