# Or Offer

> Or Offer is co-founder and CEO. Similarweb on Anchor Terminal, with grades, an about and public profiles.

- Canonical: https://www.anchorterminal.com/people/or-offer/
- Markdown: https://www.anchorterminal.com/people/or-offer/index.md (~850 tokens)
- Slim: https://www.anchorterminal.com/people/or-offer/index.min.md (~580 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/people/or-offer/index.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-10-27

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.

- LinkedIn: https://www.linkedin.com/in/oroffer

## What Or builds

- [Similarweb](https://www.anchorterminal.com/tools/similarweb.md), graded D, 46.2/100, in 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 2026-10-27.

## Works with

- [Benjamin Seror](https://www.anchorterminal.com/people/benjamin-seror/), Chief Product Officer
- [Ron Asher](https://www.anchorterminal.com/people/ron-asher/), Chief Technology Officer

## 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

- https://www.similarweb.com/corp/leadership/
- https://www.linkedin.com/in/oroffer
- https://www.linkedin.com/in/ronasher/
- https://www.linkedin.com/in/benjamin-seror-89a1b33/
- https://www.similarweb.com/
- https://support.similarweb.com/hc/en-us/requests/new?ticket_form_id=17333714317725&action=KnowlegeCenter
- https://www.similarweb.com/corp/contact-us/
- https://support.similarweb.com/

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, /about/#author). 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.

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