Overview of spam from Concert.net

15 Feb 2006

Note: Automated spam monitoring stopped several years ago. These web pages are maintained for historical reasons. Some may be updated from time to time as news about the individual sites becomes available.

No spam today

Overview of last 2 reports

date	posts	total	BI
11 Sep 2000	23	151	55.83	full headers
25 Feb 2000	173	453	276.47	full headers

Overview of history

	posts	total	BI
Total spam since 25 Feb 2000	196	604	332.30
Peak spam on 11 Sep 2000	23	151	55.83
Peak daily spam on 11 Sep 2000	0	0	0.28	(198-day average)
Average daily spam	0.1	0.8	0.28

full history also available

General information about Concert.net

Concert.net has a responsive abuse department and is rarely a problem.

Site history

28 Sept 1999: Saylor has left Concert.net.
27 Sept 1999: Saylor has joined Concert.net.
29 Sept 1998: Concert.net has disconnected tref.nl

To report spam, contact abuse@concert.net

A complete history may also be available.

General notes:

Only a small subset of usenet (261 groups) was sampled. Only articles that hadn't been cancelled yet were counted. Actual spam may have been much greater.
Heuristics that detect single-posted articles are, by their very nature, somewhat shaky. Innocent articles may be tagged as spam because they share certain characteristics or keywords with actual spam. In particular, a posted spam complaint that includes the spam in its entirety will very often be identified as spam.
Some posts may be forgeries intended to look like they came from Concert.net.
The first entry in the history file is not used to compute peak or average spam counts, as this entry covers an unknown number of days. This may cause an apparent disreprency between spam totals and spam averages.

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The opinions expressed on this page are solely those of Ed Falk and do not necessarily represent those of any other organization, (although I hope they do). I wish to thank Rahul.net for hosting this web page.