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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

ans.cz · 193.0.231.55:443

Verified

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

Subject
CN=www.rlp.cz
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=GeoTrust TLS RSA CA G1
Valid from
2025-10-07T00:00:00+00:00
Expires
2026-11-07T23:59:59+00:00
Days remaining
34
Serial (hex)
0E68DE9EECA877C84B450D6AFA930977
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:www.rlp.cz, DNS:ans.cz, DNS:payment.ans.cz, DNS:rlp.cz, DNS:www.ans.cz

SHA-256 fingerprint

C9:34:F7:2B:43:80:B0:AF:88:C7:61:F2:25:51:A4:D9:45:51:C0:37:51:66:DA:F0:43:AC:3E:EC:27:9F:B3:7F
Certificate extensions & PEM
authorityKeyIdentifier
94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
subjectKeyIdentifier
C6:61:3C:7C:2C:A9:59:5E:E8:F1:17:AE:D4:78:75:48:13:4F:13:A1
subjectAltName
DNS:www.rlp.cz, DNS:ans.cz, DNS:payment.ans.cz, DNS:rlp.cz, DNS:www.ans.cz
certificatePolicies
Policy: 2.23.140.1.2.1 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://cdp.geotrust.com/GeoTrustTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.geotrust.com CA Issuers - URI:http://cacerts.geotrust.com/GeoTrustTLSRSACAG1.crt
basicConstraints
CA:FALSE
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 : Oct 7 14:23:00.215 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:86:74:74:BB:1B:32:D5:45:2B:AB:75: B1:A8:FC:05:F2:16:21:5D:E8:80:20:2F:CF:4A:B7:09: A7:B6:FE:B1:B0:02:20:4F:C5:FE:DF:49:B4:38:5F:CA: 0B:1F:36:1E:49:D0:48:4D:2F:15:6D:C7:16:92:6C:E2: 6B:7A:43:C6:D9:E5:5D 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 : Oct 7 14:23:00.219 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:0C:09:0D:5A:89:A3:71:F4:1F:CC:64:DC: D0:04:5D:0D:7E:C2:00:17:23:F2:0E:32:8C:7E:5F:6A: 25:E3:D1:00:02:20:71:01:86:D1:91:D4:52:B1:A3:2D: 94:B5:22:45:11:63:F2:29:09:83:EE:03:4B:2D:45:DE: 9C:DA:FE:38:09:A3 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 : Oct 7 14:23:00.236 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:32:A8:F6:24:7E:83:0A:09:C7:3B:6D:FB: 4F:83:86:77:FF:D0:64:32:7B:9F:FD:FB:C0:07:92:CF: CF:E9:4A:02:02:21:00:C7:1A:1F:E0:32:9D:78:28:37: 95:9E:1C:D6:C9:9A:40:16:D5:D2:71:EC:DF:AD:3E:5B: EA:25:95:51:21:47:03
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES256-SHA384 · Checked 2026-10-04T07:33:50+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=GeoTrust TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:23:37+00:00
Expires
2027-11-02T12:23:37+00:00
Days remaining
394
Serial (hex)
0D07782A133FC6F9A57296E131FFD179
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

C0:6E:30:7F:7C:FC:1D:32:FA:72:A4:C0:33:C8:7B:90:01:9A:F2:16:F0:77:5D:64:97:8A:2E:CA:6C:8A:23:0E
Certificate extensions & PEM
subjectKeyIdentifier
94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
authorityKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.digicert.com/CPS
-----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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