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

mx.avanttel.ru · 91.240.208.22:443

Verified

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

Subject
CN=mx.avanttel.ru
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R46 AlphaSSL CA 2025
Valid from
2026-11-03T05:06:26+00:00
Expires
2027-05-21T05:06:26+00:00
Days remaining
195
Serial (hex)
3A1D572FA89B1D4F0ED16F56
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:mx.avanttel.ru

SHA-256 fingerprint

EB:5D:BC:60:28:D8:4B:41:90:E5:ED:4B:13:9D:B0:D9:AB:CB:89:0C:83:A0:98:26:75:74:92:00:B8:26:79:0D
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
authorityInfoAccess
CA Issuers - URI:http://secure.globalsign.com/cacert/gsgccr46alphasslca2025.crt OCSP - URI:http://ocsp.globalsign.com/gsgccr46alphasslca2025
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/gsgccr46alphasslca2025.crl
subjectAltName
DNS:mx.avanttel.ru
authorityKeyIdentifier
A3:4C:AC:B1:BF:B4:88:ED:8B:74:D8:5F:34:38:C9:E9:0A:25:9E:7B
extendedKeyUsage
TLS Web Server Authentication
subjectKeyIdentifier
36:6C:55:14:16:8A:57:46:52:31:28:24:1F:F9:D4:80:90:3A:DB:13
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 : Nov 3 05:06:32.669 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:F8:C0:B0:D0:B3:AC:C8:8F:1A:B8:EE: 6B:37:9A:F2:A2:5F:41:C8:7F:09:B2:EB:97:92:7D:E5: A7:56:A0:D9:E3:02:20:1A:96:34:5B:A9:2F:D6:B5:C6: 9B:19:9A:96:D2:EF:C6:3D:3F:F3:2A:D8:E8:EB:91:8D: AE:26:1C:81:F8:19:D4 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F: AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26 Timestamp : Nov 3 05:06:32.535 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:6B:18:1F:E6:72:D5:75:8A:23:F3:AF:35: 28:6A:10:26:AE:70:5A:AA:14:9B:1C:3F:22:4B:F1:E7: 39:90:FF:63:02:21:00:E2:31:53:F2:57:13:9C:1B:B6: 47:B9:A3:A3:BB:DE:AE:68:A1:CC:F5:A8:44:71:41:CD: B4:11:4A:2E:0A:8F:0D Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 60:4C:9A:AF:7A:7F:77:5F:01:D4:06:FC:92:0D:C8:99: EB:0B:1C:7D:F8:C9:52:1B:FA:FA:17:77:3B:97:8B:C9 Timestamp : Nov 3 05:06:32.238 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:4B:0C:CC:BC:29:AE:CC:0B:D4:FA:43:5C: 52:51:56:69:7A:26:37:E8:52:C5:C6:7C:8A:28:14:52: DC:4A:CC:3E:02:21:00:93:58:3A:95:02:5F:CC:F6:B2: C7:E4:15:18:B0:EB:AD:CD:E9:00:1C:89:11:D4:25:C3: 24:B9:C9:86:FE:93:59
-----BEGIN CERTIFICATE-----
MIIGBTCCBO2gAwIBAgIMOh1XL6ibHU8O0W9WMA0GCSqGSIb3DQEBCwUAMFYxCzAJ
BgNVBAYTAkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMSwwKgYDVQQDEyNH
bG9iYWxTaWduIEdDQyBSNDYgQWxwaGFTU0wgQ0EgMjAyNTAeFw0yNjExMDMwNTA2
MjZaFw0yNzA1MjEwNTA2MjZaMBkxFzAVBgNVBAMTDm14LmF2YW50dGVsLnJ1MIIB
IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA6cAJoi5N8YjGZs5Cz7zC7tRs
JNIOpLLlBFeRm9rTbbpUaDzrlTlQuvA/zyB3o7H0XMLKZB81WP+72OmDe+tUEQUK
rE1dErzJ+O7i/7N7kM09eC8cfeu25oxNL+rRJ4QzkPmitEmZPR922lZo0Ss7rJra
ypJjJlS8Af1UDD166Ae8gb/DiuQq890iNyB6esxHOnDc3SOhCUPzPJij0KyHKWNc
IvBJlMUjKVHAir1BUzeL4BkB07kEzpxNs1t6wvzwk3fQ6QxXIY49/DII371aqH7R
wb9H7iAyngVeccJf943uJO/a1ExbtAGB6Bca/6pQ5q/sq+Yg+DyX1pcp401XuQID
AQABo4IDDjCCAwowDgYDVR0PAQH/BAQDAgWgMAwGA1UdEwEB/wQCMAAwgZsGCCsG
AQUFBwEBBIGOMIGLMEoGCCsGAQUFBzAChj5odHRwOi8vc2VjdXJlLmdsb2JhbHNp
Z24uY29tL2NhY2VydC9nc2djY3I0NmFscGhhc3NsY2EyMDI1LmNydDA9BggrBgEF
BQcwAYYxaHR0cDovL29jc3AuZ2xvYmFsc2lnbi5jb20vZ3NnY2NyNDZhbHBoYXNz
bGNhMjAyNTATBgNVHSAEDDAKMAgGBmeBDAECATBFBgNVHR8EPjA8MDqgOKA2hjRo
dHRwOi8vY3JsLmdsb2JhbHNpZ24uY29tL2dzZ2NjcjQ2YWxwaGFzc2xjYTIwMjUu
Y3JsMBkGA1UdEQQSMBCCDm14LmF2YW50dGVsLnJ1MB8GA1UdIwQYMBaAFKNMrLG/
tIjti3TYXzQ4yekKJZ57MBMGA1UdJQQMMAoGCCsGAQUFBwMBMB0GA1UdDgQWBBQ2
bFUUFopXRlIxKCQf+dSAkDrbEzCCAX4GCisGAQQB1nkCBAIEggFuBIIBagFoAHYA
HJ9oLOn68EVpUPgbloqH3dsyENhM5siy44JSSsTPWZ8AAAGhn81GXQAABAMARzBF
AiEA+MCw0LOsyI8auO5rN5ryol9ByH8JsuuXkn3lp1ag2eMCIBqWNFupL9a1xpsZ
mpbS78Y9P/Mq2OjrkY2uJhyB+BnUAHYATGPcmOWcHauI9h6KPd6uj6tEozd7X5uU
w/uhnPzBviYAAAGhn81F1wAABAMARzBFAiBrGB/mctV1iiPzrzUoahAmrnBaqhSb
HD8iS/HnOZD/YwIhAOIxU/JXE5wbtke5o6O73q5oocz1qERxQc20EUouCo8NAHYA
YEyar3p/d18B1Ab8kg3ImesLHH34yVIb+voXdzuXi8kAAAGhn81ErgAABAMARzBF
AiBLDMy8Ka7MC9T6Q1xSUVZpeiY36FLFxnyKKBRS3ErMPgIhAJNYOpUCX8z2ssfk
FRiw663N6QAciRHUJcMkucmG/pNZMA0GCSqGSIb3DQEBCwUAA4IBAQABfCdQGZSM
FmYrVxsZdfBRsiy5OLCmzS2/li4SncoSh790lU6faf+xj2stlxJkd4iow4X/x2wT
6JnLGeYYSqxmOuUCLg/wkM/mq23WHC7QH310SadZb38/KEh6fbbtwdGFLzkFFKFq
JrORNHIn83dKvvucM+BTRBlWoSaDHDeT6NhFfrddxXKSc5gzD6qOOnWLTKH+9rY4
F8wLKF4Q7X6Fp+072+IfI6ICuOXFBbRompcGQtyRnm0whFRXMtLiqQyhCmyTloOc
Nisk4LS4xVT0WZ/2TXKTBNhV0YhDI1ab7zv4J41YyyceTyqSIEn7pcBPQ0oo1fgs
C8wDvPu5D9wr
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-07T01:33:51+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=BE O=GlobalSign nv-sa CN=GlobalSign GCC R46 AlphaSSL CA 2025
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign Root R46
Valid from
2025-09-17T02:55:30+00:00
Expires
2029-06-23T00:00:00+00:00
Days remaining
958
Serial (hex)
8443586F6396264381337C801A2E6118
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

