Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts, first/last seen and live DNS status.

100 hosts (first page) · 521 ms

HostCertsFirst seenLast seenDNS
2k.com 4 2025-07-21 2026-08-10 ok
*.2k.com 2 2025-06-18 2026-05-19 —
media.cr2.2k.com 2 2026-03-09 2026-07-25 ok
nba.2k.com 3 2025-07-21 2026-08-10 ok
creators.nba.2k.com 1 2026-08-14 2026-08-14 ok
www.nba.2k.com 3 2025-07-21 2026-08-10 ok
valencia.2k.com 4 2025-07-21 2026-08-10 ok
www.valencia.2k.com 4 2025-07-21 2026-08-10 ok
dev-civilopedia.2k.com 1 2026-01-27 2026-01-27 nodata
mafia.2k.com 3 2025-07-21 2026-08-10 ok
www.mafia.2k.com 3 2025-07-21 2026-08-10 ok
newsroom-asia.2k.com 3 2026-05-08 2026-09-19 ok
sportslab.2k.com 4 2025-07-21 2026-08-13 ok
www.sportslab.2k.com 4 2025-07-21 2026-08-13 ok
hub.2k.com 2 2025-07-28 2026-07-21 ok
thegolfclub.2k.com 2 2025-09-06 2026-08-07 ok
www.thegolfclub.2k.com 2 2025-09-06 2026-08-07 nodata
vpn-prod.2k.com 2 2025-07-21 2026-07-15 ok
www.vpn-prod.2k.com 2 2025-07-21 2026-07-15 nodata
newsroom-de.2k.com 5 2025-08-03 2026-09-23 ok
www.newsroom-de.2k.com 2 2025-08-03 2026-08-04 nxdomain
quarrygame.2k.com 4 2025-07-21 2026-08-20 ok
www.quarrygame.2k.com 4 2025-07-21 2026-08-20 ok
employee.store.2k.com 2 2025-06-18 2026-05-19 ok
staging.employee.store.2k.com 2 2025-06-18 2026-05-19 ok
vanity-staging.employee.store.2k.com 2 2025-06-18 2026-05-19 nodata
vanity-develop.employee.store.2k.com 2 2025-06-18 2026-05-19 nodata
int.employee.store.2k.com 2 2025-06-18 2026-05-19 ok
dev.employee.store.2k.com 2 2025-06-18 2026-05-19 ok
vanity.employee.store.2k.com 2 2025-06-18 2026-05-19 nodata
wwe.2k.com 5 2025-07-21 2026-08-24 ok
www.wwe.2k.com 5 2025-07-21 2026-08-24 ok
ssohandoff.2k.com 2 2025-08-14 2025-12-25 ok
www.ssohandoff.2k.com 2 2025-08-14 2025-12-25 nodata
blog.2k.com 4 2026-06-09 2026-10-05 ok
www.blog.2k.com 4 2026-04-19 2026-08-16 ok
research.2k.com 2 2026-04-07 2026-09-07 ok
cloud.research.2k.com 3 2025-09-04 2026-08-22 ok
image.research.2k.com 3 2025-08-04 2026-07-13 ok
click.research.2k.com 3 2025-09-04 2026-08-25 ok
view.research.2k.com 3 2025-09-04 2026-08-25 ok
www.research.2k.com 2 2026-04-07 2026-09-07 ok
email.uresearch.2k.com 4 2026-04-19 2026-08-17 ok
mi.2k.com 2 2025-09-24 2026-08-25 ok
api.2k.com 3 2025-10-23 2026-09-23 ok
gameshapers-read-api.2k.com 2 2025-08-21 2026-07-22 ok
www.gameshapers-read-api.2k.com 2 2025-08-21 2026-07-22 ok
gameshapers-api.2k.com 3 2025-08-14 2026-08-16 ok
www.gameshapers-api.2k.com 3 2025-08-14 2026-08-16 ok
int-api.2k.com 3 2025-10-23 2026-09-23 ok
