Find every subdomain
of a domain.

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

28 hosts · 249 ms

HostCertsFirst seenLast seen
lakeheadu.ca 11 2025-10-28 2026-09-23
*.lakeheadu.ca 6 2025-10-28 2025-11-05
oldap2.lakeheadu.ca 3 2026-03-30 2026-09-16
www.oldap2.lakeheadu.ca 3 2026-03-30 2026-09-16
bookstore.lakeheadu.ca 4 2026-06-12 2026-08-21
megamationtrack.lakeheadu.ca 5 2026-05-18 2026-09-15
mycourselink.lakeheadu.ca 2 2025-10-26 2026-09-25
libcal.lakeheadu.ca 5 2026-05-25 2026-09-22
vision.lakeheadu.ca 5 2026-05-12 2026-09-09
equipaction.lakeheadu.ca 4 2026-04-17 2026-08-17
hello.lakeheadu.ca 2 2025-06-17 2026-05-18
oldap.lakeheadu.ca 2 2026-03-30 2026-09-16
www.oldap.lakeheadu.ca 2 2026-03-30 2026-09-16
*.erp.lakeheadu.ca 4 2025-10-26 2026-07-22
vcenter.lakeheadu.ca 2 2025-12-12 2025-12-17
www.vcenter.lakeheadu.ca 2 2025-12-12 2025-12-17
virtualtour.lakeheadu.ca 9 2025-07-07 2026-09-03
luathletics.lakeheadu.ca 2 2025-09-25 2026-08-26
libguides.lakeheadu.ca 5 2026-05-23 2026-09-19
galleries.lakeheadu.ca 6 2026-06-04 2026-08-23
libanswers.lakeheadu.ca 5 2026-05-25 2026-09-22
mysuccess.lakeheadu.ca 11 2026-05-29 2026-09-24
jss.lakeheadu.ca 2 2026-05-04 2026-10-04
offcampus.lakeheadu.ca 5 2026-05-05 2026-09-04
studentsupport.lakeheadu.ca 3 2026-05-06 2026-10-06
www.lakeheadu.ca 5 2026-05-26 2026-09-23
ezproxy.lakeheadu.ca 1 2025-10-31 2025-10-31
*.ezproxy.lakeheadu.ca 1 2025-10-31 2025-10-31

Programmatic access: API GET /v1/hosts/lakeheadu.ca (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/lakeheadu.ca.