SSL Report: support.grc4u.com (185.230.212.209)
Assessed on:  Sun, 12 Oct 2025 08:43:05 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
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 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: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject support.grundundgruen.de
Fingerprint SHA256: 3b1f17b5983d745d5d6b108d7c603d774740f513523801a8d9285662943ad4a2
Pin SHA256: i9H4c8oFekeOV9OwuIlPTdKhfrcsoFJYaE3fKCfSPfg=
Common names support.grundundgruen.de
Alternative names aide.myscol.com assistenza.si-tek.it batiment.ymag.fr contractdesk.opustalentsolutions.com cpodesk.nortempo.com desk.basevision.ch desk.dentalhitec.com desk.hardwiredit.com desk.myhq.lu desk.pbw.de dev.netstream.nl faq.mailingwork.de faq.nellykress.com help.bidmio.com help.effect.io help.fastsolutions.be help.goodcitysense.nl help.mairu.digital help.qonekto.de help.resonance.media help.skyhighboutique.co.uk help.smarthorizons.co.uk helpcenter.esportal.com helpdesk-br.sercaeone.com helpdesk.florit-footprint.com infra.ymag.fr internalsupport.energy-solutions.co.uk kissterra.support.automat-it.io ldf.service.netsoltech.co.uk locaux.ymag.fr oryzea.ymag.fr portail.sabesoftwares.com portal.pollmersiemers.de portal.stilride.com relationclient.lesitedelauto.fr service.reha.guide service.roomdelivery.com servicedesk.vantagetech.dev soporte.api-caisoft.es soporte.cerobyte.com soporte.dentalmarket.es soporte.drhouse.es soporte.grupoatd.com soporte.sofistic.com soporte.yacrea.com support.audiofarm.shop support.azzurro.agency support.beyondtech.at support.bristlesandkeys.com support.brtcloud.net support.budgetsms.net support.cadt-solutions.in support.celectas.dk support.childcaremarketing.co.uk support.co-fox.de support.commercebird.com support.conda.at support.fusion-unified.com support.goservices.fr support.grc4u.com support.grundundgruen.de support.hellenictechnologies.com support.houzy.ch support.insulation-more.co.uk support.intercity.ng support.j3advisory.co.uk support.laiatech.com support.lookatmy.ai support.mozztecit.com support.myton.co.uk support.paidtrafficcapital.com support.pdfix.net support.pixable.co support.prosvita.net support.sallnet.com support.theagency.pt support.themenopal.com support.thesocialelement.agency support.uname-it.nl support.yorkshireit.com support.zeentelecom.fr supportdesk.knexgen.com ticket.nomasis.ch vls.service.netsoltech.co.uk www.kleeberg.vip www.mutualite16.dis-connect.fr ypareo.ymag.fr zohodesk.supporto.synergytechnology.it
Serial Number 052d670701485b3809838f0eeea73f128f26
Valid from Sun, 28 Sep 2025 17:48:42 UTC
Valid until Sat, 27 Dec 2025 17:48:41 UTC (expires in 2 months and 15 days)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer R12
AIA: http://r12.i.lencr.org/
