Monday, March 26, 2012

How To See Deleted Or Unavailable Pictures On Facebook

How To See Deleted Pictures On Facebook

Facebook use CDN service as other big sites use for making their website loading speed fast.This CDN service allow us to see pictures on facebok even they are deleted on facebook


Steps To See Deleted Pictures:-

    First find a picture for a experiment
    Now right click on the picture and and
    click on "copy image URL". Paste this address on notepad and wherever you want to save


4.Now delete the picture and trying to access the picture again.You find the error like something


Now copy the link address from the notepad which we have saved and then open the link in browser. And You will see the photo which you have deleted before few minute and was unavailable to see.


How It works
:-This is possible because of CDN service.The logic behind it is that when we delete some picture from facebook.It is deleted by the facebook database and server.But the picture we deleted on facebook is copied by many of facebook users.Because of large and millions of user in facebook which are still on fb.


Logic Behind This:
-When we open a photo on facebook, its URL looks like this: https://www.facebook.com/photo.php?fbid=xxxxxxxxxxxr&set=o. xxxxxxxxxxxxxxxxxxx &type=1&ref=nf

Here facebook restricts us by the the fb id. Facebook checks whether we are authorize to see the photo or not. When we see the photo by image URL, it looks something like this.

https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash4/s320x320/431527_316797435048428_100001545211364_864180_547497944_n.jpg

With this link, we see the photo direct from the server with its original location. So there is no restriction on the photo now.


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