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.wninternet.com · 190.112.219.66:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate subjectAltName did not match expected name `mail.wninternet.com'

Certificate verification failed

Subject
CN=wninternet.com
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-09-22T23:49:19+00:00
Expires
2026-12-21T23:49:18+00:00
Days remaining
46
Serial (hex)
0678F1CDC0F9EEE4D509B363D9F70881051E
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:lg.wninternet.com, DNS:rdns.wninternet.com, DNS:speedtest.wninternet.com, DNS:webmail.wninternet.com, DNS:wninternet.com, DNS:www.wninternet.com

SHA-256 fingerprint

25:D6:89:AD:A8:74:2A:6A:14:0A:A9:B1:18:D3:A4:6E:F0:13:3B:35:4C:94:C6:AF:AD:4E:08:FB:EE:CC:BF:B7
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
CD:E4:21:3F:F6:AE:F6:B3:84:32:3C:06:90:9C:C1:13:36:30:53:C2
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:lg.wninternet.com, DNS:rdns.wninternet.com, DNS:speedtest.wninternet.com, DNS:webmail.wninternet.com, DNS:wninternet.com, DNS:www.wninternet.com
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/31.crl
ct_precert_scts
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 : Sep 23 00:47:49.319 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:08:95:19:92:E7:07:5A:6E:98:E5:2D:73: B9:55:FC:A0:03:C9:B4:86:51:54:04:8B:61:A2:80:F9: 53:B1:16:E7:02:21:00:A3:E2:2E:B5:6D:1D:5C:85:EA: 71:D4:EF:88:66:48:E7:50:24:88:B8:22:18:45:87:CE: 5A:E7:C6:4E:54:E2:3D Signed Certificate Timestamp: Version : v1 (0x0) Log ID : A2:81:00:18:73:4E:17:6E:1D:47:E0:95:40:F3:81:BA: 54:66:97:CD:63:A8:43:50:71:6E:B8:09:4E:DA:F1:0D Timestamp : Sep 23 00:47:49.653 2026 GMT Extensions: 00:00:05:00:12:D3:9E:B0 Signature : ecdsa-with-SHA256 30:45:02:20:3C:C8:63:6B:63:95:7A:26:08:FD:AA:08: B1:D2:DD:BE:62:AD:85:E8:6B:E2:7A:81:68:A3:13:A9: F5:B2:FD:39:02:21:00:86:51:51:8D:19:8E:79:05:2C: CB:16:A2:2B:BC:BB:15:08:0D:BF:D4:ED:66:EB:6D:9C: 8D:9A:11:46:0B:E4:90
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-05T23:47:23+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
667
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
2128
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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