SSL Server Test: mail.pubnix.net (Powered by Qualys SSL Labs)

SSL Report: mail.pubnix.net (192.172.250.1)

Assessed on: Thu, 14 Aug 2025 03:24:42 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This server supports SSL 2, which is obsolete and insecure, and can be used against TLS (DROWN attack). Grade set to F. MORE INFO »

This server supports insecure cipher suites (see below for details). Grade set to F.

This server supports insecure Diffie-Hellman (DH) key exchange parameters (Logjam). Grade set to F. MORE INFO »

This server supports 512-bit export suites and might be vulnerable to the FREAK attack. Grade set to F. MORE INFO »

This server is vulnerable to the POODLE attack. If possible, disable SSL 3 to mitigate. Grade capped to C. MORE INFO »

This server is vulnerable to MITM attacks because it supports insecure renegotiation. Grade set to F.

The server supports only older protocols, but not the current best TLS 1.2 or TLS 1.3. Grade capped to C. MORE INFO »

This server accepts RC4 cipher, but only with older protocols. Grade capped to B. MORE INFO »

There is no support for secure renegotiation. MORE INFO »

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

This server does not support Authenticated encryption (AEAD) cipher suites. Grade capped to B. MORE INFO »

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

This server does not support TLS 1.3. MORE INFO »

DNS Certification Authority Authorization (CAA) Policy found for this domain. MORE INFO »

Certificate #1: RSA 4096 bits (SHA256withRSA)

Server Key and Certificate #1
Subject	mail.pubnix.net Fingerprint SHA256: 83b39e12b7ace0423be0c058467af55e3a233c84caaa6c27ec491be837ae5e78 Pin SHA256: kTtmDgGkofkhn6Ik3ATA0nusbYKj4Qqmhc8cQuR6ZFA=
Common names	mail.pubnix.net
Alternative names	mail.pubnix.net
Serial Number	66
Valid from	Fri, 27 Dec 2019 23:40:22 UTC
Valid until	Tue, 25 Sep 2029 23:40:22 UTC (expires in 4 years and 1 month)
Key	RSA 4096 bits (e 65537)
Weak key (Debian)	No
Issuer	PubNIX CA
Signature algorithm	SHA256withRSA
Extended Validation	No
Certificate Transparency	No
OCSP Must Staple	No
Revocation information	None
DNS CAA	Yes policy host: pubnix.net issuewild: comodoca.com flags:0 issuewild: letsencrypt.org flags:0 issue: comodoca.com flags:0 issue: letsencrypt.org flags:0
Trusted	No NOT TRUSTED (Why?) Mozilla Apple Android Java Windows

Additional Certificates (if supplied)
Certificates provided	2 (2214 bytes)
Chain issues	Contains anchor
#2
Subject	PubNIX CA Not in trust store Fingerprint SHA256: aa58ceae9c2c7bd50b769b41c2b1578041690ca8efadea31f4cb181d813766c5 Pin SHA256: ODt/Dlp6KPKOZcHMilJDiI8W/g3SAuzl9rlYrIoDHPA=
Valid until	Tue, 25 Sep 2029 22:29:27 UTC (expires in 4 years and 1 month)
Key	RSA 1024 bits (e 65537) WEAK
Issuer	PubNIX CA Self-signed
Signature algorithm	SHA256withRSA

