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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

energotel.sk · 37.9.175.155:443

Verified

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

Subject
CN=energotel.sk
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-09-29T00:20:36+00:00
Expires
2026-12-28T00:20:35+00:00
Days remaining
48
Serial (hex)
06A7D399171259B805140F26DA60E440D0EB
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:energotel.sk, DNS:www.energotel.sk

SHA-256 fingerprint

7A:9D:61:2A:B0:2D:1E:56:F3:EC:CB:0F:CA:A4:F3:5E:8A:B5:63:3B:0F:9C:9F:D8:A2:28:7F:74:F9:9A:A1:E9
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
7E:02:B0:27:15:29:AD:0F:60:CF:2E:DF:18:3C:3C:BA:CD:42:6F:07
authorityKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityInfoAccess
CA Issuers - URI:http://yr2.i.lencr.org/
subjectAltName
DNS:energotel.sk, DNS:www.energotel.sk
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/108.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E: F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7 Timestamp : Sep 29 01:19:06.786 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:15:B6:72:A5:23:95:5C:70:BE:26:16:7D: 8A:21:14:4C:FF:EA:8A:3E:AA:84:70:52:D7:60:43:62: B9:A1:25:3C:02:20:06:38:58:DD:41:68:5D:08:27:43: 33:37:8D:B3:2F:21:AD:2F:CA:FB:33:70:2F:EE:CA:15: 45:A5:50:92:70:4E Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1A:8B:9D:6B:0F:FE:BF:81:B4:79:39:C6:D2:31:0A:86: D6:D1:02:D4:F0:46:E2:18:2C:9D:E3:5F:5E:26:25:EF Timestamp : Sep 29 01:19:07.364 2026 GMT Extensions: 00:00:05:00:46:37:9C:6A Signature : ecdsa-with-SHA256 30:44:02:20:17:AF:0D:35:7A:7B:76:4A:7F:0A:49:22: 2A:E0:35:F5:2C:CB:09:A7:C3:73:92:04:1E:A9:8D:0E: 20:9B:96:17:02:20:60:8B:64:13:F3:CC:76:B0:FE:76: D7:AE:08:C4:55:75:99:CB:98:AC:58:48:3B:E0:1F:A9: B2:DA:CD:6B:62:26
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-11-09T12:02:58+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR2
Issuer
C=US O=ISRG CN=Root YR
Valid from
2025-09-03T00:00:00+00:00
Expires
2028-09-02T23:59:59+00:00
Days remaining
663
Serial (hex)
4EBD24947E24D394802D84A52FD5B319
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

23:8B:85:A0:09:9C:65:B9:70:47:7D:57:24:F1:A1:D4:75:CE:50:58:CF:FE:4E:FA:87:33:89:9B:DB:86:3C:47
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityInfoAccess
CA Issuers - URI:http://yr.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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==
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=ISRG CN=Root YR
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2026-05-13T00:00:00+00:00
Expires
2032-09-02T23:59:59+00:00
Days remaining
2124
Serial (hex)
F24B6D17F9D9AD7CB1C9FEA78782699F
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

07:26:39:D0:B1:40:D5:BF:FA:E1:6A:D9:C3:F6:CC:60:86:04:06:21:F5:1E:E6:1A:6D:46:A8:91:5C:07:CF:76
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityKeyIdentifier
79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E
authorityInfoAccess
CA Issuers - URI:http://x1.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://x1.c.lencr.org/ 
-----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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