SSL Report: threeplus.three.co.uk (134.213.245.234)
Assessed on:  Mon, 21 Jul 2025 09:33:11 UTC | Clear cache
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Summary
Overall Rating
F
0
20
40
60
80
100
Certificate
 
Protocol Support
 
Key Exchange
 
Cipher Strength
 

Visit our documentation page for more information, configuration guides, and books. Known issues are documented here.
This server supports anonymous (insecure) suites (see below for details). Grade set to F.
This server supports insecure cipher suites (see below for details). Grade set to F.
This server accepts RC4 cipher, but only with older protocols. Grade capped to B.  MORE INFO »
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: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject threeplus.three.co.uk
Fingerprint SHA256: dce86136a8f5e9582b275ab3795be8ae6f1982fc6bd6d81606d16def124797db
Pin SHA256: 0HJH52FNId9SRV4GTER23yP17hiW9bJqjW3qgT20bB0=
Common names threeplus.three.co.uk
Alternative names threeplus.three.co.uk
Serial Number 07adc020902e06ac61a164fb297625f0
Valid from Fri, 25 Oct 2024 00:00:00 UTC
Valid until Fri, 24 Oct 2025 23:59:59 UTC (expires in 3 months and 3 days)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1
AIA: http://cacerts.digicert.eu/DigiCertG2TLSEURSA4096SHA3842022CA1.crt
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL, OCSP
CRL: http://crl.digicert.eu/DigiCertG2TLSEURSA4096SHA3842022CA1.crl
OCSP: http://ocsp.digicert.eu
Revocation status Good (not revoked)
DNS CAA Yes
policy host: three.co.uk
issue: amazon.com flags:0
issue: letsencrypt.org flags:0
issue: digicert.com flags:0
issue: pki.goog flags:0
issue: entrust.net flags:0
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 2 (3434 bytes)
Chain issues None
#2
Subject DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1
Fingerprint SHA256: a4adfc2917bb1451d312371d441acdb686107fbc0b3156d5570e99e1121974fa
Pin SHA256: lXt3ip5lkns+fBxV/S9MSfUx0UUdhBEmhXz5PkrAWGg=
Valid until Sat, 18 Sep 2032 23:59:59 UTC (expires in 7 years and 1 month)
Key RSA 4096 bits (e 65537)
Issuer DigiCert Global Root G2
Signature algorithm SHA384withRSA


Certification Paths
Path #1: Trusted
1 Sent by server threeplus.three.co.uk
Fingerprint SHA256: dce86136a8f5e9582b275ab3795be8ae6f1982fc6bd6d81606d16def124797db
Pin SHA256: 0HJH52FNId9SRV4GTER23yP17hiW9bJqjW3qgT20bB0=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1
Fingerprint SHA256: a4adfc2917bb1451d312371d441acdb686107fbc0b3156d5570e99e1121974fa
Pin SHA256: lXt3ip5lkns+fBxV/S9MSfUx0UUdhBEmhXz5PkrAWGg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 In trust store DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=
RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server threeplus.three.co.uk
Fingerprint SHA256: dce86136a8f5e9582b275ab3795be8ae6f1982fc6bd6d81606d16def124797db
Pin SHA256: 0HJH52FNId9SRV4GTER23yP17hiW9bJqjW3qgT20bB0=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1
Fingerprint SHA256: a4adfc2917bb1451d312371d441acdb686107fbc0b3156d5570e99e1121974fa
Pin SHA256: lXt3ip5lkns+fBxV/S9MSfUx0UUdhBEmhXz5PkrAWGg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 In trust store DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=
RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server threeplus.three.co.uk
Fingerprint SHA256: dce86136a8f5e9582b275ab3795be8ae6f1982fc6bd6d81606d16def124797db
Pin SHA256: 0HJH52FNId9SRV4GTER23yP17hiW9bJqjW3qgT20bB0=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1
Fingerprint SHA256: a4adfc2917bb1451d312371d441acdb686107fbc0b3156d5570e99e1121974fa
Pin SHA256: lXt3ip5lkns+fBxV/S9MSfUx0UUdhBEmhXz5PkrAWGg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 In trust store DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=
RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server threeplus.three.co.uk
Fingerprint SHA256: dce86136a8f5e9582b275ab3795be8ae6f1982fc6bd6d81606d16def124797db
Pin SHA256: 0HJH52FNId9SRV4GTER23yP17hiW9bJqjW3qgT20bB0=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1
Fingerprint SHA256: a4adfc2917bb1451d312371d441acdb686107fbc0b3156d5570e99e1121974fa
Pin SHA256: lXt3ip5lkns+fBxV/S9MSfUx0UUdhBEmhXz5PkrAWGg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 In trust store DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=
RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server threeplus.three.co.uk
Fingerprint SHA256: dce86136a8f5e9582b275ab3795be8ae6f1982fc6bd6d81606d16def124797db
Pin SHA256: 0HJH52FNId9SRV4GTER23yP17hiW9bJqjW3qgT20bB0=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server DigiCert G2 TLS EU RSA4096 SHA384 2022 CA1
Fingerprint SHA256: a4adfc2917bb1451d312371d441acdb686107fbc0b3156d5570e99e1121974fa
Pin SHA256: lXt3ip5lkns+fBxV/S9MSfUx0UUdhBEmhXz5PkrAWGg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 In trust store DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=
RSA 2048 bits (e 65537) / SHA256withRSA

