Last updated · 2026-09-23

Data requests

How to ask for access to, correction of or deletion of personal data, and what happens after you ask.

First: who holds your data

Businesses use Stelafy to measure their ads. If you filled in a form for one of those businesses, that business decides what happens to your data — it is the controller and we are its processor. Send your request to that business first. If you write to us, we pass the request to them and help them answer it.

If you have an account on the service yourself, or you contacted us directly, we hold that data as the controller and you can write to us.

What you can ask for

Which of these apply depends on where you live; the privacy policy explains them by region.

Access: a copy of the personal data held about you.
Correction: inaccurate or incomplete data put right.
Deletion: your data erased, where the law allows.
Restriction and objection: certain processing limited or stopped.
Portability: your data in a structured, machine-readable file, prepared on request.
Opt out of sale or sharing: we do not sell personal information, and we do not share it for cross-context behavioural advertising for our own purposes.

How to make a request

Write to the business that holds your data, and include:

Your full name.
The email address or phone number the data is linked to.
What you are asking for, and, if it concerns a business, which one.

Verification and timing

We check your identity before acting, and may ask for more information to do so. An authorised agent may act for you; we verify both of you.
EEA, UK and Switzerland: we answer within one month, extendable where a request is complex — we tell you if we extend.
US states: we answer within 45 days, extendable by another 45 where reasonably necessary — we tell you if we extend.

When we may refuse or limit a request

If we refuse, we tell you why and how to complain.

When we cannot verify who you are.
When answering would affect someone else's rights.
When the law requires us to keep the data, or the request is clearly unfounded or excessive.