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) · 445 ms

HostCertsFirst seenLast seenDNS
expensify.com 49 2026-04-25 2026-10-04 ok
*.expensify.com 42 2026-04-25 2026-10-04 —
build-2404-1.expensify.com 5 2026-05-04 2026-09-07 ok
build1.expensify.com 5 2026-05-04 2026-09-07 ok
apt-mirror1.expensify.com 5 2026-05-11 2026-09-14 ok
staging-integrations1.expensify.com 5 2026-05-11 2026-09-14 ok
netbox1.expensify.com 4 2026-06-01 2026-10-05 ok
use2.expensify.com 8 2026-07-27 2026-09-24 ok
www.use2.expensify.com 5 2026-06-04 2026-09-17 ok
staging2.expensify.com 6 2026-07-27 2026-09-25 ok
bills2.expensify.com 6 2026-07-27 2026-09-25 ok
mta4.expensify.com 5 2026-05-11 2026-09-14 ok
mta5.expensify.com 5 2026-05-11 2026-09-14 ok
mta6.expensify.com 5 2026-05-11 2026-09-14 ok
bofa.expensify.com 4 2025-10-07 2025-12-09 ok
www.bofa.expensify.com 4 2025-10-07 2025-12-09 ok
mta.expensify.com 5 2026-05-11 2026-09-14 ok
static.expensify.com 2 2025-08-26 2026-07-27 ok
approved.expensify.com 8 2026-07-27 2026-09-24 ok
helpold.expensify.com 2 2026-07-25 2026-07-25 ok
salesforce.expensify.com 8 2026-07-27 2026-09-24 ok
mobile.expensify.com 4 2026-06-08 2026-08-17 ok
are.expensify.com 13 2026-05-11 2026-09-25 ok
we-are.expensify.com 5 2026-05-11 2026-09-14 ok
we.are.expensify.com 5 2026-05-31 2026-09-13 ok
www.we.are.expensify.com 6 2026-04-11 2026-10-03 ok
weare.expensify.com 5 2026-05-11 2026-09-14 ok
nycshore.expensify.com 2 2026-07-19 2026-07-19 ok
www.nycshore.expensify.com 2 2026-07-19 2026-07-19 ok
offshore.expensify.com 6 2026-06-07 2026-09-20 ok
www.offshore.expensify.com 5 2026-05-15 2026-09-08 ok
onshore.expensify.com 5 2026-04-29 2026-08-22 ok
www.onshore.expensify.com 5 2026-04-30 2026-08-23 ok
secure.expensify.com 5 2026-05-11 2026-09-14 ok
staging-secure.expensify.com 5 2026-05-11 2026-09-14 ok
use.expensify.com 8 2026-07-27 2026-09-24 ok
www.use.expensify.com 5 2026-05-27 2026-09-09 ok
staging.expensify.com 5 2026-05-11 2026-09-14 ok
pr-testing.expensify.com 8 2026-05-28 2026-09-23 ok
*.pr-testing.expensify.com 8 2026-05-28 2026-09-23 —
helptesting.expensify.com 5 2026-05-25 2026-09-07 ok
www.helptesting.expensify.com 5 2026-05-22 2026-09-09 ok
blog.expensify.com 6 2026-07-27 2026-09-24 ok
research.expensify.com 8 2026-07-27 2026-09-24 ok
wiki.expensify.com 11 2026-05-09 2026-09-24 ok
api.expensify.com 13 2026-05-11 2026-09-25 ok
fp-api.expensify.com 5 2026-05-04 2026-09-01 ok
mailapi.expensify.com 8 2026-07-27 2026-09-24 ok
importapi.expensify.com 5 2026-05-11 2026-09-14 ok
fp-back.expensify.com 4 2026-06-07 2026-10-05 ok
travel.expensify.com 18 2026-05-03 2026-09-24 ok
*.travel.expensify.com 1 2026-02-12 2026-02-12 —
staging.travel.expensify.com 18 2026-05-03 2026-09-24 ok
email.expensify.com 5 2026-05-02 2026-08-30 ok
vl.expensify.com 4 2026-04-13 2026-08-17 ok
mcp.vl.expensify.com 2 2026-05-29 2026-05-29 nxdomain
*.mcp.vl.expensify.com 2 2026-05-29 2026-05-29 —
vm.expensify.com 2 2026-08-06 2026-08-06 ok
fp-admin.expensify.com 5 2026-05-04 2026-09-01 ok
go.expensify.com 8 2026-07-27 2026-09-24 ok
so.expensify.com 6 2026-07-27 2026-09-24 ok
help.expensify.com 18 2026-05-08 2026-09-24 ok
newhelp.expensify.com 14 2026-05-14 2026-09-24 ok
comp.expensify.com 13 2026-05-11 2026-09-24 ok
shop.expensify.com 15 2026-05-23 2026-10-02 ok
signup.expensify.com 5 2026-05-06 2026-08-29 ok
www.signup.expensify.com 6 2026-04-09 2026-09-21 ok
staging-viewer.expensify.com 5 2026-05-11 2026-09-14 ok
ir.expensify.com 16 2026-05-15 2026-09-21 ok
git-mirror.expensify.com 5 2026-05-11 2026-09-14 ok
apt-mirror.expensify.com 5 2026-05-11 2026-09-14 ok
jobs.expensify.com 5 2026-05-11 2026-09-14 ok
metrics.expensify.com 6 2026-07-27 2026-09-24 ok
es.expensify.com 2 2026-05-11 2026-05-11 ok
pdfs.expensify.com 5 2026-05-11 2026-09-14 ok
staging-pdfs.expensify.com 5 2026-05-11 2026-09-14 ok
graphs.expensify.com 5 2026-05-11 2026-09-14 ok
bills.expensify.com 6 2026-07-27 2026-09-24 ok
email.bills.expensify.com 8 2026-07-27 2026-09-24 ok
integrations.expensify.com 7 2026-05-11 2026-09-21 ok
staging-integrations.expensify.com 5 2026-05-11 2026-09-14 ok
partners.expensify.com 5 2026-05-06 2026-08-29 ok
www.partners.expensify.com 5 2026-05-14 2026-09-06 ok
investors.expensify.com 16 2026-05-15 2026-09-21 ok
stats.expensify.com 5 2026-05-11 2026-09-14 ok
lets.expensify.com 8 2026-07-27 2026-09-24 ok
assets.expensify.com 2 2026-04-24 2026-09-24 ok
status.expensify.com 8 2026-05-24 2026-08-24 ok
chat.expensify.com 9 2026-02-13 2026-09-24 ok
*.chat.expensify.com 8 2026-07-27 2026-09-24 —
www.chat.expensify.com 8 2026-07-27 2026-09-24 ok
consultant.expensify.com 5 2026-05-15 2026-09-08 ok
www.consultant.expensify.com 5 2026-05-13 2026-09-05 ok
bankimport.expensify.com 4 2026-01-23 2026-02-09 ok
www.bankimport.expensify.com 4 2026-01-23 2026-02-09 ok
integrations1-east.expensify.com 7 2026-05-11 2026-09-21 ok
staging-integrations1-east.expensify.com 5 2026-05-11 2026-09-14 ok
integrations2-east.expensify.com 7 2026-05-11 2026-09-21 ok
integrations3-east.expensify.com 7 2026-05-11 2026-09-21 ok
integrations4-east.expensify.com 7 2026-05-11 2026-09-21 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/expensify.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/expensify.com.