Founder of a listed tool

Or Offer

Co-founder and CEO, named behind the Similarweb listing on Anchor Terminal.

Or Offer

Co-founder and CEO

Or Offer co-founded Similarweb and has been its CEO since its founding in 2007, growing it from a small Israeli startup into a global business with more than 850 employees and nine offices. He was earlier a founding partner at AfterDownload, later acquired by IronSource, and invests in startups.

What Or builds

  • Similarweb D · SEO & search visibility

    Similarweb estimates website and app traffic from panel and other data sources. Its REST and Batch APIs and a hosted MCP server return visits, engagement, traffic channels, keywords and SERP data for a domain, under a paid subscription.

    Co-founder and CEO, researched 27 October 2026 · the people behind it

Works with

Questions

Who is Or Offer?

Or Offer co-founded Similarweb and has been its CEO since its founding in 2007, growing it from a small Israeli startup into a global business with more than 850 employees and nine offices. He was earlier a founding partner at AfterDownload, later acquired by IronSource, and invests in startups.

What does Similarweb Ltd. make?

Anchor Terminal lists Similarweb from Similarweb Ltd.. Similarweb estimates website and app traffic from panel and other data sources. Its REST and Batch APIs and a hosted MCP server return visits, engagement, traffic channels, keywords and SERP data for a domain, under a paid subscription.

How are Or's tools graded?

Similarweb is graded D, 46.2 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.

Sources (8)

These are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched. They don't work for Anchor Terminal (our own team is on the about page). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.

For companies

Do agents find, use and choose your tools?

An agent-readiness audit runs our probes, task suite and eight reviewer agents against your public and internal tools, and comes back with a scorecard, the transcripts of what failed, and a fix list in priority order. From $2,500, re-run included. We never take payment to move a rank. We do help companies earn one.