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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

fredyun.com · 144.79.70.2:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
CN=*.fredyun.com
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Valid from
2026-05-31T00:00:00+00:00
Expires
2026-12-15T23:59:59+00:00
Days remaining
69
Serial (hex)
0692A83BFF5453356946A4ACD4C2C972
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.fredyun.com, DNS:fredyun.com

SHA-256 fingerprint

B7:BD:BC:9F:AA:57:38:03:26:75:7B:AF:D4:40:A1:68:3E:D1:7D:68:AC:73:35:EC:C7:F0:22:E5:3F:5C:EE:40
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
87:D6:60:00:BA:C9:1F:11:E4:F9:D9:4C:D1:0C:CC:8E:A3:C8:77:64
subjectAltName
DNS:*.fredyun.com, DNS:fredyun.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 : 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 : May 31 13:17:51.502 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:6A:31:DB:69:F5:7C:5B:90:B0:7B:86:69: F8:C2:44:B2:3A:A6:AC:9D:71:7D:6E:73:57:10:7E:DA: 69:36:50:DB:02:20:55:AC:1F:B1:52:FF:E9:75:E8:D7: 3F:B7:8F:BC:5F:F5:70:F6:92:6A:CB:48:A4:C8:26:80: 83:D0:3B:83:AC:FC 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 : May 31 13:17:51.466 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:FB:B8:BB:12:E5:BB:B6:6F:EC:2F:5E: 0F:96:B9:F9:83:23:7D:C5:CA:8E:F2:F1:30:33:30:BE: F1:25:E7:C5:C9:02:21:00:8F:84:96:89:41:FA:ED:9D: DB:CF:91:CE:53:E9:1A:DB:29:0B:61:0D:CF:B0:76:A8: 1F:65:93:9B:94:70:66:7F 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 : May 31 13:17:51.513 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:92:55:6D:BB:D6:BC:60:5A:A3:E7:58: E9:38:E6:ED:9A:EC:61:41:F2:18:41:C7:AD:EF:63:9E: 32:8D:49:05:01:02:20:06:13:25:03:28:9B:8E:1F:F9: 3F:25:D0:92:8C:F7:6A:03:7D:75:D8:24:50:9D:53:74: A4:58:1C:6B:88:D5:5C
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-07T18:10:06+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
390
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
4117
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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