Similarweb
Competitive-intelligence first, SEO second — the best competitor-traffic and AI-referral data here, with an official MCP server, behind quote-only pricing.
How we testSimilarweb's strength is modelled traffic intelligence: who gets how much traffic from where, now extended to AI Brand Visibility (mentions, citations and sentiment in ChatGPT, Gemini, Google AI Mode and Perplexity) and AI-referral attribution from Claude, Copilot, Grok and DeepSeek. Keyword research and rank tracking are included, backlink data is thin, and site audit sits in higher packages. A REST API is available on API, Business and Enterprise plans, and an official hosted MCP server (21 tools, September 2025) uses the same credits.
The catch is commercial: the pricing page is quote-only for Business and Enterprise, third-party figures put self-serve plans at roughly $149–649 a month (unconfirmed), and estimates are unreliable for small UK/EU sites. Trustpilot is a solid 4.4/5 on 749 reviews, with surprise post-trial charges the recurring complaint.
Pros
- +Best competitor-traffic and AI-referral attribution
- +Official MCP server
- +Broadest AI-engine coverage among the suites; 4.4 Trustpilot
Cons
- −Opaque, quote-led pricing
- −Traffic estimates weak for low-traffic UK/EU sites
- −Surprise post-trial charges are the top complaint
Pricing
Minimum commitment: $1,500 — $125/mo × 1 seat × 12 months. The least you can spend before walking away; excludes numbers, minutes and add-ons.
Starter (third-party figure)
$149/mo · month-to-month
$125/mo on an annual commitment
Month-to-month costs 19% more
- ✓UNCONFIRMED — vendor page is quote-only
Professional (third-party figure)
$399/mo · month-to-month
$333/mo on an annual commitment
Month-to-month costs 20% more
- ✓UNCONFIRMED
Specifications
| Rating | 3.5 |
| Month-to-month (entry plan) | $149/mo |
| Annual commit, per month | $125/mo |
| Monthly premium | 19% |
| Minimum commitment* | $1,500 |
| Site audit | No |
| AI engines tracked | 4 |
| API included | No |
| MCP server | ✓ |
| Trustpilot (reviews) | 4.4 (749) |
| AI engines (list) | ChatGPT, Gemini, Google AI Mode +1 |
| Commitment for annual rate (months) | 12 |
*How we calculate minimum commitment. Headline per-user prices hide the real cost of trying a platform. Total cost of ownership is licence × seats × term, plus usage, add-ons, setup fees and any early-exit charges. Our "minimum commitment" figure is the floor of that: the entry plan's committed rate × the minimum seats the vendor will sell × the months you must commit to (one month at the month-to-month rate where there is no commitment; the licence price where it is sold per year). It deliberately excludes usage, add-ons and prerequisite licences, so your real first bill will be higher — but never lower than this.
Researched and drafted with AI assistance; reviewed and approved by Tim Meredith. How we use AI