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.

40 hosts · 224 ms

HostCertsFirst seenLast seen
jenoptik.com 31 2025-09-09 2026-10-01
*.jenoptik.com 20 2025-11-24 2026-09-12
mailgw1.jenoptik.com 4 2026-02-05 2026-02-05
mailgw2.jenoptik.com 4 2026-02-05 2026-02-05
wapf-traffidata.jenoptik.com 1 2025-10-10 2025-10-10
hub.jenoptik.com 5 2026-05-16 2026-09-12
teams-sbc.jenoptik.com 4 2025-09-11 2026-10-05
domevic.jenoptik.com 3 2025-09-11 2026-09-11
training-domevic.jenoptik.com 3 2025-09-11 2026-09-11
test-domevic.jenoptik.com 3 2025-09-11 2026-09-11
hybrid.jenoptik.com 3 2025-09-16 2026-08-19
performanie.jenoptik.com 6 2025-11-20 2026-09-09
phone.jenoptik.com 3 2025-09-16 2026-08-19
aus-bof.jenoptik.com 1 2025-12-16 2025-12-16
www.aus-bof.jenoptik.com 1 2025-12-16 2025-12-16
support.ts.ch.jenoptik.com 4 2026-05-10 2026-07-09
traffiserviceportal.jenoptik.com 1 2026-02-12 2026-02-12
mail.jenoptik.com 3 2025-09-16 2026-08-19
download.mail.jenoptik.com 3 2025-09-16 2026-08-19
hub-bo.jenoptik.com 5 2026-05-16 2026-09-12
traffihelp.jenoptik.com 5 2026-05-15 2026-09-12
newsletter.jenoptik.com 5 2026-05-11 2026-09-08
autodiscover.jenoptik.com 3 2025-09-16 2026-08-19
training-traffic-solutions.jenoptik.com 5 2026-05-15 2026-09-12
careers.jenoptik.com 1 2025-11-18 2025-11-18
focus.jenoptik.com 7 2025-11-29 2026-10-01
giveaways.jenoptik.com 7 2026-05-05 2026-09-03
hub-t.jenoptik.com 5 2026-05-16 2026-09-12
hub-bo-t.jenoptik.com 5 2026-05-16 2026-09-12
intranet.jenoptik.com 2 2025-09-08 2026-09-08
extranet.jenoptik.com 11 2025-09-09 2026-10-01
hub-int.jenoptik.com 5 2026-05-22 2026-09-19
hub-bo-int.jenoptik.com 5 2026-05-22 2026-09-19
giveaways-dev.jenoptik.com 5 2026-04-30 2026-08-28
enjoy-dev.jenoptik.com 5 2026-04-30 2026-08-28
www.myserv.jenoptik.com 1 2026-05-29 2026-05-29
www.jenoptik.com 7 2025-11-29 2026-10-01
support.ts.benelux.jenoptik.com 6 2026-06-03 2026-10-01
wapf-gateway.jenoptik.com 1 2025-10-10 2025-10-10
enjoy.jenoptik.com 5 2026-05-06 2026-09-03

Programmatic access: API GET /v1/hosts/jenoptik.com (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/jenoptik.com.