SSL Report: edge-secure-shv-01-lhr8.facebook.com (57.144.240.139)
Assessed on:  Wed, 12 Nov 2025 07:27:35 UTC | Clear cache

Due to a recently discovered bug in Apple's code, your browser is exposed to MITM attacks. Click here for more information.

Summary
Overall Rating
A+
0
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Certificate
 
Protocol Support
 
Key Exchange
 
Cipher Strength
 

Visit our documentation page for more information, configuration guides, and books. Known issues are documented here.
This site works only in browsers with SNI support.
This server supports TLS 1.3.  MORE INFO »
HTTP Strict Transport Security (HSTS) with long duration deployed on this server.  MORE INFO »
DNS Certification Authority Authorization (CAA) Policy found for this domain.  MORE INFO »
Certificate #1: EC 256 bits (SHA256withRSA)
Server Key and Certificate #1
Subject *.facebook.com
Fingerprint SHA256: f9755ee34a1465cb982f2fb646fd6fab3d2db53f217263214cf2635a6239c9c9
Pin SHA256: yJdSYYtH0cAuf9L0QWpsPQ6X4SuiNb6cYgQRHXmhnTc=
Common names *.facebook.com
Alternative names *.facebook.com *.facebook.net *.fbcdn.net *.fbsbx.com *.m.facebook.com *.messenger.com *.xx.fbcdn.net *.xy.fbcdn.net *.xz.fbcdn.net facebook.com messenger.com
Serial Number 04b7891239796f4cc843deadcf85994d
Valid from Thu, 21 Aug 2025 00:00:00 UTC
Valid until Wed, 19 Nov 2025 23:59:59 UTC (expires in 7 days, 14 hours)
Key EC 256 bits
Weak key (Debian) No
Issuer DigiCert SHA2 High Assurance Server CA
AIA: http://cacerts.digicert.com/DigiCertSHA2HighAssuranceServerCA.crt
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL, OCSP
CRL: http://crl3.digicert.com/sha2-ha-server-g6.crl
OCSP: http://ocsp.digicert.com
Revocation status Good (not revoked)
CRL ERROR: IOException occurred
DNS CAA Yes
policy host: facebook.com
issue: digicert.com; account=271b0beda0771d006aa3a6c11b05187d456d6c239b46cb5241196095b09c92af flags:0
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 2 (2896 bytes)
Chain issues None
#2
Subject DigiCert SHA2 High Assurance Server CA
Fingerprint SHA256: 19400be5b7a31fb733917700789d2f0a2471c0c9d506c0e504c06c16d7cb17c0
Pin SHA256: k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws=
Valid until Sun, 22 Oct 2028 12:00:00 UTC (expires in 2 years and 11 months)
Key RSA 2048 bits (e 65537)
Issuer DigiCert High Assurance EV Root CA
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Trusted
1 Sent by server *.facebook.com
Fingerprint SHA256: f9755ee34a1465cb982f2fb646fd6fab3d2db53f217263214cf2635a6239c9c9
Pin SHA256: yJdSYYtH0cAuf9L0QWpsPQ6X4SuiNb6cYgQRHXmhnTc=

EC 256 bits / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert SHA2 High Assurance Server CA
Fingerprint SHA256: 19400be5b7a31fb733917700789d2f0a2471c0c9d506c0e504c06c16d7cb17c0
Pin SHA256: k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert High Assurance EV Root CA   Self-signed
Fingerprint SHA256: 7431e5f4c3c1ce4690774f0b61e05440883ba9a01ed00ba6abd7806ed3b118cf
Pin SHA256: WoiWRyIOVNa9ihaBciRSC7XHjliYS9VwUGOIud4PB18=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server *.facebook.com
Fingerprint SHA256: f9755ee34a1465cb982f2fb646fd6fab3d2db53f217263214cf2635a6239c9c9
Pin SHA256: yJdSYYtH0cAuf9L0QWpsPQ6X4SuiNb6cYgQRHXmhnTc=

