Facebook bot ( facebookexternalhit ) can be a bandwidth hog
Recently I started paying a lot more attention to usage of Facebook on make some content more accessible to users. At the same time, I starting making sure that each link on Facebook has the right thumbnail on it. After doing it, some side effects were apparent: 1. Facebook doesn’t keep the processed images for long after the page was shared. So, every so often, you get a request for each of the images you ( or someone ) shared on Facebook. 2. It also makes a poor job at making sure that each server doesn’t needs to get the …