| name | similarweb-free-market |
| description | Web market / industry analysis from a SimilarWeb FREE account: list 200+ industry categories and rank the top + rising websites in any industry by traffic share, visits, engagement, and month-over-month change. |
similarweb-free-market
Industry/market analysis available to a free / expired-trial SimilarWeb account. This is the free-tier counterpart of similarweb-market (which needs a SimilarWeb Pro plan).
What the free tier gives you:
- The last 3 complete months of data, worldwide.
- The combined "All traffic" channel only — per-channel industry rankings
(Search, Social, Display, Referral, Direct, Email, Gen AI, Affiliates) are
crown-locked behind a paid plan.
Prerequisites
- Node.js 22+
- Chrome with remote debugging (only for
auth)
- chrome-cdp skill (only for
auth)
- A SimilarWeb account (free is fine), logged in at pro.similarweb.com
Setup
Open SimilarWeb in Chrome and log in, then run:
node similarweb-free-market.mjs auth
Usage
node similarweb-free-market.mjs industries
node similarweb-free-market.mjs industries music
node similarweb-free-market.mjs industries shopping
node similarweb-free-market.mjs leaders Arts_and_Entertainment
node similarweb-free-market.mjs leaders Arts_and_Entertainment/Music
node similarweb-free-market.mjs leaders E-commerce_and_Shopping --count=50
Commands
| Command | API endpoint | Returns |
|---|
auth | CDP cookie extraction | Saves session cookies |
industries [search] | /api/categories | All industry categories (top-level + subcategories), optionally substring-filtered |
leaders <industry> | /api/Market/Leaders/Table | Per website: global & category rank, market share, avg monthly visits, unique visitors, bounce rate, pages/visit, visit duration, MoM change, desktop/mobile split. Includes topPlayers and risingPlayers. |
Industry keys are the industry values returned by the industries command —
either a top-level name (Arts_and_Entertainment) or Parent/Sub
(Arts_and_Entertainment/Music).
Data storage
~/.local/share/showrun/data/similarweb-free-market/
session.json # Auth cookies
cache/
industries.json
Arts_and_Entertainment_Music-leaders.json
Session expiry
SimilarWeb sessions last days to weeks. On 401/403 errors, re-run
node similarweb-free-market.mjs auth with an active SimilarWeb tab open in Chrome.