Certification Paths


Path #1: Not trusted (path does not chain to a trusted anchor)
1	Sent by server	mail.pubnix.net Fingerprint SHA256: 83b39e12b7ace0423be0c058467af55e3a233c84caaa6c27ec491be837ae5e78 Pin SHA256: kTtmDgGkofkhn6Ik3ATA0nusbYKj4Qqmhc8cQuR6ZFA= RSA 4096 bits (e 65537) / SHA256withRSA
2	Sent by server Not in trust store	PubNIX CA Self-signed Fingerprint SHA256: aa58ceae9c2c7bd50b769b41c2b1578041690ca8efadea31f4cb181d813766c5 Pin SHA256: ODt/Dlp6KPKOZcHMilJDiI8W/g3SAuzl9rlYrIoDHPA= RSA 1024 bits (e 65537) / SHA256withRSA WEAK KEY
Path #1: Not trusted (path does not chain to a trusted anchor)
1	Sent by server	mail.pubnix.net Fingerprint SHA256: 83b39e12b7ace0423be0c058467af55e3a233c84caaa6c27ec491be837ae5e78 Pin SHA256: kTtmDgGkofkhn6Ik3ATA0nusbYKj4Qqmhc8cQuR6ZFA= RSA 4096 bits (e 65537) / SHA256withRSA
2	Sent by server Not in trust store	PubNIX CA Self-signed Fingerprint SHA256: aa58ceae9c2c7bd50b769b41c2b1578041690ca8efadea31f4cb181d813766c5 Pin SHA256: ODt/Dlp6KPKOZcHMilJDiI8W/g3SAuzl9rlYrIoDHPA= RSA 1024 bits (e 65537) / SHA256withRSA WEAK KEY
Path #1: Not trusted (path does not chain to a trusted anchor)
1	Sent by server	mail.pubnix.net Fingerprint SHA256: 83b39e12b7ace0423be0c058467af55e3a233c84caaa6c27ec491be837ae5e78 Pin SHA256: kTtmDgGkofkhn6Ik3ATA0nusbYKj4Qqmhc8cQuR6ZFA= RSA 4096 bits (e 65537) / SHA256withRSA
2	Sent by server Not in trust store	PubNIX CA Self-signed Fingerprint SHA256: aa58ceae9c2c7bd50b769b41c2b1578041690ca8efadea31f4cb181d813766c5 Pin SHA256: ODt/Dlp6KPKOZcHMilJDiI8W/g3SAuzl9rlYrIoDHPA= RSA 1024 bits (e 65537) / SHA256withRSA WEAK KEY
Path #1: Not trusted (path does not chain to a trusted anchor)
1	Sent by server	mail.pubnix.net Fingerprint SHA256: 83b39e12b7ace0423be0c058467af55e3a233c84caaa6c27ec491be837ae5e78 Pin SHA256: kTtmDgGkofkhn6Ik3ATA0nusbYKj4Qqmhc8cQuR6ZFA= RSA 4096 bits (e 65537) / SHA256withRSA
2	Sent by server Not in trust store	PubNIX CA Self-signed Fingerprint SHA256: aa58ceae9c2c7bd50b769b41c2b1578041690ca8efadea31f4cb181d813766c5 Pin SHA256: ODt/Dlp6KPKOZcHMilJDiI8W/g3SAuzl9rlYrIoDHPA= RSA 1024 bits (e 65537) / SHA256withRSA WEAK KEY
Path #1: Not trusted (path does not chain to a trusted anchor)
1	Sent by server	mail.pubnix.net Fingerprint SHA256: 83b39e12b7ace0423be0c058467af55e3a233c84caaa6c27ec491be837ae5e78 Pin SHA256: kTtmDgGkofkhn6Ik3ATA0nusbYKj4Qqmhc8cQuR6ZFA= RSA 4096 bits (e 65537) / SHA256withRSA
2	Sent by server Not in trust store	PubNIX CA Self-signed Fingerprint SHA256: aa58ceae9c2c7bd50b769b41c2b1578041690ca8efadea31f4cb181d813766c5 Pin SHA256: ODt/Dlp6KPKOZcHMilJDiI8W/g3SAuzl9rlYrIoDHPA= RSA 1024 bits (e 65537) / SHA256withRSA WEAK KEY