EC 256 bits / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert SHA2 High Assurance Server CA
Fingerprint SHA256: 19400be5b7a31fb733917700789d2f0a2471c0c9d506c0e504c06c16d7cb17c0
Pin SHA256: k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert High Assurance EV Root CA   Self-signed
Fingerprint SHA256: 7431e5f4c3c1ce4690774f0b61e05440883ba9a01ed00ba6abd7806ed3b118cf
Pin SHA256: WoiWRyIOVNa9ihaBciRSC7XHjliYS9VwUGOIud4PB18=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server *.facebook.com
Fingerprint SHA256: f9755ee34a1465cb982f2fb646fd6fab3d2db53f217263214cf2635a6239c9c9
Pin SHA256: yJdSYYtH0cAuf9L0QWpsPQ6X4SuiNb6cYgQRHXmhnTc=

EC 256 bits / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert SHA2 High Assurance Server CA
Fingerprint SHA256: 19400be5b7a31fb733917700789d2f0a2471c0c9d506c0e504c06c16d7cb17c0
Pin SHA256: k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert High Assurance EV Root CA   Self-signed
Fingerprint SHA256: 7431e5f4c3c1ce4690774f0b61e05440883ba9a01ed00ba6abd7806ed3b118cf
Pin SHA256: WoiWRyIOVNa9ihaBciRSC7XHjliYS9VwUGOIud4PB18=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server *.facebook.com
Fingerprint SHA256: f9755ee34a1465cb982f2fb646fd6fab3d2db53f217263214cf2635a6239c9c9
Pin SHA256: yJdSYYtH0cAuf9L0QWpsPQ6X4SuiNb6cYgQRHXmhnTc=

EC 256 bits / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert SHA2 High Assurance Server CA
Fingerprint SHA256: 19400be5b7a31fb733917700789d2f0a2471c0c9d506c0e504c06c16d7cb17c0
Pin SHA256: k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert High Assurance EV Root CA   Self-signed
Fingerprint SHA256: 7431e5f4c3c1ce4690774f0b61e05440883ba9a01ed00ba6abd7806ed3b118cf
Pin SHA256: WoiWRyIOVNa9ihaBciRSC7XHjliYS9VwUGOIud4PB18=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server *.facebook.com
Fingerprint SHA256: f9755ee34a1465cb982f2fb646fd6fab3d2db53f217263214cf2635a6239c9c9
Pin SHA256: yJdSYYtH0cAuf9L0QWpsPQ6X4SuiNb6cYgQRHXmhnTc=

EC 256 bits / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert SHA2 High Assurance Server CA
Fingerprint SHA256: 19400be5b7a31fb733917700789d2f0a2471c0c9d506c0e504c06c16d7cb17c0
Pin SHA256: k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert High Assurance EV Root CA   Self-signed
Fingerprint SHA256: 7431e5f4c3c1ce4690774f0b61e05440883ba9a01ed00ba6abd7806ed3b118cf
Pin SHA256: WoiWRyIOVNa9ihaBciRSC7XHjliYS9VwUGOIud4PB18=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate

