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

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
2026-08-17T00:00:00+00:00
Expires
2026-11-15T23:59:59+00:00
Days remaining
7
Serial (hex)
0D6F55634A5E61DD3BB6ACB7C34D791E
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

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

SHA-256 fingerprint

B0:42:B3:83:0C:E8:11:34:8D:A7:1D:9B:12:C8:B4:C2:98:11:1F:D0:97:9C:50:52:BC:24:78:71:AE:45:BF:60
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
2D:94:2F:AA:E8:33:02:3B:A8:81:0C:2E:E9:A8:F7:D9:2B:68:3F:0E
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 : Aug 17 00:35:17.246 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:93:E4:64:07:6B:2E:40:40:E8:05:69: 07:C2:FE:5A:22:EB:B5:DB:8D:AA:BF:93:8D:76:E6:1E: FC:89:2B:FD:4D:02:21:00:8A:6C:7F:6D:B5:EC:23:61: E6:22:A6:47:F4:2C:FD:52:9F:AB:9B:96:97:59:43:FA: C4:6A:7C:3E:3E:42:72:D7 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB: B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14 Timestamp : Aug 17 00:35:17.264 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:7F:AA:53:E3:A0:88:4A:EC:1F:91:3B:D5: F4:A7:36:5E:37:E7:FF:B7:E4:D6:B9:F8:B3:D8:CA:AC: AE:A5:15:8E:02:20:37:F6:B7:7A:9D:64:4B:EB:DE:85: 9C:FE:1E:32:D3:9D:68:C5:6B:89:E3:BB:BC:E1:61:DB: 2E:35:DB:73:7C:65 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 : Aug 17 00:35:17.257 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:24:E3:18:9C:FA:66:69:66:A8:B6:07:A2: D5:7A:52:29:4D:54:A0:BE:60:07:57:F1:8A:5D:7E:D5: 95:81:7C:F7:02:21:00:BC:B0:2D:BD:CD:09:65:CE:8A: 0B:46:D0:C3:FF:86:AB:8E:4D:54:8F:DB:A5:04:81:64: 73:EC:EB:4B:06:51:4A
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-11-08T05:29:28+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
1602
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-----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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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