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.

100 hosts (first page) · 215 ms

HostCertsFirst seenLast seen
nextiva.com 4 2026-02-11 2026-06-23
*.nextiva.com 2 2026-02-11 2026-02-11
recorder11.nextiva.com 4 2026-06-23 2026-06-23
recorder12.nextiva.com 3 2026-06-23 2026-06-23
recorderhc2.nextiva.com 3 2026-06-23 2026-06-23
auth2.nextiva.com 4 2026-06-23 2026-06-23
recorder2.nextiva.com 2 2026-06-23 2026-06-23
recorder13.nextiva.com 3 2026-06-23 2026-06-23
np3.nextiva.com 3 2026-06-23 2026-06-23
recorder3.nextiva.com 3 2026-06-23 2026-06-23
recorder14.nextiva.com 3 2026-06-23 2026-06-23
recorder4.nextiva.com 3 2026-06-23 2026-06-23
recorder15.nextiva.com 4 2026-06-23 2026-06-23
recorder5.nextiva.com 3 2026-06-23 2026-06-23
recorder6.nextiva.com 4 2026-06-23 2026-06-23
lab.nextiva.com 1 2026-02-11 2026-02-11
*.lab.nextiva.com 2 2026-01-05 2026-02-11
qasip.lab.nextiva.com 1 2026-01-05 2026-01-05
engsip.lab.nextiva.com 1 2026-01-05 2026-01-05
devsip.lab.nextiva.com 1 2026-01-05 2026-01-05
kb.nextiva.com 3 2026-06-23 2026-06-23
ec.nextiva.com 4 2026-06-23 2026-06-23
nhc.nextiva.com 1 2026-05-20 2026-05-20
*.nhc.nextiva.com 1 2026-05-20 2026-05-20
dphc.nextiva.com 1 2026-02-11 2026-02-11
mtls.dphc.nextiva.com 1 2026-02-11 2026-02-11
recorderhc.nextiva.com 4 2026-06-23 2026-06-23
ldap-sync.nextiva.com 2 2025-07-23 2026-07-22
rc.nextiva.com 3 2026-06-23 2026-06-23
webrtc.nextiva.com 3 2026-05-16 2026-08-30
callerid.nextiva.com 4 2026-06-23 2026-06-23
xbertbasicoutbound.nextiva.com 2 2026-09-29 2026-09-29
nextpendodashboard.nextiva.com 1 2026-09-22 2026-09-22
be.nextiva.com 1 2026-05-20 2026-05-20
*.be.nextiva.com 1 2026-05-20 2026-05-20
nifi-prd-80.be.nextiva.com 1 2026-05-20 2026-05-20
nifi-prd-83.be.nextiva.com 1 2026-05-20 2026-05-20
nifi-prd-84.be.nextiva.com 1 2026-05-20 2026-05-20
nifi-prd-85.be.nextiva.com 1 2026-05-20 2026-05-20
nifi-prd-86.be.nextiva.com 1 2026-05-20 2026-05-20
static.be.nextiva.com 4 2026-06-23 2026-06-23
api.be.nextiva.com 4 2026-06-23 2026-06-23
ai-employee.nextiva.com 3 2026-06-23 2026-06-23
manage.nextiva.com 3 2026-06-23 2026-06-23
fsrre.nextiva.com 10 2026-05-05 2026-08-31
rise.nextiva.com 3 2026-06-23 2026-06-23
authenticate.nextiva.com 3 2026-06-23 2026-06-23
api-affiliate.nextiva.com 2 2026-06-23 2026-06-23
asksteve.nextiva.com 5 2025-09-02 2026-09-18
www.asksteve.nextiva.com 1 2025-09-02 2025-09-02
nextconreg.nextiva.com 1 2025-11-21 2025-11-21
eig.nextiva.com 2 2026-06-23 2026-06-23
img.nextiva.com 7 2026-06-25 2026-10-02
onboarding.nextiva.com 2 2026-06-23 2026-06-23
trunking.nextiva.com 2 2026-06-23 2026-06-23
porting.nextiva.com 4 2026-06-23 2026-06-23
dph.nextiva.com 3 2026-02-11 2026-06-19
mtls.dph.nextiva.com 3 2026-02-11 2026-06-19
auth.nextiva.com 3 2026-06-23 2026-06-23
xbertauth.nextiva.com 4 2025-08-15 2026-07-29
south.nextiva.com 2 2026-04-20 2026-10-09
*.south.nextiva.com 2 2026-04-20 2026-10-09
supportwiki.nextiva.com 4 2026-06-23 2026-06-23
api.nextiva.com 4 2026-06-23 2026-06-23
cti.nextiva.com 3 2026-06-23 2026-06-23
link.nextiva.com 5 2026-05-14 2026-09-12
trial.nextiva.com 10 2026-05-18 2026-09-13
portal.nextiva.com 3 2026-06-23 2026-06-23
trunkingportal.nextiva.com 4 2026-06-23 2026-06-23
partnerportal.nextiva.com 3 2026-06-23 2026-06-23
xbertportal.nextiva.com 4 2025-08-15 2026-07-29
faxportal.nextiva.com 4 2026-06-23 2026-06-23
channel.nextiva.com 3 2026-06-23 2026-06-23
go.channel.nextiva.com 8 2026-05-06 2026-09-01
m.nextiva.com 3 2026-06-23 2026-06-23
vct-rm.nextiva.com 3 2026-06-23 2026-06-23
login.nextiva.com 3 2026-06-23 2026-06-23
dphadmin.nextiva.com 3 2026-02-11 2026-06-19
www.join.nextiva.com 5 2026-05-27 2026-08-18
edwin.nextiva.com 3 2026-06-23 2026-06-23
nextcon.nextiva.com 4 2026-06-23 2026-06-23
www.nextcon.nextiva.com 4 2026-06-23 2026-06-23
provision.nextiva.com 4 2026-06-23 2026-06-23
prod-thrio.nextiva.com 9 2026-05-09 2026-09-10
sso.nextiva.com 4 2025-09-17 2026-10-05
dcp.nextiva.com 1 2026-05-21 2026-05-21
gcp.nextiva.com 2 2026-04-20 2026-10-09
*.gcp.nextiva.com 2 2026-04-20 2026-10-09
idp.nextiva.com 3 2026-06-23 2026-06-23
business-voip.nextiva.com 4 2026-06-23 2026-06-23
prod-wpvip.nextiva.com 8 2026-04-19 2026-08-21
help.nextiva.com 1 2025-12-30 2025-12-30
recorder.nextiva.com 3 2026-06-23 2026-06-23
sms-broker.nextiva.com 3 2026-06-23 2026-06-23
reseller.nextiva.com 3 2026-06-23 2026-06-23
partner.nextiva.com 5 2026-05-14 2026-09-11
developer.nextiva.com 10 2026-06-05 2026-10-02
xbertcreator.nextiva.com 4 2025-08-15 2026-07-29
recordersr.nextiva.com 4 2026-06-23 2026-06-23
vct-bw-metrics.nextiva.com 2 2026-06-23 2026-06-23

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/nextiva.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/nextiva.com.