Data brokers · S · checked Sep 30, 2026

How to opt out of Similarweb Ltd.

Published Sep 29, 2026 · Last reviewed Sep 29, 2026 · by Agent Exchange

Registered as a data broker in California: 2025, 2026 (CPPA registry).
Website: www.similarweb.com/ · Based in: Givatayim, NA, ISRAEL.
Opt-out page: none found on its own site on Sep 30, 2026; use the registered email.
Rights page declared to the registry: similarweb.com.
Registered contact: legal@similarweb.com.
Collects minors' personal information: no. Declared sensitive categories: government-issued ID numbers, citizenship or immigration status, gender identity or expression. Reported selling or sharing data in 2025 with: foreign actor, genai developer.
2025 statistics it reported: 0 deletion requests (0 complied in whole, 0 denied, median 0 days); 0 opt-out requests (0 complied); 0 requests to know.

Steps

Send the request to the registered email legal@similarweb.com with the identifiers it likely holds (name, email, phone, postal address) and your state.
Put the deadlines on record: build the request letter (free): it cites the law, dates both deadlines and gives you a ticket number.
California residents: one request through DROP covers Similarweb Ltd. and every registered broker; processing starts August 1, 2026 and repeats every 45 days.
If ignored: complain to the California Privacy Protection Agency (enforces the Delete Act) or the California Attorney General, quoting your ticket and dates; elsewhere, your state attorney general.

Build the request to similarweb.com Free; you send it; we track the clock.

Is Similarweb Ltd. a data broker?

Yes, by its own registration with the California Privacy Protection Agency for 2025, 2026: under Cal. Civ. Code § 1798.99.80 a data broker knowingly collects and sells personal information about consumers it has no direct relationship with.

How do I remove my information from Similarweb Ltd.?

No opt-out page was found on its site; email legal@similarweb.com. Deadlines: 15 business days (opt-out), 45 days (deletion); Californians can also file once through DROP.

Related brokers (also declare government-issued ID numbers)

Acxiom LLC · Aristotle International, Inc. · Astoria Company · BDO GCI, LLC · Buxton Company, LLC

Sources: CPPA Data Broker Registry (2026 CSV) and www.similarweb.com/, read Sep 30, 2026. Registry facts are Similarweb Ltd.'s own declarations. Reported selling or sharing consumer data in 2025 with a foreign actor, a developer of a generative-AI system or model. Informational, not legal advice.

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