Best of

Best SEO tools: 2 options compared

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Our top pick: Semrush. Semrush combines SEO with advertising, content, local and social toolkits, a free plan and a 7-day trial, which suits teams that want one suite.
ToolBest forFree optionStarting price
1. Semrush Our pickmarketers who want SEO plus ads, content and local toolkitsFree plan; 7-day trialFrom $139/mo
Ahrefslink-building and backlink-focused specialistsFree tools availableSee official pricing

How we chose

We looked at data coverage, toolkits, free options and published pricing. Facts come from each vendor’s own public pages; where a price or limit was not shown we say so instead of guessing.

The options in detail

Our pick

Semrush

Best for: marketers who want SEO plus ads, content and local toolkits.

  • 28B keywords and 43T backlinks, per the official site
  • Free plan with 1 demo project
  • Plans cap tracked keywords and websites

Watch out: Extra users cost from $45/mo.

Read the Semrush review
Also consider

Ahrefs

Best for: link-building and backlink-focused specialists.

  • 41.9B keywords tracked, per its site
  • Site Explorer, Rank Tracker, Site Audit and Content Explorer
  • Brand Radar for AI visibility

Watch out: Pricing was not shown on the page we read.

Official site

Verdict

If the points above match your needs, start with Semrush and use its free option or trial to confirm. Choose another option only when a specific limit blocks you.

Go deeper: semrush vs ahrefs · Semrush review · Semrush alternatives

Prices and limits can change; always confirm on the official sites. Last verified: 2026-10-13