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL
CRL: http://r12.c.lencr.org/39.crl
Revocation status Good (not revoked)
DNS CAA Yes
policy host: support.grc4u.com
issue: letsencrypt.org flags:0
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 2 (4641 bytes)
Chain issues None
#2
Subject R12
Fingerprint SHA256: 131fce7784016899a5a00203a9efc80f18ebbd75580717edc1553580930836ec
Pin SHA256: kZwN96eHtZftBWrOZUsd6cA4es80n3NzSk/XtYz2EqQ=
Valid until Fri, 12 Mar 2027 23:59:59 UTC (expires in 1 year and 5 months)
Key RSA 2048 bits (e 65537)
Issuer ISRG Root X1
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Trusted
1 Sent by server support.grundundgruen.de
Fingerprint SHA256: 3b1f17b5983d745d5d6b108d7c603d774740f513523801a8d9285662943ad4a2
Pin SHA256: i9H4c8oFekeOV9OwuIlPTdKhfrcsoFJYaE3fKCfSPfg=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server R12
Fingerprint SHA256: 131fce7784016899a5a00203a9efc80f18ebbd75580717edc1553580930836ec
Pin SHA256: kZwN96eHtZftBWrOZUsd6cA4es80n3NzSk/XtYz2EqQ=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server support.grundundgruen.de
Fingerprint SHA256: 3b1f17b5983d745d5d6b108d7c603d774740f513523801a8d9285662943ad4a2
Pin SHA256: i9H4c8oFekeOV9OwuIlPTdKhfrcsoFJYaE3fKCfSPfg=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server R12
Fingerprint SHA256: 131fce7784016899a5a00203a9efc80f18ebbd75580717edc1553580930836ec
Pin SHA256: kZwN96eHtZftBWrOZUsd6cA4es80n3NzSk/XtYz2EqQ=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server support.grundundgruen.de
Fingerprint SHA256: 3b1f17b5983d745d5d6b108d7c603d774740f513523801a8d9285662943ad4a2
Pin SHA256: i9H4c8oFekeOV9OwuIlPTdKhfrcsoFJYaE3fKCfSPfg=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server R12
Fingerprint SHA256: 131fce7784016899a5a00203a9efc80f18ebbd75580717edc1553580930836ec
Pin SHA256: kZwN96eHtZftBWrOZUsd6cA4es80n3NzSk/XtYz2EqQ=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server support.grundundgruen.de
Fingerprint SHA256: 3b1f17b5983d745d5d6b108d7c603d774740f513523801a8d9285662943ad4a2
Pin SHA256: i9H4c8oFekeOV9OwuIlPTdKhfrcsoFJYaE3fKCfSPfg=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server R12
Fingerprint SHA256: 131fce7784016899a5a00203a9efc80f18ebbd75580717edc1553580930836ec
Pin SHA256: kZwN96eHtZftBWrOZUsd6cA4es80n3NzSk/XtYz2EqQ=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server support.grundundgruen.de
Fingerprint SHA256: 3b1f17b5983d745d5d6b108d7c603d774740f513523801a8d9285662943ad4a2
Pin SHA256: i9H4c8oFekeOV9OwuIlPTdKhfrcsoFJYaE3fKCfSPfg=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server R12
Fingerprint SHA256: 131fce7784016899a5a00203a9efc80f18ebbd75580717edc1553580930836ec
Pin SHA256: kZwN96eHtZftBWrOZUsd6cA4es80n3NzSk/XtYz2EqQ=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA

