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

nmail.kmv.ru · 217.13.220.162:443

Verified

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

Subject
CN=nmail.kmv.ru
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-11-04T07:59:19+00:00
Expires
2027-02-02T07:59:18+00:00
Days remaining
82
Serial (hex)
068A4689E477AD07EE47118C254A8B25BE1C
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:autoconfig.spostavka.ru, DNS:autoconfig.tkkk.ru, DNS:autodiscover.tkkk.ru, DNS:imap.kmv.ru, DNS:imap4.kmv.ru, DNS:mail.kmv.ru, DNS:mail.tkkk.ru, DNS:nmail.kmv.ru, DNS:pop.kmv.ru, DNS:pop3.kmv.ru, DNS:smtp.kmv.ru, DNS:webmail.kmv.ru

SHA-256 fingerprint

20:B8:1D:53:C0:E4:11:FD:27:EC:C9:FA:6B:FF:8C:B7:1E:06:F7:26:09:0A:43:03:73:D9:F9:F5:0B:31:AC:FC
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
A8:D4:1B:7A:54:77:F9:CA:23:64:02:27:A9:99:5E:91:F8:25:FC:A4
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.spostavka.ru, DNS:autoconfig.tkkk.ru, DNS:autodiscover.tkkk.ru, DNS:imap.kmv.ru, DNS:imap4.kmv.ru, DNS:mail.kmv.ru, DNS:mail.tkkk.ru, DNS:nmail.kmv.ru, DNS:pop.kmv.ru, DNS:pop3.kmv.ru, DNS:smtp.kmv.ru, DNS:webmail.kmv.ru
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/29.crl
ct_precert_scts
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 : Nov 4 08:57:49.444 2026 GMT Extensions: 00:00:05:00:1C:12:62:68 Signature : ecdsa-with-SHA256 30:44:02:20:51:BD:C8:CB:28:9A:EA:9A:55:3F:AD:2C: 1A:10:A1:36:3D:D4:17:BD:FE:5F:5E:AA:F2:09:2E:54: 22:CD:D6:3B:02:20:5F:A9:3A:4F:5E:A3:BD:9D:5A:78: 05:8C:9D:D2:5C:3B:66:2A:F3:B1:60:6B:E6:E5:56:03: 78:32:7C:07:A6:A2 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 : Nov 4 08:57:49.417 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:2C:0B:EA:BF:BD:D5:DC:E8:8D:6D:24:26: DD:B4:59:45:0D:54:13:F2:83:D6:CD:15:6D:55:1B:50: 4C:4D:0A:FA:02:21:00:8E:D4:5A:D5:BD:D1:EC:42:81: CC:93:24:55:B5:F0:A7:B6:73:DF:60:96:07:8F:5D:70: 59:BC:4C:39:14:5C:FF
-----BEGIN CERTIFICATE-----
MIIGozCCBYugAwIBAgISBopGieR3rQfuRxGMJUqLJb4cMA0GCSqGSIb3DQEBCwUA
MDMxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQD
EwNZUjEwHhcNMjYxMTA0MDc1OTE5WhcNMjcwMjAyMDc1OTE4WjAXMRUwEwYDVQQD
EwxubWFpbC5rbXYucnUwggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQCw
9/jj9+f0gUS+nBo9S9jXRbPSogNf1575YIuJV+JibyGQmD8NzeksWqorQGTPtqqc
