it's direct traffic. they are mainly hitting 2 pages on our site. the organic traffic from google has been consistent going up and down slightly which is norma

it's direct traffic. they are mainly hitting 2 pages on our site. the organic traffic from google has been consistent going up and down slightly which is normal. however the direct traffic shot up from 1100 to 14000 a day! i'm not too worried now since it's not eating too much bandwidth but it could cause an issue soon by bogging down all the bandwidth. in my robots.txt i have: User-Agent: * Disallow: /rate.php Disallow: /ratewp.php Disallow: /brokenLink.php Disallow: /download.php should i restrict the user-agent to only bing, google and yahoo to see if that might be it? the fact that it's all US based IPs is what's weird.