Click here to expand

Certificate #2: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject people.axium-lumina.co.uk
Fingerprint SHA256: 670a3d0e4dd886f6c7e2123967cb0ad9c757c8fa7c83fd756775ecab70ffa66b
Pin SHA256: HaMzycC48ezAtxI2gW2lfFvNTmtzwdC0yFUHH5PaTNQ=
Common names people.axium-lumina.co.uk
Alternative names connect.doitremote.online connect.lier.tips connect.lierconsulting.com crm.magedia.com hr.keytodata.com hris.kalixa.com mitarbeiter.saascom.de my.whitekeyvillas.com myzoho.kubenet.net people.axens-group.fr people.axium-lumina.co.uk people.kroneit.com people.link4pay.com people.podmanagement.co.uk people.profitroom.com people.riedeberger.digital people.shinetsusilicones.eu people.tipidigitali.it people.uptech.team people.visioncube.pl people.zikodrive.com rh.declic-marketing.ch selfhelp.assurex.co zoho.lindera.de   MISMATCH
Serial Number 050c0633ef8b7063bcfe6e28b4b20e426e54
Valid from Sun, 31 Aug 2025 22:37:50 UTC
Valid until Sat, 29 Nov 2025 22:37:49 UTC (expires in 1 month and 17 days)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer R12
AIA: http://r12.i.lencr.org/
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL
CRL: http://r12.c.lencr.org/85.crl
Revocation status Good (not revoked)
Trusted No   NOT TRUSTED
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 2 (3109 bytes)
Chain issues None
#2
Subject R12
Fingerprint SHA256: 131fce7784016899a5a00203a9efc80f18ebbd75580717edc1553580930836ec
Pin SHA256: kZwN96eHtZftBWrOZUsd6cA4es80n3NzSk/XtYz2EqQ=
Valid until Fri, 12 Mar 2027 23:59:59 UTC (expires in 1 year and 5 months)
Key RSA 2048 bits (e 65537)
Issuer ISRG Root X1
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: 670a3d0e4dd886f6c7e2123967cb0ad9c757c8fa7c83fd756775ecab70ffa66b])
1 Sent by server people.axium-lumina.co.uk
Fingerprint SHA256: 670a3d0e4dd886f6c7e2123967cb0ad9c757c8fa7c83fd756775ecab70ffa66b
Pin SHA256: HaMzycC48ezAtxI2gW2lfFvNTmtzwdC0yFUHH5PaTNQ=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server R12
Fingerprint SHA256: 131fce7784016899a5a00203a9efc80f18ebbd75580717edc1553580930836ec
Pin SHA256: kZwN96eHtZftBWrOZUsd6cA4es80n3NzSk/XtYz2EqQ=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: 670a3d0e4dd886f6c7e2123967cb0ad9c757c8fa7c83fd756775ecab70ffa66b])
1 Sent by server people.axium-lumina.co.uk
Fingerprint SHA256: 670a3d0e4dd886f6c7e2123967cb0ad9c757c8fa7c83fd756775ecab70ffa66b
Pin SHA256: HaMzycC48ezAtxI2gW2lfFvNTmtzwdC0yFUHH5PaTNQ=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server R12
Fingerprint SHA256: 131fce7784016899a5a00203a9efc80f18ebbd75580717edc1553580930836ec
Pin SHA256: kZwN96eHtZftBWrOZUsd6cA4es80n3NzSk/XtYz2EqQ=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: 670a3d0e4dd886f6c7e2123967cb0ad9c757c8fa7c83fd756775ecab70ffa66b])
1 Sent by server people.axium-lumina.co.uk
Fingerprint SHA256: 670a3d0e4dd886f6c7e2123967cb0ad9c757c8fa7c83fd756775ecab70ffa66b
Pin SHA256: HaMzycC48ezAtxI2gW2lfFvNTmtzwdC0yFUHH5PaTNQ=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server R12
Fingerprint SHA256: 131fce7784016899a5a00203a9efc80f18ebbd75580717edc1553580930836ec
Pin SHA256: kZwN96eHtZftBWrOZUsd6cA4es80n3NzSk/XtYz2EqQ=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: 670a3d0e4dd886f6c7e2123967cb0ad9c757c8fa7c83fd756775ecab70ffa66b])
1 Sent by server people.axium-lumina.co.uk
Fingerprint SHA256: 670a3d0e4dd886f6c7e2123967cb0ad9c757c8fa7c83fd756775ecab70ffa66b
Pin SHA256: HaMzycC48ezAtxI2gW2lfFvNTmtzwdC0yFUHH5PaTNQ=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server R12
Fingerprint SHA256: 131fce7784016899a5a00203a9efc80f18ebbd75580717edc1553580930836ec
Pin SHA256: kZwN96eHtZftBWrOZUsd6cA4es80n3NzSk/XtYz2EqQ=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: 670a3d0e4dd886f6c7e2123967cb0ad9c757c8fa7c83fd756775ecab70ffa66b])
1 Sent by server people.axium-lumina.co.uk
Fingerprint SHA256: 670a3d0e4dd886f6c7e2123967cb0ad9c757c8fa7c83fd756775ecab70ffa66b
Pin SHA256: HaMzycC48ezAtxI2gW2lfFvNTmtzwdC0yFUHH5PaTNQ=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server R12
Fingerprint SHA256: 131fce7784016899a5a00203a9efc80f18ebbd75580717edc1553580930836ec
Pin SHA256: kZwN96eHtZftBWrOZUsd6cA4es80n3NzSk/XtYz2EqQ=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA

