Similarweb gets the data used to generate the estimations you see on the platform from 4 main sources:
Direct Measurement – millions of websites and apps choose to share their first-party analytics with us.
Contributory Network – a collection of consumer products that aggregate anonymous device behavioral data.
Partnerships – a global network of organizations that collect “digital signals” across the Internet.
Public Data Extraction – an advanced algorithmic engine that captures and indexes public data from billions of websites and apps.
For a deep dive into our data methodology, visit Similarweb Data Methodology.