Cookies
Last updated 14 October 2026
CircuitScope only uses cookies and browser storage that are strictly needed for the site to work, so we don't need to ask for your consent and there's no cookie banner. There are no advertising, analytics or tracking cookies, and nothing from other companies — except that if a page has a YouTube video and you press play, the video then loads from YouTube (youtube-nocookie.com), which may set its own cookies. Nothing is loaded from YouTube until you press play.
Cookies
| Name | What it's for | How long |
|---|---|---|
.CS_AUTH | Keeps you signed in. | Until you close your browser, or 180 days if you tick "Keep me signed in" |
.CS_DEVICE | Remembers this device so you don't need a two-step sign-in code every time (only if you choose that). | 180 days |
.AspNetCore.Session | Remembers where you are in sign-in and email-change steps. | 60 minutes after your last visit |
.AspNetCore.Antiforgery.* | Security: stops other websites submitting forms as you. | Until you close your browser |
.AspNetCore.Mvc.CookieTempDataProvider | Shows a one-off message (like "Saved") on the next page. | Until it's shown |
bkdone | Staff only: tells the backup page a download has finished. | 5 minutes |
Other storage in your browser
- Local storage —
cs_pwa_dismissed_until(so we don't keep offering to install the app after you've said no) anddcMembers(whether the member list in forum chat is open). - Editor drafts (staff only) — while you edit a page or guide, the editor keeps a draft in your browser for up to a day so it can be restored if the page closes.
- App cache — the site's own pictures, styles and scripts, so pages load faster and work offline.
- AR scanner cache — board reference data the AR viewer has already downloaded.
None of this is shared with anyone. You can clear it at any time in your browser settings — you'll just be signed out.