Errors:
Obsolete doctype. Expected “<!DOCTYPE html>”.
Bad value “” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted 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 numeric character reference expanded to carriage return.
Bad value “” for attribute “id” on element “body”: An ID must not be the empty string.
Bad value “” for attribute “src” on element “iframe”: Must be non-empty.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
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.
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “h33” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “h34” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “h35” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “h37” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The “center” element is obsolete. Use CSS instead.
Duplicate ID “”.
Bad value “” for attribute “id” on element “div”: An ID must not be the empty string.
Element “h36” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Bad value “yes” for attribute “hidden” on element “h2”.
No “p” element in scope but a “p” end tag seen.
Stray end tag “img”.
Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)
Attribute “name” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.
A document must not include more than one “meta” element with a “charset” attribute.
Element “h61” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The “font” element is obsolete. Use CSS instead.
Element “h20” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Element “h19” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
Consider avoiding viewport values that prevent users from resizing documents.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The first occurrence of ID “” was here.
This document appears to be written in Polish. Consider adding “lang="pl"” (or variant) to the “html” start tag.
Poland PL