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.

86 hosts · 287 ms

HostCertsFirst seenLast seen
substancesactives.com 25 2026-04-24 2026-09-23
*.substancesactives.com 20 2026-04-24 2026-09-06
dev100.substancesactives.com 4 2026-06-05 2026-10-03
dev10.substancesactives.com 5 2026-05-15 2026-09-12
dev20.substancesactives.com 4 2026-04-16 2026-08-14
dev30.substancesactives.com 5 2026-04-10 2026-09-27
dev11.substancesactives.com 5 2026-05-21 2026-09-18
dev21.substancesactives.com 4 2026-04-18 2026-08-16
web1.substancesactives.com 5 2026-05-07 2026-09-04
dev1.substancesactives.com 5 2026-05-15 2026-09-12
dev12.substancesactives.com 5 2026-04-24 2026-08-22
dev22.substancesactives.com 5 2026-05-21 2026-09-18
web2.substancesactives.com 5 2026-06-07 2026-10-05
derp2.substancesactives.com 3 2026-06-18 2026-08-18
dev2.substancesactives.com 5 2026-05-15 2026-09-12
w2.substancesactives.com 8 2026-04-29 2026-08-27
dev13.substancesactives.com 5 2026-06-08 2026-10-06
dev23.substancesactives.com 5 2026-04-23 2026-08-21
dev33.substancesactives.com 5 2026-05-01 2026-08-29
web3.substancesactives.com 5 2026-05-06 2026-09-03
dev3.substancesactives.com 5 2026-05-15 2026-09-12
dev14.substancesactives.com 5 2026-04-23 2026-08-21
dev24.substancesactives.com 5 2026-04-23 2026-08-21
web4.substancesactives.com 5 2026-04-26 2026-08-24
dev4.substancesactives.com 5 2026-05-21 2026-09-18
dev15.substancesactives.com 5 2026-05-15 2026-09-12
dev25.substancesactives.com 5 2026-06-08 2026-10-06
dev5.substancesactives.com 5 2026-05-08 2026-09-05
dev16.substancesactives.com 5 2026-05-15 2026-09-12
dev26.substancesactives.com 4 2026-04-17 2026-08-15
dev6.substancesactives.com 5 2026-05-08 2026-09-05
dev17.substancesactives.com 5 2026-04-23 2026-08-21
dev27.substancesactives.com 4 2026-04-17 2026-08-15
dev7.substancesactives.com 5 2026-05-08 2026-09-05
dev18.substancesactives.com 5 2026-05-06 2026-09-03
dev28.substancesactives.com 4 2026-04-17 2026-08-15
dev8.substancesactives.com 5 2026-05-08 2026-09-05
dev19.substancesactives.com 5 2026-04-23 2026-08-21
dev29.substancesactives.com 4 2026-04-17 2026-08-15
dev9.substancesactives.com 5 2026-05-14 2026-09-11
traefik-sa.substancesactives.com 11 2026-04-27 2026-08-29
portainer-sa.substancesactives.com 11 2026-04-27 2026-08-29
monitor-sa.substancesactives.com 4 2026-05-13 2026-07-12
backend-monitor-sa.substancesactives.com 4 2026-05-13 2026-07-12
wa.substancesactives.com 5 2026-05-09 2026-09-06
chat-preprod.substancesactives.com 3 2026-08-03 2026-10-02
tb-admin-storage.substancesactives.com 6 2026-06-02 2026-10-01
typebot-storage.substancesactives.com 5 2026-06-01 2026-09-30
headscale.substancesactives.com 4 2026-06-06 2026-10-05
uptime.substancesactives.com 10 2026-04-27 2026-08-26
share.substancesactives.com 5 2026-05-15 2026-09-11
activshare.substancesactives.com 8 2026-04-28 2026-06-28
budibase.substancesactives.com 4 2026-05-27 2026-05-28
auth.substancesactives.com 5 2026-05-23 2026-09-20
dev-auth.substancesactives.com 5 2026-05-01 2026-08-29
dev.auth.substancesactives.com 5 2026-05-01 2026-08-29
traefikovh.substancesactives.com 5 2026-05-11 2026-09-09
wiki.substancesactives.com 11 2026-04-27 2026-08-29
email.substancesactives.com 5 2026-04-14 2026-10-11
form.substancesactives.com 4 2026-05-31 2026-06-01
n8n.substancesactives.com 5 2026-05-07 2026-09-04
go.substancesactives.com 16 2026-04-28 2026-10-09
roadmap.substancesactives.com 5 2026-05-08 2026-09-22
ip.substancesactives.com 11 2026-04-27 2026-08-29
derp.substancesactives.com 3 2026-06-18 2026-08-17
typebot-backup.substancesactives.com 5 2026-05-29 2026-09-27
zapier.substancesactives.com 10 2026-04-27 2026-08-26
leadhunter.substancesactives.com 3 2026-04-16 2026-06-16
metrics.substancesactives.com 7 2026-05-18 2026-10-06
analytics.substancesactives.com 5 2026-05-17 2026-09-15
services.substancesactives.com 5 2026-05-11 2026-09-27
conges.substancesactives.com 10 2026-04-27 2026-08-26
events.substancesactives.com 4 2026-04-14 2026-08-12
chat.substancesactives.com 5 2026-05-09 2026-09-06
traefik-connect.substancesactives.com 10 2026-05-27 2026-09-26
git.substancesactives.com 5 2026-04-29 2026-08-29
email.git.substancesactives.com 5 2026-05-01 2026-08-29
registry.git.substancesactives.com 5 2026-04-29 2026-08-29
bot.substancesactives.com 5 2026-05-28 2026-09-26
typebot.substancesactives.com 5 2026-05-28 2026-09-26
traefik-typebot.substancesactives.com 5 2026-05-28 2026-09-26
mattermost.substancesactives.com 5 2026-05-29 2026-09-26
pdfactiv.substancesactives.com 8 2026-05-01 2026-07-01
notifactiv.substancesactives.com 10 2026-05-19 2026-09-18
www.substancesactives.com 5 2026-05-26 2026-09-23
sentry.substancesactives.com 5 2026-05-13 2026-09-10

Programmatic access: API GET /v1/hosts/substancesactives.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/substancesactives.com.