Key Features
Keyword Research
The most comprehensive keyword database — search volume, difficulty, intent and SERP features for any keyword.
Backlink Analysis
200B+ backlink index — competitor backlink profiles, new and lost links and toxic link identification.
Site Audit
Technical SEO crawler with 130+ checks — identifies and prioritises every technical issue on your site.
Competitor Intelligence
See any competitor's organic traffic, top pages, ad spend and keyword rankings.
Content Marketing
SEO Writing Assistant, Topic Research and ContentShake AI — plan and optimise content from one platform.
Social Media
Schedule, publish and analyse social media posts — social media management alongside SEO.
Pros & Cons
What we like
Most comprehensive data of any SEO platform
130+ site audit checks — most thorough technical SEO tool
Competitor intelligence is unmatched in depth
Content tools integrated alongside SEO data
Social media management included — fewer tools needed
Free plan allows evaluation of core features
Watch out for
Most expensive SEO tool — $139/mo for Pro
Daily project limits on lower plans
Ahrefs has more accurate backlink data for link building
Learning curve — many features to master
Best Alternatives
Ahrefs
More accurate backlink index — preferred for link building and backlink analysis
Moz Pro
More affordable with Domain Authority metric — better for smaller budgets
Surfer SEO
Better for content optimisation — pair with Semrush for research
Mangools
More affordable keyword and backlink tools — good Semrush alternative
Frequently Asked Questions
Semrush has a free plan with 10 keyword searches per day and limited project access. Paid plans start at $139/month for the Pro plan with full access to all tools. Annual billing saves approximately 17%.
Both are industry-leading SEO platforms. Semrush has more marketing tools beyond SEO (social media, content, PPC) and better site audit features. Ahrefs has more accurate backlink data and is generally preferred for link building and backlink analysis. Most enterprise SEO teams have access to both — Semrush for marketing intelligence, Ahrefs for link building.