Click here to expand

Configuration
Protocols
TLS 1.3 Yes
TLS 1.2 Yes
TLS 1.1 No
TLS 1.0 No
SSL 3 No
SSL 2 No


Cipher Suites
# TLS 1.3 (suites in server-preferred order)
TLS_AES_128_GCM_SHA256 (0x1301)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 128
TLS_AES_256_GCM_SHA384 (0x1302)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256
TLS_CHACHA20_POLY1305_SHA256 (0x1303)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256
# TLS 1.2 (suites in server-preferred order)
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 128
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca8)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256
TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c)   WEAK 128
TLS_RSA_WITH_AES_128_CCM (0xc09c)   WEAK 128
TLS_RSA_WITH_AES_128_CCM_8 (0xc0a0)   WEAK 128
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_RSA_WITH_AES_128_CBC_SHA256 (0x3c)   WEAK 128
TLS_RSA_WITH_AES_256_GCM_SHA384 (0x9d)   WEAK 256
TLS_RSA_WITH_AES_256_CCM (0xc09d)   WEAK 256
TLS_RSA_WITH_AES_256_CCM_8 (0xc0a1)   WEAK 256
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)   WEAK 256
TLS_RSA_WITH_AES_256_CBC_SHA256 (0x3d)   WEAK 256
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (0x41)   WEAK 128
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (0x84)   WEAK 256
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (0x9e)   DH 2048 bits   FS 128
TLS_DHE_RSA_WITH_AES_128_CCM (0xc09e)   DH 2048 bits   FS 128
TLS_DHE_RSA_WITH_AES_128_CCM_8 (0xc0a2)   DH 2048 bits   FS 128
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (0x33)   DH 2048 bits   FS   WEAK 128
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 (0x67)   DH 2048 bits   FS   WEAK 128
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 (0x9f)   DH 2048 bits   FS 256
TLS_DHE_RSA_WITH_AES_256_CCM (0xc09f)   DH 2048 bits   FS 256
TLS_DHE_RSA_WITH_AES_256_CCM_8 (0xc0a3)   DH 2048 bits   FS 256
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x39)   DH 2048 bits   FS   WEAK 256
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 (0x6b)   DH 2048 bits   FS   WEAK 256
TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA (0x45)   DH 2048 bits   FS   WEAK 128
TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA (0x88)   DH 2048 bits   FS   WEAK 256
TLS_DH_anon_WITH_AES_128_GCM_SHA256 (0xa6)   INSECURE 128
TLS_DH_anon_WITH_AES_256_GCM_SHA384 (0xa7)   INSECURE 256
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (0xc012)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 112
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa)   WEAK 112
TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA (0x16)   DH 2048 bits   FS   WEAK 112
TLS_DHE_RSA_WITH_DES_CBC_SHA (0x15)   DH 2048 bits   FS   INSECURE 56
TLS_RSA_WITH_RC4_128_SHA (0x5)   INSECURE 128
TLS_RSA_WITH_RC4_128_MD5 (0x4)   INSECURE 128


