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

TLSv1.2

ns5.pmcnet.pl · 91.222.24.16:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate subjectAltName did not match expected name `ns5.pmcnet.pl'

Certificate verification failed

Subject
CN=nserver.pmcnet.eu
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-08-30T12:40:46+00:00
Expires
2026-11-28T12:40:45+00:00
Days remaining
51
Serial (hex)
0519FC9A7DBBD8AA54C33740858D21496363
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:autoconfig.nserver.pmcnet.eu, DNS:autodiscover.nserver.pmcnet.eu, DNS:cpanel.nserver.pmcnet.eu, DNS:cpcalendars.nserver.pmcnet.eu, DNS:cpcontacts.nserver.pmcnet.eu, DNS:ipv6.nserver.pmcnet.eu, DNS:mail.nserver.pmcnet.eu, DNS:nserver.pmcnet.eu, DNS:webdisk.nserver.pmcnet.eu, DNS:webmail.nserver.pmcnet.eu, DNS:whm.nserver.pmcnet.eu, DNS:www.nserver.pmcnet.eu

SHA-256 fingerprint

6C:52:4B:99:01:02:9B:08:A1:F6:B4:52:B4:3A:0E:31:BF:02:16:A9:4F:5C:01:4E:3E:20:93:61:F0:35:4F:B7
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
D9:4D:0A:77:8A:BA:43:00:45:FD:2F:40:FC:97:72:5D:E1:8F:E2:53
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.nserver.pmcnet.eu, DNS:autodiscover.nserver.pmcnet.eu, DNS:cpanel.nserver.pmcnet.eu, DNS:cpcalendars.nserver.pmcnet.eu, DNS:cpcontacts.nserver.pmcnet.eu, DNS:ipv6.nserver.pmcnet.eu, DNS:mail.nserver.pmcnet.eu, DNS:nserver.pmcnet.eu, DNS:webdisk.nserver.pmcnet.eu, DNS:webmail.nserver.pmcnet.eu, DNS:whm.nserver.pmcnet.eu, DNS:www.nserver.pmcnet.eu
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/100.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 : Aug 30 13:39:16.595 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:7D:72:65:07:E2:8B:E0:B8:5F:2F:D0:F6: 05:B5:B9:5D:77:DB:F0:5A:9A:0E:83:3E:A3:58:B5:07: EE:1C:73:1E:02:21:00:A4:9B:95:13:8B:73:CB:02:83: 45:20:70:77:0E:EE:68:1B:F1:3A:C9:35:CC:52:49:55: 96:0A:67:5A:C1:60:4C Signed Certificate Timestamp: Version : v1 (0x0) Log ID : A8:26:CB:E3:0A:C6:35:12:46:53:3F:E0:65:F1:4F:19: D9:6E:19:08:13:C4:1D:D9:6D:79:00:B3:12:3C:55:27 Timestamp : Aug 30 13:39:17.214 2026 GMT Extensions: 00:00:05:00:28:C9:1A:1B Signature : ecdsa-with-SHA256 30:45:02:20:41:79:A1:3A:C7:DB:BA:37:16:4E:E7:AD: 91:B3:6C:9B:C4:6A:E6:FE:C3:EB:19:2E:5D:37:A0:6C: 26:86:AC:65:02:21:00:F9:35:DC:F7:7A:86:BF:25:F3: 55:41:75:C1:2B:55:C6:D4:F3:9A:28:68:92:23:03:E4: 34:AE:CB:CB:7E:90:53
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-10-08T07:25:12+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
695
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
2156
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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