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.

15 hosts · 286 ms

Download CSV
HostCertsFirst seenLast seen
lucidchart.com 13 2025-09-10 2026-09-24
*.lucidchart.com 13 2025-07-24 2026-09-10
*.office.lucidchart.com 2 2025-07-24 2026-06-24
groove.lucidchart.com 5 2026-05-13 2026-09-11
outreach.lucidchart.com 2 2026-10-07 2026-10-07
api.lucidchart.com 3 2025-07-15 2026-06-15
features-cdn.lucidchart.com 4 2026-06-02 2026-10-12
assets-cdn.lucidchart.com 5 2026-05-21 2026-09-30
app.lucidchart.com 5 2026-01-10 2026-09-09
*.app.lucidchart.com 14 2025-09-30 2026-09-10
cdn-font-service-public.app.lucidchart.com 4 2026-06-02 2026-10-12
cdn-image-service.app.lucidchart.com 5 2026-05-26 2026-10-05
static-assets.lucidchart.com 5 2026-05-03 2026-09-12
cdn-cashy-static-assets.lucidchart.com 7 2025-06-19 2026-09-15
www.lucidchart.com 5 2026-05-27 2026-10-06

Programmatic access: API GET /v1/hosts/lucidchart.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/lucidchart.com.