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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

atni.com · 52.3.52.125:443

Verified

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

Subject
CN=atni.com
Issuer
C=US O=Amazon CN=Amazon RSA 2048 M04
Valid from
2026-10-18T00:00:00+00:00
Expires
2027-05-03T23:59:59+00:00
Days remaining
184
Serial (hex)
0E235CDF14F66A333B05B7356465547E
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:atni.com, DNS:www.atni.com

SHA-256 fingerprint

EC:41:C8:BA:18:45:1A:C1:C8:12:28:02:B9:45:29:C4:8F:C7:E7:74:44:8F:99:13:90:52:A7:45:2A:C0:7C:37
Certificate extensions & PEM
authorityKeyIdentifier
1F:52:92:61:56:82:54:7F:81:66:D8:1D:3D:0A:AA:32:5C:87:DD:08
subjectKeyIdentifier
67:55:88:FB:F8:C4:1C:05:7C:C0:DB:80:77:A1:7A:9B:15:F4:C8:96
subjectAltName
DNS:atni.com, DNS:www.atni.com
certificatePolicies
Policy: 2.23.140.1.2.1
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.r2m04.amazontrust.com/r2m04.crl
authorityInfoAccess
OCSP - URI:http://ocsp.r2m04.amazontrust.com CA Issuers - URI:http://crt.r2m04.amazontrust.com/r2m04.cer
basicConstraints
CA:FALSE
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F: AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26 Timestamp : Oct 18 11:57:40.635 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:70:9B:0A:35:E7:E5:36:3C:C4:3A:F4:C0: 63:39:9A:C3:BE:87:12:63:FC:0D:CC:38:E1:8C:C5:22: 2F:AB:2A:EC:02:20:66:F2:51:21:20:9B:C1:B8:3E:C7: CC:B5:87:12:F2:63:28:0D:C7:7B:82:D0:59:67:0E:A1: A0:77:9D:20:2D:C2 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Oct 18 11:57:40.675 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:DB:69:3C:CE:35:AB:3C:F6:36:0B:54: C7:34:36:94:1A:8C:9C:BB:F2:5D:EB:4A:07:8D:46:83: 93:16:DB:3E:2F:02:20:10:06:CF:D0:EC:34:92:AE:6A: 63:53:FB:8A:BE:31:52:73:DC:12:16:13:7A:AA:13:2E: A2:57:73:FD:C1:19:37 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 8E:CA:47:0B:AC:DE:6A:F3:A2:06:B0:A4:7A:84:B7:46: FE:1F:C6:BF:95:3E:25:E6:9B:4E:E4:02:48:F3:C6:E8 Timestamp : Oct 18 11:57:40.723 2026 GMT Extensions: 00:00:05:00:27:3D:35:DB Signature : ecdsa-with-SHA256 30:45:02:20:67:A9:12:6A:4B:61:38:B1:FE:07:FD:C5: 0C:B2:2A:A3:6E:97:7E:9D:08:F6:5A:78:ED:D3:4A:CD: C3:CC:C4:80:02:21:00:FF:D7:64:13:A3:5F:AD:B4:A3: AF:5A:41:59:C0:B8:9A:87:AC:F5:B6:2D:1A:65:A0:CA: 3C:DD:DD:E5:8C:53:5A
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-31T19:54:32+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Amazon CN=Amazon RSA 2048 M04
Issuer
C=US O=Amazon CN=Amazon Root CA 1
Valid from
2022-08-23T22:26:35+00:00
Expires
2030-08-23T22:26:35+00:00
Days remaining
1392
Serial (hex)
0773124F2A952E3ED18A58BDB85D1BC0CE5F27
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

13:8B:DF:6E:23:AC:97:1E:B4:E6:26:B2:79:DD:6A:26:F0:57:51:0F:1D:E3:94:29:3A:5E:EA:28:60:DE:01:9B
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
subjectKeyIdentifier
1F:52:92:61:56:82:54:7F:81:66:D8:1D:3D:0A:AA:32:5C:87:DD:08
authorityKeyIdentifier
84:18:CC:85:34:EC:BC:0C:94:94:2E:08:59:9C:C7:B2:10:4E:0A:08
authorityInfoAccess
OCSP - URI:http://ocsp.rootca1.amazontrust.com CA Issuers - URI:http://crt.rootca1.amazontrust.com/rootca1.cer
crlDistributionPoints
Full Name: URI:http://crl.rootca1.amazontrust.com/rootca1.crl
certificatePolicies
Policy: 2.23.140.1.2.1
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=Amazon CN=Amazon Root CA 1
Issuer
C=US ST=Arizona L=Scottsdale O=Starfield Technologies, Inc. CN=Starfield Services Root Certificate Authority - G2
Valid from
2015-05-25T12:00:00+00:00
Expires
2037-12-31T01:00:00+00:00
Days remaining
4078
Serial (hex)
067F944A2A27CDF3FAC2AE2B01F908EEB9C4C6
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

87:DC:D4:DC:74:64:0A:32:2C:D2:05:55:25:06:D1:BE:64:F1:25:96:25:80:96:54:49:86:B4:85:0B:C7:27:06
Certificate extensions & PEM
basicConstraints
CA:TRUE
keyUsage
Digital Signature, Certificate Sign, CRL Sign
subjectKeyIdentifier
84:18:CC:85:34:EC:BC:0C:94:94:2E:08:59:9C:C7:B2:10:4E:0A:08
authorityKeyIdentifier
9C:5F:00:DF:AA:01:D7:30:2B:38:88:A2:B8:6D:4A:9C:F2:11:91:83
authorityInfoAccess
OCSP - URI:http://ocsp.rootg2.amazontrust.com CA Issuers - URI:http://crt.rootg2.amazontrust.com/rootg2.cer
crlDistributionPoints
Full Name: URI:http://crl.rootg2.amazontrust.com/rootg2.crl
certificatePolicies
Policy: X509v3 Any Policy
-----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.

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