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) · 327 ms

HostCertsFirst seenLast seen
amazon.com 184 2025-07-22 2026-09-20
bizum-beta-outbound-jws-kid-0.amazon.com 3 2025-10-16 2026-10-05
bizum-prod-outbound-jws-kid-0.amazon.com 2 2025-10-22 2026-01-01
nitchow-testrenew-100.amazon.com 6 2025-07-22 2025-07-22
ldapv2-prod-aws100.amazon.com 1 2025-11-03 2025-11-03
ldap-aws100.amazon.com 5 2025-11-03 2026-08-10
ldapv2-prod-primary-aws100.amazon.com 1 2025-11-03 2025-11-03
peijiexitest00.amazon.com 1 2026-08-17 2026-08-17
aero-standard-testing-10.amazon.com 3 2025-09-30 2026-08-31
iad-use1-wd-psn-10.amazon.com 1 2025-10-29 2025-10-29
pdx-usw2-wd-psn-10.amazon.com 1 2025-10-29 2025-10-29
saby-speed-test-10.amazon.com 2 2026-03-12 2026-03-12
nitchow-testrenew-10.amazon.com 6 2025-07-22 2025-07-22
jiayxie-2025-0811-v10.amazon.com 2 2025-08-11 2025-08-12
aero-standard-testing-20.amazon.com 2 2025-10-06 2026-09-06
nitchow-testrenew-20.amazon.com 8 2025-07-22 2025-07-22
aws-cog-gamma-bjs-dragon-63001.bjs20.amazon.com 1 2025-10-02 2025-10-02
nitchow-testrenew-30.amazon.com 5 2025-07-22 2025-07-22
nitchow-testrenew-40.amazon.com 8 2025-07-22 2025-07-22
nitchow-testrenew-50.amazon.com 4 2025-07-22 2025-07-22
52.119.162.250.amazon.com 3 2025-08-22 2026-07-28
nitchow-testrenew-60.amazon.com 8 2025-07-22 2025-07-22
dms360.amazon.com 9 2025-06-26 2026-09-25
nitchow-testrenew-70.amazon.com 3 2025-07-22 2025-07-22
nitchow-testrenew-80.amazon.com 7 2025-07-22 2025-07-22
nitchow-test-ecdsa-90.amazon.com 1 2025-07-30 2025-07-30
nitchow-testrenew-90.amazon.com 6 2025-07-22 2025-07-22
nitchow-test-ecdsa-990.amazon.com 1 2025-08-20 2025-08-20
aero-standard-ntesting0.amazon.com 3 2026-03-24 2026-08-24
cname1-aero-standard-ntesting0.amazon.com 3 2026-03-24 2026-08-24
cname2-aero-standard-ntesting0.amazon.com 3 2026-03-24 2026-08-24
internal-origin-na-1.amazon.com 1 2025-08-27 2025-08-27
nitchow-test-ecdsa-1.amazon.com 1 2025-07-28 2025-07-28
mailrelay-us-east-1c-1.amazon.com 4 2025-08-28 2026-06-02
iad-use1-wd-tac-1.amazon.com 1 2025-10-29 2025-10-29
bizum-beta-outbound-jws-kid-1.amazon.com 4 2025-10-16 2026-10-05
bizum-prod-outbound-jws-kid-1.amazon.com 2 2025-10-22 2025-12-31
alexa-fe-pre-release-1.amazon.com 4 2025-09-26 2026-07-13
avs-proxy-pre-release-1.amazon.com 3 2025-09-24 2026-07-08
aero-standard-testing-1.amazon.com 3 2025-09-30 2026-08-31
opf-internal-testing-1.amazon.com 3 2025-08-21 2026-07-22
iad-use1-wd-pxg-1.amazon.com 1 2025-10-29 2025-10-29
iad66-co-pop-pxg-1.amazon.com 1 2025-10-29 2025-10-29
dashboard.glue.cn-north-1.amazon.com 1 2025-08-07 2025-08-07
*.dashboard.glue.cn-north-1.amazon.com 1 2025-08-07 2025-08-07
ec2-instance-connect.cn-north-1.amazon.com 2 2025-10-02 2026-07-12
ssmmessages.eu-north-1.amazon.com 2 2025-11-04 2026-06-22
*.aos.eu-north-1.amazon.com 1 2025-10-17 2025-10-17
elasticache-fips.eu-north-1.amazon.com 2 2025-11-05 2026-08-20
ec2-instance-connect.eu-north-1.amazon.com 2 2025-11-04 2026-08-03
ec2-instance-connect.me-south-1.amazon.com 2 2025-10-29 2026-06-04