Click here to expand

Certificate #2: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject *.secure.facebook.com
Fingerprint SHA256: c6fb6d2e2cf2c9872ddec7f40b73ddf51fe12d9adcd19c45123461f27d674a1a
Pin SHA256: sx30uChI8AnXvAWHV5CuRT1SKTSHhPSAOtjFomPb+wI=
Common names *.secure.facebook.com
Alternative names *.secure.facebook.com secure.facebook.com   MISMATCH
Serial Number 079b2c2cbf6acc06e0e2c8d7af7eb953
Valid from Thu, 21 Aug 2025 00:00:00 UTC
Valid until Wed, 19 Nov 2025 23:59:59 UTC (expires in 7 days, 14 hours)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer DigiCert SHA2 High Assurance Server CA
AIA: http://cacerts.digicert.com/DigiCertSHA2HighAssuranceServerCA.crt
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL, OCSP
CRL: http://crl3.digicert.com/sha2-ha-server-g6.crl
OCSP: http://ocsp.digicert.com
Revocation status Good (not revoked)
CRL ERROR: IOException occurred
Trusted No   NOT TRUSTED
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 2 (2977 bytes)
Chain issues None
#2
Subject DigiCert SHA2 High Assurance Server CA
Fingerprint SHA256: 19400be5b7a31fb733917700789d2f0a2471c0c9d506c0e504c06c16d7cb17c0
Pin SHA256: k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws=
Valid until Sun, 22 Oct 2028 12:00:00 UTC (expires in 2 years and 11 months)
Key RSA 2048 bits (e 65537)
Issuer DigiCert High Assurance EV Root CA
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: c6fb6d2e2cf2c9872ddec7f40b73ddf51fe12d9adcd19c45123461f27d674a1a])
1 Sent by server *.secure.facebook.com
Fingerprint SHA256: c6fb6d2e2cf2c9872ddec7f40b73ddf51fe12d9adcd19c45123461f27d674a1a
Pin SHA256: sx30uChI8AnXvAWHV5CuRT1SKTSHhPSAOtjFomPb+wI=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert SHA2 High Assurance Server CA
Fingerprint SHA256: 19400be5b7a31fb733917700789d2f0a2471c0c9d506c0e504c06c16d7cb17c0
Pin SHA256: k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert High Assurance EV Root CA   Self-signed
Fingerprint SHA256: 7431e5f4c3c1ce4690774f0b61e05440883ba9a01ed00ba6abd7806ed3b118cf
Pin SHA256: WoiWRyIOVNa9ihaBciRSC7XHjliYS9VwUGOIud4PB18=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: c6fb6d2e2cf2c9872ddec7f40b73ddf51fe12d9adcd19c45123461f27d674a1a])
1 Sent by server *.secure.facebook.com
Fingerprint SHA256: c6fb6d2e2cf2c9872ddec7f40b73ddf51fe12d9adcd19c45123461f27d674a1a
Pin SHA256: sx30uChI8AnXvAWHV5CuRT1SKTSHhPSAOtjFomPb+wI=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert SHA2 High Assurance Server CA
Fingerprint SHA256: 19400be5b7a31fb733917700789d2f0a2471c0c9d506c0e504c06c16d7cb17c0
