Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

53 hosts · 254 ms

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HostCertsFirst seenLast seen
in.se 2 2026-03-16 2026-09-11
*.in.se 2 2026-03-16 2026-09-11
registrera.in.se 1 2026-09-14 2026-09-14
stage.in.se 4 2026-03-11 2026-10-18
registrera-stage.in.se 1 2026-09-14 2026-09-14
kb-stage.in.se 2 2026-03-06 2026-06-29
fastighetslogg-stage.in.se 3 2026-02-24 2026-09-10
kompetensverktyg-stage.in.se 5 2026-02-23 2026-10-14
kontrollel-stage.in.se 4 2026-02-25 2026-09-15
sakerel-stage.in.se 3 2026-02-26 2026-09-08
api-sakerel-stage.in.se 4 2026-02-22 2026-10-07
sakersol-stage.in.se 4 2026-02-14 2026-09-01
ledningssystem-stage.in.se 2 2026-05-05 2026-08-28
kundportalen-stage.in.se 3 2026-06-09 2026-10-01
admin-stage.in.se 5 2026-02-14 2026-10-08
idp-stage.in.se 6 2026-05-20 2026-09-13
manager-stage.in.se 2 2026-03-05 2026-06-29
ids-stage.in.se 2 2026-03-08 2026-06-29
elkontrollplus-stage.in.se 2 2026-02-14 2026-06-07
kundmotesutbildning-for-ledare.in.se 2 2026-02-13 2026-07-07
fastighetslogg.in.se 2 2026-09-10 2026-09-10
kundvardesutbildning.in.se 2 2026-02-10 2026-07-05
kompetensverktyg.in.se 4 2026-02-22 2026-10-16
api.in.se 2 2026-07-09 2026-07-09
kontrollel.in.se 4 2026-02-22 2026-09-16
sakerel.in.se 3 2026-02-22 2026-09-08
api-sakerel.in.se 4 2026-02-22 2026-10-07
sakersol.in.se 4 2026-02-14 2026-09-01
ledningssystem.in.se 1 2026-05-05 2026-05-05
admin.in.se 6 2026-02-14 2026-10-08
kundmotesutbildning-for-ledare-demo.in.se 2 2026-02-16 2026-07-09
kundvardesutbildning-demo.in.se 2 2026-02-25 2026-07-14
kundmotesutbildning-for-montorer-demo.in.se 3 2026-02-27 2026-07-24
kundmotesutbildning-for-montorer.in.se 2 2026-03-02 2026-07-19
dev.in.se 2 2026-03-05 2026-06-29
registrera-dev.in.se 2 2026-09-14 2026-09-14
nya-dev.in.se 1 2026-09-22 2026-09-22
kb-dev.in.se 2 2026-03-11 2026-06-25
fastighetslogg-dev.in.se 3 2026-02-22 2026-09-10
kompetensverktyg-dev.in.se 4 2026-02-18 2026-10-10
api-dev.in.se 2 2026-07-08 2026-07-09
storybook-dev.in.se 2 2026-03-05 2026-06-29
kontrollel-dev.in.se 4 2026-02-25 2026-09-15
sakerel-dev.in.se 3 2026-02-22 2026-09-08
api-sakerel-dev.in.se 3 2026-02-26 2026-10-10
sakersol-dev.in.se 3 2026-02-14 2026-09-01
ledningssystem-dev.in.se 2 2026-05-05 2026-08-28
kundportalen-dev.in.se 3 2026-06-09 2026-10-01
admin-dev.in.se 4 2026-02-24 2026-10-08
idp-dev.in.se 4 2026-05-20 2026-06-30
manager-dev.in.se 4 2026-03-06 2026-10-18
ids-dev.in.se 2 2026-03-06 2026-06-25
elkontrollplus-dev.in.se 2 2026-02-14 2026-06-08

Programmatic access: API GET /v1/hosts/in.se (API key for paging).

Shown here: hostnames with a certificate that is valid now or expired within the last 90 days. The full history since 2013 — hostnames whose last certificate expired earlier — is a Pro plan method: GET /v1/hosts-history/in.se.