newsroom-uk.2k.com 3 2026-05-08 2026-09-19 ok
portal.2k.com 5 2026-05-04 2026-10-06 ok
stg.portal.2k.com 5 2026-05-04 2026-10-06 ok
dev.portal.2k.com 6 2025-11-09 2026-10-06 ok
nfl.2k.com 10 2025-07-21 2026-09-30 ok
www.nfl.2k.com 7 2025-07-21 2026-08-16 ok
mail.2k.com 1 2026-06-18 2026-06-18 nxdomain
newsroom-nl.2k.com 5 2025-08-05 2026-09-19 ok
www.newsroom-nl.2k.com 2 2025-08-05 2026-08-05 nxdomain
gql.2k.com 2 2026-03-25 2026-08-25 ok
www.gql.2k.com 2 2026-03-25 2026-08-25 nodata
xcom.2k.com 3 2025-07-21 2026-08-10 nodata
www.xcom.2k.com 3 2025-07-21 2026-08-10 nodata
newsroom.2k.com 3 2026-05-08 2026-09-19 ok
newsroom-zhcn.2k.com 4 2025-07-28 2026-09-23 ok
www.newsroom-zhcn.2k.com 2 2025-07-28 2026-07-30 nxdomain
cdn.2k.com 2 2026-04-12 2026-09-12 ok
www.cdn.2k.com 2 2026-04-12 2026-09-12 ok
riskofrain.2k.com 4 2025-07-21 2026-09-24 ok
www.riskofrain.2k.com 4 2025-07-21 2026-09-24 ok
topspin.2k.com 10 2025-07-21 2026-09-24 ok
www.topspin.2k.com 3 2025-07-21 2026-08-10 ok
civilization.2k.com 3 2025-07-21 2026-08-10 ok
eras-and-allies-civilization.2k.com 1 2025-12-09 2025-12-09 ok
*.eras-and-allies-civilization.2k.com 1 2025-12-09 2025-12-09 —
eras-and-allies.civilization.2k.com 2 2026-03-25 2026-08-25 ok
*.eras-and-allies.civilization.2k.com 2 2026-03-25 2026-08-25 —
www.civilization.2k.com 3 2025-07-21 2026-08-10 ok
vpn.2k.com 1 2026-05-01 2026-05-01 ok
*.yoom-vpn.2k.com 1 2026-01-14 2026-01-14 —
pre.yoom-vpn.2k.com 1 2026-01-14 2026-01-14 ok
*.vpn.2k.com 1 2026-05-01 2026-05-01 —
lego.2k.com 4 2025-07-21 2026-09-17 ok
www.lego.2k.com 4 2025-07-21 2026-09-17 ok
newsroom-ko.2k.com 4 2025-07-22 2026-09-28 ok
www.newsroom-ko.2k.com 2 2025-07-22 2026-07-22 nxdomain
promo.2k.com 8 2025-07-21 2026-08-18 ok
www.promo.2k.com 8 2025-07-21 2026-08-18 ok
newsroom-jp.2k.com 5 2025-07-22 2026-09-19 ok
www.newsroom-jp.2k.com 2 2025-07-22 2026-07-22 nxdomain
help.2k.com 5 2026-04-10 2026-10-05 ok
www.help.2k.com 4 2026-04-19 2026-08-16 ok
bomgar.2k.com 1 2026-07-13 2026-07-13 nxdomain
newsroom-ptbr.2k.com 5 2025-07-28 2026-09-23 ok
www.newsroom-ptbr.2k.com 2 2025-07-28 2026-07-30 nxdomain
developer.2k.com 2 2025-06-12 2026-05-13 ok
*.developer.2k.com 2 2025-06-12 2026-05-13 —
web.bootstrapper.2k.com 3 2025-09-22 2026-08-26 nxdomain
www.web.bootstrapper.2k.com 3 2025-09-22 2026-08-26 nxdomain
cloud.newsletter.2k.com 1 2025-11-04 2025-11-04 ok

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/2k.com.

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/2k.com.