SSL Server Test: mail.g7edu.vn (Powered by Qualys SSL Labs)

SSL Report: mail.g7edu.vn (117.122.125.107)

Assessed on: Sun, 08 Jun 2025 06:33:03 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

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's certificate is not trusted, see below for details.

This server is vulnerable to the Return Of Bleichenbacher's Oracle Threat (ROBOT) vulnerability. Grade set to F. MORE INFO »

This server supports weak Diffie-Hellman (DH) key exchange parameters. Grade capped to B. MORE INFO »

This server does not support Forward Secrecy with the reference browsers. Grade capped to B. MORE INFO »

This server's certificate chain is incomplete. Grade capped to B.

This server supports TLS 1.0 and TLS 1.1. Grade capped to B. MORE INFO »

This server does not support TLS 1.3. MORE INFO »

HTTP Strict Transport Security (HSTS) with long duration deployed on this server. MORE INFO »

Certificate #1: RSA 2048 bits (SHA256withRSA)

Server Key and Certificate #1
Subject	*.vnnic.vn Fingerprint SHA256: 26fe743e123831616b8179fbdf912f35b6856f1e4126ebb68668c79646a1fab6 Pin SHA256: +F6UNAmwDGRtaUq9DNeymNYRNAOmBqnuZXfYmxaWtS0=
Common names	*.vnnic.vn
Alternative names	.vnnic.vn thongbaotenmien.vn tenmien.vn vnix.vn nguoibanso.vn xn--ngibns-4zb8830domavd.vn tracuutenmien.vn tracuutenmien.gov.vn guongmatso.tenmien.vn thuonghieuso.tenmien.vn vnnic.vn hiendienonline.tenmien.vn MISMATCH*
Serial Number	074231fc9d8a16aefadf2dd8a480665f
Valid from	Wed, 08 Jan 2025 00:00:00 UTC
Valid until	Wed, 28 Jan 2026 23:59:59 UTC (expires in 7 months and 20 days)
Key	RSA 2048 bits (e 65537)
Weak key (Debian)	No
Issuer	GeoTrust TLS RSA CA G1 AIA: http://cacerts.geotrust.com/GeoTrustTLSRSACAG1.crt
Signature algorithm	SHA256withRSA
Extended Validation	No
Certificate Transparency	Yes (certificate)
OCSP Must Staple	No
Revocation information	CRL, OCSP CRL: http://cdp.geotrust.com/GeoTrustTLSRSACAG1.crl OCSP: http://status.geotrust.com
Revocation status	Good (not revoked)
DNS CAA	No (more info)
Trusted	No NOT TRUSTED (Why?) Mozilla Apple Android Java Windows

Additional Certificates (if supplied)
Certificates provided	1 (1888 bytes)
Chain issues	Incomplete

