SEO

Moz Pro

Paid

Moz Pro is an SEO software suite developed by Moz for keyword, ranking, link, competitor, and site health analysis. It combines Keyword Explorer, rank tracking, site crawling, on-page recommendations, Link Explorer data, and reporting, while Moz's Domain Authority and related metrics provide comparative indicators rather than Google ranking factors. It is suited to marketers and agencies that want an established, approachable toolkit for recurring SEO campaigns, audits, competitive benchmarking, and client reporting.

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More tools: SEO

Paid

Ahrefs

Ahrefs is a search marketing platform developed by Ahrefs for researching websites, keywords, backlinks, competitors, content, and organic visibility. Its main workflows include Site Explorer, Keywords Explorer, Site Audit, Rank Tracker, Content Explorer, and newer AI visibility features, supported by Ahrefs' own web and search datasets. It is best suited to SEO professionals, content teams, and agencies that need deep competitive research and link analysis alongside ongoing technical audits and ranking monitoring.

SEO

Freemium

SEMrush

Semrush is a digital marketing platform developed by Semrush for SEO, competitive intelligence, content, paid search, social, and AI visibility workflows. Its SEO toolkit covers keyword research, domain and competitor analysis, position tracking, backlink analysis, site audits, on-page recommendations, link building, and reporting, with additional modules extending beyond organic search. It fits in-house teams and agencies that want a broad research and campaign suite rather than separate products for each search marketing discipline.

SEO

Freemium

Screaming Frog

Screaming Frog SEO Spider is a desktop website crawler developed by Screaming Frog for technical SEO auditing. It follows links and collects response codes, titles, metadata, canonicals, directives, headings, structured data, duplicate signals, and other page-level information, with configurable rendering, extraction, integrations, and bulk exports. It is best for SEO specialists and developers diagnosing large sites, migrations, broken links, redirect chains, indexation controls, or template problems that are difficult to spot page by page.

SEO