Errors:
Bad value “Cache-Control” for attribute “http-equiv” on element “meta”.
Bad value “expires” for attribute “http-equiv” on element “meta”.
“"” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Bad value “previewimage” for attribute “rel” on element “link”: The string “previewimage” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Attribute “accept” not allowed on element “form” at this point.
Attribute “vat” not allowed on element “option” at this point.
Bad value “0” for attribute “prefix” on element “option”.
Bad value “CZ” for attribute “prefix” on element “option”.
Bad value “SK” for attribute “prefix” on element “option”.
Bad value “AL” for attribute “prefix” on element “option”.
Bad value “DZ” for attribute “prefix” on element “option”.
Bad value “AS” for attribute “prefix” on element “option”.
Bad value “AD” for attribute “prefix” on element “option”.
Bad value “AI” for attribute “prefix” on element “option”.
Bad value “AG” for attribute “prefix” on element “option”.
Bad value “AR” for attribute “prefix” on element “option”.
Bad value “AM” for attribute “prefix” on element “option”.
Bad value “AW” for attribute “prefix” on element “option”.
Bad value “AU” for attribute “prefix” on element “option”.
Bad value “AZ” for attribute “prefix” on element “option”.
Bad value “BS” for attribute “prefix” on element “option”.
Bad value “BH” for attribute “prefix” on element “option”.
Bad value “BD” for attribute “prefix” on element “option”.
Bad value “BB” for attribute “prefix” on element “option”.
Bad value “BE” for attribute “prefix” on element “option”.
Bad value “BZ” for attribute “prefix” on element “option”.
Bad value “BJ” for attribute “prefix” on element “option”.
Bad value “BT” for attribute “prefix” on element “option”.
Bad value “BO” for attribute “prefix” on element “option”.
Bad value “BA” for attribute “prefix” on element “option”.
Bad value “BW” for attribute “prefix” on element “option”.
Bad value “BR” for attribute “prefix” on element “option”.
Bad value “BN” for attribute “prefix” on element “option”.
Bad value “BG” for attribute “prefix” on element “option”.
Bad value “BF” for attribute “prefix” on element “option”.
Bad value “BI” for attribute “prefix” on element “option”.
Bad value “BY” for attribute “prefix” on element “option”.
Bad value “HR” for attribute “prefix” on element “option”.
Bad value “KM” for attribute “prefix” on element “option”.
Bad value “CK” for attribute “prefix” on element “option”.
Bad value “XC” for attribute “prefix” on element “option”.
Bad value “DM” for attribute “prefix” on element “option”.
Bad value “DO” for attribute “prefix” on element “option”.
Bad value “DK” for attribute “prefix” on element “option”.
Bad value “DJ” for attribute “prefix” on element “option”.
Bad value “EG” for attribute “prefix” on element “option”.
Bad value “EC” for attribute “prefix” on element “option”.
Bad value “ER” for attribute “prefix” on element “option”.
Bad value “EE” for attribute “prefix” on element “option”.
Bad value “ET” for attribute “prefix” on element “option”.
Bad value “FK” for attribute “prefix” on element “option”.
Bad value “FJ” for attribute “prefix” on element “option”.
Bad value “PH” for attribute “prefix” on element “option”.
Bad value “FI” for attribute “prefix” on element “option”.
Bad value “FR” for attribute “prefix” on element “option”.
Bad value “GF” for attribute “prefix” on element “option”.
Bad value “PF” for attribute “prefix” on element “option”.
Bad value “GA” for attribute “prefix” on element “option”.
Bad value “GM” for attribute “prefix” on element “option”.
Bad value “GH” for attribute “prefix” on element “option”.
Bad value “GI” for attribute “prefix” on element “option”.
Bad value “GD” for attribute “prefix” on element “option”.
Bad value “GP” for attribute “prefix” on element “option”.
Bad value “GU” for attribute “prefix” on element “option”.
Bad value “GT” for attribute “prefix” on element “option”.
Bad value “GN” for attribute “prefix” on element “option”.
Bad value “GW” for attribute “prefix” on element “option”.
Bad value “GY” for attribute “prefix” on element “option”.
Bad value “HT” for attribute “prefix” on element “option”.
Bad value “HN” for attribute “prefix” on element “option”.
