Errors:
The encoding “shift-jis” is not the preferred name of the character encoding in use. The preferred name is “shift_jis”. (Charmod C024)
Legacy encoding “shift_jis” used. Documents must use UTF-8.
Legacy doctype. Expected “<!DOCTYPE html>”.
Bad value “//www.w3.org/1999/xhtml” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
Bad value “text/html; charset=Shift_JIS” for attribute “content” on element “meta”: “charset=” must be followed by “utf-8”.
Bad value “Pragma” for attribute “http-equiv” on element “meta”.
Bad value “Cache-Control” for attribute “http-equiv” on element “meta”.
Bad value “Expires” for attribute “http-equiv” on element “meta”.
Duplicate ID “nav_g03”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).
Element “dl” is missing a required instance of child element “dd”.
Bad value “http:////www.elecom.cn/” for attribute “href” on element “a”: Unexpected slash or backslash.
Bad value “http:////www.elecom.co.kr/” for attribute “href” on element “a”: Unexpected slash or backslash.
Warnings:
Attribute “xmlns” is not serializable as XML 1.0.
Consider avoiding viewport values that prevent users from resizing documents.
The “type” attribute is unnecessary for JavaScript resources.
The first occurrence of ID “nav_g03” was here.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.
Japan JP