Pin SHA256: k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert High Assurance EV Root CA   Self-signed
Fingerprint SHA256: 7431e5f4c3c1ce4690774f0b61e05440883ba9a01ed00ba6abd7806ed3b118cf
Pin SHA256: WoiWRyIOVNa9ihaBciRSC7XHjliYS9VwUGOIud4PB18=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: c6fb6d2e2cf2c9872ddec7f40b73ddf51fe12d9adcd19c45123461f27d674a1a])
1 Sent by server *.secure.facebook.com
Fingerprint SHA256: c6fb6d2e2cf2c9872ddec7f40b73ddf51fe12d9adcd19c45123461f27d674a1a
Pin SHA256: sx30uChI8AnXvAWHV5CuRT1SKTSHhPSAOtjFomPb+wI=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert SHA2 High Assurance Server CA
Fingerprint SHA256: 19400be5b7a31fb733917700789d2f0a2471c0c9d506c0e504c06c16d7cb17c0
Pin SHA256: k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert High Assurance EV Root CA   Self-signed
Fingerprint SHA256: 7431e5f4c3c1ce4690774f0b61e05440883ba9a01ed00ba6abd7806ed3b118cf
Pin SHA256: WoiWRyIOVNa9ihaBciRSC7XHjliYS9VwUGOIud4PB18=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: c6fb6d2e2cf2c9872ddec7f40b73ddf51fe12d9adcd19c45123461f27d674a1a])
1 Sent by server *.secure.facebook.com
Fingerprint SHA256: c6fb6d2e2cf2c9872ddec7f40b73ddf51fe12d9adcd19c45123461f27d674a1a
Pin SHA256: sx30uChI8AnXvAWHV5CuRT1SKTSHhPSAOtjFomPb+wI=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert SHA2 High Assurance Server CA
Fingerprint SHA256: 19400be5b7a31fb733917700789d2f0a2471c0c9d506c0e504c06c16d7cb17c0
Pin SHA256: k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert High Assurance EV Root CA   Self-signed
Fingerprint SHA256: 7431e5f4c3c1ce4690774f0b61e05440883ba9a01ed00ba6abd7806ed3b118cf
Pin SHA256: WoiWRyIOVNa9ihaBciRSC7XHjliYS9VwUGOIud4PB18=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: c6fb6d2e2cf2c9872ddec7f40b73ddf51fe12d9adcd19c45123461f27d674a1a])
1 Sent by server *.secure.facebook.com
Fingerprint SHA256: c6fb6d2e2cf2c9872ddec7f40b73ddf51fe12d9adcd19c45123461f27d674a1a
Pin SHA256: sx30uChI8AnXvAWHV5CuRT1SKTSHhPSAOtjFomPb+wI=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert SHA2 High Assurance Server CA
Fingerprint SHA256: 19400be5b7a31fb733917700789d2f0a2471c0c9d506c0e504c06c16d7cb17c0
Pin SHA256: k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert High Assurance EV Root CA   Self-signed
Fingerprint SHA256: 7431e5f4c3c1ce4690774f0b61e05440883ba9a01ed00ba6abd7806ed3b118cf
Pin SHA256: WoiWRyIOVNa9ihaBciRSC7XHjliYS9VwUGOIud4PB18=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate

