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) · 454 ms

HostCertsFirst seenLast seenDNS
x-kom.pl 18 2026-03-10 2026-09-08 ok
*.x-kom.pl 18 2026-03-10 2026-09-08 —
rmaapi-v1.x-kom.pl 5 2026-05-07 2026-09-03 ok
salesmastersapi2.x-kom.pl 3 2026-04-12 2026-06-11 ok
wirtualnydoradca.x-kom.pl 5 2026-05-11 2026-09-08 ok
nvidia.x-kom.pl 4 2026-05-21 2026-07-20 ok
badania.x-kom.pl 5 2026-04-22 2026-08-20 ok
aplikacja.x-kom.pl 5 2026-05-21 2026-09-18 ok
ekspozycja.x-kom.pl 6 2026-05-24 2026-07-24 ok
pwa-zabka.x-kom.pl 1 2026-07-22 2026-07-22 ok
xrobot-zabka.x-kom.pl 1 2026-07-22 2026-07-22 ok
portalpracownika.x-kom.pl 4 2026-04-21 2026-08-19 ok
www.portalpracownika.x-kom.pl 4 2026-04-21 2026-08-19 ok
logistyka.x-kom.pl 5 2026-04-29 2026-08-27 ok
bondlanauczyciela.x-kom.pl 18 2026-04-11 2026-10-05 ok
*.bondlanauczyciela.x-kom.pl 18 2026-04-11 2026-10-05 —
kariera.x-kom.pl 5 2026-05-26 2026-09-24 ok
rmaapi-beta.x-kom.pl 5 2026-06-06 2026-10-04 ok
assets-beta.x-kom.pl 5 2026-04-22 2026-08-20 ok
xrobot-pwa.x-kom.pl 3 2026-04-12 2026-08-11 ok
b2b.x-kom.pl 8 2026-05-31 2026-09-28 ok
panel.portalb2b.x-kom.pl 3 2026-06-22 2026-09-18 ok
insurancessynchub.x-kom.pl 5 2026-05-10 2026-09-07 ok
orderssynchub.x-kom.pl 2 2026-06-04 2026-06-04 ok
backofficeapiwdpub.x-kom.pl 4 2026-05-26 2026-07-25 ok
backofficeapipub.x-kom.pl 4 2026-04-26 2026-06-25 ok
shippingtrackerapipub.x-kom.pl 5 2026-05-07 2026-09-04 ok
backofficeapigatewaypub.x-kom.pl 4 2026-04-22 2026-06-21 ok
xkomallegrosync.x-kom.pl 4 2026-06-09 2026-10-06 ok
xdoc.x-kom.pl 4 2026-04-12 2026-08-10 ok
argocd-grpc.x-kom.pl 5 2026-05-07 2026-09-04 ok
argocd.x-kom.pl 5 2026-05-07 2026-09-04 ok
xrobot-xvoice.x-kom.pl 1 2026-08-04 2026-08-04 ok
customerselfservice.x-kom.pl 4 2026-04-14 2026-08-12 ok
awzservice.x-kom.pl 2 2026-05-28 2026-05-28 ok
opinie.x-kom.pl 5 2026-05-21 2026-09-18 ok
promocje.x-kom.pl 5 2026-04-26 2026-08-24 ok
wd-recommendationmodule.x-kom.pl 5 2026-05-12 2026-09-09 ok
wd-datasynchronizationmodule.x-kom.pl 5 2026-05-14 2026-09-11 ok
wd-managementmodule.x-kom.pl 5 2026-05-12 2026-09-09 ok
webconksef.x-kom.pl 5 2026-05-14 2026-09-01 ok
research.x-kom.pl 4 2026-04-20 2026-08-18 ok
auth.x-kom.pl 3 2026-04-20 2026-06-19 ok
contentmoderator-ai.x-kom.pl 5 2026-05-12 2026-09-09 ok
productrecommenderai.x-kom.pl 5 2026-05-13 2026-09-10 ok
virtualassistantai.x-kom.pl 5 2026-05-11 2026-09-08 ok
cenowki.x-kom.pl 3 2026-06-06 2026-08-05 ok
dhl-de-api.x-kom.pl 4 2026-04-15 2026-08-13 ok
xrobot-api.x-kom.pl 1 2026-04-12 2026-04-12 ok
rmaapi.x-kom.pl 4 2026-05-07 2026-07-06 ok
giftcardapi.x-kom.pl 2 2026-06-01 2026-06-01 ok
