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

hostmysite.com · 216.185.130.55:443

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=*.hostmysite.com
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Valid from
2025-07-29T00:00:00+00:00
Expires
2026-08-08T23:59:59+00:00
Days remaining
-54
Serial (hex)
09746E6FEF6454ED9EE758083DA72569
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.hostmysite.com, DNS:hostmysite.com

SHA-256 fingerprint

5C:04:64:51:DF:E2:78:DE:F5:D8:FC:B1:07:CA:5E:A9:17:E9:A3:CB:0D:53:23:26:BE:BF:7A:5C:47:07:15:BD
Certificate extensions & PEM
authorityKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
subjectKeyIdentifier
94:5A:F6:8D:07:87:54:F8:D6:03:5E:6B:E2:CA:7A:AC:B2:48:1F:3B
subjectAltName
DNS:*.hostmysite.com, DNS:hostmysite.com
certificatePolicies
Policy: 2.23.140.1.2.1 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
crlDistributionPoints
Full Name: URI:http://cdp.rapidssl.com/RapidSSLTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.rapidssl.com CA Issuers - URI:http://cacerts.rapidssl.com/RapidSSLTLSRSACAG1.crt
basicConstraints
CA:FALSE
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 : Jul 29 10:33:41.238 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:80:79:92:69:8F:65:0B:BB:16:23:92: 15:C1:C0:ED:AD:CD:3F:23:3F:FE:6A:2A:E0:3A:BD:B5: F8:C3:D7:B2:3C:02:21:00:CC:D2:BC:AB:63:5D:35:B9: 89:A4:37:01:B9:4B:F6:07:92:85:52:D8:50:88:3E:10: 21:66:3A:8D:76:CD:AB:0B Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB: C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD Timestamp : Jul 29 10:33:41.288 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:5D:4C:74:1C:91:16:F3:37:AD:19:30:05: 90:03:3F:E1:66:C0:AE:00:E7:F2:13:0A:9C:B2:11:1F: A5:42:4B:94:02:21:00:A6:29:D5:8B:C8:5D:DA:5A:33: E2:31:E1:61:28:C4:AA:C8:24:C1:7F:95:E9:63:A0:4C: F8:F0:F6:B4:E5:DA:FA 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 : Jul 29 10:33:41.306 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:07:CB:BE:AD:8E:6A:C8:58:7A:AC:FD:37: 28:B2:94:E0:63:52:1A:F3:58:B2:3D:69:93:DA:F2:6F: CE:9A:C8:F8:02:20:41:ED:E1:A6:E8:E7:1F:AD:EF:78: 30:EE:5B:08:04:2B:D1:32:B5:61:72:E6:19:5C:7A:83: 63:28:85:52:CB:37
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-01T11:37:30+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:24:33+00:00
Expires
2027-11-02T12:24:33+00:00
Days remaining
397
Serial (hex)
0B259422CED9812A15A04E99528A0EFA
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

44:22:E9:63:EE:53:CD:58:CC:9F:85:CD:40:BF:5F:FE:C0:09:5F:DF:1A:15:45:35:66:1C:1C:06:BC:AD:C6:9B
Certificate extensions & PEM
subjectKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
authorityKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: 2.16.840.1.114412.1.1 CPS: https://www.digicert.com/CPS Policy: 2.16.840.1.114412.1.2 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2
-----BEGIN CERTIFICATE-----
MIIEszCCA5ugAwIBAgIQCyWUIs7ZgSoVoE6ZUooO+jANBgkqhkiG9w0BAQsFADBh
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBH
MjAeFw0xNzExMDIxMjI0MzNaFw0yNzExMDIxMjI0MzNaMGAxCzAJBgNVBAYTAlVT
MRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5j
b20xHzAdBgNVBAMTFlJhcGlkU1NMIFRMUyBSU0EgQ0EgRzEwggEiMA0GCSqGSIb3
DQEBAQUAA4IBDwAwggEKAoIBAQC/uVklRBI1FuJdUEkFCuDL/I3aJQiaZ6aibRHj
ap/ap9zy1aYNrphe7YcaNwMoPsZvXDR+hNJOo9gbgOYVTPq8gXc84I75YKOHiVA4
NrJJQZ6p2sJQyqx60HkEIjzIN+1LQLfXTlpuznToOa1hyTD0yyitFyOYwURM+/CI
8FNFMpBhw22hpeAQkOOLmsqT5QZJYeik7qlvn8gfD+XdDnk3kkuuu0eG+vuyrSGr
5uX5LRhFWlv1zFQDch/EKmd163m6z/ycx/qLa9zyvILc7cQpb+k7TLra9WE17YPS
n9ANjG+ECo9PDW3N9lwhKQCNvw1gGoguyCQu7HE7BnW8eSSFAgMBAAGjggFmMIIB
YjAdBgNVHQ4EFgQUDNtsgkkPSmcKuBTuesRIUojrVjgwHwYDVR0jBBgwFoAUTiJU
IBiV5uNu5g/6+rkS7QYXjzkwDgYDVR0PAQH/BAQDAgGGMB0GA1UdJQQWMBQGCCsG
AQUFBwMBBggrBgEFBQcDAjASBgNVHRMBAf8ECDAGAQH/AgEAMDQGCCsGAQUFBwEB
BCgwJjAkBggrBgEFBQcwAYYYaHR0cDovL29jc3AuZGlnaWNlcnQuY29tMEIGA1Ud
HwQ7MDkwN6A1oDOGMWh0dHA6Ly9jcmwzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEds
b2JhbFJvb3RHMi5jcmwwYwYDVR0gBFwwWjA3BglghkgBhv1sAQEwKjAoBggrBgEF
BQcCARYcaHR0cHM6Ly93d3cuZGlnaWNlcnQuY29tL0NQUzALBglghkgBhv1sAQIw
CAYGZ4EMAQIBMAgGBmeBDAECAjANBgkqhkiG9w0BAQsFAAOCAQEAGUSlOb4K3Wtm
SlbmE50UYBHXM0SKXPqHMzk6XQUpCheF/4qU8aOhajsyRQFDV1ih/uPIg7YHRtFi
CTq4G+zb43X1T77nJgSOI9pq/TqCwtukZ7u9VLL3JAq3Wdy2moKLvvC8tVmRzkAe
0xQCkRKIjbBG80MSyDX/R4uYgj6ZiNT/Zg6GI6RofgqgpDdssLc0XIRQEotxIZcK
zP3pGJ9FCbMHmMLLyuBd+uCWvVcF2ogYAawufChS/PT61D9rqzPRS5I2uqa3tmIT
44JhJgWhBnFMb7AGQkvNq9KNS9dd3GWc17H/dXa1enoxzWjE0hBdFjxPhUb0W3wi
8o34/m8Fxw==
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2013-08-01T12:00:00+00:00
Expires
2038-01-15T12:00:00+00:00
Days remaining
4124
Serial (hex)
033AF1E6A711A9A0BB2864B11D09FAE5
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

CB:3C:CB:B7:60:31:E5:E0:13:8F:8D:D3:9A:23:F9:DE:47:FF:C3:5E:43:C1:14:4C:EA:27:D4:6A:5A:B1:CB:5F
Certificate extensions & PEM
basicConstraints
CA:TRUE
keyUsage
Digital Signature, Certificate Sign, CRL Sign
subjectKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
-----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.

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