## Burrow the Burrows ##
________Statistics_on_the_graph_of_servers________
(last update: 20180827 17:00:00 GMT)
### N.B.: THE CRAWL IS NOT COMPLETE, SO THESE
RESULTS ARE PARTIAL AND NOT CONCLUSIVE.
The graph of servers associates a node to each
visited server, and connects node A to node B
with a direct link if there exist at least one
menu under domain A that contains a type-1
selector to a menu under domain B.
The graph of servers contains:
* 333 nodes (active servers), and
* 2154 edges (inter-server connections)
including self-loops, i.e., connections from one
server to itself.
This means that each server points, on average,
to:
* 6.468 servers
If we remove self-loops, the remaining network
contains:
* 2006 edges (inter-servers connections)
and in this graph only
* 229 servers
have connections towards other active servers,
with an average of
* 8.759 outgoing connections per server.
See below a plot (axes in log-scale) of the
number of servers having a given in-degree
(i.e., number of connections from other servers):
100 +++---+--+--+-++++++-----+---+-+-++-++++----+---+-+-+-+++++
++ O + + ++
O+... .. : # servers by in-degree +..O..+++
++ . .O : ++
++ O. O ++
++ : ++
| OOOO |
10 +++ : +++
++ O O ++
++ O : ++
++ : O: ++
++ :::O ++
++ O O:O O ++
+ + : ::..: + +
1 +-+---+--+--+-++++++---O-OO--O-+-O+-+++O----+---+-+-+-+++-+
1 10 100 1000
incoming edges
And here is a plot (axes in log-scale) of the
number of servers having a given out-degree
(i.e., number of connections to other servers):
1000 +++---+--+-+-+-+++++-----+--+-+-+-+++++-----+--+-+-+-+++++
++ + + ++
++ # servers by out-degree +..O..+++
++ ++
| |
100 O++.. +++
++ . ++
++ O..O ++
++ : ++
10 +-+ : +-+
++ O.O O ++
++ + : ++
++ O : O ++
++ : +OO O O...O +: + ++
1 +-+---+--+-+-+-++OO+-OOOO+--+-O-OO+OO++---O-+OO+-+-+-+++-+
1 10 100 1000
out-going edges