backofficeapi.x-kom.pl 4 2026-04-19 2026-08-17 ok
mobileapi.x-kom.pl 4 2026-05-02 2026-07-01 ok
mdsuiapi.x-kom.pl 5 2026-05-26 2026-09-23 ok
promoapi.x-kom.pl 5 2026-05-23 2026-09-20 ok
xksapi.x-kom.pl 4 2026-04-16 2026-08-14 ok
xposapi.x-kom.pl 4 2026-05-12 2026-07-11 ok
newsapi.x-kom.pl 4 2026-05-30 2026-07-29 ok
swsapi.x-kom.pl 5 2026-05-16 2026-09-13 ok
mdsui.x-kom.pl 5 2026-05-07 2026-09-04 ok
argocd-hook.x-kom.pl 5 2026-05-07 2026-09-04 ok
xrobot-panel.x-kom.pl 3 2026-04-11 2026-08-11 ok
cloud.mail.x-kom.pl 1 2026-02-06 2026-02-06 ok
image.mail.x-kom.pl 4 2025-12-31 2026-09-06 ok
click.mail.x-kom.pl 3 2026-02-06 2026-02-06 ok
view.mail.x-kom.pl 1 2026-02-06 2026-02-06 ok
pim.x-kom.pl 5 2026-05-26 2026-09-23 ok
ops-pim.x-kom.pl 10 2026-05-27 2026-09-25 ok
cdn.x-kom.pl 10 2026-04-19 2026-09-27 ok
mdsnn.x-kom.pl 4 2026-05-08 2026-07-07 ok
webcon.x-kom.pl 5 2026-05-09 2026-08-27 ok
prezentacje.webcon.x-kom.pl 2 2026-05-13 2026-05-13 nxdomain
*.prezentacje.webcon.x-kom.pl 2 2026-05-13 2026-05-13 —
allegroauctionautomation.x-kom.pl 5 2026-05-01 2026-08-29 ok
allegroregularauctionautomation.x-kom.pl 6 2026-05-22 2026-09-18 ok
neonetallegroregularauctionautomation.x-kom.pl 5 2026-05-27 2026-09-24 ok
allegrooutletautomation.x-kom.pl 5 2026-04-24 2026-08-22 ok
ap.x-kom.pl 2 2026-06-05 2026-06-05 ok
parkingapp.x-kom.pl 4 2026-04-20 2026-08-18 ok
printdocumentorder.x-kom.pl 4 2026-04-27 2026-06-26 ok
shippingtracker.x-kom.pl 5 2026-05-14 2026-09-11 ok
elasticsearchupdater.x-kom.pl 4 2026-05-12 2026-07-11 ok
erpadapter.x-kom.pl 5 2026-06-05 2026-10-03 ok
master.x-kom.pl 5 2026-05-09 2026-09-06 ok
b2b-master.x-kom.pl 5 2026-05-29 2026-09-26 ok
backofficeapiwdpub-master.x-kom.pl 4 2026-05-17 2026-07-16 ok
promocje-master.x-kom.pl 5 2026-05-24 2026-09-21 ok
xkomauth-master.x-kom.pl 4 2026-04-20 2026-08-18 ok
giftcardapi-master.x-kom.pl 4 2026-04-20 2026-08-18 ok
backofficeapi-master.x-kom.pl 4 2026-04-20 2026-08-18 ok
mobileapi-master.x-kom.pl 4 2026-04-20 2026-08-18 ok
promoapi-master.x-kom.pl 5 2026-05-24 2026-09-21 ok
newsapi-master.x-kom.pl 4 2026-05-28 2026-07-27 ok
ap-master.x-kom.pl 5 2026-05-14 2026-09-11 ok
elasticsearchupdater-master.x-kom.pl 4 2026-04-14 2026-08-12 ok
engraver-master.x-kom.pl 4 2026-05-19 2026-07-18 ok
contentmoderator-master.x-kom.pl 4 2026-05-28 2026-07-27 ok
dotpayurlcservices-master.x-kom.pl 5 2026-05-04 2026-09-01 ok
giftcardintegrationservices-master.x-kom.pl 5 2026-05-16 2026-09-12 ok
assets-master.x-kom.pl 5 2026-05-30 2026-09-27 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/x-kom.pl.

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/x-kom.pl.