Bad value “HK” for attribute “prefix” on element “option”.
Bad value “IN” for attribute “prefix” on element “option”.
Bad value “ID” for attribute “prefix” on element “option”.
Bad value “IE” for attribute “prefix” on element “option”.
Bad value “IQ” for attribute “prefix” on element “option”.
Bad value “IS” for attribute “prefix” on element “option”.
Bad value “IT” for attribute “prefix” on element “option”.
Bad value “IL” for attribute “prefix” on element “option”.
Bad value “JM” for attribute “prefix” on element “option”.
Bad value “JP” for attribute “prefix” on element “option”.
Bad value “YE” for attribute “prefix” on element “option”.
Bad value “KR” for attribute “prefix” on element “option”.
Bad value “JO” for attribute “prefix” on element “option”.
Bad value “KY” for attribute “prefix” on element “option”.
Bad value “KH” for attribute “prefix” on element “option”.
Bad value “CM” for attribute “prefix” on element “option”.
Bad value “CA” for attribute “prefix” on element “option”.
Bad value “CV” for attribute “prefix” on element “option”.
Bad value “QA” for attribute “prefix” on element “option”.
Bad value “KZ” for attribute “prefix” on element “option”.
Bad value “KE” for attribute “prefix” on element “option”.
Bad value “KI” for attribute “prefix” on element “option”.
Bad value “CO” for attribute “prefix” on element “option”.
Bad value “CG” for attribute “prefix” on element “option”.
Bad value “CD” for attribute “prefix” on element “option”.
Bad value “KO” for attribute “prefix” on element “option”.
Bad value “CR” for attribute “prefix” on element “option”.
Bad value “KW” for attribute “prefix” on element “option”.
Bad value “CY” for attribute “prefix” on element “option”.
Bad value “CP” for attribute “prefix” on element “option”.
Bad value “KG” for attribute “prefix” on element “option”.
Bad value “LA” for attribute “prefix” on element “option”.
Bad value “LB” for attribute “prefix” on element “option”.
Bad value “LY” for attribute “prefix” on element “option”.
Bad value “LR” for attribute “prefix” on element “option”.
Bad value “LI” for attribute “prefix” on element “option”.
Bad value “LT” for attribute “prefix” on element “option”.
Bad value “LV” for attribute “prefix” on element “option”.
Bad value “LU” for attribute “prefix” on element “option”.
Bad value “MO” for attribute “prefix” on element “option”.
Bad value “MG” for attribute “prefix” on element “option”.
Bad value “MK” for attribute “prefix” on element “option”.
Bad value “MY” for attribute “prefix” on element “option”.
Bad value “MW” for attribute “prefix” on element “option”.
Bad value “MV” for attribute “prefix” on element “option”.
Bad value “ML” for attribute “prefix” on element “option”.
Bad value “MT” for attribute “prefix” on element “option”.
Bad value “MA” for attribute “prefix” on element “option”.
Bad value “MQ” for attribute “prefix” on element “option”.
Bad value “MH” for attribute “prefix” on element “option”.
Bad value “MR” for attribute “prefix” on element “option”.
Bad value “MU” for attribute “prefix” on element “option”.
Bad value “HU” for attribute “prefix” on element “option”.
Bad value “MX” for attribute “prefix” on element “option”.
Bad value “MD” for attribute “prefix” on element “option”.
Bad value “MC” for attribute “prefix” on element “option”.
Bad value “MN” for attribute “prefix” on element “option”.
Bad value “MS” for attribute “prefix” on element “option”.
Bad value “MZ” for attribute “prefix” on element “option”.
Bad value “NP” for attribute “prefix” on element “option”.
Bad value “NE” for attribute “prefix” on element “option”.
Bad value “NG” for attribute “prefix” on element “option”.
Bad value “NI” for attribute “prefix” on element “option”.
Bad value “NU” for attribute “prefix” on element “option”.
Bad value “NL” for attribute “prefix” on element “option”.
Bad value “NO” for attribute “prefix” on element “option”.
Bad value “NC” for attribute “prefix” on element “option”.
Bad value “NZ” for attribute “prefix” on element “option”.
Bad value “DE” for attribute “prefix” on element “option”.
Bad value “OM” for attribute “prefix” on element “option”.
Bad value “PS” for attribute “prefix” on element “option”.
