Errors:
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
A slash was not immediately followed by “>”.
Duplicate ID “css-theme-css”.
Bad value “https://fonts.googleapis.com/css?family=PT+Sans:400,400italic,700,700italic|PT+Sans+Narrow:700,400|Raleway:400,500,600|Roboto:400,500,700,300,300italic,400italic,500italic,700italic” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.
Attribute “alt” not allowed on element “input” at this point.
Attribute “addthis:userid” not allowed on element “a” at this point.
Attribute “addthis:usertype” not allowed on element “a” at this point.
Attribute “addthis:url” not allowed on element “a” at this point.
Bad value “//schema.org/CreativeWork” for attribute “itemtype” on element “article”: The string “//schema.org/CreativeWork” is not an absolute URL.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “/products/e4t--s4t-miniature-optical-kit-encoders--available-in-cprs-up-to-500}/3#689” for attribute “href” on element “a”: Illegal character in path segment: “}” is not allowed.
Bad value “//schema.org/WPSideBar” for attribute “itemtype” on element “aside”: The string “//schema.org/WPSideBar” is not an absolute URL.
The “align” attribute on the “div” element is obsolete. Use CSS instead.
The “align” attribute on the “p” element is obsolete. Use CSS instead.
Malformed byte sequence: “e2”, “80”.
Bad value “http://www.altenergymag.com/article/2017/12/the-trade-show-you-shouldn�t-miss-–-ces/27583” for attribute “href” on element “a”: Illegal character in path segment: “�” is not allowed.
Bad value “//schema.org/WPFooter” for attribute “itemtype” on element “div”: The string “//schema.org/WPFooter” is not an absolute URL.
Bad value “//schema.org/SiteNavigationElement” for attribute “itemtype” on element “nav”: The string “//schema.org/SiteNavigationElement” is not an absolute URL.
Bad value “/images/site icons/bth footer ad with all mags.png” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
The first occurrence of ID “css-theme-css” was here.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The “navigation” role is unnecessary for element “nav”.
The “banner” role is unnecessary for element “header”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Attribute “addthis:userid” is not serializable as XML 1.0.
Attribute “addthis:usertype” is not serializable as XML 1.0.
Attribute “addthis:url” is not serializable as XML 1.0.
The “main” role is unnecessary for element “main”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “complementary” role is unnecessary for element “aside”.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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