Various reports of all servers tested

Report for december 2013 | Results of the last day | Results of the last week | Results of the last month

TLS versions 43 results

SSL 2 0 0%
SSL 3 0 0%
TLS 1.0 14 32.6%
TLS 1.1 19 44.2%
TLS 1.2 42 97.7%

Grades 43 results

A 38 88.4%
B 4 9.3%
C 1 2.3%
D 0 0%
E 0 0%
F 0 0%
Does not penalize untrusted certificates.

RSA key sizes for domain certificates

RSA key size Count
2048 24 60%
4096 16 40%

StartTLS

Type Client to server Server to server
Required 26 89.7% 11 78.6%
Allowed 3 10.3% 3 21.4%

Trust

To do authenticated encryption, a certificate needs to be both trusted and valid. Trusted means it is issued by a well-known CA and valid means it is valid for the domain we want to connect to.

Trusted Untrusted
Valid 0% 43 93.5%
Invalid 0% 3 6.5%

SASL mechanisms 29 results

Mechanism # times offered before TLS # times offered after TLS
PLAIN 3 10.3% 29 100%
SCRAM-SHA-1 3 10.3% 24 82.8%
SCRAM-SHA-1-PLUS 0 0% 12 41.4%
X-OAUTH2 2 6.9% 9 31%
DIGEST-MD5 3 10.3% 4 13.8%
CRAM-MD5 1 3.4% 2 6.9%
LOGIN 0 0% 1 3.4%

Servers supporting SSL 3, but not TLS 1.0 0 results

SSL 3 and TLS 1.0 are very similar, but TLS 1.0 has some small improvements. This table is meant to help judge whether SSL 3 can be disabled by listing the servers that do support SSL 3, but not TLS 1.0.

Target Type When

Servers supporting SSL 2 0 results

SSL 2 is broken and insecure. It is not required for compatibility and servers should disable it.

Target Type When

CAs used Top 30

Name/Organization SHA1 Count
Let's Encrypt Authority X3 E6:A3:B4:5B:06:2D:50:9B:33:82:28:2D:19:6E:FE:97:D5:95:6C:CB 28
COMODO RSA Domain Validation Secure Server CA 33:9C:DD:57:CF:D5:B1:41:16:9B:61:5F:F3:14:28:78:2D:1D:A6:39 1
AlphaSSL CA - SHA256 - G2 4C:27:43:17:17:56:5A:3A:07:F3:E6:D0:03:2C:42:58:94:9C:F9:EC 1
Sectigo RSA Domain Validation Secure Server CA 33:E4:E8:08:07:20:4C:2B:61:82:A3:A1:4B:59:1A:CD:25:B5:F0:DB 1
tfs.today E0:C5:77:C9:7F:CF:74:F0:73:D7:B2:A5:5A:D0:B2:2D:57:21:F0:7F 1

Servers using <2048-bit RSA certificates which expires after 01-01-2014 0 results

As described in the CA/Browser Forum Baseline Requirements, certificates with RSA keys with less than 2048 bits should not be issued with an notAfter date after 31-12-2013. This list lists all certificates which violate that rule.

Target Type When Issuer

Servers with DNSSEC signed SRV records 11 results

Target Type When
404.city client to server
core.radiosignal.net client to server
core.radiosignal.net server to server
diebesban.de client to server
dismail.de client to server
im.icttci.cz client to server
jabber.de client to server
mdosch.de client to server
mdosch.de server to server
skynetcloud.site client to server
skynetcloud.site server to server

Servers with DNSSEC signed DANE records 0 results

Target Type When

Servers with a hidden service 0 results

Target Type When

Servers not offering encryption 0 results

Target Type When

Servers sharing private keys 3 results

Target SHA256(SPKI)
diebesban.de c2s 39:E1:A1:AD:ED:B3:01:4E:A0:8F:35:A7:83:A8:0A:6E:45:F6:CA:40:9B:C5:4A:51:2A:2F:2E:0F:32:E7:7E:84
mdosch.de c2s 39:E1:A1:AD:ED:B3:01:4E:A0:8F:35:A7:83:A8:0A:6E:45:F6:CA:40:9B:C5:4A:51:2A:2F:2E:0F:32:E7:7E:84
mdosch.de s2s 39:E1:A1:AD:ED:B3:01:4E:A0:8F:35:A7:83:A8:0A:6E:45:F6:CA:40:9B:C5:4A:51:2A:2F:2E:0F:32:E7:7E:84