Bad value “PA” for attribute “prefix” on element “option”.
Bad value “VG” for attribute “prefix” on element “option”.
Bad value “PG” for attribute “prefix” on element “option”.
Bad value “PY” for attribute “prefix” on element “option”.
Bad value “PE” for attribute “prefix” on element “option”.
Bad value “CI” for attribute “prefix” on element “option”.
Bad value “PL” for attribute “prefix” on element “option”.
Bad value “PR” for attribute “prefix” on element “option”.
Bad value “PT” for attribute “prefix” on element “option”.
Bad value “PK” for attribute “prefix” on element “option”.
Bad value “AT” for attribute “prefix” on element “option”.
Bad value “GQ” for attribute “prefix” on element “option”.
Bad value “RO” for attribute “prefix” on element “option”.
Bad value “RU” for attribute “prefix” on element “option”.
Bad value “RW” for attribute “prefix” on element “option”.
Bad value “RE” for attribute “prefix” on element “option”.
Bad value “KN” for attribute “prefix” on element “option”.
Bad value “LC” for attribute “prefix” on element “option”.
Bad value “XM” for attribute “prefix” on element “option”.
Bad value “SW” for attribute “prefix” on element “option”.
Bad value “ST” for attribute “prefix” on element “option”.
Bad value “VC” for attribute “prefix” on element “option”.
Bad value “SV” for attribute “prefix” on element “option”.
Bad value “WS” for attribute “prefix” on element “option”.
Bad value “SA” for attribute “prefix” on element “option”.
Bad value “SN” for attribute “prefix” on element “option”.
Bad value “MP” for attribute “prefix” on element “option”.
Bad value “SC” for attribute “prefix” on element “option”.
Bad value “SL” for attribute “prefix” on element “option”.
Bad value “SG” for attribute “prefix” on element “option”.
Bad value “SI” for attribute “prefix” on element “option”.
Bad value “AE” for attribute “prefix” on element “option”.
Bad value “US” for attribute “prefix” on element “option”.
Bad value “CS” for attribute “prefix” on element “option”.
Bad value “LK” for attribute “prefix” on element “option”.
Bad value “CF” for attribute “prefix” on element “option”.
Bad value “SD” for attribute “prefix” on element “option”.
Bad value “SR” for attribute “prefix” on element “option”.
Bad value “SY” for attribute “prefix” on element “option”.
Bad value “TJ” for attribute “prefix” on element “option”.
Bad value “TW” for attribute “prefix” on element “option”.
Bad value “TZ” for attribute “prefix” on element “option”.
Bad value “TH” for attribute “prefix” on element “option”.
Bad value “TG” for attribute “prefix” on element “option”.
Bad value “TO” for attribute “prefix” on element “option”.
Bad value “TT” for attribute “prefix” on element “option”.
Bad value “TR” for attribute “prefix” on element “option”.
Bad value “TN” for attribute “prefix” on element “option”.
Bad value “TC” for attribute “prefix” on element “option”.
Bad value “TV” for attribute “prefix” on element “option”.
Bad value “UG” for attribute “prefix” on element “option”.
Bad value “UA” for attribute “prefix” on element “option”.
Bad value “UY” for attribute “prefix” on element “option”.
Bad value “UZ” for attribute “prefix” on element “option”.
Bad value “VU” for attribute “prefix” on element “option”.
Bad value “GB” for attribute “prefix” on element “option”.
Bad value “VE” for attribute “prefix” on element “option”.
Bad value “VN” for attribute “prefix” on element “option”.
Bad value “TL” for attribute “prefix” on element “option”.
Bad value “ZM” for attribute “prefix” on element “option”.
Bad value “ZW” for attribute “prefix” on element “option”.
Bad value “TD” for attribute “prefix” on element “option”.
Bad value “CL” for attribute “prefix” on element “option”.
Bad value “CN” for attribute “prefix” on element “option”.
Bad value “EL” for attribute “prefix” on element “option”.
Bad value “SB” for attribute “prefix” on element “option”.
Bad value “ES” for attribute “prefix” on element “option”.
Bad value “SE” for attribute “prefix” on element “option”.
Bad value “CH” for attribute “prefix” on element “option”.
Too many messages.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The “navigation” role is unnecessary for element “nav”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.