Handshake Simulation
Android 4.4.2 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 5.0.0 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 6.0 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 7.0 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 8.0 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 8.1 -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 9.0 -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
BingPreview Jan 2015 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 49 / XP SP3 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 69 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 70 / Win 10 -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 80 / Win 10  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 31.3.0 ESR / Win 7 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 47 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 49 / XP SP3 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 62 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 73 / Win 10  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
Googlebot Feb 2018 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
IE 11 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
IE 11 / Win 8.1  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
IE 11 / Win Phone 8.1  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
IE 11 / Win Phone 8.1 Update  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
IE 11 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Edge 15 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Edge 16 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Edge 18 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Edge 13 / Win Phone 10  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Java 8u161 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_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 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.0.2s  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.1.0k  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.1.1c  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 6 / iOS 6.0.1 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 7 / iOS 7.1  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 7 / OS X 10.9  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 8 / iOS 8.4  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 8 / OS X 10.10  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 9 / iOS 9  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 9 / OS X 10.11  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 10 / iOS 10  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 10 / OS X 10.12  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 12.1.2 / MacOS 10.14.6 Beta  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 12.1.1 / iOS 12.3.1  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
Apple ATS 9 / iOS 9  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Yahoo Slurp Jan 2015 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
YandexBot Jan 2015 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_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)

Click here to expand

(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 : 0xc013
GOLDENDOODLE No (more info)   TLS 1.2 : 0xc013
OpenSSL 0-Length No (more info)   TLS 1.2 : 0xc013
Sleeping POODLE No (more info)   TLS 1.2 : 0xc013
Downgrade attack prevention Yes, TLS_FALLBACK_SCSV supported (more info)
SSL/TLS compression No
RC4 Yes   INSECURE (more info)
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 No
NPN No
Session resumption (caching) Yes
Session resumption (tickets) No
OCSP stapling No
Strict Transport Security (HSTS) Yes
max-age=31536000; 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
DH public server param (Ys) reuse Yes
ECDH public server param reuse Yes
Supported Named Groups secp256r1, x25519, secp384r1 (server preferred order)
SSL 2 handshake compatibility Yes
0-RTT enabled No


HTTP Requests
1 https://threeplus.three.co.uk/  (HTTP/1.1 200 OK)
1
Date Mon, 21 Jul 2025 09:31:07 GMT
X-Content-Type-Options nosniff
Referrer-Policy same-origin
X-Frame-Options ALLOW-FROM https://3uk-gui-prod.lumata.com/
Permissions-Policy interest-cohort=()
Access-Control-Allow-Headers authorization, content-type, pragma, Cache-Control, If-Modified-Since, deviceBrand, deviceModel, deviceOS, customerId, userId, accept, X-OTP-AUTH
Access-Control-Allow-Methods POST, PUT, GET, OPTIONS, DELETE
Content-Type text/html
Content-Length 2504
Last-Modified Mon, 21 Jul 2025 04:13:16 GMT
ETag "687dbe5c-9c8"
Accept-Ranges bytes
Cache-Control no-cache, no-store, must-revalidate
Expires 0
X-XSS-Protection 1; mode=block
Access-Control-Allow-Origin *
Content-Security-Policy script-src 'self' 'sha256-t0zbihF3YqupKpFlj+vacIwLNc9Wjv6ISTKKMpQ6Ets=' 'unsafe-eval' https://www.gstatic.com https://unpkg.com https://assets.adobedtm.com https://ydn243.3gateway.net/ https://threeplus.three.co.uk/;
Pragma no-cache
Connection close
Strict-Transport-Security max-age=31536000; includeSubDomains


Miscellaneous
Test date Mon, 21 Jul 2025 09:30:58 UTC
Test duration 132.436 seconds
HTTP status code 200
HTTP server signature -
Server hostname -


SSL Report v2.4.1