Okay thanks for the details.
but question is vimeo.com for e.g we are loading video thru vimeo.com in our website thru embeded iframe. but in one of the school the network adminstrator has blocked vimeo.com and youtube.com so our embeded iframe video is not loading in our website.
so i want to check that if on network vimeo.com url or its ip is blocked by network so i want to show a message in our website that it cannot be load .
please advice.