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.

77 hosts · 436 ms

HostCertsFirst seenLast seenDNS
thetourguy.com 21 2025-11-14 2026-10-01 ok
*.thetourguy.com 21 2025-11-14 2026-10-01 —
ec1.thetourguy.com 3 2026-05-10 2026-09-22 ok
meta.thetourguy.com 2 2026-02-14 2026-06-06 ok
ec1-lb.thetourguy.com 1 2026-01-30 2026-01-30 nxdomain
welcomestafffe-lb.thetourguy.com 1 2026-02-05 2026-02-05 nxdomain
welcomestaff-lb.thetourguy.com 1 2026-02-05 2026-02-05 nxdomain
trg-lb.thetourguy.com 1 2026-01-30 2026-01-30 nxdomain
welcomestaffapi-lb.thetourguy.com 1 2026-02-05 2026-02-05 nxdomain
e2e.thetourguy.com 2 2026-02-11 2026-06-24 ok
priceengine.thetourguy.com 2 2026-01-18 2026-06-12 ok
api-europe.thetourguy.com 2 2026-03-29 2026-08-07 ok
crm-europe.thetourguy.com 3 2026-03-30 2026-08-08 ok
vouchers-europe.thetourguy.com 2 2026-03-28 2026-08-07 ok
hangfire.thetourguy.com 2 2026-01-13 2026-06-10 ok
ecomfe-core.thetourguy.com 2 2026-01-12 2026-05-31 ok
generalpurpose.thetourguy.com 3 2026-05-14 2026-09-28 ok
paygate.thetourguy.com 2 2026-01-12 2026-05-31 ok
welcomestaff.thetourguy.com 2 2026-01-13 2026-06-10 ok
capig.thetourguy.com 1 2025-09-04 2025-09-04 nodata
stg.thetourguy.com 3 2026-05-12 2026-09-24 ok
www.stg.thetourguy.com 3 2026-05-14 2026-09-26 ok
ec1stg.thetourguy.com 2 2026-01-12 2026-06-10 ok
solrsearch-lbstg.thetourguy.com 2 2026-05-04 2026-09-11 ok
solrsearchstg.thetourguy.com 2 2026-01-13 2026-06-10 ok
apistg.thetourguy.com 3 2026-05-14 2026-09-26 ok
ecomapistg.thetourguy.com 3 2026-05-20 2026-10-01 ok
crmstg.thetourguy.com 3 2026-05-14 2026-09-28 ok
vouchersstg.thetourguy.com 2 2026-05-17 2026-09-30 ok
usersstg.thetourguy.com 3 2026-05-14 2026-09-26 ok
red-ttg.thetourguy.com 2 2026-02-19 2026-06-28 ok
gtm-ttg.thetourguy.com 4 2026-04-25 2026-10-04 ok
solrsearch.thetourguy.com 1 2026-01-19 2026-01-19 ok
i.thetourguy.com 5 2026-04-23 2026-10-03 ok
wiki.thetourguy.com 3 2026-05-22 2026-10-04 ok
api.thetourguy.com 3 2026-05-14 2026-09-26 ok
mobileapi.thetourguy.com 2 2026-01-12 2026-05-29 ok
welcomestaffapi.thetourguy.com 2 2026-01-18 2026-06-12 ok
ecomapi.thetourguy.com 3 2026-05-11 2026-09-23 ok
myordersapi.thetourguy.com 3 2026-05-13 2026-09-26 ok
partnersportal.thetourguy.com 1 2026-09-25 2026-09-25 ok
crm.thetourguy.com 3 2026-05-17 2026-09-30 ok
staticcdn.thetourguy.com 3 2026-05-15 2026-09-28 ok
crm-api-demo.thetourguy.com 2 2026-02-22 2026-07-02 ok
crm-demo.thetourguy.com 2 2026-02-22 2026-07-02 ok
vouchers-demo.thetourguy.com 3 2026-03-31 2026-08-08 ok
help.thetourguy.com 20 2026-05-23 2026-09-18 ok
ptr.thetourguy.com 2 2026-09-23 2026-09-23 ok
analytics.thetourguy.com 3 2026-05-14 2026-09-27 ok
feeds.thetourguy.com 3 2026-05-17 2026-09-29 ok
vouchers.thetourguy.com 3 2026-05-17 2026-09-30 ok
suppliers.thetourguy.com 3 2026-05-17 2026-09-30 ok
users.thetourguy.com 3 2026-05-14 2026-09-26 ok
mobileusers.thetourguy.com 2 2026-01-12 2026-05-31 ok
agents.thetourguy.com 14 2026-04-10 2026-10-04 ok
solrsearch-us.thetourguy.com 3 2026-05-03 2026-09-10 ok
solrsearch-eu.thetourguy.com 3 2026-05-03 2026-09-10 ok
dev.thetourguy.com 3 2026-05-12 2026-09-24 ok
www.dev.thetourguy.com 2 2026-05-23 2026-10-04 ok
ec1dev.thetourguy.com 3 2026-05-13 2026-09-25 ok
priceenginedev.thetourguy.com 2 2026-01-18 2026-06-12 ok
generalpurposedev.thetourguy.com 3 2026-05-14 2026-09-26 ok
paygatedev.thetourguy.com 2 2026-01-13 2026-06-11 ok
welcomestaffdev.thetourguy.com 2 2026-01-13 2026-06-10 ok
apidev.thetourguy.com 3 2026-05-17 2026-09-30 ok
welcomestaffapidev.thetourguy.com 2 2026-01-13 2026-06-10 ok
ecomapidev.thetourguy.com 3 2026-05-13 2026-09-25 ok
myordersapidev.thetourguy.com 3 2026-05-12 2026-09-24 ok
crmdev.thetourguy.com 2 2026-05-17 2026-10-01 ok
scdndev.thetourguy.com 2 2026-02-11 2026-06-23 ok
ptrdev.thetourguy.com 2 2026-09-24 2026-09-24 ok
feedsdev.thetourguy.com 3 2026-05-11 2026-09-24 ok
myordersdev.thetourguy.com 3 2026-05-12 2026-09-24 ok
vouchersdev.thetourguy.com 3 2026-05-17 2026-10-01 ok
suppliersdev.thetourguy.com 3 2026-05-17 2026-09-30 ok
usersdev.thetourguy.com 3 2026-05-13 2026-09-25 ok
www.thetourguy.com 3 2026-05-14 2026-09-26 ok

Programmatic access, with DNS A records: API GET /v1/hosts/thetourguy.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/thetourguy.com.