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.

100 hosts (first page) · 230 ms

HostCertsFirst seenLast seen
shadow.tech 84 2026-04-16 2026-09-30
*.shadow.tech 44 2026-04-26 2026-09-30
messaging.os1.defra01.shadow.tech 14 2026-04-28 2026-08-24
auth.os1.defra01.shadow.tech 3 2026-05-29 2026-08-17
api.os1.defra01.shadow.tech 6 2026-05-29 2026-08-26
portal.os1.defra01.shadow.tech 3 2026-05-29 2026-08-17
beta.portal.os1.defra01.shadow.tech 3 2026-06-07 2026-08-26
prod.log.defra01.shadow.tech 5 2026-05-25 2026-09-22
speedtest.defra01.shadow.tech 5 2026-05-22 2026-09-19
envoy.defra01.shadow.tech 9 2026-04-26 2026-10-03
messaging.os1.uswdc01.shadow.tech 12 2026-04-27 2026-08-23
auth.os1.uswdc01.shadow.tech 4 2026-04-14 2026-09-21
api.os1.uswdc01.shadow.tech 7 2026-04-14 2026-09-21
portal.os1.uswdc01.shadow.tech 4 2026-04-14 2026-09-21
beta.portal.os1.uswdc01.shadow.tech 3 2026-06-27 2026-09-15
prod.log.uswdc01.shadow.tech 5 2026-05-05 2026-09-02
speedtest.uswdc01.shadow.tech 5 2026-05-23 2026-09-20
messaging.os1.frsbg01.shadow.tech 16 2026-04-27 2026-08-23
auth.os1.frsbg01.shadow.tech 3 2026-06-18 2026-09-06
api.os1.frsbg01.shadow.tech 6 2026-06-13 2026-09-06
portal.os1.frsbg01.shadow.tech 3 2026-06-18 2026-09-06
beta.portal.os1.frsbg01.shadow.tech 3 2026-06-13 2026-09-01
cell1.os2.frsbg01.shadow.tech 5 2026-06-01 2026-09-29
auth.os2.frsbg01.shadow.tech 5 2026-06-01 2026-09-29
api.os2.frsbg01.shadow.tech 5 2026-06-01 2026-09-29
portal.os2.frsbg01.shadow.tech 5 2026-06-01 2026-09-29
prod.log.frsbg01.shadow.tech 5 2026-06-02 2026-09-30
speedtest.frsbg01.shadow.tech 4 2026-04-20 2026-08-18
messaging.os1.camtl01.shadow.tech 16 2026-04-27 2026-08-23
auth.os1.camtl01.shadow.tech 3 2026-06-24 2026-09-12
api.os1.camtl01.shadow.tech 6 2026-06-08 2026-09-12
portal.os1.camtl01.shadow.tech 3 2026-06-24 2026-09-12
beta.portal.os1.camtl01.shadow.tech 3 2026-06-08 2026-08-27
prod.log.camtl01.shadow.tech 5 2026-05-05 2026-09-02
speedtest.camtl01.shadow.tech 6 2026-06-03 2026-10-01
envoy.camtl01.shadow.tech 5 2026-04-26 2026-10-03
messaging.os1.uspor01.shadow.tech 12 2026-04-27 2026-08-23
auth.os1.uspor01.shadow.tech 3 2026-06-11 2026-08-30
api.os1.uspor01.shadow.tech 6 2026-06-11 2026-09-15
portal.os1.uspor01.shadow.tech 3 2026-06-11 2026-08-30
beta.portal.os1.uspor01.shadow.tech 3 2026-06-27 2026-09-15
prod.log.uspor01.shadow.tech 5 2026-05-19 2026-09-16
speedtest.uspor01.shadow.tech 5 2026-05-25 2026-09-22
prod.log.frcrx01.shadow.tech 5 2026-05-04 2026-09-01
speedtest.frcrx01.shadow.tech 5 2026-05-03 2026-08-31
messaging.os1.frsbg02.shadow.tech 12 2026-04-27 2026-08-23
auth.os1.frsbg02.shadow.tech 5 2026-04-26 2026-10-03
api.os1.frsbg02.shadow.tech 9 2026-04-20 2026-10-03
portal.os1.frsbg02.shadow.tech 5 2026-04-26 2026-10-03
beta.portal.os1.frsbg02.shadow.tech 4 2026-04-20 2026-09-27