Certification Paths


Path #1: Not trusted (invalid certificate [Fingerprint SHA256: 26fe743e123831616b8179fbdf912f35b6856f1e4126ebb68668c79646a1fab6])
1	Sent by server	*.vnnic.vn Fingerprint SHA256: 26fe743e123831616b8179fbdf912f35b6856f1e4126ebb68668c79646a1fab6 Pin SHA256: +F6UNAmwDGRtaUq9DNeymNYRNAOmBqnuZXfYmxaWtS0= RSA 2048 bits (e 65537) / SHA256withRSA
2	Extra download	GeoTrust TLS RSA CA G1 Fingerprint SHA256: c06e307f7cfc1d32fa72a4c033c87b90019af216f0775d64978a2eca6c8a230e Pin SHA256: SDG5orEv8iX6MNenIAxa8nQFNpROB/6+llsZdXHZNqs= RSA 2048 bits (e 65537) / SHA256withRSA
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: Not trusted (invalid certificate [Fingerprint SHA256: 26fe743e123831616b8179fbdf912f35b6856f1e4126ebb68668c79646a1fab6])
1	Sent by server	*.vnnic.vn Fingerprint SHA256: 26fe743e123831616b8179fbdf912f35b6856f1e4126ebb68668c79646a1fab6 Pin SHA256: +F6UNAmwDGRtaUq9DNeymNYRNAOmBqnuZXfYmxaWtS0= RSA 2048 bits (e 65537) / SHA256withRSA
2	Extra download	GeoTrust TLS RSA CA G1 Fingerprint SHA256: c06e307f7cfc1d32fa72a4c033c87b90019af216f0775d64978a2eca6c8a230e Pin SHA256: SDG5orEv8iX6MNenIAxa8nQFNpROB/6+llsZdXHZNqs= RSA 2048 bits (e 65537) / SHA256withRSA
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: Not trusted (invalid certificate [Fingerprint SHA256: 26fe743e123831616b8179fbdf912f35b6856f1e4126ebb68668c79646a1fab6])
1	Sent by server	*.vnnic.vn Fingerprint SHA256: 26fe743e123831616b8179fbdf912f35b6856f1e4126ebb68668c79646a1fab6 Pin SHA256: +F6UNAmwDGRtaUq9DNeymNYRNAOmBqnuZXfYmxaWtS0= RSA 2048 bits (e 65537) / SHA256withRSA
2	Extra download	GeoTrust TLS RSA CA G1 Fingerprint SHA256: c06e307f7cfc1d32fa72a4c033c87b90019af216f0775d64978a2eca6c8a230e Pin SHA256: SDG5orEv8iX6MNenIAxa8nQFNpROB/6+llsZdXHZNqs= RSA 2048 bits (e 65537) / SHA256withRSA
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: Not trusted (invalid certificate [Fingerprint SHA256: 26fe743e123831616b8179fbdf912f35b6856f1e4126ebb68668c79646a1fab6])
1	Sent by server	*.vnnic.vn Fingerprint SHA256: 26fe743e123831616b8179fbdf912f35b6856f1e4126ebb68668c79646a1fab6 Pin SHA256: +F6UNAmwDGRtaUq9DNeymNYRNAOmBqnuZXfYmxaWtS0= RSA 2048 bits (e 65537) / SHA256withRSA
2	Extra download	GeoTrust TLS RSA CA G1 Fingerprint SHA256: c06e307f7cfc1d32fa72a4c033c87b90019af216f0775d64978a2eca6c8a230e Pin SHA256: SDG5orEv8iX6MNenIAxa8nQFNpROB/6+llsZdXHZNqs= RSA 2048 bits (e 65537) / SHA256withRSA
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: Not trusted (invalid certificate [Fingerprint SHA256: 26fe743e123831616b8179fbdf912f35b6856f1e4126ebb68668c79646a1fab6])
1	Sent by server	*.vnnic.vn Fingerprint SHA256: 26fe743e123831616b8179fbdf912f35b6856f1e4126ebb68668c79646a1fab6 Pin SHA256: +F6UNAmwDGRtaUq9DNeymNYRNAOmBqnuZXfYmxaWtS0= RSA 2048 bits (e 65537) / SHA256withRSA
2	Extra download	GeoTrust TLS RSA CA G1 Fingerprint SHA256: c06e307f7cfc1d32fa72a4c033c87b90019af216f0775d64978a2eca6c8a230e Pin SHA256: SDG5orEv8iX6MNenIAxa8nQFNpROB/6+llsZdXHZNqs= RSA 2048 bits (e 65537) / SHA256withRSA
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	No
TLS 1.2	Yes
TLS 1.1	Yes
TLS 1.0	Yes
SSL 3	No
SSL 2	No

Cipher Suites
# TLS 1.2 (suites in server-preferred order)
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 (`0x9f`) DH 1024 bits FS WEAK	256
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (`0x9e`) DH 1024 bits FS WEAK	128
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 (`0x6b`) DH 1024 bits FS WEAK	256
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (`0x39`) DH 1024 bits FS WEAK	256
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 (`0x67`) DH 1024 bits FS WEAK	128
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (`0x33`) DH 1024 bits FS WEAK	128
TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA (`0x16`) DH 1024 bits FS WEAK	112
TLS_RSA_WITH_AES_256_GCM_SHA384 (`0x9d`) WEAK	256
TLS_RSA_WITH_AES_128_GCM_SHA256 (`0x9c`) WEAK	128
TLS_RSA_WITH_AES_256_CBC_SHA256 (`0x3d`) WEAK	256
TLS_RSA_WITH_AES_256_CBC_SHA (`0x35`) WEAK	256
TLS_RSA_WITH_AES_128_CBC_SHA256 (`0x3c`) WEAK	128
TLS_RSA_WITH_AES_128_CBC_SHA (`0x2f`) WEAK	128
TLS_RSA_WITH_3DES_EDE_CBC_SHA (`0xa`) WEAK	112
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (`0xc030`) ECDH secp384r1 (eq. 7680 bits RSA) FS	256
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (`0xc02f`) ECDH secp384r1 (eq. 7680 bits RSA) FS	128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (`0xc028`) ECDH secp384r1 (eq. 7680 bits RSA) FS WEAK	256
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (`0xc014`) ECDH secp384r1 (eq. 7680 bits RSA) FS WEAK	256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (`0xc027`) ECDH secp384r1 (eq. 7680 bits RSA) FS WEAK	128
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (`0xc013`) ECDH secp384r1 (eq. 7680 bits RSA) FS WEAK	128
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (`0xc012`) ECDH secp384r1 (eq. 7680 bits RSA) FS WEAK	112
# TLS 1.1 (suites in server-preferred order)
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (`0x39`) DH 1024 bits FS WEAK	256
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (`0x33`) DH 1024 bits FS WEAK	128
TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA (`0x16`) DH 1024 bits FS WEAK	112
TLS_RSA_WITH_AES_256_CBC_SHA (`0x35`) WEAK	256
TLS_RSA_WITH_AES_128_CBC_SHA (`0x2f`) WEAK	128
TLS_RSA_WITH_3DES_EDE_CBC_SHA (`0xa`) WEAK	112
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (`0xc014`) ECDH secp384r1 (eq. 7680 bits RSA) FS WEAK	256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (`0xc013`) ECDH secp384r1 (eq. 7680 bits RSA) FS WEAK	128
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (`0xc012`) ECDH secp384r1 (eq. 7680 bits RSA) FS WEAK	112
# TLS 1.0 (suites in server-preferred order)
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (`0x39`) DH 1024 bits FS WEAK	256
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (`0x33`) DH 1024 bits FS WEAK	128
TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA (`0x16`) DH 1024 bits FS WEAK	112
TLS_RSA_WITH_AES_256_CBC_SHA (`0x35`) WEAK	256
TLS_RSA_WITH_AES_128_CBC_SHA (`0x2f`) WEAK	128
TLS_RSA_WITH_3DES_EDE_CBC_SHA (`0xa`) WEAK	112
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (`0xc014`) ECDH secp384r1 (eq. 7680 bits RSA) FS WEAK	256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (`0xc013`) ECDH secp384r1 (eq. 7680 bits RSA) FS WEAK	128
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (`0xc012`) ECDH secp384r1 (eq. 7680 bits RSA) FS WEAK	112