qTPzDGpaVdLGFKd0blqVjTqOgIXet4jLFgPZwfGoADvjZba12BBxyU4SHqXzoJsS
d+YPTcCLMzhNCmQXf+lKiiBQ7QOBw5OsvriEPm877t3QncaAdo+3MiHsuJ7qV3Ze
L7oAUgreBFQhKAX+PKgER6DuQW/A4g1WWhPEnBLlU1OSd5LE0uc3lVCSVJvNEx63
OJW0Ri33rMTo8/8cej7gJRb70Aw3EZirV9awD2Z3uTa4MxthQ9Lx7vs3WbuK2Mwe
mHh5ghNVjHJkNWjoo6KXlLchEIx6djP7LXq/R62fDEzzA4lO7BlgE3lINzWfQtyj
21hmuBJXcX+ckIShsrNC0YDcBgyu3buCLYeTBk8CDAyswla80TKXpcSTui229my0
TERKZsJfXnEejhOrhQ5nm9ylNY95hkFcqt3fBMQBI+dwNBoHXicuu4qRebZY6dgj
gGWAEH6HpS2hJdK5Pn/YLhPkmJ+dFWQJYFjjD5wKsrHgdDtImLNmuXIvMbzIYc0Z
k0rBAs6ZgbWdoEIfzG6lG+7z4KRMfDkP85UE3Mu/jsViboCcW4d/on73qjEJqPGP
htbim9RQe3HocXO/RD2GG4VUqDhIAssDAe7E2w3jgQIDAQABo4ICyzCCAscwDgYD
VR0PAQH/BAQDAgWgMBMGA1UdJQQMMAoGCCsGAQUFBwMBMAwGA1UdEwEB/wQCMAAw
HQYDVR0OBBYEFKjUG3pUd/nKI2QCJ6mZXpH4JfykMB8GA1UdIwQYMBaAFB8vNb5G
FILNQLGueSxVePr31Gj7MDMGCCsGAQUFBwEBBCcwJTAjBggrBgEFBQcwAoYXaHR0
cDovL3lyMS5pLmxlbmNyLm9yZy8wgcgGA1UdEQSBwDCBvYIXYXV0b2NvbmZpZy5z
cG9zdGF2a2EucnWCEmF1dG9jb25maWcudGtray5ydYIUYXV0b2Rpc2NvdmVyLnRr
a2sucnWCC2ltYXAua212LnJ1ggxpbWFwNC5rbXYucnWCC21haWwua212LnJ1ggxt
YWlsLnRra2sucnWCDG5tYWlsLmttdi5ydYIKcG9wLmttdi5ydYILcG9wMy5rbXYu
cnWCC3NtdHAua212LnJ1gg53ZWJtYWlsLmttdi5ydTATBgNVHSAEDDAKMAgGBmeB
DAECATAuBgNVHR8EJzAlMCOgIaAfhh1odHRwOi8veXIxLmMubGVuY3Iub3JnLzI5
LmNybDCCAQsGCisGAQQB1nkCBAIEgfwEgfkA9wB9AFlubDOGlLJZcqJWyKDo3ZBK
dugIPdqHOwEIOCgUPO5ZAAABoaXHYIQACAAABQAcEmJoBAMARjBEAiBRvcjLKJrq
mlU/rSwaEKE2PdQXvf5fXqryCS5UIs3WOwIgX6k6T16jvZ1aeAWMndJcO2Yq87Fg
a+blVgN4MnwHpqIAdgBEwr0M6RQOZKXJSgGTClqhuzWXDgDuERaJaCocRNe1ZgAA
AaGlx2BpAAAEAwBHMEUCICwL6r+91dzojW0kJt20WUUNVBPyg9bNFW1VG1BMTQr6
AiEAjtRa1b3R7EKBzJMkVbXwp7Zz32CWB49dcFm8TDkUXP8wDQYJKoZIhvcNAQEL
BQADggEBAHz0zhtnwG4ddLFtQjQ2OK5+9oX+7V7+kda62p0jpZMYmbGnSE4zJ0rT
OA+Dp9XKJNpCxbLMi+qDXOy1rvTXMBhwYBDxGYcT2Egut5QGjKYqSMGkAKzk+hpL
H8kZtYCn01nnUzotPZ6m1EF9ByLtm8zjf82GKIBz7SPlxI4fTaTt87xNynGuZFrp
7d7pz/PzeJhHyNiXSvyiW02+GkZc5cbnEZf7Q2l0nQv3P0wJDYkWZ/0TfPwUC13H
dJiYI2xQIR3/h9Xd45pND3UhlOcYotQpIrfb+88TO9WbcezUh1yYASkqRGawk1D9
qKnScHGZTHdyTxo2il6OrR1bSrTEnjk=
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-11T22:27:49+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
661
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
2122
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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