Do relay sites disappear? What measurable signs precede it

Disappearance share by feature

All features are visible on the site page: TLD, whether registration is open, panel family, domain age, 7-day uptime (ICP filing information is not yet collected; it will be added automatically once collected). Longer windows are more meaningful but need longer observation periods; for now only the short windows have data.

7-day window · observed for 7+ days: 2101 sites, of which 133 have disappeared (6.3%)

14-day window · observed for 14+ days: 2079 sites, of which 133 have disappeared (6.4%)

30-day window · observed for 30+ days: 1913 sites, of which 131 have disappeared (6.9%)

Disappearance and revival log

Definitions

Disappeared = 7 consecutive days with ≥80 valid probe rounds and not a single successful connection (excluding rounds with our-side failures). Ratio = the share of sites observed for a full N days that have disappeared; it is only a historical base rate, not a prediction for any site. Domain age is taken from the registration date in the registry's public RDAP record; for TLDs without RDAP (e.g. .cn) it falls back to the date of the domain's first certificate in certificate transparency logs, which is later than the true registration date. Each site page has a "survival signals" card listing these features for that site. We do not weight these features into a score, because weights are opinions.