Handshake Simulation
Android 2.3.7 No SNI ²	RSA 2048 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_128_CBC_SHA DH 1024 FS
Android 4.0.4	RSA 2048 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Android 4.1.1	RSA 2048 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Android 4.2.2	RSA 2048 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Android 4.3	RSA 2048 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Android 4.4.2	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 1024 FS
Android 5.0.0	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 DH 1024 FS
Android 6.0	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 DH 1024 FS
Android 7.0	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_GCM_SHA384 No FS
Android 8.0	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_GCM_SHA384 No FS
Android 8.1	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_GCM_SHA384 No FS
Android 9.0	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_GCM_SHA384 No FS
Baidu Jan 2015	RSA 2048 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
BingPreview Jan 2015	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 1024 FS
Chrome 49 / XP SP3	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_128_GCM_SHA256 No FS
Chrome 69 / Win 7 R	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_GCM_SHA384 No FS
Chrome 70 / Win 10	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_GCM_SHA384 No FS
Chrome 80 / Win 10 R	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_GCM_SHA384 No FS
Firefox 31.3.0 ESR / Win 7	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Firefox 47 / Win 7 R	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Firefox 49 / XP SP3	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Firefox 62 / Win 7 R	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_CBC_SHA No FS
Firefox 73 / Win 10 R	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Googlebot Feb 2018	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_GCM_SHA384 No FS
IE 7 / Vista	RSA 2048 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
IE 8 / XP No FS ¹ No SNI ²	RSA 2048 (SHA256)	TLS 1.0	TLS_RSA_WITH_3DES_EDE_CBC_SHA
IE 8-10 / Win 7 R	RSA 2048 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
IE 11 / Win 7 R	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 1024 FS
IE 11 / Win 8.1 R	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 1024 FS
IE 10 / Win Phone 8.0	RSA 2048 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
IE 11 / Win Phone 8.1 R	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_CBC_SHA256 No FS
IE 11 / Win Phone 8.1 Update R	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 1024 FS
IE 11 / Win 10 R	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 1024 FS
Edge 15 / Win 10 R	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_GCM_SHA384 No FS
Edge 16 / Win 10 R	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_GCM_SHA384 No FS
Edge 18 / Win 10 R	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_GCM_SHA384 No FS
Edge 13 / Win Phone 10 R	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 1024 FS
Java 6u45 No SNI ²	RSA 2048 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_128_CBC_SHA DH 1024 FS
Java 7u25	RSA 2048 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_128_CBC_SHA DH 1024 FS
Java 8u161	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 1024 FS
Java 11.0.3	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 1024 FS
Java 12.0.1	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 1024 FS
OpenSSL 0.9.8y	RSA 2048 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
OpenSSL 1.0.1l R	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 1024 FS
OpenSSL 1.0.2s R	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 1024 FS
OpenSSL 1.1.0k R	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 1024 FS
OpenSSL 1.1.1c R	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 1024 FS
Safari 5.1.9 / OS X 10.6.8	RSA 2048 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Safari 6 / iOS 6.0.1	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 DH 1024 FS
Safari 6.0.4 / OS X 10.8.4 R	RSA 2048 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Safari 7 / iOS 7.1 R	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 DH 1024 FS
Safari 7 / OS X 10.9 R	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 DH 1024 FS
Safari 8 / iOS 8.4 R	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 DH 1024 FS
Safari 8 / OS X 10.10 R	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 DH 1024 FS
Safari 9 / iOS 9 R	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_GCM_SHA384 No FS
Safari 9 / OS X 10.11 R	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_GCM_SHA384 No FS
Safari 10 / iOS 10 R	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_GCM_SHA384 No FS
Safari 10 / OS X 10.12 R	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_GCM_SHA384 No FS
Safari 12.1.2 / MacOS 10.14.6 Beta R	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_GCM_SHA384 No FS
Safari 12.1.1 / iOS 12.3.1 R	RSA 2048 (SHA256)	TLS 1.2	TLS_RSA_WITH_AES_256_GCM_SHA384 No FS
Apple ATS 9 / iOS 9 R	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Yahoo Slurp Jan 2015	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 1024 FS
YandexBot Jan 2015	RSA 2048 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 1024 FS
# Not simulated clients (Protocol mismatch)
IE 6 / XP No FS ¹ No SNI ²	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	Yes
Insecure Client-Initiated Renegotiation	No
BEAST attack	Not mitigated server-side (more info) TLS 1.0: `0x39`
POODLE (SSLv3)	No, SSL 3 not supported (more info)
POODLE (TLS)	No (more info)
Zombie POODLE	No (more info) TLS 1.2 : `0x0035`
GOLDENDOODLE	No (more info) TLS 1.2 : `0x0035`
OpenSSL 0-Length	No (more info) TLS 1.2 : `0x0035`
Sleeping POODLE	No (more info) TLS 1.2 : `0x0035`
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)	Yes EXPLOITABLE (more info)
Forward Secrecy	Weak key exchange WEAK
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	No
Supported Named Groups	secp256r1, secp384r1 (Server has no preference)
SSL 2 handshake compatibility	Yes

