Rtp.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
Bad value “cleartype” for attribute “http-equiv” on element “meta”.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Attribute “alt” not allowed on element “noscript” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
No space between attributes.
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Bad value “https://scontent.cdninstagram.com/vp/3ab1e0ecfdfbe8f366aac4b30bbccbf7/5C36E9B0/t51.2885-15/sh0.08/e35/s640x640/37929445_2168430103398356_621641720903237632_n.jpg alt=” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
Attribute “"” not allowed on element “img” at this point.
Duplicate ID “Layer_1”.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
Attribute “"” is not serializable as XML 1.0.
The first occurrence of ID “Layer_1” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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