Click here to expand

Click here to expand

Certificate #3: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject *.facebook.com
Fingerprint SHA256: 97cb35893cc0760cb890f02fcfa7cced2f0223871a46f90db45cae09a5a2031e
Pin SHA256: U1oNtlPshRIKLDi3TjMP8URHLtjeg6q6C4AqX2RLfAE=
Common names *.facebook.com
Alternative names *.facebook.com *.facebook.net *.fbcdn.net *.fbsbx.com *.m.facebook.com *.messenger.com *.xx.fbcdn.net *.xy.fbcdn.net *.xz.fbcdn.net facebook.com messenger.com
Serial Number 09eec4f8ba9be2bafd2ed533b9707b44
Valid from Thu, 21 Aug 2025 00:00:00 UTC
Valid until Wed, 19 Nov 2025 23:59:59 UTC (expires in 7 days, 14 hours)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer DigiCert SHA2 High Assurance Server CA
AIA: http://cacerts.digicert.com/DigiCertSHA2HighAssuranceServerCA.crt
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL, OCSP
CRL: http://crl3.digicert.com/sha2-ha-server-g6.crl
OCSP: http://ocsp.digicert.com
Revocation status Good (not revoked)
CRL ERROR: IOException occurred
DNS CAA Yes
policy host: facebook.com
issue: digicert.com; account=271b0beda0771d006aa3a6c11b05187d456d6c239b46cb5241196095b09c92af flags:0
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 2 (3100 bytes)
Chain issues None
#2
Subject DigiCert SHA2 High Assurance Server CA
Fingerprint SHA256: 19400be5b7a31fb733917700789d2f0a2471c0c9d506c0e504c06c16d7cb17c0
Pin SHA256: k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws=
Valid until Sun, 22 Oct 2028 12:00:00 UTC (expires in 2 years and 11 months)
Key RSA 2048 bits (e 65537)
Issuer DigiCert High Assurance EV Root CA
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Trusted
1 Sent by server *.facebook.com
Fingerprint SHA256: 97cb35893cc0760cb890f02fcfa7cced2f0223871a46f90db45cae09a5a2031e
Pin SHA256: U1oNtlPshRIKLDi3TjMP8URHLtjeg6q6C4AqX2RLfAE=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert SHA2 High Assurance Server CA
Fingerprint SHA256: 19400be5b7a31fb733917700789d2f0a2471c0c9d506c0e504c06c16d7cb17c0
Pin SHA256: k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert High Assurance EV Root CA   Self-signed
Fingerprint SHA256: 7431e5f4c3c1ce4690774f0b61e05440883ba9a01ed00ba6abd7806ed3b118cf
Pin SHA256: WoiWRyIOVNa9ihaBciRSC7XHjliYS9VwUGOIud4PB18=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server *.facebook.com
Fingerprint SHA256: 97cb35893cc0760cb890f02fcfa7cced2f0223871a46f90db45cae09a5a2031e
Pin SHA256: U1oNtlPshRIKLDi3TjMP8URHLtjeg6q6C4AqX2RLfAE=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert SHA2 High Assurance Server CA
Fingerprint SHA256: 19400be5b7a31fb733917700789d2f0a2471c0c9d506c0e504c06c16d7cb17c0
Pin SHA256: k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert High Assurance EV Root CA   Self-signed
Fingerprint SHA256: 7431e5f4c3c1ce4690774f0b61e05440883ba9a01ed00ba6abd7806ed3b118cf
Pin SHA256: WoiWRyIOVNa9ihaBciRSC7XHjliYS9VwUGOIud4PB18=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server *.facebook.com
Fingerprint SHA256: 97cb35893cc0760cb890f02fcfa7cced2f0223871a46f90db45cae09a5a2031e
Pin SHA256: U1oNtlPshRIKLDi3TjMP8URHLtjeg6q6C4AqX2RLfAE=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert SHA2 High Assurance Server CA
Fingerprint SHA256: 19400be5b7a31fb733917700789d2f0a2471c0c9d506c0e504c06c16d7cb17c0
Pin SHA256: k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert High Assurance EV Root CA   Self-signed
Fingerprint SHA256: 7431e5f4c3c1ce4690774f0b61e05440883ba9a01ed00ba6abd7806ed3b118cf
Pin SHA256: WoiWRyIOVNa9ihaBciRSC7XHjliYS9VwUGOIud4PB18=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server *.facebook.com
Fingerprint SHA256: 97cb35893cc0760cb890f02fcfa7cced2f0223871a46f90db45cae09a5a2031e
Pin SHA256: U1oNtlPshRIKLDi3TjMP8URHLtjeg6q6C4AqX2RLfAE=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert SHA2 High Assurance Server CA
Fingerprint SHA256: 19400be5b7a31fb733917700789d2f0a2471c0c9d506c0e504c06c16d7cb17c0
Pin SHA256: k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert High Assurance EV Root CA   Self-signed
Fingerprint SHA256: 7431e5f4c3c1ce4690774f0b61e05440883ba9a01ed00ba6abd7806ed3b118cf
Pin SHA256: WoiWRyIOVNa9ihaBciRSC7XHjliYS9VwUGOIud4PB18=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server *.facebook.com
Fingerprint SHA256: 97cb35893cc0760cb890f02fcfa7cced2f0223871a46f90db45cae09a5a2031e
Pin SHA256: U1oNtlPshRIKLDi3TjMP8URHLtjeg6q6C4AqX2RLfAE=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert SHA2 High Assurance Server CA
Fingerprint SHA256: 19400be5b7a31fb733917700789d2f0a2471c0c9d506c0e504c06c16d7cb17c0
Pin SHA256: k2v657xBsOVe1PQRwOsHsw3bsGT2VzIqz5K+59sNQws=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert High Assurance EV Root CA   Self-signed
Fingerprint SHA256: 7431e5f4c3c1ce4690774f0b61e05440883ba9a01ed00ba6abd7806ed3b118cf
Pin SHA256: WoiWRyIOVNa9ihaBciRSC7XHjliYS9VwUGOIud4PB18=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate

