Does adding channels drop EPC?

[JohnKelly]

I added a new channel late in the evening on March 1st, and reactivated an old one last night on March 2nd. The new channel is actually to monitor an subdomain I set up on my main site so it's not even a new domain.

This morning my EPC has been cut in half from February's average!

Does activating/reactivating channels cause a drop in EPC across all sites in the account?

The new channel is getting hardly any traffic, so it's not a case of it pulling the average EPC down. The reactivated channel's traffic is very small also, compared to my main site.

Any ideas?

[hunderdown]

I'm inclined to think that what you've experienced is a coincidence. Channels are no more than sub-sets of the data that's already being reported--how that data is chopped up doesn't affect the totals. Unless, of course, you actually changed the collection of pages that are displaying AdSense ads?

For what it's worth, yesterday--March 2nd--was a very down day for me too, about half of Feb. 28 and March 1st, which were at my site's usual average. Perhaps you changed your channels at the same time a smart pricing adjustment kicked in? But we both need to watch for a longer period to see if something's really happening. Perhaps it's just some random fluctuation...

[ve3cnu]

Me too.
Mar.1 was awesome
Mar.2 only so so.

[mike schmitz]

Id be hard pressed to guage your site's performance on something like channels and wouldn't take other people's website performance as an indicator unless overwhelming.

There are just to many variables to check my EPC for every "my EPC's are dropping" post.

I think most low volume websites look at day to day stats and make decisions that are faulty. Put a lot of thought and effort into your Adsense placements and then let a suitable amout of time (a month~) or a crap load of impressions go by in an isolated environment in order to make decisions.

M