I have noticed a trend that I am now convinced is not in my imagination! When I update a page that has Adsense on it, the following days' click value increases. After a couple of days it falls. Sometimes, simply re-saving/uploading the page without any meaningful change (ie put in one blank space) has the same effect of increasing the click value for a short period of time. Has anybody else noticed anything similar with Adsense?
I have seen one similar trend. When Adsense is done for first time on site, than the CTR and EPR both are high, but slowly it falls. When I put some high bid keywords, both increases....but after some time both falls.
Elearn, I think I might have noticed this as well and have wondered if this is Google doing something funny. I have actually noticed other strange things too I was thinking of posting about such as all the revenue in an adsense account being leveled or adjusted to a median meaning when some sites have great clicks the other sites don't and vice versa, but not all at once. This has been happening for a while and not sure if its an illusion I'm perceiving or something funny... Would like to hear if anyone else has your problem...
Yeah, strange things happen. I haven't noticed the things that have been mentioned but there is one I have noticed on a few of my channels. If I catch the channel early in the morning when it only has 1 click, the amount earned on that click is rediculously high. Then, as the day goes on, and more clicks accumulate, the average per-click earnings moderates.
On one of my sites it seems like i get higher paying ads just after ads update. What i mean is that at first i get high CPC, then it goes down during the week untill all ads start showing public or alt ads. Then the next day i get a new set of ads after google spiders the pages again and CPC jumps up again. Now the difference could be up to $50 a day. Also it seems like CPC tends to drop after i go over certain amount of clicks. For example $40 with 270 clicks but the second i go over 300 i get $25 for 380 clicks. The numbers above i made up to show you the pattern.
I have also noticed that 'traffic triggered CPC reduction as well. Thought maybe as most of my traffic is driven by Adwords and Go Click, that G just wanted to keep one step ahead on the profit scale. Now that the Adsense and Adwords accounts use a single password I reckon that possible-scenario will become a scary probability that will be hard for G to resist. It all adds up to a one-way street in favor of G as far as I can see. If the CPC remain consistent (high or low) it would be less frustrating than the sense of G manipulation. I must say, I am waiting for Yahoo to come on-line and will flip 100% unless G quits fooling around. I don't think I'm alone.
Google isn't doing anything funny, in fact, they're playing the game more in the favor of content creators with constant, unique content updates. First, Google's prioritizes AdSense ad units to display the most profitable ads at the moment. AdWords is updated millions of times a day by advertisers, but who knows what the most popular day of the week, time of day, and day of month is for advertisers to buy more ads. Second, Google's search engine likely gets the cream of the crop since they also have the most impressions of ads. I bet all of Google's searches far outnumber all AdSense publishers in terms of impressions per day. Whoever has the most impressions is getting the best ads. Third, scraper sites and made-for-adsense sites are likely taking the best impressions early each day. Google is working hard to battle these sites in their code, but they're gaining ground -- it is obvious with the number of made-for-adsense questions we get here. Some of the users of DP are to blame, too! Fourth, as you update your site, you add new words that give Google the ability to find new ads that were previously untapped. Let's say that your site is static, and Google finds the words "clogged toilet" as your most profitable words. It will display those ads until the ads are clicked or pulled by the advertisers. Over time, your site and other sites also displaying those ads will go through all the top paying ones. The future CPCs go down, unless advertisers come back to AdWords. The next time you update your site, you write about the same topic, but Google finds a higher paying key phrase: "how to unclog the toilet." Now it displays new ads with a higher CPC. Also, with your old keyphrases, advertisers might have added higher payouts, so you could be getting higher CPCs from that! Google seems the most fair because they're battling the made-for-adsense crowd. YPM probably pays more, but do you honestly think you'll get a piece of it after the profressional scrapes get involved?