s3express-control.dualstack.af-south-1.amazon.com 1 2026-09-01 2026-09-01
*.s3express-control.dualstack.af-south-1.amazon.com 1 2026-09-01 2026-09-01
es.af-south-1.amazon.com 5 2025-08-04 2026-07-10
logs.af-south-1.amazon.com 3 2025-09-30 2026-08-25
*.logs.af-south-1.amazon.com 3 2025-09-30 2026-08-25
ec2-instance-connect.af-south-1.amazon.com 2 2025-09-30 2026-07-18
cc-ap-south-1.amazon.com 2 2025-10-29 2026-06-22
contribute.ivs.ap-south-1.amazon.com 1 2025-09-22 2025-09-22
ec2-instance-connect.ap-south-1.amazon.com 2 2025-10-29 2026-06-12
*.aos.eu-south-1.amazon.com 1 2025-10-17 2025-10-17
ec2-instance-connect.eu-south-1.amazon.com 2 2025-10-07 2026-07-06
*.ddb.ca-central-1.amazon.com 5 2025-11-04 2026-08-01
prod.emrwal-fips.ca-central-1.amazon.com 2 2025-11-04 2026-08-18
preprod.emrwal-fips.ca-central-1.amazon.com 2 2025-10-16 2026-06-08
ec2-instance-connect.ca-central-1.amazon.com 2 2025-11-04 2026-06-24
ec2-instance-connect.me-central-1.amazon.com 2 2025-10-29 2026-07-09
ec2-instance-connect.il-central-1.amazon.com 2 2025-10-14 2026-06-20
unagi-eu-central-1.amazon.com 7 2025-11-03 2026-10-04
origin-unagi-eu-central-1.amazon.com 4 2025-11-03 2026-07-28
upx-security-eu-eu-central-1.amazon.com 5 2025-09-03 2026-08-04
s3express-control.dualstack.eu-central-1.amazon.com 1 2026-07-07 2026-07-07
*.s3express-control.dualstack.eu-central-1.amazon.com 1 2026-07-07 2026-07-07
es.eu-central-1.amazon.com 3 2025-10-17 2026-06-30
ec2-instance-connect.eu-central-1.amazon.com 2 2025-10-30 2026-06-13
upx-security-eu.eu-central-1.amazon.com 5 2025-08-06 2026-06-30
elasticache.mx-central-1.amazon.com 3 2025-11-04 2026-09-07
ec2-instance-connect.mx-central-1.amazon.com 2 2025-11-04 2026-09-05
dax.mx-central-1.amazon.com 3 2025-11-04 2026-09-07
vreproduce-dnsvalfail-1.amazon.com 2 2025-08-14 2025-08-14
cname1-vreproduce-dnsvalfail-1.amazon.com 1 2025-08-14 2025-08-14
cname2-vreproduce-dnsvalfail-1.amazon.com 1 2025-08-14 2025-08-14
aero-testing-curl-1.amazon.com 2 2025-10-14 2026-09-14
iad-use1-wd-pan-1.amazon.com 1 2025-10-29 2025-10-29
pdx-usw2-wd-pan-1.amazon.com 1 2025-10-29 2025-10-29
iad-ue-pan-1.amazon.com 2 2025-10-29 2026-06-09
iad-use1-wifi-pan-1.amazon.com 1 2025-10-29 2025-10-29
bom-aps1-wifi-pan-1.amazon.com 1 2025-10-29 2025-10-29
dub-euw1-wifi-pan-1.amazon.com 1 2025-10-29 2025-10-29
dub2-co-pop-pan-1.amazon.com 1 2025-10-29 2025-10-29
sea4-co-pop-pan-1.amazon.com 1 2025-11-04 2025-11-04
bom-aps-pan-1.amazon.com 2 2025-10-29 2026-07-14
fra-euc1-wifi-san-1.amazon.com 1 2025-10-29 2025-10-29
sin-apse1-wifi-san-1.amazon.com 1 2025-10-29 2025-10-29
pdx-usw2-wifi-san-1.amazon.com 1 2025-10-29 2025-10-29
fra53-co-pop-san-1.amazon.com 3 2025-07-18 2026-06-13
dub3-co-pop-san-1.amazon.com 1 2025-10-29 2025-10-29
iad4-co-pop-san-1.amazon.com 1 2025-10-29 2025-10-29
pdx-uw-san-1.amazon.com 2 2025-10-29 2026-06-27
sfo-usw1-wd-psn-1.amazon.com 1 2025-10-29 2025-10-29

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/amazon.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/amazon.com.