Errors:
Attribute “xmlns:og” not allowed here.
Attribute “xmlns:fb” not allowed here.
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 document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Element “notification” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
“"” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Element “siteheader” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Element “headersearchmodal” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “regwalllinks” not allowed as child of element “header” in this context. (Suppressing further errors from this subtree.)
Element “headersearchtoggle” not allowed as child of element “section” in this context. (Suppressing further errors from this subtree.)
Element “headersearchbar” not allowed as child of element “header” in this context. (Suppressing further errors from this subtree.)
Element “notification” not allowed as child of element “header” in this context. (Suppressing further errors from this subtree.)
Element “figcaption” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
Bad value “http://adfarm1.adition.com/js?wp_id=3720735&prf[partnerId]=partnerseiten/kooperationen/de/tennisde” for attribute “src” on element “script”: Illegal character in query: “[” is not allowed.
Bad value “http://adfarm1.adition.com/click?sid=3720735&ts=[timestamp]” for attribute “href” on element “a”: Illegal character in query: “[” is not allowed.
Bad value “http://adfarm1.adition.com/banner?sid=3720735&ts=[timestamp]” for attribute “src” on element “img”: Illegal character in query: “[” is not allowed.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The text content of element “time” was not in the required format: The literal did not satisfy the time-datetime format.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Warnings:
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
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