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.

25 hosts · 352 ms

HostCertsFirst seenLast seenDNS
excel.com.do 1 2026-06-11 2026-06-11 ok
qa.excel.com.do 5 2026-04-17 2026-08-28 ok
sharepoint-api-qa.excel.com.do 4 2026-04-17 2026-08-27 ok
excelappmovilapi-qa.excel.com.do 3 2026-01-18 2026-06-11 ok
docusign-qa.excel.com.do 3 2026-04-28 2026-09-06 ok
claintegration-qa.excel.com.do 3 2026-05-11 2026-09-23 ok
appqa.excel.com.do 3 2026-03-31 2026-08-09 ok
sharepoint-api-prod.excel.com.do 2 2026-01-13 2026-06-10 ok
estadodecuentaapi.excel.com.do 2 2026-01-12 2026-06-01 ok
excelappmovilapi.excel.com.do 3 2026-05-12 2026-09-23 ok
feriacomercial.excel.com.do 2 2026-01-20 2026-06-11 ok
docusign.excel.com.do 3 2026-05-17 2026-09-30 ok
claintegration.excel.com.do 3 2026-05-11 2026-09-23 ok
uptimemon.excel.com.do 2 2026-03-05 2026-07-17 ok
app.excel.com.do 2 2026-01-17 2026-06-11 ok
reportes.excel.com.do 2 2026-01-12 2026-05-30 ok
fondosabiertos.excel.com.do 2 2026-01-26 2026-06-12 ok
dev.excel.com.do 4 2026-04-17 2026-08-27 ok
sharepoint-api-dev.excel.com.do 2 2026-01-13 2026-06-10 ok
excelappmovilapi-dev.excel.com.do 2 2026-01-12 2026-05-30 ok
docusign-dev.excel.com.do 2 2026-01-13 2026-06-11 ok
claintegration-dev.excel.com.do 2 2026-08-14 2026-08-14 ok
appdev.excel.com.do 2 2026-01-12 2026-06-01 ok
fondosabiertosdev.excel.com.do 3 2026-06-02 2026-08-18 nxdomain
www.excel.com.do 2 2026-01-13 2026-06-11 ok

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