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) · 523 ms

HostCertsFirst seenLast seenDNS
localfalcon.com 38 2026-04-23 2026-10-07 ok
*.localfalcon.com 25 2026-04-24 2026-10-07 —
lf-static-v2.localfalcon.com 1 2025-11-30 2025-11-30 ok
lf-export-v2.localfalcon.com 1 2025-12-07 2025-12-07 ok
pia.localfalcon.com 11 2026-05-01 2026-10-04 ok
www.pia.localfalcon.com 5 2026-05-06 2026-09-13 ok
data.localfalcon.com 8 2026-05-06 2026-09-22 ok
lf-data.localfalcon.com 2 2026-03-15 2026-08-15 ok
lf-campaign-data.localfalcon.com 2 2025-10-08 2026-09-08 ok
staging.data.localfalcon.com 5 2026-08-12 2026-09-15 nodata
dev.data.localfalcon.com 1 2026-09-22 2026-09-22 ok
static.localfalcon.com 8 2026-05-24 2026-09-22 ok
staging.static.localfalcon.com 2 2026-08-12 2026-08-12 nodata
dev.static.localfalcon.com 1 2026-09-22 2026-09-22 ok
mta-sts.lf.read.localfalcon.com 4 2026-04-20 2026-08-17 ok
temple.localfalcon.com 5 2026-05-27 2026-09-26 ok
dave.localfalcon.com 5 2026-05-23 2026-09-22 ok
pdf.localfalcon.com 6 2026-04-11 2026-09-22 ok
dev.pdf.localfalcon.com 1 2026-09-22 2026-09-22 ok
staging.localfalcon.com 6 2026-05-23 2026-07-27 ok
lf-ai-staging.localfalcon.com 2 2025-08-26 2026-07-27 ok
api-staging.localfalcon.com 7 2026-05-19 2026-09-21 ok
mcp-staging.localfalcon.com 12 2026-04-12 2026-10-07 ok
data.staging.localfalcon.com 6 2026-05-06 2026-07-27 nxdomain
mail.data.staging.localfalcon.com 4 2026-05-27 2026-07-27 nxdomain
www.data.staging.localfalcon.com 4 2026-05-27 2026-07-27 nxdomain
static.staging.localfalcon.com 6 2026-05-24 2026-07-27 nxdomain
mail.static.staging.localfalcon.com 4 2026-05-27 2026-07-27 nxdomain
www.static.staging.localfalcon.com 4 2026-05-27 2026-07-27 nxdomain
retrieve.staging.localfalcon.com 4 2026-05-27 2026-07-27 nxdomain
mail.retrieve.staging.localfalcon.com 4 2026-05-27 2026-07-27 nxdomain
www.retrieve.staging.localfalcon.com 4 2026-05-27 2026-07-27 nxdomain
pdf.staging.localfalcon.com 5 2026-04-11 2026-07-27 nxdomain
mail.pdf.staging.localfalcon.com 4 2026-05-27 2026-07-27 nxdomain
www.pdf.staging.localfalcon.com 4 2026-05-27 2026-07-27 nxdomain
api.staging.localfalcon.com 6 2026-05-19 2026-07-27 nxdomain
mail.api.staging.localfalcon.com 4 2026-05-27 2026-07-27 nxdomain
www.api.staging.localfalcon.com 4 2026-05-27 2026-07-27 nxdomain
internal.staging.localfalcon.com 6 2026-05-22 2026-07-27 nxdomain
mail.internal.staging.localfalcon.com 4 2026-05-27 2026-07-27 nxdomain
www.internal.staging.localfalcon.com 4 2026-05-27 2026-07-27 nxdomain
mail.staging.localfalcon.com 4 2026-05-27 2026-07-27 nxdomain
app.staging.localfalcon.com 2 2026-08-13 2026-08-14 ok
reports.staging.localfalcon.com 6 2026-05-16 2026-07-27 nxdomain
mail.reports.staging.localfalcon.com 4 2026-05-27 2026-07-27 nxdomain
www.reports.staging.localfalcon.com 4 2026-05-27 2026-07-27 nxdomain
export.staging.localfalcon.com 6 2026-05-21 2026-07-27 nxdomain
mail.export.staging.localfalcon.com 4 2026-05-27 2026-07-27 nxdomain
