Errors:
Malformed byte sequence: “f3”.
Malformed byte sequence: “f1”.
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Internal encoding declaration “iso-8859-1” disagrees with the actual encoding of the document (“utf-8”).
Bad value “text/html; charset=iso-8859-1” for attribute “content” on element “meta”: “iso-8859-1” is not a preferred encoding name. The preferred label for this encoding is “windows-1252”.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “{” instead.
Bad start tag in “img” in “head”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “noscript”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
No space between attributes.
Malformed byte sequence: “e1”.
Attribute “alt” not allowed on element “a” at this point.
Malformed byte sequence: “bf”.
Malformed byte sequence: “a1”.
Element “ul” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Malformed byte sequence: “e9”.
Malformed byte sequence: “ed”.
Bad value “/catalogo/Product-T�cnicas-avanzadas-para-programadores-JavaScript_206.aspx” for attribute “href” on element “a”: Illegal character in path segment: “�” is not allowed.
Bad value “/catalogo/Product-Programaci�n-avanzada-con-JavaScript-y-ECMAScript_206.aspx” for attribute “href” on element “a”: Illegal character in path segment: “�” is not allowed.
Bad value “/catalogo/Product-Desarrollo-de-aplicaciones-m�viles-para-iPhone-y-Android-con-Xamarin_160.aspx” for attribute “href” on element “a”: Illegal character in path segment: “�” is not allowed.
Malformed byte sequence: “c1”.
Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).
Malformed byte sequence: “c9”.
Malformed byte sequence: “fa”.
Character reference was not terminated by a semicolon.
Attribute “disable-output-escaping” not allowed on element “a” at this point.
Malformed byte sequence: “bb”.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “l” instead.
Bad value “/catalogo/Product-Creaci�n-profesional-de-p�ginas-web-con-HTML5-y-CSS3_185.aspx” for attribute “href” on element “a”: Illegal character in path segment: “�” is not allowed.
Bad value “/catalogo/Product-Fundamentos-de-Programaci�n-con-C-y-la-plataforma-.NET_204.aspx” for attribute “href” on element “a”: Illegal character in path segment: “�” is not allowed.
Bad value “/catalogo/Product-Certificaci�n-oficial-70-483-Programaci�n-en-C-y-la-Plataforma-.NET_222.aspx” for attribute “href” on element “a”: Illegal character in path segment: “�” is not allowed.
Bad value “/catalogo/Product-Programaci�n-de-aplicaciones-nativas-para-iPhone-y-iPad-(Apple-iOS)_193.aspx” for attribute “href” on element “a”: Illegal character in path segment: “�” is not allowed.
Bad value “/catalogo/Product-SQL-Server-pr�ctico-para-desarrolladores_165.aspx” for attribute “href” on element “a”: Illegal character in path segment: “�” is not allowed.
Stray end tag “div”.
Bad value “catalogo/#.Programaci�n-Web” for attribute “href” on element “a”: Illegal character in fragment: “�” is not allowed.
Bad value “catalogo/#.Ex�menes-Oficiales” for attribute “href” on element “a”: Illegal character in fragment: “�” is not allowed.
Bad value “catalogo/#.Desarrollo-M�vil” for attribute “href” on element “a”: Illegal character in fragment: “�” is not allowed.
Bad value “noindex nofollow” for attribute “rel” on element “a”: The string “noindex” is not a registered keyword.
Warnings:
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
This document appears to be written in Spanish. Consider adding “lang="es"” (or variant) to the “html” start tag.
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