DNS
THE CERTIFICATE BEHIND THE CONNECTION

TLS certificate checker.

Inspect SSL/TLS certificates for any public domain or subdomain.

Checks HTTPS on port 443, including subject alternative names, validity dates and the presented chain.

SSL certificate

TLSv1.3

zetservers.com · 104.21.48.197:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
CN=zetservers.com
Issuer
C=US O=Google Trust Services CN=WE1
Valid from
2026-09-08T17:53:58+00:00
Expires
2026-12-07T18:53:53+00:00
Days remaining
73
Serial (hex)
D94F109715C2CB4D0E320F38E8BD968F
Signature
ecdsa-with-SHA256
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:zetservers.com, DNS:*.zetservers.com

SHA-256 fingerprint

80:C7:3A:2D:90:89:FD:9E:2A:20:00:F9:24:4B:5C:2A:77:84:0C:DF:9F:E8:64:B4:88:61:47:8B:75:9B:6F:D6
Certificate extensions & PEM
keyUsage
Digital Signature
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
3F:69:31:5E:D0:ED:12:F5:39:2C:6B:9A:B2:2E:8D:9E:7E:3E:D3:61
authorityKeyIdentifier
90:77:92:35:67:C4:FF:A8:CC:A9:E6:7B:D9:80:79:7B:CC:93:F9:38
authorityInfoAccess
CA Issuers - URI:http://i.pki.goog/we1.crt
subjectAltName
DNS:zetservers.com, DNS:*.zetservers.com
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://c.pki.goog/we1/klBYOI2idbc.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB: B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14 Timestamp : Sep 8 18:53:59.146 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:EB:C7:D0:C1:C7:35:00:D6:A2:5E:95: F3:B8:4D:82:69:ED:8C:42:9E:6F:71:D7:6A:80:B8:02: 5A:65:3C:F6:32:02:21:00:83:96:2A:C3:77:07:6D:BC: 5A:9A:7A:83:D5:E9:4A:96:C0:55:C7:15:9C:F7:8D:C7: 00:A4:C4:A6:C5:C0:69:4F Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB: C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD Timestamp : Sep 8 18:53:59.104 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:AE:F8:B1:7A:DF:06:AD:1B:9E:2E:87: F9:43:D4:EC:13:57:67:C8:E3:A1:37:6B:A3:74:1E:99: 1B:CC:11:AC:58:02:21:00:E0:45:8A:57:17:79:C6:3C: CB:3F:93:30:9A:58:AD:D3:F4:06:EA:78:5C:EA:D9:5F: 81:3B:10:66:BA:27:7B:3B
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-25T02:50:51+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Google Trust Services CN=WE1
Issuer
C=US O=Google Trust Services LLC CN=GTS Root R4
Valid from
2023-12-13T09:00:00+00:00
Expires
2029-02-20T14:00:00+00:00
Days remaining
879
Serial (hex)
7FF31977972C224A76155D13B6D685E3
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

1D:FC:16:05:FB:AD:35:8D:8B:C8:44:F7:6D:15:20:3F:AC:9C:A5:C1:A7:9F:D4:85:7F:FA:F2:86:4F:BE:BF:96
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
90:77:92:35:67:C4:FF:A8:CC:A9:E6:7B:D9:80:79:7B:CC:93:F9:38
authorityKeyIdentifier
80:4C:D6:EB:74:FF:49:36:A3:D5:D8:FC:B5:3E:C5:6A:F0:94:1D:8C
authorityInfoAccess
CA Issuers - URI:http://i.pki.goog/r4.crt
crlDistributionPoints
Full Name: URI:http://c.pki.goog/r/r4.crl
certificatePolicies
Policy: 2.23.140.1.2.1
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=Google Trust Services LLC CN=GTS Root R4
Issuer
C=BE O=GlobalSign nv-sa OU=Root CA CN=GlobalSign Root CA
Valid from
2023-11-15T03:43:21+00:00
Expires
2028-01-28T00:00:42+00:00
Days remaining
489
Serial (hex)
7FE530BF331343BEDD821610493D8A1B
Signature
RSA-SHA256
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

76:B2:7B:80:A5:80:27:DC:3C:F1:DA:68:DA:C1:70:10:ED:93:99:7D:0B:60:3E:2F:AD:BE:85:01:24:93:B5:A7
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
80:4C:D6:EB:74:FF:49:36:A3:D5:D8:FC:B5:3E:C5:6A:F0:94:1D:8C
authorityKeyIdentifier
60:7B:66:1A:45:0D:97:CA:89:50:2F:7D:04:CD:34:A8:FF:FC:FD:4B
authorityInfoAccess
CA Issuers - URI:http://i.pki.goog/gsr1.crt
crlDistributionPoints
Full Name: URI:http://c.pki.goog/r/gsr1.crl
certificatePolicies
Policy: 2.23.140.1.2.1
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

View certificate JSON

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