IM Observatory

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 126 results

SSL 2 0 0%
SSL 3 1 0.8%
TLS 1.0 76 60.3%
TLS 1.1 80 63.5%
TLS 1.2 125 99.2%

Grades 126 results

A 105 83.3%
B 20 15.9%
C 1 0.8%
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 74 59.2%
3072 1 0.8%
4096 50 40%

StartTLS

Type Client to server Server to server
Required 80 86% 21 63.6%
Allowed 13 14% 12 36.4%

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 120 82.2% 19 13%
Invalid 4 2.7% 3 2.1%

SASL mechanisms 93 results

Mechanism # times offered before TLS # times offered after TLS
PLAIN 15 16.1% 92 98.9%
SCRAM-SHA-1 14 15.1% 73 78.5%
SCRAM-SHA-1-PLUS 0 0% 29 31.2%
X-OAUTH2 2 2.2% 25 26.9%
DIGEST-MD5 9 9.7% 20 21.5%
CRAM-MD5 6 6.5% 7 7.5%
LOGIN 0 0% 2 2.2%
OFMEET 1 1.1% 1 1.1%
JIVE-SHAREDSECRET 1 1.1% 1 1.1%
NTLM 1 1.1% 1 1.1%
ANONYMOUS 1 1.1% 1 1.1%
TIKITOKEN 1 1.1% 1 1.1%

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 78
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 2
Let's Encrypt Authority X3 1B:23:67:53:54:FC:AD:90:11:9D:88:07:50:15:EA:17:AD:D5:27:D8 2
DFN-Verein Global Issuing CA C9:DC:B0:47:AC:8C:5F:09:05:ED:77:52:8C:BD:4B:84:D9:46:3C:45 2
GeoTrust RSA CA 2018 7C:CC:2A:87:E3:94:9F:20:57:2B:18:48:29:80:50:5F:A9:0C:AC:3B 1
Callcc Root Certificate Authority AC:22:14:C2:6F:EF:30:84:4C:3B:0C:96:A8:AF:32:21:3D:E4:2A:19 1
viperam1987.i234.me FC:30:F6:89:B4:82:F1:5C:22:B3:D2:22:CB:B3:3F:D3:6D:5E:DD:BC 1
mservice.ru.com 0C:F1:FE:F0:84:A3:DB:B9:6E:E5:55:4D:65:F4:12:F9:27:A6:73:74 1
ejabberd 21:F5:83:EE:6A:07:73:53:CA:E7:CA:84:34:F7:36:09:53:37:2B:7D 1
SSL.com DV CA 50:CF:0E:88:EA:5C:72:95:82:75:3A:5A:AE:D2:CC:7C:D1:F7:DA:3A 1
jabber.censa.edu.cu 41:2A:1B:F7:98:61:C1:BF:76:01:F6:93:0E:25:D9:15:6F:B2:35:08 1
RapidSSL RSA CA 2018 98:C6:A8:DC:88:79:63:BA:3C:F9:C2:73:1C:BD:D3:F7:DE:05:AC:2D 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
ifuckthesystem.does-it.net 0E:E6:D3:C0:BC:6C:7A:67:6F:B1:83:B8:48:1E:94:68:3E:64:9C:F1 1
jcloud.rzeszow.pl 1F:56:A3:D1:71:E5:BE:7B:51:7F:76:46:36:6E:CF:EC:54:90:D7:E6 1
njpulsa.co.id 1C:C3:7E:A9:F5:52:F5:8C:40:AC:71:37:78:41:91:22:73:BA:E4:3B 1
jabber.mcosys.de AF:7D:0E:3F:73:49:48:F2:C5:7D:CA:81:16:15:A4:97:B5:32:57:69 1
jabber.mcosys.de AD:59:5B:62:A3:31:D1:72:A9:60:1C:FB:76:37:CA:C6:33:43:6D:F8 1
SwissSign Server Gold CA 2014 - G22 AD:F2:89:73:16:71:8B:45:25:CE:37:00:82:D9:F1:23:D4:93:8F:98 1
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

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 37 results

Target Type When
404.city server to server
4ept.net client to server
5222.de client to server
a3.pm client to server
beherit.pl server to server
chat.joscomputing.space client to server
chat.joscomputing.space server to server
datentopf.org client to server
datentopf.org server to server
diasp.org client to server
dismail.de client to server
disroot.org client to server
jabb3r.org client to server
jabber.calyxinstitute.org client to server
jabber.de client to server
jabber.de server to server
jabber.systemli.org client to server
lin.codes client to server
lin.codes server to server
mailbox.org client to server
mdosch.de client to server
mytum.de client to server
procnull.de client to server
riseup.net client to server
skynetcloud.site client to server
skynetcloud.site server to server
snopyta.org client to server
somlen.de server to server
suchat.org client to server
toxol.eu client to server
transitiv.net client to server
transitiv.net server to server
tuxone.ch client to server
xmpp-hosting.de client to server
xmpp.xyz client to server
zulaa.name client to server
zulaa.name server to server

Servers with DNSSEC signed DANE records 0 results

Target Type When

Servers with a hidden service 1 results

Target Type When
jabber.calyxinstitute.org client to server

Servers not offering encryption 0 results

Target Type When

Servers sharing private keys 0 results

Target SHA256(SPKI)

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