Public Jabber Chat rooms

Christopher Muclumbus: A listing of public XMPP/Jabber chat rooms/groups.


Network statistics

Metric Value Notes
Chat rooms 7533 Includes all persistent rooms known (public/non-public and open/non-open)
Public rooms 7449 Only publicly listed rooms
Open rooms 5654 Only rooms which can be joined without password/invitation
Hidden rooms 0 Publicly listed MUCs where owners have requested de-listing from this directory
Total users 8296 Total number of users in all MUCs. Since we do not (and can not) track the real identities of users, this most certainly includes duplicates.
Domains 2138 Number of domains known; this includes non-MUC service domains and usually a single XMPP service has multiple domains (e.g. a base domain and a MUC service domain).
Stale domains 34 Number of domains which haven’t been reachable for more than 24 hours. Domains which are not reachable for more than seven days are removed from the database, unless they are being advertised by other domains.

Software statistics

Software name Absolute occurences Relative occurences
Prosody 343 56%
ejabberd 156 25%
Spectrum 28 5%
Christopher Muclumbus (1) 25 4%
Metronome 13 2%
biboumi 9 1%
Openfire 6 1%
jabberd 4 1%
Other (less than 3 instances) 34 6%
Unknown (no version info available) 1520


  1. So some people apparently find it useful to host "echo" services which simply reflect the query back to the sender. They act like a mirror. So when Christopher Muclumbus asks them for the software they’re running, it effectively asks itself without knowing that it does that. That’s what those "Christopher Muclumbus" entries are.

Service statistics

Service type Instances
User Server
Normal user accounts, like you and me
Group Chat Server
Group chat rooms, as listed by this service
IRC Gateway
Access to IRC networks via Jabber
File Storage / Upload Service
File storage for use with Jabber (e.g. HTTP Upload)
Publish-Subscribe Service
Distribute data in a publish-subscribe manner; e.g. news, weather alerts, etc.
File Transfer Proxy
To facilitate file transfer via "difficult" networks