One of our sites had a strange traffic spike yesterday, where we received about twice our current usual daily traffic (nearly 4,000 instead of nearly 2,000).
I couldn't see any reason for it. At one stage I thought we were benefiting from a topical link on a major national newspaper's website, but a bit of digging showed that that link had only sent us five visitors.
In the end it turned out to be 1,800 visits from Bangladesh, allegedly by 1,300 different visitors, all of whom had apparently visited the site's home page only.
Some supplementary info:
Any ideas what might be going on? It's got me baffled. Unless, of course, it's just an attack - but why focus on Bangladesh in particular to conduct it? It makes it very easy to identify fresh IPs.
- Many of the visits were by Firefox clones (CometBird, SunDial), which from the sound of it are akin to some of the more nefarious browser add-on bars;
- They're still going on today, although I've managed to block most of the relevant IP ranges;
- There's no AdSense on the home page. I did wonder if they were somehow trying to exploit our site to gain AS revenue, but I can't see how that would work.