
Ahrefs
8.4#7 in seo toolsFrom $29 a monthFree planWebAPI
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Ahrefs suits people working on SEO, including keyword and competitor research, audits, and backlink analysis. Its higher plans add project, tracked-keyword, crawl-credit, and user allowances, while Enterprise includes administration and security controls.
CiteVista suits users who need browser-based basic technical audits or competitor analysis. It also fits people who prefer a free plan or one-time credits that do not expire.