New features, improvements and updates all in one place so you can make the most out of SE RankingĮverything you need to know about on-page SEO in 2023 and beyondĬheck out our list of top-performing SEO agencies by organic traffic and analyze their digital performanceīoost your link building strategy by putting this guide's best practices to work See standard metadata names for details about the set of standard metadata names defined in the HTML specification.Read our comprehensive guides, case studies, interviews with experts and moreĭiscover a collection of videos on burning SEO topics featuring industry expertsīroaden your SEO expertise by joining online courses created by seasoned SEO specialists The name and content attributes can be used together to provide document metadata in terms of name-value pairs, with the name attribute giving the metadata name, and the content attribute giving the value. Understanding Success Criterion 3.2.5 | W3C Understanding WCAG 2.0.Understanding Success Criterion 2.2.4 | W3C Understanding WCAG 2.0.Understanding Success Criterion 2.2.1 | W3C Understanding WCAG 2.0.MDN Understanding WCAG, Guideline 3.1 explanations.MDN Understanding WCAG, Guideline 2.1 explanations.The abrupt, unannounced updating of the page content may also be disorienting for people experiencing low vision conditions. People navigating with the aid of assistive technology such as a screen reader may be unable to read through and understand the page's content before being automatically redirected. Pages set with a refresh value run the risk of having the time interval being too short. The number of seconds until the page should redirect to another - only if the content attribute contains a non-negative integer followed by the string ' url=', and a valid URL.The number of seconds until the page should be reloaded - only if the content attribute contains a non-negative integer.User agents are required to ignore this pragma. If specified, the content attribute must have the value " IE=edge". Sets the name of the default CSS style sheet set. Note: Can only be used in documents served with a text/html - not in documents served with an XML MIME type. This is equivalent to a element with the charset attribute specified and carries the same restriction on placement within the document. The content attribute must have the value " text/html charset=utf-8" if specified. Content policies mostly specify allowed server origins and script endpoints which help guard against cross-site scripting attacks.ĭeclares the MIME type and the document's character encoding. The attribute is named http-equiv(alent) because all the allowed values are names of particular HTTP headers:Īllows page authors to define a content policy for the current page. This attribute contains the value for the http-equiv or name attribute, depending on which is used. elements which declare a character encoding must be located entirely within the first 1024 bytes of the document. If the attribute is present, its value must be an ASCII case-insensitive match for the string " utf-8", because UTF-8 is the only valid encoding for HTML5 documents. This attribute declares the document's character encoding. Note: the attribute name has a specific meaning for the element, and the itemprop attribute must not be set on the same element that has any existing name, http-equiv or charset attributes. If the itemprop attribute is set, the element provides user-defined metadata.If the charset attribute is set, the element is a charset declaration, giving the character encoding in which the document is encoded.If the http-equiv attribute is set, the element is a pragma directive, providing information equivalent to what can be given by a similarly-named HTTP header.If the name attribute is set, the element provides document-level metadata, applying to the whole page.The type of metadata provided by the element can be one of the following: If the itemprop attribute is present:Īs it is a void element, the start tag must be present and the end tagĮncoding declaration, it can also be inside a The HTML element represents metadata that cannot be represented by other HTML meta-related elements, like, ,, or. Allowing cross-origin use of images and canvas.HTML table advanced features and accessibility.From object to iframe - other embedding technologies.Assessment: Structuring a page of content.
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