One strictly necessary item remembers your choice. Everything else is analytics, and only if you accept.
Last updated 26 September 2026
Cookies
Your choice
Not chosen yet — nothing is collected until you choose.
What each choice means
- Accept: PostHog analytics runs with a cookie and local storage, so visits can be linked and recorded, with everything you type hidden.
- Reject: PostHog counts the visit without cookies or storage. There is no recording, and the only identifier is a code calculated on PostHog’s servers that changes every day.
- Before you choose, nothing is collected or stored.
How the data is used and who handles it is in the privacy notice.
Everything this site stores in your browser
| Name | Type | Purpose | Kept for | Set |
|---|---|---|---|---|
| __ph_opt_in_out_phc_t6rrEspDXb4Ubvy8KdsVCV9YwVyPjAo34Yg9xC3WgEdN | Local storage | Remembers your cookie choice, so the banner does not ask again. | Until you clear it | After you choose |
| ph_phc_t6rrEspDXb4Ubvy8KdsVCV9YwVyPjAo34Yg9xC3WgEdN_posthog | Cookie | PostHog analytics: a random visitor ID and the current session, so the pages of one visit can be linked. | 1 year | Only if you accept |
| ph_phc_t6rrEspDXb4Ubvy8KdsVCV9YwVyPjAo34Yg9xC3WgEdN_posthog_cpm | Cookie | PostHog analytics: notes which of its values are kept in the cookie, so the cookie and local storage stay in step. | 1 year | Only if you accept |
| ph_phc_t6rrEspDXb4Ubvy8KdsVCV9YwVyPjAo34Yg9xC3WgEdN_posthog | Local storage | PostHog analytics: the same IDs, plus PostHog’s settings for this site. | Until you clear it | Only if you accept |
| ph_phc_t6rrEspDXb4Ubvy8KdsVCV9YwVyPjAo34Yg9xC3WgEdN_posthog__flags | Local storage | PostHog’s feature settings for this site. Holds nothing about you. | Until you clear it | Only if you accept |
| ph_phc_t6rrEspDXb4Ubvy8KdsVCV9YwVyPjAo34Yg9xC3WgEdN_posthog | Session storage | PostHog analytics: details of the current visit in this tab. | Until the tab is closed | Only if you accept |
| ff_internal | Local storage | Marks FF Dev Studio’s own devices, so our own visits are left out of the statistics. Never set for visitors. | Until removed | Only on FF Dev Studio’s devices |
| ph_phc_t6rrEspDXb4Ubvy8KdsVCV9YwVyPjAo34Yg9xC3WgEdN_window_id | Session storage | Tells visits in different tabs apart, so recordings are not mixed up. | Until the tab is closed | Only if you accept |
Nothing else: no advertising cookies, no third-party cookies, and the fonts are served from this site.