Click here to expand

Configuration

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

Cipher Suites
# TLS 1.0 (server has no preference)
TLS_RSA_EXPORT_WITH_RC4_40_MD5 (`0x3`) INSECURE	40
TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5 (`0x6`) INSECURE	40
TLS_RSA_EXPORT_WITH_DES40_CBC_SHA (`0x8`) INSECURE	40
TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA (`0x14`) DH 512 bits FS INSECURE	40
TLS_RSA_WITH_DES_CBC_SHA (`0x9`) INSECURE	56
TLS_DHE_RSA_WITH_DES_CBC_SHA (`0x15`) DH 1024 bits FS INSECURE	56
TLS_RSA_EXPORT1024_WITH_RC4_56_MD5 (`0x60`) INSECURE	56
TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5 (`0x61`) INSECURE	56
TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA (`0x62`) INSECURE	56
TLS_RSA_EXPORT1024_WITH_RC4_56_SHA (`0x64`) INSECURE	56
TLS_RSA_WITH_3DES_EDE_CBC_SHA (`0xa`) WEAK	112
TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA (`0x16`) DH 1024 bits FS WEAK	112
TLS_RSA_WITH_AES_128_CBC_SHA (`0x2f`) WEAK	128
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (`0x33`) DH 1024 bits FS WEAK	128
TLS_RSA_WITH_RC4_128_MD5 (`0x4`) INSECURE	128
TLS_RSA_WITH_RC4_128_SHA (`0x5`) INSECURE	128
TLS_RSA_WITH_AES_256_CBC_SHA (`0x35`) WEAK	256
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (`0x39`) DH 1024 bits FS WEAK	256
# SSL 3 (server has no preference)
TLS_RSA_EXPORT_WITH_RC4_40_MD5 (`0x3`) INSECURE	40
TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5 (`0x6`) INSECURE	40
TLS_RSA_EXPORT_WITH_DES40_CBC_SHA (`0x8`) INSECURE	40
TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA (`0x14`) DH 512 bits FS INSECURE	40
TLS_RSA_WITH_DES_CBC_SHA (`0x9`) INSECURE	56
TLS_DHE_RSA_WITH_DES_CBC_SHA (`0x15`) DH 1024 bits FS INSECURE	56
TLS_RSA_EXPORT1024_WITH_RC4_56_MD5 (`0x60`) INSECURE	56
TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5 (`0x61`) INSECURE	56
TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA (`0x62`) INSECURE	56
TLS_RSA_EXPORT1024_WITH_RC4_56_SHA (`0x64`) INSECURE	56
TLS_RSA_WITH_3DES_EDE_CBC_SHA (`0xa`) WEAK	112
TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA (`0x16`) DH 1024 bits FS WEAK	112
TLS_RSA_WITH_AES_128_CBC_SHA (`0x2f`) WEAK	128
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (`0x33`) DH 1024 bits FS WEAK	128
TLS_RSA_WITH_RC4_128_MD5 (`0x4`) INSECURE	128
TLS_RSA_WITH_RC4_128_SHA (`0x5`) INSECURE	128
TLS_RSA_WITH_AES_256_CBC_SHA (`0x35`) WEAK	256
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (`0x39`) DH 1024 bits FS WEAK	256
# SSL 2 (client selects suite)
SSL_CK_RC4_128_WITH_MD5 (`0x10080`) INSECURE	128
SSL_CK_RC4_128_EXPORT40_WITH_MD5 (`0x20080`) INSECURE	40
SSL_CK_RC2_128_CBC_WITH_MD5 (`0x30080`) INSECURE	128
SSL_CK_RC2_128_CBC_EXPORT40_WITH_MD5 (`0x40080`) INSECURE	40
SSL_CK_DES_64_CBC_WITH_MD5 (`0x60040`) INSECURE	56
SSL_CK_DES_192_EDE3_CBC_WITH_MD5 (`0x700c0`) INSECURE	112
SSL_CK_RC4_64_WITH_MD5 (`0x80080`) INSECURE	64

