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

argedns.net · 45.74.179.240:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed
The certificate has expired.

Certificate verification failed

Subject
CN=cpcalendars.novatekosgb.com
Issuer
C=US O=Let's Encrypt CN=R11
Valid from
2025-04-10T21:00:47+00:00
Expires
2025-07-09T21:00:46+00:00
Days remaining
-445
Serial (hex)
06ECB258D769F79D57F0B5F3EEB6D4B1B816
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:cpanel.novatekosgb.com, DNS:cpcalendars.novatekosgb.com, DNS:cpcontacts.novatekosgb.com, DNS:webdisk.novatekosgb.com, DNS:webmail.novatekosgb.com

SHA-256 fingerprint

37:D1:82:99:C1:05:94:29:12:2E:FD:1D:BD:F1:18:0A:1E:90:22:51:F5:5C:D5:22:CE:B3:E0:2B:AA:42:39:0B
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
AE:15:93:54:53:51:2B:C5:2A:EB:76:80:0F:6A:A6:70:F0:98:04:E1
authorityKeyIdentifier
C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
authorityInfoAccess
OCSP - URI:http://r11.o.lencr.org CA Issuers - URI:http://r11.i.lencr.org/
subjectAltName
DNS:cpanel.novatekosgb.com, DNS:cpcalendars.novatekosgb.com, DNS:cpcontacts.novatekosgb.com, DNS:webdisk.novatekosgb.com, DNS:webmail.novatekosgb.com
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://r11.c.lencr.org/23.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : A2:E3:0A:E4:45:EF:BD:AD:9B:7E:38:ED:47:67:77:53: D7:82:5B:84:94:D7:2B:5E:1B:2C:C4:B9:50:A4:47:E7 Timestamp : Apr 10 21:59:17.607 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:04:CA:12:BC:89:92:BF:65:F5:71:FF:9D: 75:53:11:E7:4D:E0:57:52:EB:CD:8B:18:28:24:40:7D: EB:75:29:3B:02:20:32:1F:DC:17:73:9B:9A:E8:F6:8D: AD:AB:40:43:01:67:BC:89:67:60:E5:17:0F:46:8B:42: 91:C5:46:5F:6E:C2 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 7D:59:1E:12:E1:78:2A:7B:1C:61:67:7C:5E:FD:F8:D0: 87:5C:14:A0:4E:95:9E:B9:03:2F:D9:0E:8C:2E:79:B8 Timestamp : Apr 10 21:59:17.770 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:8F:CE:F4:98:2F:2C:0C:E1:00:DE:37: ED:F2:11:48:34:86:07:D7:9A:11:1C:8A:6C:B5:BC:4B: F2:16:EF:2F:42:02:21:00:F2:3A:B7:FC:49:52:0D:41: 63:F4:BF:D5:D5:9D:4A:E3:32:86:1B:83:EE:75:2E:C5: 4A:70:A2:89:3E:C3:46:CD
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-27T13:00:42+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=R11
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2024-03-13T00:00:00+00:00
Expires
2027-03-12T23:59:59+00:00
Days remaining
166
Serial (hex)
8A7D3E13D62F30EF2386BD29076B34F8
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

59:1E:9C:E6:C8:63:D3:A0:79:E9:FA:BE:14:78:C7:33:9A:26:B2:12:69:DD:E7:95:21:13:61:02:4A:E3:1A:44
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
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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