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

ns2.i1web.com · 185.196.21.254:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. Peer certificate subjectAltName did not match expected name `ns2.i1web.com'

Certificate verification failed

Subject
CN=autoconfig.server1.i1web.com
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-10-16T11:41:58+00:00
Expires
2027-01-14T11:41:57+00:00
Days remaining
71
Serial (hex)
06DF38E5429AFF6AB0EB87D48B58CE228707
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:autoconfig.server1.i1web.com, DNS:autodiscover.server1.i1web.com, DNS:cpanel.server1.i1web.com, DNS:cpcalendars.server1.i1web.com, DNS:cpcontacts.server1.i1web.com, DNS:ipv6.server1.i1web.com, DNS:mail.server1.i1web.com, DNS:server1.i1web.com, DNS:vmi2971756.contaboserver.net, DNS:webdisk.server1.i1web.com, DNS:webmail.server1.i1web.com, DNS:whm.server1.i1web.com, DNS:www.server1.i1web.com

SHA-256 fingerprint

D1:C9:59:59:05:21:74:54:E1:3C:85:CA:A1:D0:FB:ED:22:F7:23:2E:41:FB:14:8E:CE:C7:23:42:10:32:D6:B3
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
DE:0E:A6:AB:9F:CC:16:3A:73:06:A1:FF:7D:00:46:43:76:9F:C0:09
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.server1.i1web.com, DNS:autodiscover.server1.i1web.com, DNS:cpanel.server1.i1web.com, DNS:cpcalendars.server1.i1web.com, DNS:cpcontacts.server1.i1web.com, DNS:ipv6.server1.i1web.com, DNS:mail.server1.i1web.com, DNS:server1.i1web.com, DNS:vmi2971756.contaboserver.net, DNS:webdisk.server1.i1web.com, DNS:webmail.server1.i1web.com, DNS:whm.server1.i1web.com, DNS:www.server1.i1web.com
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/8.crl
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 : Oct 16 12:40:29.125 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:DB:46:B6:E8:17:E9:D3:46:ED:3C:35: E7:D3:6C:77:A9:AD:2C:35:58:44:90:6D:07:00:A2:70: E8:3E:22:68:B6:02:21:00:85:8F:EB:3C:B7:81:1C:9B: 4A:97:28:2D:A2:BC:81:80:32:AE:D7:98:12:0F:F4:DE: DB:74:1A:B5:53:19:18:B6 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1A:8B:9D:6B:8D:D7:91:D1:CD:05:49:ED:B6:03:55:D6: 06:B6:4F:AD:30:DB:71:FE:78:8F:0F:C7:C8:FB:C4:B1 Timestamp : Oct 16 12:40:30.580 2026 GMT Extensions: 00:00:05:00:09:72:05:3E Signature : ecdsa-with-SHA256 30:44:02:20:04:90:BA:A5:04:74:61:A6:52:C2:77:A8: 77:18:7B:E0:CF:22:F5:FD:6B:85:50:8D:B3:76:AB:A3: 95:28:3D:15:02:20:07:14:AD:6E:DB:CE:81:7D:52:2A: 91:4B:D0:35:FC:A1:13:E5:56:EA:4D:74:14:01:F6:CB: 32:8D:1E:C1:E3:20
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-03T22:32:40+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
669
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
2130
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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