Find every subdomain
of a domain.

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

39 hosts · 245 ms

HostCertsFirst seenLast seenDNS
myky.ch 8 2025-09-05 2026-09-23 ok
*.myky.ch 8 2025-09-05 2026-09-23 —
*.ptr8442.myky.ch 4 2026-05-01 2026-07-17 —
*.ptr445.myky.ch 4 2026-05-01 2026-07-17 —
2026.myky.ch 2 2026-06-03 2026-06-03 nxdomain
*.service.myky.ch 4 2026-05-01 2026-07-17 —
archive.myky.ch 2 2026-07-29 2026-07-29 nxdomain
login-long.myky.ch 5 2026-04-14 2026-09-26 ok
app-long.myky.ch 5 2026-04-14 2026-09-26 ok
*.app-long.myky.ch 4 2026-05-01 2026-07-17 —
*.app-local.myky.ch 4 2026-05-01 2026-07-17 —
design.myky.ch 5 2026-05-31 2026-09-28 ok
login.myky.ch 14 2026-04-12 2026-09-22 ok
*.login.myky.ch 4 2026-05-01 2026-07-17 —
*.infomaison.myky.ch 4 2026-05-01 2026-07-17 —
*.hausinfo.myky.ch 4 2026-05-01 2026-07-17 —
argo.myky.ch 11 2026-04-24 2026-10-04 ok
app.myky.ch 14 2026-04-16 2026-09-28 ok
*.app.myky.ch 4 2026-05-01 2026-07-17 —
sanierungsplaner.myky.ch 1 2026-09-14 2026-09-14 ok
*.sanierungsplaner.myky.ch 4 2026-05-01 2026-07-17 —
solarrechner.myky.ch 3 2026-03-30 2026-09-14 ok
status.myky.ch 4 2026-04-21 2026-08-18 ok
*.news.myky.ch 4 2026-05-01 2026-07-17 —
login-int.myky.ch 5 2026-04-18 2026-09-27 ok
argo-int.myky.ch 10 2026-05-02 2026-09-14 ok
app-int.myky.ch 5 2026-04-18 2026-09-27 ok
*.app-int.myky.ch 4 2026-05-01 2026-07-17 —
login-test.myky.ch 5 2026-04-16 2026-09-26 ok
app-test.myky.ch 5 2026-04-16 2026-09-26 ok
*.app-test.myky.ch 4 2026-05-01 2026-07-17 —
login-edu.myky.ch 1 2026-04-17 2026-04-17 —
app-edu.myky.ch 1 2026-04-17 2026-04-17 nodata
*.app-edu.myky.ch 4 2026-05-01 2026-07-17 —
login-dev.myky.ch 7 2026-04-13 2026-09-24 ok
entra-login-dev.myky.ch 6 2026-04-15 2026-07-31 ok
argo-dev.myky.ch 6 2026-04-13 2026-09-01 ok
app-dev.myky.ch 7 2026-04-13 2026-09-24 ok
*.app-dev.myky.ch 4 2026-05-01 2026-07-17 —

Programmatic access, with DNS A records: API GET /v1/hosts/myky.ch (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/myky.ch.