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.

17 hosts · 263 ms

HostCertsFirst seenLast seen
megastar.fr 29 2026-04-26 2026-10-12
*.megastar.fr 18 2026-06-07 2026-10-04
cloud.megastar.fr 2 2026-04-23 2026-09-24
image.email.megastar.fr 4 2026-01-06 2026-08-17
click.email.megastar.fr 3 2026-04-23 2026-09-24
view.email.megastar.fr 3 2026-04-23 2026-09-24
login.megastar.fr 3 2026-05-13 2026-09-25
radar.megastar.fr 6 2026-09-10 2026-09-10
*.radar.megastar.fr 4 2026-09-10 2026-09-10
uat.megastar.fr 4 2026-06-09 2026-10-13
login.uat.megastar.fr 3 2026-05-12 2026-09-24
test.megastar.fr 5 2026-05-01 2026-09-04
login.test.megastar.fr 3 2026-05-11 2026-09-23
sudoku.megastar.fr 5 2026-05-27 2026-08-29
www.megastar.fr 5 2026-04-26 2026-08-30
quiz.megastar.fr 2 2026-10-12 2026-10-12
*.quiz.megastar.fr 2 2026-10-12 2026-10-12

Programmatic access: API GET /v1/hosts/megastar.fr (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/megastar.fr.