.se
Availability-check reliability and the registry servers we query for .se domains.
Our answer rate
Not enough data Country- Answer rate
- 100.0% of attempted checks returned a definitive answer
- Check volume
- Minimal (coarse band, not a count)
- Mostly answered by
- DNS
- Still available
- 95.3% of answered .se candidates were unregistered
- Last definitive answer
- 2026-09-21
Servers we query for .se
Public registry infrastructure — a whois, a
dig NS se, and one read of
IANA’s bootstrap file
return the same three values. Listed here for convenience.
- WHOIS host
-
whois.iis.se - Authoritative nameservers
-
c.ns.se192.36.135.107f.ns.se192.36.134.97g.ns.se194.68.134.97i.ns.se194.146.106.22m.ns.se194.0.11.112x.ns.se213.108.25.4y.ns.se185.159.197.150z.ns.se185.159.198.150a.ns.se192.36.144.107b.ns.se192.36.133.107 - RDAP endpoint
- no RDAP server — .se is checked by DNS / WHOIS
What this measures: the share of our own availability checks that came back with a definitive answer. Nobody else publishes this, because nobody else is running bulk registry lookups at this scale and recording what came back.
What it does not measure: a registry’s uptime or quality. A low rate here can just as easily mean our requests are being rate-limited as it can mean anything about the registry itself.
These are current-state figures, not a history. We keep one record per domain, holding its most recent check — so a TLD that failed hundreds of times and then recovered reads as healthy here. A low rate means checks are failing now; a high one does not mean they always have.
Figures count domains checked, not queries — a domain checked six times counts once. Candidates we generated but never checked are excluded entirely; they are not failures. Snapshot rebuilt 2026-09-27 02:19:47.