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.

34 hosts · 186 ms

HostCertsFirst seenLast seen
esto.ee 61 2025-07-21 2026-10-04
*.esto.ee 21 2025-07-21 2026-09-28
*.v2.esto.ee 34 2026-04-17 2026-10-11
tracking.ib51363.esto.ee 5 2026-05-21 2026-09-16
kyc.esto.ee 16 2026-05-30 2026-09-26
id.esto.ee 4 2026-05-15 2026-05-15
profile.esto.ee 22 2026-06-05 2026-10-01
affiliate.esto.ee 10 2026-05-06 2026-09-01
email.mg.esto.ee 30 2026-05-01 2026-08-28
billing.esto.ee 14 2026-06-09 2026-10-05
marketing.esto.ee 15 2026-06-09 2026-10-06
api-ph.esto.ee 26 2026-06-08 2026-10-05
api.esto.ee 21 2026-06-07 2026-10-03
pf-api.esto.ee 23 2026-04-22 2026-08-27
k.esto.ee 4 2026-07-01 2026-08-29
crm.esto.ee 16 2026-05-30 2026-09-25
form.esto.ee 14 2026-05-11 2026-09-07
pf-assets-origin.esto.ee 10 2026-05-08 2026-09-03
admin.esto.ee 15 2025-07-25 2026-08-14
info.esto.ee 20 2026-06-09 2026-10-05
go.esto.ee 21 2026-05-02 2026-09-04
cio.esto.ee 20 2026-04-30 2026-08-26
app.esto.ee 16 2026-05-07 2026-09-02
cio.customer.esto.ee 16 2026-05-02 2026-08-28
partner.esto.ee 10 2026-04-30 2026-08-25
docs.esto.ee 6 2026-07-08 2026-07-08
images.esto.ee 15 2026-04-21 2026-09-21
translations.esto.ee 17 2026-05-19 2026-09-15
business.esto.ee 14 2026-06-10 2026-10-06
cp-assets.esto.ee 10 2026-06-23 2026-08-27
chat.esto.ee 1 2026-09-28 2026-09-28
product.esto.ee 17 2026-06-09 2026-10-05
ingest.esto.ee 21 2026-04-22 2026-09-09
www.esto.ee 20 2026-05-30 2026-09-29

Programmatic access: API GET /v1/hosts/esto.ee (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/esto.ee.