Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
The “charset” attribute on the “link” element is obsolete. Use an HTTP Content-Type header on the linked resource instead.
Element “script” must not have attribute “charset” unless attribute “src” is also specified.
Bad value “true” for attribute “async” on element “script”.
Element “script” must not have attribute “async” unless attribute “src” is also specified.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “100px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Bad value “Blog Literatur” for attribute “name” on element “a”: An ID must not contain whitespace.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.
The “border” attribute on the “table” element is obsolete. Use CSS instead.
Duplicate ID “frequenzen”.
The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.
The “width” attribute on the “td” element is obsolete. Use CSS instead.
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Attribute “"” not allowed on element “a” at this point.
“td” start tag in table body.
Stray end tag “div”.
Attribute “background” not allowed on element “table” at this point.
The “height” attribute on the “td” element is obsolete. Use CSS instead.
Attribute “wight” not allowed on element “td” at this point.
Attribute “valign” not allowed on element “img” at this point.
Attribute “height” not allowed on element “table” at this point.
Start tag “form” seen in “table”.
Element “form” not allowed as child of element “table” in this context. (Suppressing further errors from this subtree.)
Start tag “input” seen in “table”.
Element “input” not allowed as child of element “tbody” in this context. (Suppressing further errors from this subtree.)
Stray end tag “form”.
End tag “td” seen, but there were open elements.
Unclosed element “a”.
Bad value “100%” for attribute “height” on element “iframe”: Expected a digit but saw “%” instead.
The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “valign” attribute on the “td” element is obsolete. Use CSS instead.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
Duplicate ID “flash”.
Duplicate ID “contentBanner”.
Attribute “width” not allowed on element “div” at this point.
Element “input” is missing required attribute “alt”.
Bad value “180px” for attribute “height” on element “embed”: Expected a digit but saw “p” instead.
Bad value “170px” for attribute “width” on element “embed”: Expected a digit but saw “p” instead.
Stray end tag “embed”.
A “charset” attribute on a “meta” element found after the first 1024 bytes.
Attribute “charset” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “content”, “itemprop”, “property”.
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.
“"” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Bad value “100%"” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
Element “img” is missing required attribute “src”.
Stray end tag “img”.
Attribute “bordercolor” not allowed on element “table” at this point.
The “bgcolor” attribute on the “table” element is obsolete. Use CSS instead.
Attribute “height” not allowed on element “tr” at this point.
Element “input” not allowed as child of element “table” in this context. (Suppressing further errors from this subtree.)
The “bgcolor” attribute on the “td” element is obsolete. Use CSS instead.
The “align” attribute on the “td” element is obsolete. Use CSS instead.
Bad value “prettyPhoto” for attribute “rel” on element “a”: The string “prettyPhoto” is not a registered keyword.
Unclosed element “div”.
Bad value “http://” for attribute “href” on element “a”: Invalid host: empty host.
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
Duplicate ID “small-box-1”.
Duplicate ID “small-box-2”.
Duplicate ID “small-box-3”.
Duplicate ID “small-box-4”.
Duplicate ID “small-box-5”.
Duplicate ID “small-box-6”.
Duplicate ID “small-box-7”.
Warnings:
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The first occurrence of ID “frequenzen” was here.
Attribute “"” is not serializable as XML 1.0.
A table row was 1 columns wide, which is less than the column count established by the first row (3).
A table row was 1 columns wide, which is less than the column count established by the first row (2).
A table row was 2 columns wide and exceeded the column count established by the first row (1).
The first occurrence of ID “flash” was here.
The first occurrence of ID “contentBanner” was here.
The first occurrence of ID “small-box-1” was here.
The first occurrence of ID “small-box-2” was here.
The first occurrence of ID “small-box-3” was here.
The first occurrence of ID “small-box-4” was here.
The first occurrence of ID “small-box-5” was here.
The first occurrence of ID “small-box-6” was here.
The first occurrence of ID “small-box-7” was here.
This document appears to be written in German. Consider adding “lang="de"” (or variant) to the “html” start tag.
Switzerland CH