cell1.os2.frsbg02.shadow.tech 5 2026-05-25 2026-09-22
auth.os2.frsbg02.shadow.tech 5 2026-05-25 2026-09-22
api.os2.frsbg02.shadow.tech 5 2026-05-25 2026-09-22
portal.os2.frsbg02.shadow.tech 5 2026-05-25 2026-09-22
public.lb.frsbg02.shadow.tech 4 2026-06-11 2026-06-11
speedtest.rb.frsbg02.shadow.tech 3 2026-06-12 2026-08-31
cell.frsbg02.shadow.tech 1 2026-08-25 2026-08-25
speedtest.frsbg02.shadow.tech 4 2026-04-15 2026-08-14
envoy.frsbg02.shadow.tech 2 2026-06-09 2026-06-09
messaging.os1.frdun02.shadow.tech 12 2026-04-27 2026-08-23
auth.os1.frdun02.shadow.tech 3 2026-05-20 2026-08-08
api.os1.frdun02.shadow.tech 7 2026-05-20 2026-08-12
portal.os1.frdun02.shadow.tech 3 2026-05-20 2026-08-08
beta.portal.os1.frdun02.shadow.tech 4 2026-05-24 2026-08-12
prod.log.frdun02.shadow.tech 5 2026-04-30 2026-08-28
speedtest.frdun02.shadow.tech 5 2026-06-04 2026-10-02
envoy.frdun02.shadow.tech 4 2026-04-14 2026-09-21
img.mail-sb2.shadow.tech 10 2026-05-23 2026-09-19
r.mail-sb2.shadow.tech 3 2026-05-31 2026-08-19
traefik-v2.shadow.tech 14 2026-05-29 2026-09-25
auth.os1.frdun03.shadow.tech 3 2026-05-20 2026-08-08
api.os1.frdun03.shadow.tech 3 2026-05-20 2026-08-08
portal.os1.frdun03.shadow.tech 3 2026-05-20 2026-08-08
auth.os3.frdun03.shadow.tech 3 2026-05-23 2026-08-11
api.os3.frdun03.shadow.tech 3 2026-05-23 2026-08-11
portal.os3.frdun03.shadow.tech 3 2026-05-23 2026-08-11
auth.os4.frdun03.shadow.tech 4 2026-07-01 2026-09-19
api.os4.frdun03.shadow.tech 4 2026-07-01 2026-09-19
portal.os4.frdun03.shadow.tech 4 2026-07-01 2026-09-19
auth.os5.frdun03.shadow.tech 3 2026-06-05 2026-08-24
api.os5.frdun03.shadow.tech 3 2026-06-05 2026-08-24
portal.os5.frdun03.shadow.tech 3 2026-06-05 2026-08-24
prod.log.frdun03.shadow.tech 5 2026-04-29 2026-08-27
myv4.shadow.tech 21 2026-05-24 2026-09-19
myv6.shadow.tech 12 2026-05-23 2026-09-18
*.api-web.shadow.tech 20 2026-06-04 2026-09-30
*.ms-web.shadow.tech 20 2026-06-04 2026-09-30
img.mail-sb.shadow.tech 16 2026-05-20 2026-09-15
r.mail-sb.shadow.tech 3 2026-05-27 2026-08-15
rec.shadow.tech 17 2026-05-09 2026-09-04
ingress-nginx.gke-public.shadow.tech 16 2026-05-10 2026-09-05
pc.shadow.tech 10 2026-05-05 2026-08-31
*.preprod.shadow.tech 20 2026-06-04 2026-09-30
*.api-web.preprod.shadow.tech 20 2026-06-04 2026-09-30
maintenance.shadow.tech 16 2026-05-10 2026-09-05
send-logs-bridge.shadow.tech 4 2026-06-10 2026-10-08
update.shadow.tech 20 2026-05-11 2026-09-07
reactivate.shadow.tech 14 2026-05-10 2026-09-05
wordpress-website.shadow.tech 12 2026-04-16 2026-08-12
nginx-website.shadow.tech 12 2026-05-06 2026-09-02

Showing the first 100 hostnames — sign in with GitHub or Google to page the full list, or use the API with an API key: GET /v1/hosts/shadow.tech.

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/shadow.tech.