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.

53 hosts · 399 ms

HostCertsFirst seenLast seenDNS
resmed.com.au 5 2026-05-31 2026-09-28 ok
*.resmed.com.au 1 2026-01-25 2026-01-25 —
rdcmodule-formal1.resmed.com.au 2 2025-08-04 2026-07-05 ok
rdcmodule-exp1.resmed.com.au 2 2025-08-04 2026-07-05 ok
rdcmodule-formal2.resmed.com.au 2 2025-08-04 2026-07-05 ok
shop.au-uat2.resmed.com.au 7 2026-04-17 2026-08-27 ok
account.au-uat2.resmed.com.au 7 2026-04-17 2026-08-27 ok
brand.resmed.com.au 4 2026-06-04 2026-10-02 ok
byod.resmed.com.au 4 2025-10-23 2026-08-12 ok
sc-lite.resmed.com.au 2 2025-08-14 2025-11-18 ok
staging.resmed.com.au 3 2026-09-06 2026-09-08 nodata
selfie-screening.resmed.com.au 1 2026-06-30 2026-06-30 ok
selfie-screening-stg.resmed.com.au 1 2026-06-30 2026-06-30 ok
connect-shop-stg.resmed.com.au 1 2026-01-27 2026-01-27 ok
connect-shop-erp-stg.resmed.com.au 1 2026-01-27 2026-01-27 ok
selfie-api.resmed.com.au 2 2025-08-31 2026-08-01 ok
deepbreathing-api.resmed.com.au 2 2026-03-03 2026-07-19 ok
selfie-ai-api.resmed.com.au 2 2025-11-12 2025-11-12 ok
pharma-selfiescreener-api.resmed.com.au 2 2026-02-26 2026-07-29 ok
selfiecollect-api.resmed.com.au 2 2026-03-30 2026-08-30 ok
rivi.resmed.com.au 8 2026-04-15 2026-08-11 ok
mail.resmed.com.au 2 2025-07-16 2026-07-20 ok
cloud.email.resmed.com.au 1 2025-10-24 2025-10-24 ok
image.email.resmed.com.au 7 2025-06-16 2026-07-04 ok
click.email.resmed.com.au 2 2025-10-15 2026-10-02 ok
view.email.resmed.com.au 2 2025-10-15 2026-10-02 ok
retail.resmed.com.au 11 2026-04-17 2026-08-13 ok
dawn.resmed.com.au 5 2026-04-18 2026-09-09 ok
shop.resmed.com.au 15 2026-04-13 2026-09-25 ok
connect-shop.resmed.com.au 1 2026-01-28 2026-01-28 ok
connect-shop-erp.resmed.com.au 1 2026-01-28 2026-01-28 ok
selfiescreener.resmed.com.au 2 2025-08-29 2026-07-30 ok
pharma-selfiescreener.resmed.com.au 3 2026-02-25 2026-07-28 ok
www.pharma-selfiescreener.resmed.com.au 5 2026-05-03 2026-09-01 ok
ai-selfiescreener.resmed.com.au 2 2025-11-11 2025-11-11 nodata
autodiscover.resmed.com.au 2 2025-07-16 2026-07-20 ok
au1-mrs.resmed.com.au 2 2025-07-16 2026-07-20 ok
selfie-api-uat.resmed.com.au 2 2025-09-08 2026-08-09 ok
shopify-au-uat.resmed.com.au 15 2026-04-12 2026-09-26 ok
selfiecollect.resmed.com.au 2 2026-03-30 2026-08-30 ok
sleepassessment.resmed.com.au 4 2026-06-05 2026-10-04 ok
selfiescreener-event.resmed.com.au 1 2026-06-04 2026-06-04 ok
account.resmed.com.au 9 2026-04-19 2026-08-28 ok
sst.resmed.com.au 11 2026-04-17 2026-08-15 ok
load.sst.resmed.com.au 14 2026-04-16 2026-08-12 ok
selfie-screening-dev.resmed.com.au 1 2026-04-20 2026-04-20 ok
connect-shop-dev.resmed.com.au 3 2025-11-27 2026-09-08 ok
*.connect-shop-dev.resmed.com.au 1 2026-04-01 2026-04-01 —
connect-shop-erp-dev.resmed.com.au 3 2026-01-27 2026-09-08 ok
selfiescreener-dev.resmed.com.au 2 2025-09-09 2026-08-10 ok
shop.au-dev.resmed.com.au 14 2026-04-14 2026-08-26 ok
account.au-dev.resmed.com.au 7 2026-04-18 2026-08-27 ok
www.resmed.com.au 13 2026-05-28 2026-09-24 ok

Programmatic access, with DNS A records: API GET /v1/hosts/resmed.com.au (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/resmed.com.au.