DNS
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

mail.it-lance.com.ua · 2.57.36.3:443

Verified

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

Subject
CN=mail.it-lance.com.ua
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-09-26T16:53:57+00:00
Expires
2026-12-25T16:53:56+00:00
Days remaining
74
Serial (hex)
060DB882291341465282EBD82BFB6888457E
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:autoconfig.it-lance.com.ua, DNS:autodiscover.it-lance.com.ua, DNS:mail.it-lance.com.ua

SHA-256 fingerprint

73:3B:4D:01:5D:7E:5D:7C:54:EC:22:DC:3D:75:B9:4B:D0:82:75:5C:CA:01:57:6B:85:4C:02:C1:6D:07:09:DE
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
15:FE:97:DA:03:D0:C7:D6:7C:E2:90:63:97:17:64:B0:01:5D:5E:40
authorityKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
authorityInfoAccess
CA Issuers - URI:http://yr1.i.lencr.org/
subjectAltName
DNS:autoconfig.it-lance.com.ua, DNS:autodiscover.it-lance.com.ua, DNS:mail.it-lance.com.ua
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/127.crl
ct_precert_scts
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 : Sep 26 17:52:28.066 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:68:F9:FA:AB:5F:57:BC:B2:8E:38:F8:1B: BE:B2:7B:39:F2:F4:6F:D4:48:48:C3:C6:A5:07:2B:B3: E5:08:81:B8:02:20:4F:3C:6A:6E:C5:A7:5A:06:79:7C: E4:5C:16:C2:2B:D9:48:9E:40:4D:BF:81:4D:CD:21:24: D8:EF:58:A1:41:45 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 26:E3:64:6E:58:69:21:23:BC:34:3F:47:24:35:9B:37: 92:CD:24:5A:88:D8:15:D3:93:33:FD:99:18:AB:47:23 Timestamp : Sep 26 17:52:25.562 2026 GMT Extensions: 00:00:05:00:46:C7:FE:CF Signature : ecdsa-with-SHA256 30:46:02:21:00:DF:59:3A:08:84:F5:5B:FB:CC:FB:41: 95:65:AC:A5:06:A4:A6:E6:87:2E:4B:CA:5C:75:A4:EF: C5:76:D6:C5:AA:02:21:00:BB:E8:68:E1:38:D3:02:58: 7D:B3:ED:EF:02:7F:EE:42:FB:2D:8E:B5:85:8A:CC:81: 12:BE:52:2D:D4:FF:3C:BE
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-12T09:29:52+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR1
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
691
Serial (hex)
A20253F15F2691C05DC1CE13B9BCCA4E
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

13:94:96:34:D9:9C:D6:FD:6A:A8:0B:C0:34:FE:FA:CC:EB:19:69:FE:EF:98:65:86:71:3E:CD:BB:05:75:8D:3F
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
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
2152
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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