HTTP Requests

1 https://mail.g7edu.vn/ (HTTP/1.1 200 OK)
1
	Cache-Control	no-cache, no-store, max-age=0, must-revalidate
	Connection	close
	Date	Sun, 08 Jun 2025 06:29:39 GMT
	Pragma	no-cache
	Content-Type	text/html;charset=UTF-8
	Expires	0
	X-FRAME-OPTIONS	SAMEORIGIN
	Strict-Transport-Security	max-age=31536000 ; includeSubDomains
	X-Content-Type-Options	nosniff
	Set-Cookie	XSRF-TOKEN=ffdd9f24-3c80-428d-a180-3e113b918a32; path=/; secure; HttpOnly
	Content-Language	vi-VN
	X-XSS-Protection	1; mode=block
	Vary	Origin
	Vary	Access-Control-Request-Method
	Vary	Access-Control-Request-Headers, Accept-Encoding
	X-Frame-Options	DENY
	Set-Cookie	BIGipServerLANDINGPAGE.app~LANDINGPAGE_pool=rd1o00000000000000000000ffff757a7f2bo7788; path=/; Httponly; Secure

Miscellaneous
Test date	Sun, 08 Jun 2025 06:29:19 UTC
Test duration	224.620 seconds
HTTP status code	200
HTTP server signature	-
Server hostname	speakers.vnnic.vn

Why is my certificate not trusted?

There are many reasons why a certificate may not be trusted. The exact problem is indicated on the report card in bright red. The problems fall into three categories:

Invalid certificate
Invalid configuration
Unknown Certificate Authority

1. Invalid certificate

A certificate is invalid if:

It is used before its activation date
It is used after its expiry date
Certificate hostnames don't match the site hostname
It has been revoked
It has insecure signature
It has been blacklisted

2. Invalid configuration

In some cases, the certificate chain does not contain all the necessary certificates to connect the web server certificate to one of the root certificates in our trust store. Less commonly, one of the certificates in the chain (other than the web server certificate) will have expired, and that invalidates the entire chain.

3. Unknown Certificate Authority

In order for trust to be established, we must have the root certificate of the signing Certificate Authority in our trust store. SSL Labs does not maintain its own trust store; instead we use the store maintained by Mozilla.

If we mark a web site as not trusted, that means that the average web user's browser will not trust it either. For certain special groups of users, such web sites can still be secure. For example, if you can securely verify that a self-signed web site is operated by a person you trust, then you can trust that self-signed web site too. Or, if you work for an organisation that manages its own trust, and you have their own root certificate already embedded in your browser. Such special cases do not work for the general public, however, and this is what we indicate on our report card.

4. Interoperability issues

In some rare cases trust cannot be established because of interoperability issues between our code and the code or configuration running on the server. We manually review such cases, but if you encounter such an issue please feel free to contact us. Such problems are very difficult to troubleshoot and you may be able to provide us with information that might help us determine the root cause.

SSL Report v2.4.0

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