Cookies
Last updated: 29 July 2026
A cookie is a small file a website stores on your device. Some are needed to make a site work at all. Others are optional, and we only use those if you say yes.
Your choice
We use two optional cookies, both set by Meta. They tell us which of our Facebook and Instagram adverts bring people to Tydfy, so we know where to spend our advertising budget. They do not tell us your name or anything about your booking.
You can accept or refuse them, and you can change your mind at any time — use the “Cookie settings” link in the footer, or go to tydfy.co.uk/cookie-consent. Refusing costs you nothing — the site works exactly the same either way. If you refuse after having accepted, we delete the Meta cookies straight away.
Cookies we set
| What it does | Name | Details |
|---|---|---|
| Keeping you signed in | .AspNetCore.Identity.Application |
Necessary 8 hours, extended while you are using the site. |
| Remembering your booking as you go | .Tydfy.BookingWizard |
Necessary Until you close your browser. |
| Security | .AspNetCore.Antiforgery.* |
Necessary Stops another website submitting forms as if it were you. 8 hours. |
| Your cookie choice | tydfy_consent |
Necessary Records whether you accepted or refused. 6 months. |
| Signing in with Google | .AspNetCore.Correlation.* and .AspNetCore.Identity.External |
Necessary Used only during the sign-in handshake. A few minutes. |
| One-off messages | .AspNetCore.Mvc.CookieTempDataProvider |
Necessary Carries a confirmation such as “saved” to the next page. Deleted immediately afterwards. |
| Advertising measurement | _fbp and _fbc |
Optional Set only if you accept. Lets Meta tell us which of our Facebook and Instagram adverts brought someone to Tydfy. About 90 days. |
Cookies set by our payment provider
When you reach a payment page, Stripe sets its own cookies
(__stripe_mid and __stripe_sid) to detect fraud.
These are necessary for taking payment safely and we cannot switch them off.
Their durations are set by Stripe, not by us — see
Stripe's cookie policy.
Who else is involved
If you accept the optional cookie, Meta Platforms Ireland Limited receives information about your visit and may connect it to your Facebook or Instagram account. For that collection, Meta and Tydfy each have responsibilities under data protection law. Our Privacy Policy explains what this means and where your data goes.
Turning cookies off in your browser
You can block or delete cookies in your browser settings. Blocking the necessary ones will stop parts of Tydfy working — you may not be able to sign in or complete a booking.
Questions
Email hello@tydfy.co.uk.
TYDFY LTD · Company No. 17269761 · 128 City Road, London EC1V 2NX, United Kingdom · ICO ZC171837