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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

fb.com · 57.144.222.1:443

Verified
The certificate expires within 30 days.

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

Subject
C=US ST=California L=Menlo Park O=Meta Platforms, Inc. CN=*.fb.com
Issuer
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid from
2026-07-02T00:00:00+00:00
Expires
2026-09-30T23:59:59+00:00
Days remaining
8
Serial (hex)
059C076682609BC1C52038878D087F79
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.fb.com, DNS:fb.com

SHA-256 fingerprint

49:C2:7D:61:5F:70:D2:BE:54:CE:60:22:04:BD:5A:E7:D3:3C:39:EA:78:74:FF:B8:F2:AD:E1:E6:07:A9:0D:04
Certificate extensions & PEM
authorityKeyIdentifier
74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
subjectKeyIdentifier
52:A8:03:E5:EC:F8:75:79:2C:66:F2:F5:7F:6D:F1:26:C0:1B:C6:0F
subjectAltName
DNS:*.fb.com, DNS:fb.com
certificatePolicies
Policy: 2.23.140.1.2.2 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl Full Name: URI:http://crl4.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.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 : Jul 2 00:37:21.621 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:A4:4D:E2:97:CB:E3:0F:17:21:3C:39: 56:D1:75:F1:89:C3:38:C7:53:FC:EB:E1:18:DD:02:1B: 7B:DA:06:C7:82:02:20:2C:FD:C2:BE:31:6A:E8:51:7E: E5:56:36:B1:DD:6F:84:E9:50:63:C0:41:88:5C:FF:3D: FA:C0:45:D5:3B:D6:6D 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 2 00:37:21.575 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:38:31:F9:95:C1:87:18:6A:1E:AE:49:BC: 27:E9:92:A7:20:9E:C4:4A:35:34:05:35:26:ED:9A:8E: 1F:73:4D:F1:02:21:00:9B:73:16:66:28:9A:1A:E9:7C: E3:85:6A:F5:4A:C7:E2:D0:AB:02:EB:45:E0:18:2D:93: 62:42:B6:1D:5F:3D:F6 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 2 00:37:21.634 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:97:0B:8C:14:94:8B:49:B9:9E:E6:AC: 76:1E:1A:8E:63:2A:16:2F:B1:40:FC:91:84:8D:51:A4: B2:25:41:5C:69:02:21:00:81:CC:EE:04:D2:70:36:58: 5A:4B:30:AE:5E:12:6D:54:85:FB:11:61:66:1F:57:E3: 43:26:07:99:A3:8A:B3:23
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-22T18:40:27+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2021-03-30T00:00:00+00:00
Expires
2031-03-29T23:59:59+00:00
Days remaining
1649
Serial (hex)
0CF5BD062B5602F47AB8502C23CCF066
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

C8:02:5F:9F:C6:5F:DF:C9:5B:3C:A8:CC:78:67:B9:A5:87:B5:27:79:73:95:79:17:46:3F:C8:13:D0:B6:25:A9
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
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
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalRootG2.crt
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: 2.16.840.1.114412.2.1 Policy: 2.23.140.1.1 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2 Policy: 2.23.140.1.2.3
-----BEGIN CERTIFICATE-----
MIIEyDCCA7CgAwIBAgIQDPW9BitWAvR6uFAsI8zwZjANBgkqhkiG9w0BAQsFADBh
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBH
MjAeFw0yMTAzMzAwMDAwMDBaFw0zMTAzMjkyMzU5NTlaMFkxCzAJBgNVBAYTAlVT
MRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxMzAxBgNVBAMTKkRpZ2lDZXJ0IEdsb2Jh
bCBHMiBUTFMgUlNBIFNIQTI1NiAyMDIwIENBMTCCASIwDQYJKoZIhvcNAQEBBQAD
ggEPADCCAQoCggEBAMz3EGJPprtjb+2QUlbFbSd7ehJWivH0+dbn4Y+9lavyYEEV
cNsSAPonCrVXOFt9slGTcZUOakGUWzUb+nv6u8W+JDD+Vu/E832X4xT1FE3LpxDy
FuqrIvAxIhFhaZAmunjZlx/jfWardUSVc8is/+9dCopZQ+GssjoP80j812s3wWPc
3kbW20X+fSP9kOhRBx5Ro1/tSUZUfyyIxfQTnJcVPAPooTncaQwywa8WV0yUR0J8
osicfebUTVSvQpmowQTCd5zWSOTOEeAqgJnwQ3DPP3Zr0UxJqyRewg2C/Uaoq2yT
zGJSQnWS+Jr6Xl6ysGHlHx+5fwmY6D36g39HaaECAwEAAaOCAYIwggF+MBIGA1Ud
EwEB/wQIMAYBAf8CAQAwHQYDVR0OBBYEFHSFgMBmx9833s+9KTeqAx2+7c0XMB8G
A1UdIwQYMBaAFE4iVCAYlebjbuYP+vq5Eu0GF485MA4GA1UdDwEB/wQEAwIBhjAd
BgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwdgYIKwYBBQUHAQEEajBoMCQG
CCsGAQUFBzABhhhodHRwOi8vb2NzcC5kaWdpY2VydC5jb20wQAYIKwYBBQUHMAKG
NGh0dHA6Ly9jYWNlcnRzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEdsb2JhbFJvb3RH
Mi5jcnQwQgYDVR0fBDswOTA3oDWgM4YxaHR0cDovL2NybDMuZGlnaWNlcnQuY29t
L0RpZ2lDZXJ0R2xvYmFsUm9vdEcyLmNybDA9BgNVHSAENjA0MAsGCWCGSAGG/WwC
ATAHBgVngQwBATAIBgZngQwBAgEwCAYGZ4EMAQICMAgGBmeBDAECAzANBgkqhkiG
9w0BAQsFAAOCAQEAkPFwyyiXaZd8dP3A+iZ7U6utzWX9upwGnIrXWkOH7U1MVl+t
wcW1BSAuWdH/SvWgKtiwla3JLko716f2b4gp/DA/JIS7w7d7kwcsr4drdjPtAFVS
slme5LnQ89/nD/7d+MS5EHKBCQRfz5eeLjJ1js+aWNJXMX43AYGyZm0pGrFmCW3R
bpD0ufovARTFXFZkAdl9h6g4U5+LXUZtXMYnhIHUfoyMo5tS58aI7Dd8KvvwVVo4
chDYABPPTHPbqjc1qCmBaZx2vN4Ye5DUys/vZwP9BFohFrH/6j/f3IL16/RZkiMN
JCqVJUzKoZHm1Lesh3Sz8W2jmdv51b2EQJ8HmA==
-----END CERTIFICATE-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

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