I saw a notice from Google that their blog-search robot will start reporting subscriber counts. I poked into a recent log-file and found lots of agents doing this, so here’s a report with some numbers.
Volume · There may be some issues with these numbers, read the discussion below; but here’s the first cut.
Issues · As it says above, there are some. First of all, I’m only counting the number of subscribers to my Atom 1.0 feed, not my no-longer-present permanently-redirected RSS feed. I think the biggest sufferer is NetVibes, which drops 354.
Second, several of the services, notably Google and NewsGator, report what
seem to be multiple different groups of subscribers to my Atom feed. A few
of them are kind of understandable: two slashes instead of one,
tbray.org, and a few to
/ongoing/ongoing.atom?foo=bar (huh?); but for example Google,
which helpfully labels each group with a unique
that several different ones apply to
http://www.tbray.org/ongoing/ongoing.atom. Beats me. This may
lead to a little inaccuracy when adding up other multi-subscribers like
NewsGator; but wouldn’t change the ranking, I think.
Rah Rah Bloglines ·
Apparently the programmers of Bloglines’ robots are the only ones who have
taken the trouble to read RFC2616 and RFC3986 (especially Section 6 of the
latter); they handle all the redirects and variations correctly and only know
about two ways to subscribe to me, the right one, and twenty subscribers to
Unclear On The Concept ·
There are a few people who’ve subscribed to URIs that don’t exist, or
/ongoing/ itself, my
ongoing.pie (snicker), random pictures;
that’d be part of your Internet Background Radiation.