Click here to expand

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
(*) 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_AES_256_GCM_SHA384 (0x1302)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
TLS_CHACHA20_POLY1305_SHA256 (0x1303)   ECDH x25519 (eq. 3072 bits RSA)   FS 256P
# TLS 1.2 (suites in server-preferred order)
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)   ECDH x25519 (eq. 3072 bits RSA)   FS 128
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca8)   ECDH x25519 (eq. 3072 bits RSA)   FS 256P
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH x25519 (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 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 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 7.0 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Android 8.0 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256   ECDH x25519  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 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 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 69 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  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 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 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 49 / XP SP3 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 62 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Firefox 73 / Win 10  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  FS
Googlebot Feb 2018 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
IE 11 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
IE 11 / Win 8.1  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
IE 11 / Win Phone 8.1  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
IE 11 / Win Phone 8.1 Update  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
IE 11 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Edge 15 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Edge 16 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Edge 18 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Edge 13 / Win Phone 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   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 x25519  FS
OpenSSL 1.1.1c  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  FS
Safari 6 / iOS 6.0.1 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
Safari 7 / iOS 7.1  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
Safari 7 / OS X 10.9  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
Safari 8 / iOS 8.4  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
Safari 8 / OS X 10.10  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
Safari 9 / iOS 9  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 9 / OS X 10.11  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 10 / iOS 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 10 / OS X 10.12  R RSA 2048 (SHA256)   TLS 1.2 > h2   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_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 RSA 2048 (SHA256)   TLS 1.2 > h2   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 : 0xc027
GOLDENDOODLE No (more info)   TLS 1.2 : 0xc027
OpenSSL 0-Length No (more info)   TLS 1.2 : 0xc027
Sleeping POODLE No (more info)   TLS 1.2 : 0xc027
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 http/1.1
NPN No
Session resumption (caching) Yes
Session resumption (tickets) Yes
OCSP stapling No
Strict Transport Security (HSTS) Yes
max-age=63072000;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 x25519, secp256r1 (server preferred order)
SSL 2 handshake compatibility No
0-RTT enabled No


HTTP Requests
1 https://support.grc4u.com/  (HTTP/1.1 301 )
1
Server ZGS
Date Sun, 12 Oct 2025 08:41:59 GMT
Content-Length 0
Connection close
Set-Cookie zalb_4a1e652dc2=dcde4f83b59fef71d0f14a7e865d039a; Path=/; Secure; HttpOnly
Referrer-Policy strict-origin-when-cross-origin
Cache-Control private,no-cache,no-store,max-age=0,must-revalidate
X-Content-Type-Options nosniff
Set-Cookie crmcsr=0d90d34f-3f58-4b9d-ab49-7157bc6a79fa;path=/;SameSite=None;Secure;priority=high
Pragma no-cache
Expires Thu, 01 Jan 1970 00:00:00 GMT
X-Frame-Options SAMEORIGIN
Set-Cookie JSESSIONID=BD33A05AD5523373D053F399FADF1F0D; Path=/; Secure; HttpOnly
Content-Security-Policy default-src 'self' https://static.zohocdn.com ;script-src 'none' ;style-src 'self' https://static.zohocdn.com ;img-src 'self' https://static.zohocdn.com ;object-src 'none' ;base-uri 'self' ;form-action 'none' ;report-uri https://logsapi.zoho.eu/csplog?service=support;report-to https://logsapi.zoho.eu/csplog?service=support
Permissions-Policy accelerometer=(), ambient-light-sensor=(), bluetooth=(), compute-pressure=(), document-domain=(), encrypted-media=(), gamepad=(), gyroscope=(), hid=(), magnetometer=(), midi=(), screen-wake-lock=(), serial=(), speaker-selection=(), usb=(), xr-spatial-tracking=()
Location https://support.grc4u.com/portal/en/newticket
Strict-Transport-Security max-age=63072000;includeSubDomains
2 https://support.grc4u.com/portal/en/newticket  (HTTP/1.1 200 )
2
Server ZGS
Date Sun, 12 Oct 2025 08:42:00 GMT
Content-Type text/html;charset=UTF-8
Transfer-Encoding chunked
Connection close
Set-Cookie zalb_81bd8b294f=0cfa729dacc06f7a6496cc5992e6c319; Path=/; Secure; HttpOnly
Referrer-Policy no-referrer-when-downgrade
X-Content-Type-Options nosniff
Cache-Control private,no-cache,no-store,max-age=0,must-revalidate
Pragma no-cache
Expires Thu, 01 Jan 1970 00:00:00 GMT
Set-Cookie JSESSIONID=BBD11409FD288633411D110F9D4730A4; Path=/; Secure; HttpOnly
vary accept-encoding
Strict-Transport-Security max-age=63072000;includeSubDomains


Miscellaneous
Test date Sun, 12 Oct 2025 08:41:47 UTC
Test duration 77.642 seconds
HTTP status code 200
HTTP server signature ZGS
Server hostname -


SSL Report v2.4.1