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Bandwidth gone through roof

     
3:30 pm on Mar 23, 2011 (gmt 0)

5+ Year Member



Hi,

Just trying to figure out why the bandwidth on a WP site has gone through the roof considering we haven't done any marketing or uploaded any big files as far as I know.

It's gone from 1.31gb in Feb to 14.75gb in March, so I'm wondering what the next steps would be? Could it be spam referral or hotlinking? How do I discover why it's risen so fast?

Thanks,

mn
3:32 pm on Mar 23, 2011 (gmt 0)

WebmasterWorld Senior Member topr8 is a WebmasterWorld Top Contributor of All Time 10+ Year Member



you need to look at your log files as a starting point, do you have access to them through your host?
3:49 pm on Mar 23, 2011 (gmt 0)

5+ Year Member



Hi,

Looking at the 23rd March logs, I can see Demonoid referenced a lot - seems someone is using one of the avatars on the site in their profile. Could that be the cause, or would that be quite minimal?

I'm on cPanel, so presumably can see more info?

Thanks
4:25 pm on Mar 23, 2011 (gmt 0)

WebmasterWorld Senior Member topr8 is a WebmasterWorld Top Contributor of All Time 10+ Year Member



i don't know about cPanel i'm afraid.

but doing the maths, hot linking can be an issue.

say an avatar is 50k, then 20 calls is a Meg
20,000 is a Gig.

although seems a lot of page calls to me to get to 13.4 gigs

maybe you want to see if traffic spiked one day for some reason.
do you have a stats package included with your hosting?
4:39 pm on Mar 23, 2011 (gmt 0)

WebmasterWorld Senior Member pageoneresults is a WebmasterWorld Top Contributor of All Time 10+ Year Member



Say an avatar is 50k


I've seen Avatars get really big, file size wise. I've even seen it happen on Twitter every now and then. People will upload images that are huge to begin with. Then, due to some oddball dimensions, the image optimization routine gets whacked and you end up with a 50x50 "forced" size avatar that is actually 1024x768 and weighs in at 300k+. Those types of hotlinks will definitely wreak havoc on your bandwidth consumption.
5:52 pm on Mar 23, 2011 (gmt 0)

5+ Year Member



Thanks for the replies. I'm going to try blocking the hotlinking with htaccess and see where that gets me - cpanel nor looking at the raw logs shows me more than a days activity at once (is that normal?)

Thanks
7:53 pm on Mar 23, 2011 (gmt 0)

5+ Year Member



usually cpanel includes a stats feature or two.

see if there is a button for awstats or webalizer. both should have multi-day traffic results.

also, see if cpanel has a hotling feature where it can (easily) be turned off.
12:52 am on Apr 15, 2011 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



Webalizer will give you an ordered list by bandwidth. Recompress the avatar, add a line in .htaccess to redirect external requests to an off-site image and repeat. Stop when you get below a size that has bandwidth usage similar to the remaining ones.
5:52 am on Apr 15, 2011 (gmt 0)

5+ Year Member



Thanks Hoople - it was a hotlinking problem it seems, so the htaccess trick to an offsite image worked.

Thanks
 

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