D2:AC:9D:CC:7A:25:50:29:A5:F5:18:0D:63:F1:A9:ED:60:E1:14:12:A8:5C:14:8D:4B:71:F6:AE:1A:36:69:5C
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
A3:4C:AC:B1:BF:B4:88:ED:8B:74:D8:5F:34:38:C9:E9:0A:25:9E:7B
authorityKeyIdentifier
03:5C:AB:73:81:87:A8:CC:B0:A6:D5:94:E2:36:96:49:FF:05:99:2C
authorityInfoAccess
OCSP - URI:http://ocsp.globalsign.com/rootr46 CA Issuers - URI:http://secure.globalsign.com/cacert/rootr46.crt
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/rootr46.crl
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 1.3.6.1.4.1.4146.10.1.3
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=BE O=GlobalSign nv-sa CN=GlobalSign Root R46
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign Root R46
Valid from
2019-03-20T00:00:00+00:00
Expires
2046-03-20T00:00:00+00:00
Days remaining
7072
Serial (hex)
11D2BBB9D723189E405F0A9D2DD0DF2567D1
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

4F:A3:12:6D:8D:3A:11:D1:C4:85:5A:4F:80:7C:BA:D6:CF:91:9D:3A:5A:88:B0:3B:EA:2C:63:72:D9:3C:40:C9
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
subjectKeyIdentifier
03:5C:AB:73:81:87:A8:CC:B0:A6:D5:94:E2:36:96:49:FF:05:99:2C
-----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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