Privacy

The short version

• The test runs in your browser against Cloudflare, and measures the traffic between them.
• Cloudflare sees your IP address as the other end of that connection, as any website does.
• We do not send Cloudflare a report of your results, and we do not store your results or your IP address.
• We cannot say what logs Cloudflare itself keeps about the connection — see their privacy policy.

What we store

Nothing that identifies you. There is no account, no login and no database record of your test.

• Your results are held in your browser for the length of your visit and are not sent to us or saved anywhere.
• We do not persist your IP address. Persisting result: no. Persisting IP address: no.
• Our retention: nothing is retained, so there is no period.
• No analytics and no advertising are active on this site. Both are switched off by default in configuration and cannot be enabled by an omission.

What the measurement provider sees

The test works by moving real data between your browser and speed.cloudflare.com. That traffic has to reach them for the measurement to exist at all, so they see your connection as its other end — exactly as every website you visit does.

Below is what we know about their side, and how well we know it. Where we have not verified something, it says so.

• We checked this ourselvesSees your IP address: YesMeasurement traffic necessarily reaches speed.cloudflare.com, so Cloudflare observes the connection as its counterparty — as does any server a browser contacts.
• We checked this ourselvesWe send them a report of your results: NoConfigured with logAimApiUrl and logMeasurementApiUrl set to null. The library would otherwise post results to speed.cloudflare.com/__results by default. Verified on the wire that no such request is made (Spike 0001).
• The vendor documents this; we have not independently verified itPublishes measurement data: NoCloudflare does not publish individual measurements the way M-Lab does. With result reporting disabled we send nothing that could be published. Per their privacy policy; not independently verified.
• We do not knowTheir own retention: Not knownWe have no evidence about whether Cloudflare retains connection or security logs for measurement traffic reaching its edge. Most networks keep some. We make no claim either way, and must not present this as "no data retained".

The thing we will not claim

A lot of sites would take “we store nothing” and present it as though it covered the other end of the connection too. Those are not the same statement. We have verified that we keep nothing, and that we have switched off the optional reporting of your results back to Cloudflare. We have no evidence either wayabout whether Cloudflare keeps connection or security logs for traffic reaching its edge — most networks keep some.

So we do not say they keep nothing. If that matters to you, their privacy policy is the authority on it, not us.

If you would rather not contact a third party at all

You do not have to run our test. Every diagnostic tool here accepts figures you have measured elsewhere, and the package speed check works entirely from numbers you type in. Nothing leaves your device on that route.

Cookies

The site sets no cookies of its own and runs no third-party scripts. If that changes — for analytics or advertising — it will require your consent first, and this page will be updated before it happens rather than after.

Who is responsible, and how to reach us

Circle Utility is a service operated by Prestige Access Limited, a company registered in England and Wales. That company is the data controller for anything described on this page.

Changes

This page is generated from the same privacy configuration the measurement code uses, so it cannot describe behaviour the product does not have. If the behaviour changes, this page changes with it.