Legal
Cookie Policy
Last updated September 2026
Cookies are small files a website stores in your browser. This policy lists the cookies LithoPrime uses, why, and how you choose which ones we may use. It sits alongside our Privacy Policy.
Your choice
When you first visit, we ask whether you accept all cookies or essential cookies only. Nothing optional runs until you answer. Accepting cookies will enhance your experience, but essential only works fine too, and you can change your answer at any time.
01Essential cookies
Always on. The site can't sign you in, keep your account secure or remember your cookie choice without them, so they don't need your consent.
| Cookie | Set by | What it does | Kept for |
|---|---|---|---|
| authjs.session-token | LithoPrime | Keeps you signed in to your account. | 30 days |
| authjs.csrf-token | LithoPrime | Protects sign-in and forms from cross-site request forgery. | Session |
| authjs.callback-url | LithoPrime | Returns you to the page you were on after signing in. | Session |
| lp_consent | LithoPrime | Remembers your cookie choice so we don't ask on every page. | 12 months |
02Analytics cookies
Only with "Accept all". They help us understand which pages are useful and where people get stuck.
| Cookie | Set by | What it does | Kept for |
|---|---|---|---|
| _ga, _ga_* | Google Analytics | Tells visits from different people apart, so we can see how the site is used. | 2 years |
| lp_vid (local storage) | LithoPrime | A random id that lets our own analytics count a returning visitor once rather than as a new one. | Until you clear it or choose Essential only |
If you choose essential only, we still count the pages you view, without storing anything on your device and without identifying you: each visit is counted on its own, and nothing links it to your next one.
03Advertising (retargeting) cookies
Only with "Accept all", and only while we run an ad campaign on that network. They let us show LithoPrime ads to people who have visited our site, on Google, Meta and LinkedIn, and see whether those ads work. The network that sets the cookie also processes the data under its own privacy policy. We don't sell your personal data.
| Cookie | Set by | What it does | Kept for |
|---|---|---|---|
| _gcl_au | Google Ads | Measures our ads and lets us show LithoPrime ads to people who visited the site. | 90 days |
| _fbp | Meta (Facebook, Instagram) | Lets us show LithoPrime ads on Meta's apps to people who visited the site, and measure them. | 90 days |
| li_sugr, bcookie, lidc, UserMatchHistory, AnalyticsSyncHistory | Lets us show LithoPrime ads on LinkedIn to people who visited the site, and measure them. | 1 day to 1 year |
04When you are signed in
While you use your account, we record which pages of the site and your dashboard you open, and for how long, to run and improve LithoPrime (see "Usage data" in our Privacy Policy). This uses your sign-in, not advertising cookies, and your cookie choice still decides whether analytics and advertising cookies are set.
05Changing or withdrawing your choice
Use "Cookie settings" at the bottom of any page. Choosing essential only removes our analytics id and the analytics and advertising cookies set on lithoprime.com straight away. You can also block or delete cookies in your browser settings, though blocking essential cookies will stop sign-in from working.
06Contact
Questions about cookies or your data: privacy@lithoprime.com, our contact form, or a support ticket from your dashboard.