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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

kpn.net · 52.209.121.26:443

Verified

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

Subject
CN=www.kpn.net
Issuer
C=US O=Amazon CN=Amazon RSA 2048 M01
Valid from
2026-08-31T00:00:00+00:00
Expires
2027-03-16T23:59:59+00:00
Days remaining
174
Serial (hex)
0C3D509353F3D43437E5EF4FF183B587
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:www.kpn.net, DNS:kpn.net

SHA-256 fingerprint

F7:FB:CE:27:AF:D8:D0:AE:02:3F:05:43:4F:EF:21:0C:77:28:B2:68:06:3B:D9:45:B5:76:D8:E7:FF:60:57:92
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
54:76:F9:3A:98:5D:B1:76:38:C8:3D:F1:E1:F3:3F:3D:96:81:3C:18
subjectAltName
DNS:www.kpn.net, DNS:kpn.net
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 : 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 : Aug 31 00:34:36.152 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:7C:C5:DD:3B:1E:23:43:8A:4E:86:74:7B: 95:2A:CA:C6:19:C9:49:F5:BD:B5:D9:D6:3A:AA:20:3C: 0F:6C:AA:A3:02:21:00:DB:0C:E4:78:B9:C3:B6:E3:B0: E9:72:63:7F:FC:04:F9:A1:CF:5A:FC:5D:28:18:DD:04: B0:4A:9B:50:55:37:AC 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 : Aug 31 00:34:36.170 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:A4:79:8F:37:19:68:9C:8E:64:03:05: 7A:C5:64:29:C6:AD:36:D3:B1:F6:D5:91:A0:7C:1D:C2: 4E:D0:A1:02:16:02:21:00:E8:AC:DF:64:CD:27:3A:D9: 9B:5E:6E:63:8B:DE:AE:C8:05:1D:33:47:E4:C1:E8:11: F5:2E:4C:F6:DD:F7:A1:DE Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 44:C2:BD:0C:E9:14:0E:64:A5:C9:4A:01:93:0A:5A:A1: BB:35:97:0E:00:EE:11:16:89:68:2A:1C:44:D7:B5:66 Timestamp : Aug 31 00:34:36.195 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:7F:07:62:64:6A:99:61:A8:00:15:CC:D4: 73:13:4F:03:BD:A6:F6:2B:45:77:B9:D0:54:4F:EB:9B: 56:8E:B6:F4:02:20:44:00:5A:0C:62:F1:69:26:E7:A1: 10:8B:65:20:AC:00:08:21:8A:B1:DE:82:06:DA:AC:45: F1:17:C4:98:44:9D
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-23T10:05:47+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
1430
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
4116
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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