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Configuration
Protocols
TLS 1.3 Yes
TLS 1.2 Yes*
TLS 1.1 No
TLS 1.0 No
SSL 3 No
SSL 2 No
(*) Experimental: Server negotiated using No-SNI


Cipher Suites
# TLS 1.3 (suites in server-preferred order)
TLS_AES_128_GCM_SHA256 (0x1301)   ECDH x25519 (eq. 3072 bits RSA)   FS 128
TLS_CHACHA20_POLY1305_SHA256 (0x1303)   ECDH x25519 (eq. 3072 bits RSA)   FS 256P
TLS_AES_256_GCM_SHA384 (0x1302)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
# TLS 1.2 (suites in server-preferred order)
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 (0xc02b)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 128
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 (0xc02c)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca9)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 128
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca8)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA (0xc009)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA (0xc00a)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
(P) This server prefers ChaCha20 suites with clients that don't have AES-NI (e.g., Android devices)


Handshake Simulation
Android 4.4.2 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 5.0.0 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 6.0 EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 7.0 EC 256 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 8.0 EC 256 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 8.1 -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Android 9.0 -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
BingPreview Jan 2015 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 49 / XP SP3 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 69 / Win 7  R EC 256 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 70 / Win 10 -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  FS
Chrome 80 / Win 10  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  FS
Firefox 31.3.0 ESR / Win 7 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 47 / Win 7  R EC 256 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 49 / XP SP3 EC 256 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 62 / Win 7  R EC 256 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 73 / Win 10  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  FS
Googlebot Feb 2018 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
IE 11 / Win 7  R EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
IE 11 / Win 8.1  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
IE 11 / Win Phone 8.1  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
IE 11 / Win Phone 8.1 Update  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
IE 11 / Win 10  R EC 256 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Edge 15 / Win 10  R EC 256 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Edge 16 / Win 10  R EC 256 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Edge 18 / Win 10  R EC 256 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Edge 13 / Win Phone 10  R EC 256 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Java 8u161 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Java 11.0.3 -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
Java 12.0.1 -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.0.1l  R EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.0.2s  R EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.1.0k  R EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.1.1c  R -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Safari 6 / iOS 6.0.1 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 7 / iOS 7.1  R EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 7 / OS X 10.9  R EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 8 / iOS 8.4  R EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 8 / OS X 10.10  R EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 9 / iOS 9  R EC 256 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 9 / OS X 10.11  R EC 256 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 10 / iOS 10  R EC 256 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 10 / OS X 10.12  R EC 256 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 12.1.2 / MacOS 10.14.6 Beta  R -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Safari 12.1.1 / iOS 12.3.1  R -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Apple ATS 9 / iOS 9  R EC 256 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Yahoo Slurp Jan 2015 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
YandexBot Jan 2015 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
# Not simulated clients (Protocol mismatch)
Android 2.3.7   No SNI 2 Protocol mismatch (not simulated)
Android 4.0.4 Protocol mismatch (not simulated)
Android 4.1.1 Protocol mismatch (not simulated)
Android 4.2.2 Protocol mismatch (not simulated)
Android 4.3 Protocol mismatch (not simulated)
Baidu Jan 2015 Protocol mismatch (not simulated)
IE 6 / XP   No FS 1   No SNI 2 Protocol mismatch (not simulated)
IE 7 / Vista Protocol mismatch (not simulated)
IE 8 / XP   No FS 1   No SNI 2 Protocol mismatch (not simulated)
IE 8-10 / Win 7  R Protocol mismatch (not simulated)
IE 10 / Win Phone 8.0 Protocol mismatch (not simulated)
Java 6u45   No SNI 2 Protocol mismatch (not simulated)
Java 7u25 Protocol mismatch (not simulated)
OpenSSL 0.9.8y Protocol mismatch (not simulated)
Safari 5.1.9 / OS X 10.6.8 Protocol mismatch (not simulated)
Safari 6.0.4 / OS X 10.8.4  R Protocol mismatch (not simulated)