www.export.staging.localfalcon.com 4 2026-05-27 2026-07-27 nxdomain
www.staging.localfalcon.com 6 2026-05-23 2026-07-27 nxdomain
marketing.localfalcon.com 5 2026-05-07 2026-08-14 ok
oauth.localfalcon.com 5 2026-04-27 2026-08-27 ok
lf-ai.localfalcon.com 2 2025-07-10 2026-06-10 ok
api.localfalcon.com 3 2025-12-11 2026-08-28 ok
lf-api.localfalcon.com 2 2025-08-09 2026-07-10 ok
staging.api.localfalcon.com 4 2026-08-12 2026-08-25 nodata
dev.api.localfalcon.com 1 2026-09-21 2026-09-21 ok
internal.localfalcon.com 8 2026-05-22 2026-09-22 ok
lf-internal.localfalcon.com 5 2026-04-10 2026-10-01 ok
staging.internal.localfalcon.com 4 2026-08-12 2026-08-12 ok
dev.internal.localfalcon.com 1 2026-09-22 2026-09-22 ok
universal.localfalcon.com 5 2026-05-21 2026-08-24 ok
data.universal.localfalcon.com 5 2026-05-21 2026-08-24 ok
static.universal.localfalcon.com 5 2026-05-21 2026-08-24 ok
pdf.universal.localfalcon.com 5 2026-05-21 2026-08-24 ok
api.universal.localfalcon.com 5 2026-05-21 2026-08-24 ok
internal.universal.localfalcon.com 5 2026-05-21 2026-08-24 ok
mail.universal.localfalcon.com 3 2026-06-24 2026-08-24 ok
export.universal.localfalcon.com 5 2026-05-21 2026-08-24 ok
mail.export.universal.localfalcon.com 3 2026-06-24 2026-08-24 ok
www.export.universal.localfalcon.com 3 2026-06-24 2026-08-24 ok
www.universal.localfalcon.com 3 2026-06-24 2026-08-24 ok
links.email.localfalcon.com 12 2026-03-23 2026-09-16 ok
mta-sts.email.localfalcon.com 4 2026-04-19 2026-08-17 ok
emailurl.localfalcon.com 2 2026-03-11 2026-07-27 ok
falconcrawl.localfalcon.com 3 2026-04-16 2026-09-16 ok
staging.falconcrawl.localfalcon.com 1 2026-07-02 2026-07-02 ok
shaun.localfalcon.com 4 2026-04-17 2026-08-17 ok
mcp.localfalcon.com 12 2026-04-29 2026-08-25 ok
dh-dev-mcp.localfalcon.com 10 2026-04-19 2026-08-15 ok
app.localfalcon.com 2 2026-08-17 2026-08-17 ok
staging.app.localfalcon.com 2 2026-08-14 2026-08-14 ok
dev.app.localfalcon.com 1 2026-08-14 2026-08-14 ok
trigger.localfalcon.com 20 2026-07-02 2026-07-07 ok
lf-data-ecs.localfalcon.com 1 2025-11-23 2025-11-23 ok
lf-pdf-ecs.localfalcon.com 1 2025-11-09 2025-11-09 ok
staging-ecs.localfalcon.com 1 2026-01-07 2026-01-07 ok
lf-api-ecs.localfalcon.com 4 2025-11-04 2026-10-05 ok
lf-internal-ecs.localfalcon.com 3 2025-10-22 2026-09-22 ok
lf-render-ecs.localfalcon.com 3 2025-09-22 2026-08-23 ok
lf-crons-ecs.localfalcon.com 2 2025-08-12 2026-07-13 ok
docs.localfalcon.com 8 2026-04-18 2026-08-14 ok
sales.localfalcon.com 5 2026-05-28 2026-09-27 ok
crons.localfalcon.com 4 2026-06-03 2026-10-03 ok
partners.localfalcon.com 5 2026-05-02 2026-09-03 ok
lf-chromeless.localfalcon.com 1 2026-01-10 2026-01-10 ok
assets.localfalcon.com 1 2026-07-14 2026-07-14 ok
reports.localfalcon.com 6 2026-05-16 2026-07-27 ok
lf-reports.localfalcon.com 2 2025-08-18 2026-07-19 ok
staging.reports.localfalcon.com 2 2026-08-12 2026-08-12 nodata

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/localfalcon.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/localfalcon.com.