Handshake Simulation
Android 2.3.7 No SNI ²	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_RC4_128_MD5 No FS RC4
Android 4.0.4	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Android 4.1.1	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Android 4.2.2	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Android 4.3	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Android 4.4.2	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Android 5.0.0	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Android 6.0	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Android 7.0	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Android 8.0	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Android 8.1	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Android 9.0	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Baidu Jan 2015	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
BingPreview Jan 2015	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Chrome 49 / XP SP3	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
Chrome 69 / Win 7 R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Chrome 70 / Win 10	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Chrome 80 / Win 10 R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Firefox 31.3.0 ESR / Win 7	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_128_CBC_SHA DH 1024 FS
Firefox 47 / Win 7 R	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_128_CBC_SHA DH 1024 FS
Firefox 49 / XP SP3	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_128_CBC_SHA DH 1024 FS
Firefox 62 / Win 7 R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Firefox 73 / Win 10 R	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_128_CBC_SHA DH 1024 FS
Googlebot Feb 2018	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
IE 6 / XP No FS ¹ No SNI ²	RSA 4096 (SHA256)	SSL 3	TLS_RSA_WITH_RC4_128_MD5 RC4
IE 7 / Vista	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
IE 8 / XP No FS ¹ No SNI ²	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_RC4_128_MD5 RC4
IE 8-10 / Win 7 R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
IE 11 / Win 7 R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
IE 11 / Win 8.1 R	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
IE 10 / Win Phone 8.0	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
IE 11 / Win Phone 8.1 R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
IE 11 / Win Phone 8.1 Update R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
IE 11 / Win 10 R	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Edge 15 / Win 10 R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
Edge 16 / Win 10 R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
Edge 18 / Win 10 R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
Edge 13 / Win Phone 10 R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
Java 6u45 No SNI ²	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_RC4_128_MD5 No FS RC4
Java 7u25	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Java 8u161	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
Java 11.0.3	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
Java 12.0.1	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
OpenSSL 0.9.8y	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
OpenSSL 1.0.1l R	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
OpenSSL 1.0.2s R	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
OpenSSL 1.1.0k R	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
OpenSSL 1.1.1c R	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Safari 5.1.9 / OS X 10.6.8	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Safari 6 / iOS 6.0.1	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Safari 6.0.4 / OS X 10.8.4 R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Safari 7 / iOS 7.1 R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Safari 7 / OS X 10.9 R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Safari 8 / iOS 8.4 R	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Safari 8 / OS X 10.10 R	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
Safari 9 / iOS 9 R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
Safari 9 / OS X 10.11 R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
Safari 10 / iOS 10 R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
Safari 10 / OS X 10.12 R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
Safari 12.1.2 / MacOS 10.14.6 Beta R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
Safari 12.1.1 / iOS 12.3.1 R	RSA 4096 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
Yahoo Slurp Jan 2015	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
YandexBot Jan 2015	RSA 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 1024 FS
# Not simulated clients (Protocol mismatch)
Apple ATS 9 / iOS 9 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	Not supported ACTION NEEDED (more info)
Secure Client-Initiated Renegotiation	No
Insecure Client-Initiated Renegotiation	Supported INSECURE (more info)
BEAST attack	Not mitigated server-side (more info) SSL 3: `0x6`, TLS 1.0: `0x6`
POODLE (SSLv3)	Vulnerable INSECURE (more info) SSL 3: `0x6`
POODLE (TLS)	No (more info)
Zombie POODLE	No (more info) TLS 1.0 : `0x000a`
GOLDENDOODLE	No (more info) TLS 1.0 : `0x000a`
OpenSSL 0-Length	No (more info) TLS 1.0 : `0x000a`
Sleeping POODLE	No (more info) TLS 1.0 : `0x000a`
Downgrade attack prevention	No, TLS_FALLBACK_SCSV not 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)	Probably, but not exploitable (investigate to confirm and patch) (more info)
OpenSSL Padding Oracle vuln. (CVE-2016-2107)	No (more info)
ROBOT (vulnerability)	No (more info)
Forward Secrecy	Insecure key exchange INSECURE
ALPN	No
NPN	No
Session resumption (caching)	No (IDs empty)
Session resumption (tickets)	No
OCSP stapling	No
Strict Transport Security (HSTS)	No
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	TLS 2.152
Incorrect SNI alerts	No
Uses common DH primes	Yes Replace with custom DH parameters if possible (more info)
DH public server param (Ys) reuse	No
ECDH public server param reuse	No, ECDHE suites not supported
Supported Named Groups	-
SSL 2 handshake compatibility	Yes

HTTP Requests

1 https://mail.pubnix.net/ (HTTP/1.1 200 OK)
1
	Date	Thu, 14 Aug 2025 03:23:01 GMT
	Server	Apache/1.3.33 (Unix) PHP/4.4.1 mod_ssl/2.8.22 OpenSSL/0.9.7e
	X-Powered-By	PHP/4.4.1
	Connection	close
	Transfer-Encoding	chunked
	Content-Type	text/html

Miscellaneous
Test date	Thu, 14 Aug 2025 03:22:50 UTC
Test duration	111.438 seconds
HTTP status code	200
HTTP server signature	Apache/1.3.33 (Unix) PHP/4.4.1 mod_ssl/2.8.22 OpenSSL/0.9.7e
Server hostname	Mail.pubnix.net

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 v2.4.1

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