So it is probably the ISP.
I don't know for sure, but it seems to be some kind of a logger.
From a brief look, it seems to send the load time of the web page to a local server at this ip: 1.2.3.4
I hope this helps...
If you don't want your website to be indexed at all, use robots.txt.
Just create the file in your home page directory:
User-agent: *
Disallow: /
I don't know how it'll affect already indexed pages, but it might be worth to try :)