Very efficient free online tool to test any page and its language HTML settings, mainly
- its hreflang,
- its http-equiv,
- its HTTP Header
implementations and header links to other language versions, so as their online status.
(note that google recommends to use only one method to avoid errors, although no penalty if 2 or 3 methods are used)
Gratis, No requiere descarga ni instalación, Sin registro
