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Heading Tags
Heading tags are HTML elements (H1 through H6) that define the hierarchical structure and outline of a web page's content. The H1 tag is the primary heading and most important for SEO, typically containing the target keyword. H2–H6 tags organize subsections, helping both users and search engine crawlers understand content structure.
Heading tag implementation is audited using Screaming Frog's "H1" and "H2" report tabs, SEMrush Site Audit, and Ahrefs Site Audit. On-page SEO best practices — such as including target keywords in H1 and related terms in H2–H3 tags — are validated against content guidelines from Moz and SEMrush.
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Related Terms
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Alt Text
The alt text tag helps search engine bots to make sense of a given image. Alt text tags are visible to both visitors and engine bots.
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Meta Description Tag
Refers to a tag that provides information to users about the relevant web page on the results pages.
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On Page SEO
All actions taken to comply with Google criteria and improve the performance of a website on search engine results pages are called On-Page SEO activities.
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Title Tag
Refers to a tag that specifies the title of a web page.