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.

45 hosts · 235 ms

HostCertsFirst seenLast seen
apartmentlist.com 5 2026-05-08 2026-10-09
*.apartmentlist.com 6 2025-10-06 2026-09-08
url7496.id.apartmentlist.com 5 2026-05-18 2026-09-15
midgard.apartmentlist.com 7 2026-04-12 2026-10-09
staging.apartmentlist.com 5 2026-05-29 2026-09-26
*.staging.apartmentlist.com 8 2026-05-29 2026-09-26
midgard.staging.apartmentlist.com 4 2026-06-11 2026-10-09
onboarding.staging.apartmentlist.com 5 2026-05-15 2026-09-17
portal.staging.apartmentlist.com 5 2026-06-04 2026-10-02
login.staging.apartmentlist.com 5 2026-05-23 2026-09-20
sp.staging.apartmentlist.com 5 2026-06-01 2026-09-29
partner.staging.apartmentlist.com 5 2026-05-06 2026-09-03
bifrost.staging.apartmentlist.com 5 2025-12-11 2026-08-13
sunny.staging.apartmentlist.com 5 2026-04-29 2026-08-27
*.marketing.apartmentlist.com 4 2026-04-15 2026-08-13
storybook.apartmentlist.com 5 2026-05-22 2026-09-19
spark.apartmentlist.com 8 2026-05-18 2026-09-13
sl.apartmentlist.com 4 2026-04-14 2026-08-12
cdn.apartmentlist.com 14 2026-01-28 2026-09-13
login.apartmentlist.com 4 2026-04-13 2026-08-11
help.apartmentlist.com 12 2026-05-13 2026-09-09
sp.apartmentlist.com 5 2026-06-01 2026-09-29
ftp.apartmentlist.com 10 2026-05-14 2026-09-11
*.ftp.apartmentlist.com 5 2026-05-09 2026-09-06
sftp.apartmentlist.com 3 2026-06-25 2026-09-09
url2187.sftp.apartmentlist.com 4 2026-06-04 2026-10-02
faq.apartmentlist.com 9 2026-05-19 2026-09-14
matchmaker.apartmentlist.com 4 2026-04-15 2026-08-13
*.matchmaker.apartmentlist.com 4 2026-04-15 2026-08-13
partner.apartmentlist.com 4 2026-04-12 2026-08-10
lister.apartmentlist.com 6 2026-06-18 2026-08-16
*.sales.apartmentlist.com 4 2026-04-15 2026-08-13
leases.apartmentlist.com 6 2026-04-17 2026-08-10
links.apartmentlist.com 5 2026-06-02 2026-09-30
ai-conversations.apartmentlist.com 5 2026-05-14 2026-09-11
url8114.solutions.apartmentlist.com 1 2026-08-12 2026-08-12
url9778.solutions.apartmentlist.com 4 2026-06-04 2026-08-12
listwithus.apartmentlist.com 5 2026-05-05 2026-09-02
lift.apartmentlist.com 8 2026-05-19 2026-09-14
short.apartmentlist.com 6 2026-05-11 2026-09-07
support.apartmentlist.com 8 2026-05-03 2026-08-29
bifrost.apartmentlist.com 4 2026-04-15 2026-08-13
my.apartmentlist.com 6 2026-05-11 2026-09-07
sunny.apartmentlist.com 5 2026-04-29 2026-08-27
myproperty.apartmentlist.com 4 2026-04-12 2026-08-10

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