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(1) Clients that do not support Forward Secrecy (FS) are excluded when determining support for it.
(2) No support for virtual SSL hosting (SNI). Connects to the default site if the server uses SNI.
(3) Only first connection attempt simulated. Browsers sometimes retry with a lower protocol version.
(R) Denotes a reference browser or client, with which we expect better effective security.
(All) We use defaults, but some platforms do not use their best protocols and features (e.g., Java 6 & 7, older IE).
(All) Certificate trust is not checked in handshake simulation, we only perform TLS handshake.


Protocol Details
Secure Renegotiation Supported
Secure Client-Initiated Renegotiation No
Insecure Client-Initiated Renegotiation No
BEAST attack Mitigated server-side (more info)  
POODLE (SSLv3) No, SSL 3 not supported (more info)
POODLE (TLS) No (more info)
Zombie POODLE No (more info)   TLS 1.2 : 0xc009
GOLDENDOODLE No (more info)   TLS 1.2 : 0xc009
OpenSSL 0-Length No (more info)   TLS 1.2 : 0xc009
Sleeping POODLE No (more info)   TLS 1.2 : 0xc009
Downgrade attack prevention Yes, TLS_FALLBACK_SCSV supported (more info)
SSL/TLS compression No
RC4 No
Heartbeat (extension) No
Heartbleed (vulnerability) No (more info)
Ticketbleed (vulnerability) No (more info)
OpenSSL CCS vuln. (CVE-2014-0224) No (more info)
OpenSSL Padding Oracle vuln.
(CVE-2016-2107)
No (more info)
ROBOT (vulnerability) No (more info)
Forward Secrecy Yes (with most browsers)   ROBUST (more info)
ALPN Yes   h2 h2-fb http/1.1
NPN No
Session resumption (caching) Yes
Session resumption (tickets) No
OCSP stapling No
Strict Transport Security (HSTS) Yes
max-age=15552000; includeSubDomains
HSTS Preloading Not in: Chrome  Edge  Firefox  IE 
Public Key Pinning (HPKP) No (more info)
Public Key Pinning Report-Only No
Public Key Pinning (Static) No (more info)
Long handshake intolerance No
TLS extension intolerance No
TLS version intolerance No
Incorrect SNI alerts No
Uses common DH primes No, DHE suites not supported
DH public server param (Ys) reuse No, DHE suites not supported
ECDH public server param reuse No
Supported Named Groups secp256r1
SSL 2 handshake compatibility No
0-RTT enabled No


HTTP Requests
1 https://edge-secure-shv-01-lhr8.facebook.com/  (HTTP/1.1 301 Moved Permanently)
1
Location https://www.facebook.com/
Strict-Transport-Security max-age=15552000; includeSubDomains
Content-Type text/html; charset="utf-8"
X-FB-Debug CAXMR81l5x0aGSsNYxb7/7v85FUl9EFQJgh4dmXtJEJ7PbRgkU4MssZ2tuGupjVbp3rrsHP/ePWhN2fjWiYXhQ==
Date Wed, 12 Nov 2025 07:26:43 GMT
X-FB-Connection-Quality GOOD; q=0.7, rtt=125, rtx=0, c=10, mss=1348, tbw=3221, tp=-1, tpl=-1, uplat=108, ullat=0
Alt-Svc h3=":443"; ma=86400
Connection close
Content-Length 0


Miscellaneous
Test date Wed, 12 Nov 2025 07:26:31 UTC
Test duration 64.412 seconds
HTTP status code 301
HTTP forwarding https://www.facebook.com
HTTP server signature -
Server hostname edge-secure-shv-01-lhr8.facebook.com


SSL Report v2.4.1