Cookie Policy
Last updated: 23 September 2026
What are cookies?
Cookies are small text files placed on your device when you visit a website. They help the website remember your preferences and understand how you use the service.
Cookies we use
Essential cookies
These are required for the service to function. They cannot be disabled.
| Cookie | Purpose | Duration |
|---|---|---|
| __session | Firebase authentication session | Session |
| __stripe_mid | Stripe payment fraud prevention | 1 year |
| maff_embed | Set only when our calculator is shown inside a partner's website, so it displays correctly there | Session |
| maff_embed_src | Records which partner website the calculator was opened from | Session |
| maff_owner_device | Set only for the site owner, so their own test checks are left out of the site's statistics | 1 year |
Analytics cookies
These help us understand how visitors use our service so we can improve it. They are only set if you accept them on the cookie banner — until then, no analytics cookies are stored and Google Analytics runs in a cookieless, consent-denied mode. IP addresses are anonymised.
| Cookie | Purpose | Duration |
|---|---|---|
| _ga | Google Analytics — distinguishes unique visitors | 2 years |
| _ga_* | Google Analytics 4 — maintains session state | 2 years |
Advertising measurement cookie
Set only when you arrive by clicking one of our Google ads. It is a first-party cookie holding the click reference Google adds to the ad link, so we can tell whether that ad led to a completed check or application. If you run a check, the reference is stored with it, and the reference plus the date of the outcome may be reported to Google Ads. Your name, email address and financial details are never included. No Google Ads script runs on our site.
| Cookie | Purpose | Duration |
|---|---|---|
| maff_gclid / maff_gbraid / maff_wbraid | Google Ads click reference, used to measure whether the ad led to a check or application | 90 days |
Cookies we do not use
We do not use remarketing cookies or third-party advertising scripts. We do not sell cookie data, and we share nothing with advertisers beyond the Google Ads click reference described above.
Managing your cookies
You chose whether to allow analytics cookies when you first visited. You can change or withdraw that choice at any time using the button below — it is as easy to withdraw consent as it was to give it.
You can also control and delete cookies through your browser settings. Disabling essential cookies may prevent the service from functioning correctly. For more information on managing cookies, visit aboutcookies.org.
Questions?
If you have questions about our use of cookies, please contact us at [email protected]. See also our Privacy Policy.
