mcb@ncis.tis.llnl.gov (Michael C. Berch) (04/28/89)
We were sitting around jawing about conversion to the Domain Name System and how many sites are still using ".UUCP" or other name schemes, and how many sites don't put out legal Message-IDs at all. So I decided to count, using the Message-IDs in the history file. I don't remember how long we are keeping things in the history file after expiration, but there were about 64K articles in the file, which looked like a good round number for a sample. The "(No domain)" count were Message-IDs without a dot in them, and were counted automatically, so I don't know offhand who isn't doing an addr-spec on the right-hand side of the Message-ID. The "(Badly formed)" count was done by hand and represents 202 articles from about 70 different sites. Of those 202 articles, about half were literally badly-formed garbage and half were nonexistent top-level domains. I was loose about the legitimacy of top-level domains; in addition to all the legal (i.e., registered and known to the root servers) domains, I also included a few well-known names like "uninett", "junet", "bitnet", and "cdn" in the main list instead of putting them in the "nonexistent" domain list. People who used company names, etc., as top level domains, however, were considered losers and put in the "nonexistent" list. Michael C. Berch mcb@ncis.llnl.gov / uunet!ncis.llnl.gov!mcb ----- Usenet Top-Level Domain Census, 27 April 1989 edu 24851 com 16019 uucp 15891 gov 923 org 859 uk 758 us 613 mil 531 net 526 ca 511 arpa 315 se 215 nl 195 oz 176 bitnet 128 fi 85 ie 78 dk 63 de 45 fr 44 au 39 ch 21 cdn 21 nz 18 junet 18 il 15 no 13 is 12 uninett 11 es 7 pt 6 pb 4 ia 4 hk 3 it 1 cs 1 (No domain spec) 1699 (Badly formed) 202 --------------------- Total 64937