Settings: RSS Pinging
This is a key feature of WPI that attracts a great deal of spider activity.
How WP normally works (if you’ve got pinging enabled) is that when you make a new post, WP will run through each ping service in your list and let them know a new post has been made.
You’re only meant to ping when a URL has changed content, and that’s exactly what WPI does here.
There are a selection of other URLs that also change content when you make a new post...
- The post category
- Post tag pages
- Archive page for this month
- Author page of post
Each of these can be pinged as well, resulting in dramatically more bot activity on your site.
This should be checked on all blogs. However, this is the main feature that’s brought dedicated servers to their knees from extreme bot traffic.