Errors:
Legacy doctype. Expected “<!DOCTYPE html>”.
Attribute “xmlns:content” not allowed here.
Attribute “xmlns:dc” not allowed here.
Attribute “xmlns:foaf” not allowed here.
Attribute “xmlns:og” not allowed here.
Attribute “xmlns:rdfs” not allowed here.
Attribute “xmlns:sioc” not allowed here.
Attribute “xmlns:sioct” not allowed here.
Attribute “xmlns:skos” not allowed here.
Attribute “xmlns:xsd” not allowed here.
When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.
The “version” attribute on the “html” element is obsolete. You can safely omit it.
The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.
Bad value “http://s7.addthis.com/js/250/addthis_widget.js#async=1#pubid=xa-4da56597458dd70a” for attribute “src” on element “script”: Illegal character in fragment: “#” is not allowed.
Bad value “1” for attribute “rel” on element “a”: The string “1” is not a registered keyword.
Bad value “2” for attribute “rel” on element “a”: The string “2” is not a registered keyword.
Bad value “3” for attribute “rel” on element “a”: The string “3” is not a registered keyword.
Bad value “4” for attribute “rel” on element “a”: The string “4” is not a registered keyword.
Bad value “5” for attribute “rel” on element “a”: The string “5” is not a registered keyword.
Bad value “6” for attribute “rel” on element “a”: The string “6” is not a registered keyword.
Attribute “rel” not allowed on element “div” at this point.
Bad value “No te pierdas estas fechas, sigue nuestras historias en Instagram y se parte de estos conciertos.” for attribute “rel” on element “a”: The string “No” is not a registered keyword.
Bad value “¡Ve ahora el video oficial en Youtube!” for attribute “rel” on element “a”: The string “¡Ve” is not a registered keyword.
Bad value “Disponible en plataformas digitales.” for attribute “rel” on element “a”: The string “Disponible” is not a registered keyword.
Bad value “Adquiere tu playera, sudadera o camiseta del merch oficial de Maná.” for attribute “rel” on element “a”: The string “Adquiere” is not a registered keyword.
Bad value “Da clic y revive cada uno de sus éxitos.” for attribute “rel” on element “a”: The string “Da” is not a registered keyword.
Bad value “Da clic en la imagen y descubre los mejores momentos de la gira.” for attribute “rel” on element “a”: The string “Da” is not a registered keyword.
Bad value “tab-content-1” for attribute “rel” on element “a”: The string “tab-content-1” is not a registered keyword.
Bad value “tab-content-2” for attribute “rel” on element “a”: The string “tab-content-2” is not a registered keyword.
Bad value “tab-content-3” for attribute “rel” on element “a”: The string “tab-content-3” is not a registered keyword.
Attribute “addthis:title” not allowed on element “div” at this point.
Attribute “addthis:url” not allowed on element “div” at this point.
Bad value “shadowbox;width=920;height=518;player=iframe” for attribute “rel” on element “a”: The string “shadowbox;width=920;height=518;player=iframe” is not a registered keyword.
Bad value “tubepress_x_youtube_1113545533” for attribute “rel” on element “a”: The string “tubepress_x_youtube_1113545533” is not a registered keyword.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The element “iframe” must not appear as a descendant of the “a” element.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “shadowbox;width=501;height=330;player=iframe” for attribute “rel” on element “a”: The string “shadowbox;width=501;height=330;player=iframe” is not a registered keyword.
The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.
The “center” element is obsolete. Use CSS instead.
End tag “div” seen, but there were open elements.
Unclosed element “center”.
Stray end tag “center”.
Warnings:
Attribute with the local name “xmlns:content” is not serializable as XML 1.0.
Attribute with the local name “xmlns:dc” is not serializable as XML 1.0.
Attribute with the local name “xmlns:foaf” is not serializable as XML 1.0.
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Attribute with the local name “xmlns:rdfs” is not serializable as XML 1.0.
Attribute with the local name “xmlns:sioc” is not serializable as XML 1.0.
Attribute with the local name “xmlns:sioct” is not serializable as XML 1.0.
Attribute with the local name “xmlns:skos” is not serializable as XML 1.0.
Attribute with the local name “xmlns:xsd” is not serializable as XML 1.0.
Empty heading.
Attribute “addthis:title” is not serializable as XML 1.0.
Attribute “addthis:url” is not serializable as XML 1.0.
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.