Errors:
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” 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 “Logo/Big” for attribute “id” on element “g”: Not a valid XML 1.0 name.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Duplicate ID “search-input”.
Duplicate ID “Symbols”.
Duplicate ID “Logo/Big”.
Duplicate ID “Page-1”.
Duplicate ID “Fill-2”.
Duplicate ID “Fill-3”.
Duplicate ID “Fill-4”.
Duplicate ID “Fill-5”.
Duplicate ID “Fill-6”.
Duplicate ID “Fill-8”.
Duplicate ID “Fill-10”.
Duplicate ID “Fill-12”.
Duplicate ID “Fill-14”.
Duplicate ID “Fill-16”.
Duplicate ID “Fill-18”.
Duplicate ID “masthead-menus”.
Duplicate ID “menu-item-search”.
Duplicate ID “search”.
Duplicate ID “search-form”.
Element “img” is missing required attribute “src”.
Warnings:
The “banner” role is unnecessary for element “header”.
The first occurrence of ID “search-input” was here.
The first occurrence of ID “Symbols” was here.
The first occurrence of ID “Logo/Big” was here.
The first occurrence of ID “Page-1” was here.
The first occurrence of ID “Fill-2” was here.
The first occurrence of ID “Fill-3” was here.
The first occurrence of ID “Fill-4” was here.
The first occurrence of ID “Fill-5” was here.
The first occurrence of ID “Fill-6” was here.
The first occurrence of ID “Fill-8” was here.
The first occurrence of ID “Fill-10” was here.
The first occurrence of ID “Fill-12” was here.
The first occurrence of ID “Fill-14” was here.
The first occurrence of ID “Fill-16” was here.
The first occurrence of ID “Fill-18” was here.
The first occurrence of ID “masthead-menus” was here.
The first occurrence of ID “menu-item-search” was here.
The first occurrence of ID “search” was here.
The first occurrence of ID “search-form” was here.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “contentinfo” role is unnecessary for element “footer”.
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