Similarweb is a digital intelligence platform best known for website traffic analytics and competitive intelligence, built out with an SEO toolkit — keyword research, rank tracking, backlink analytics, site audit — plus AI-search visibility tracking across engines like ChatGPT, Gemini, and Perplexity. It offers free high-level data on similarweb.com alongside paid packages, with entry-level Competitive Intelligence plans starting at $125/month billed annually ($199/month billed monthly), suiting marketers who want traffic and competitor insight alongside classic SEO metrics.
Who builds it
Similarweb is built and sold by Similarweb Ltd. as a broader web-intelligence and competitive-analysis platform, with SEO as one module inside it rather than the sole focus. Its differentiator is combining traffic and audience data with keyword, rank, and AI-visibility tracking in a single competitive-intelligence lens, so you can see not just what a competitor ranks for but how much traffic that visibility is actually translating into.
Core features
- A Keyword Generator covering 5+ billion keywords, drawn from the biggest search engines, for keyword research and demand analysis.
- Daily keyword and rank data updates — Similarweb updates keyword data daily and refreshes click data every day, so trending terms and ranking shifts surface faster.
- Rank Tracker with SERP-feature visibility, showing which keywords and pages rank inside featured snippets and AI Overviews, and what share of a SERP feature a domain owns.
- AI Brand Visibility / AEO tools, tracking how often a brand appears in AI-generated answers, which topics drive those mentions, and whether the brand is cited as a source.
- API access, available as part of customized Business packages or purchasable as a standalone product without a full platform subscription.
- Free, high-level data available directly on similarweb.com as a sample of the full paid dataset.
Pricing
- Free: a high-level, limited-feature sample of Similarweb's data is available for free on similarweb.com.
- Competitive Intelligence (entry plan): from $125/month billed annually, or $199/month billed monthly — covers website performance, traffic and engagement, demographics, and competitor alerts.
- Higher Business packages add modules like the Gen AI Intel Suite (AI traffic trends, AI brand visibility, top landing pages, prompt analysis) plus API access; pricing for these is customized.
Who it's for
Similarweb fits marketers and competitive-intelligence teams who want traffic and audience data alongside SEO metrics — not just rankings, but who's visiting competitor sites and how. The free tier is useful for quick lookups, while paid Competitive Intelligence and Business packages suit teams that need daily-refreshed keyword and SERP-feature data plus growing AI-answer visibility tracking as part of a broader digital-intelligence workflow. If your main need is pure rank tracking or backlink depth rather than traffic and audience intelligence, it's worth comparing Similarweb's SEO module specifically against a dedicated SEO-only tool before committing to a paid package.