Areacentese.com W3C HTML Markup Validation
HTML markup errors and warnings
(Rescan now...)
Errors:
The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.
Bad value “screen, projection” for attribute “media” on element “link”: Deprecated media type “projection”. For guidance, see the Media Types section in the current Media Queries specification.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Bad value “http:\\\\www.crcento.it” for attribute “href” on element “a”: Expected a slash ("/").
Bad value “http://www.germinationofplants.net/essential nutrients/” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.
Warnings:
Text run is not in Unicode Normalization Form C.
Italy IT