Largest Newsgroups

alt.binaries.boneless
alt.binaries.ath
alt.binaries.cores
alt.binaries.mom
alt.binaries.nl
Feed analysis of: 2010-03-10

Usenet Growth

1997: 2 GB/day
1998: 20 GB/day
1999: 50 GB/day
2000: 150 GB/day
2001: 250 GB/day
2002: 300 GB/day
2003: 650 GB/day
2004: 1000 GB/day
2005: 1800 GB/day
2006: 2500 GB/day
2007: 3000 GB/day
2008: 4000 GB/day

Newsfeed Size

Retention

Binary Retention: 220 Days
Text Retention: 3 Years (still growing)

Our current retention for all binary newsgroups is 220 days. This concerns all binary newsgroups, including the less popular newsgroups.

We keep headers/overview for binary newsgroups for minimal 55 days with a maximum of 13 million headers per newsgroup. After this period articles can still be downloaded by MessageID (for example with nzb-files or index servers).

The retention for text newsgroups is 3 years and is still growing.