Site gets blocked by ISP

Hello BHW ppl.
I have a website where I do some kinda youtube video searching and it displays the results. The problem is when I search for around 10 odd times, The site wouldn't be accessible anymore until next day. However my friends using different ISP were able to access my website. I have faced this time to time and tried using proxies to the browser to overcome it. I am not sure what causes the problem and how to overcome it permanently. I couldn't post the url of my site since it aint allowed.

Any advice would be much appreciated.

use private proxys

I am already using proxies to access it. But I really wanna know what's the root cause of the problem. the site is videotoblogdotcom

use L1 private proxys

Zipblack, I don't have problem using proxies, but would like to know the root cause of why the site gets temporarily suspended from my ISP en route to the web server.

bump