DA (Domain Authority)
A metric developed by Moz predicting how well a domain will rank in search results on a scale of 1 to 100. While not a Google ranking factor, DA is widely used as a comparative benchmark for evaluating website strength.
DuckDuckGo
A privacy-focused search engine that doesn't track user searches or build personal profiles. DuckDuckGo's growing user base represents an alternative traffic source that values different ranking signals than Google.
MozBar
A browser toolbar extension by Moz that displays SEO metrics — including Domain Authority and Page Authority — directly in search results and on websites. MozBar is widely used for quick competitive analysis while browsing.
PA (Page Authority)
A Moz metric predicting how well a specific page will rank in search results on a scale of 1 to 100. Page Authority considers the page's backlink profile and other factors to estimate its ranking potential.
Spider
Another term for a web crawler — an automated program that systematically browses the web to index content. SEO spiders like Screaming Frog simulate search engine crawling to identify technical issues and optimization opportunities.
URL Rating
An Ahrefs metric measuring the strength of a specific page's backlink profile on a scale of 0 to 100. URL Rating evaluates both the quantity and quality of backlinks pointing to an individual page.
Yandex
Russia's dominant search engine with its own distinct ranking algorithm and webmaster tools. Yandex is relevant for international SEO targeting Russian-speaking markets and uses different ranking factors than Google.
Yoast
A popular WordPress SEO plugin that provides on-page optimization guidance, technical SEO features, and content analysis tools. Yoast SEO helps manage meta tags, sitemaps, schema markup, and readability for WordPress sites.
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