Important... Read This...
I do not run the vortex web crawler - The crawler I built was shut down over 10 years ago.
But it appears that someone else has decided to use the "vortex" name on some other crawler.
This has nothing to do with me, but it seems that some popular web statistics packages (eg, AWStats) mistakenly direct people who have been visited by a crawler with the same name to this page.
Until AWStats fixes the problem, my advice is that you contact the AWStats developers to let them know about their mistake (maybe politely suggest that they update their user agent database?)
In summary: If you see a crawler by the name of "Vortex" in your logs:
Thanks for your understanding.