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

gtld-whois.com · 41.76.104.27:443

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

Certificate verification failed

Subject
CN=autoconfig.cms.africa.com
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-10-15T18:04:12+00:00
Expires
2027-01-13T18:04:11+00:00
Days remaining
66
Serial (hex)
05A97621D1C4F0EAEE66E02ED05C87F64783
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:autoconfig.cms.africa.com, DNS:autodiscover.cms.africa.com, DNS:cms.africa.com, DNS:cpanel.cms.africa.com, DNS:cpcalendars.cms.africa.com, DNS:cpcontacts.cms.africa.com, DNS:ipv6.cms.africa.com, DNS:mail.cms.africa.com, DNS:webdisk.cms.africa.com, DNS:webmail.cms.africa.com, DNS:www.cms.africa.com

SHA-256 fingerprint

2E:F4:90:D9:6E:4C:2F:18:28:E5:E1:7C:1E:1A:64:45:27:59:F0:7E:D1:FC:6D:6A:71:AD:49:3E:17:39:56:15
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
53:33:57:DE:C3:CC:BA:9D:DD:B5:58:BA:B5:84:00:80:E4:53:F7:80
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:autoconfig.cms.africa.com, DNS:autodiscover.cms.africa.com, DNS:cms.africa.com, DNS:cpanel.cms.africa.com, DNS:cpcalendars.cms.africa.com, DNS:cpcontacts.cms.africa.com, DNS:ipv6.cms.africa.com, DNS:mail.cms.africa.com, DNS:webdisk.cms.africa.com, DNS:webmail.cms.africa.com, DNS:www.cms.africa.com
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/4.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 00:1A:5D:1A:1C:2D:93:75:B6:48:55:78:F8:2F:71:A1: AE:6E:EF:39:7D:29:7C:8A:E3:15:7B:CA:DE:E1:A0:1E Timestamp : Oct 15 19:02:43.015 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:A0:89:9B:04:AC:E3:AE:35:06:A6:EC: C4:67:B0:38:18:9C:F4:CA:E7:3D:BA:E3:DC:4A:D6:2B: D9:45:3C:88:F8:02:20:23:B3:92:7A:E7:91:A1:F1:8B: 8B:A2:AC:BE:CC:A3:18:EE:E5:98:4B:C5:21:D2:FE:93: D2:0F:BE:86:66:D3:F4 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 59:6E:6C:33:86:94:B2:59:72:A2:56:C8:A0:E8:DD:90: 4A:76:E8:08:3D:DA:87:3B:01:08:38:28:14:3C:EE:59 Timestamp : Oct 15 19:02:43.167 2026 GMT Extensions: 00:00:05:00:0E:01:63:D1 Signature : ecdsa-with-SHA256 30:46:02:21:00:C2:3D:32:25:0A:1D:45:7D:2F:4C:79: 95:62:29:31:B7:83:C9:7C:45:52:E5:7D:E1:D8:98:4E: 95:7C:5D:D4:CA:02:21:00:FA:61:8B:9A:9D:B7:EA:79: 3D:EE:71:D6:F7:FA:17:10:10:1E:9C:84:06:D6:78:C9: AB:35:0F:0A:A3:9B:7A:A8
-----BEGIN CERTIFICATE-----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=
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-07T20:58:20+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
665
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
2126
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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