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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

TLSv1.2

aps.org · 149.28.6.12:443

Verified

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

Subject
CN=aps.org
Issuer
C=US O=Amazon CN=Amazon RSA 2048 M01
Valid from
2025-11-20T00:00:00+00:00
Expires
2026-12-19T23:59:59+00:00
Days remaining
88
Serial (hex)
027885FB1E2202FE308BB04477BA6AC4
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:aps.org

SHA-256 fingerprint

B6:86:03:83:C8:B8:AD:48:BD:90:00:D5:A5:E8:23:54:C0:18:A5:E9:BE:FC:9D:3F:D8:A1:58:B0:CE:B9:D2:03
Certificate extensions & PEM
authorityKeyIdentifier
81:B8:0E:63:8A:89:12:18:E5:FA:3B:3B:50:95:9F:E6:E5:90:13:85
subjectKeyIdentifier
32:CC:4B:0C:D0:A1:AD:46:A4:66:8C:08:D8:37:FA:29:29:B0:EE:14
subjectAltName
DNS:aps.org
certificatePolicies
Policy: 2.23.140.1.2.1
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.r2m01.amazontrust.com/r2m01.crl
authorityInfoAccess
OCSP - URI:http://ocsp.r2m01.amazontrust.com CA Issuers - URI:http://crt.r2m01.amazontrust.com/r2m01.cer
basicConstraints
CA:FALSE
ct_precert_scts
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 : Nov 20 19:01:20.459 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:18:94:7B:B7:FF:EF:46:76:2E:49:6F:8E: FD:59:63:C7:F0:45:BB:BC:66:AD:88:3D:C3:30:54:65: 79:E8:D7:4B:02:20:08:DA:44:B4:12:4D:2F:98:42:AF: 46:E0:EF:44:C3:C1:7D:97:C8:42:2B:4E:EB:E4:D2:51: F5:EE:0C:7A:B2:F3 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9: 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77 Timestamp : Nov 20 19:01:20.414 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:FF:A6:92:28:8E:41:01:2F:67:2D:B2: B6:B9:C6:7F:34:7C:13:ED:71:82:BF:5E:60:77:28:38: B2:14:4E:2B:E8:02:20:41:C7:B7:E6:3D:2A:A9:3D:6D: 79:B8:7C:6E:A1:E0:2B:B4:CC:9B:5F:CC:3C:CC:D5:DC: 2A:80:A8:CE:42:BE:E9 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65: 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8 Timestamp : Nov 20 19:01:20.461 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:13:01:D0:79:CB:10:44:81:BE:9A:8D:4D: 66:34:68:CF:12:0E:E5:18:B9:6E:C7:9F:A4:33:B7:30: 22:D1:E0:28:02:21:00:CB:4B:01:D7:5A:29:12:C4:83: 45:86:34:11:2D:A3:01:78:1C:5F:70:39:30:42:D7:A9: 6B:B5:77:BE:C6:CF:8D
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-09-22T20:03:39+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Amazon CN=Amazon RSA 2048 M01
Issuer
C=US O=Amazon CN=Amazon Root CA 1
Valid from
2022-08-23T22:21:28+00:00
Expires
2030-08-23T22:21:28+00:00
Days remaining
1431
Serial (hex)
077312380B9D6688A33B1ED9BF9CCDA68E0E0F
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

53:38:EB:EC:8F:B2:AC:60:99:61:26:D3:E7:6A:A3:4F:D0:F3:31:8A:C7:8E:BB:7A:C8:F6:F1:36:1F:48:4B:33
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
81:B8:0E:63:8A:89:12:18:E5:FA:3B:3B:50:95:9F:E6:E5:90:13:85
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
4117
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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