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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

ber.de · 85.13.131.199:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate CN=`*.kasserver.com' did not match expected CN=`ber.de'

Certificate verification failed

Subject
CN=*.kasserver.com
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA DV E36
Valid from
2026-08-07T00:00:00+00:00
Expires
2027-02-21T23:59:59+00:00
Days remaining
151
Serial (hex)
63AE132D6E3DB91DEA506E2B28B1AA50
Signature
ecdsa-with-SHA256
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:*.kasserver.com, DNS:kasserver.com

SHA-256 fingerprint

A1:E1:B9:6B:70:D5:ED:14:AF:84:56:90:37:61:FF:0D:BF:67:74:C9:C6:05:91:5E:18:FB:AD:AB:2E:4B:B2:E7
Certificate extensions & PEM
authorityKeyIdentifier
17:99:A8:04:C1:6F:E4:2D:70:A8:0A:10:3D:03:D3:E9:1A:B8:26:63
subjectKeyIdentifier
0D:61:9E:CF:44:32:B9:20:94:A0:D5:4D:62:61:54:AF:87:8B:E8:03
keyUsage
Digital Signature
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: 1.3.6.1.4.1.6449.1.2.2.7 CPS: https://sectigo.com/CPS Policy: 2.23.140.1.2.1
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationCADVE36.crt OCSP - URI:http://ocsp.sectigo.com
subjectAltName
DNS:*.kasserver.com, DNS:kasserver.com
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Aug 7 22:50:35.957 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:5C:29:25:7B:4F:6C:1E:4C:D5:AC:52:BC: E8:2D:59:EF:6F:FA:AB:27:47:61:EA:60:51:CB:43:DC: EB:8B:05:C5:02:21:00:93:AE:E2:A7:4B:9E:58:76:26: 0B:25:BD:13:2C:08:56:7A:B2:4A:21:5A:31:0C:F1:4E: A0:BE:6F:42:47:A1:70 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 : Aug 7 22:50:36.784 2026 GMT Extensions: 00:00:05:00:08:06:EA:FD Signature : ecdsa-with-SHA256 30:45:02:20:72:59:71:A9:37:3F:3F:2F:F1:5B:0E:79: 8D:27:41:2D:17:FE:2C:8A:CC:90:D1:26:8E:2F:6F:5F: A1:37:BF:79:02:21:00:A6:FA:95:60:EF:20:15:20:09: 8E:1C:C6:88:65:78:63:2A:57:44:B9:FE:5E:59:2C:E5: F7:C3:2B:4F:7D:3A:39 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 59:6E:6C:33:86:94:B2:59:72:A2:56:C8:A0:E8:DD:90: 4A:76:E8:08:3D:DA:87:3B:01:08:38:28:14:3C:EE:59 Timestamp : Aug 7 22:50:36.172 2026 GMT Extensions: 00:00:05:00:00:5B:9F:0D Signature : ecdsa-with-SHA256 30:44:02:20:35:44:DA:1F:1E:30:F7:65:B0:48:F8:67: 1E:5D:3E:32:FA:09:47:43:AD:0F:37:15:7E:FA:49:36: 82:E6:4B:92:02:20:19:F1:3B:42:B6:69:6E:E6:2A:52: 68:40:7D:4E:32:AC:D4:FA:6D:44:5E:86:92:A5:09:1B: 23:F5:F7:8D:B2:8C
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-23T05:41:17+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA DV E36
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root E46
Valid from
2021-03-22T00:00:00+00:00
Expires
2036-03-21T23:59:59+00:00
Days remaining
3467
Serial (hex)
36E059ED888DD57AEDD570B6727F9BDA
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

87:3F:0B:A8:0E:3A:C2:22:65:6D:FD:04:15:8C:C1:5C:29:27:D4:2D:5D:05:F0:1D:EE:4A:47:EB:43:A9:16:DF
Certificate extensions & PEM
authorityKeyIdentifier
D1:22:DA:4C:59:F1:4B:5F:26:38:AA:9D:D6:EE:EB:0D:C3:FB:A9:61
subjectKeyIdentifier
17:99:A8:04:C1:6F:E4:2D:70:A8:0A:10:3D:03:D3:E9:1A:B8:26:63
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: X509v3 Any Policy Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.sectigo.com/SectigoPublicServerAuthenticationRootE46.crl
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationRootE46.p7c OCSP - URI:http://ocsp.sectigo.com
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root E46
Issuer
C=US ST=New Jersey L=Jersey City O=The USERTRUST Network CN=USERTrust ECC Certification Authority
Valid from
2021-03-22T00:00:00+00:00
Expires
2038-01-18T23:59:59+00:00
Days remaining
4135
Serial (hex)
1A9EAFEC6DE8E19B5C193141B68D90DD
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

EA:6B:89:ED:69:07:A2:09:FF:91:88:67:6F:B1:64:E7:AC:ED:89:4B:89:96:DF:BE:5C:E5:BB:CC:22:DE:4D:DD
Certificate extensions & PEM
authorityKeyIdentifier
3A:E1:09:86:D4:CF:19:C2:96:76:74:49:76:DC:E0:35:C6:63:63:9A
subjectKeyIdentifier
D1:22:DA:4C:59:F1:4B:5F:26:38:AA:9D:D6:EE:EB:0D:C3:FB:A9:61
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: X509v3 Any Policy
crlDistributionPoints
Full Name: URI:http://crl.usertrust.com/USERTrustECCCertificationAuthority.crl
authorityInfoAccess
OCSP - URI:http://ocsp.usertrust.com
-----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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