About CTR CTR rate simply stands for Click Through Rate. It is the percentage value of people who actually click on your advertisement. The click through rate is the ratio of the number of times the ad appear in your website and the number of times peoples clicks it.
Experiment with the color scheme and layout of the adsense ads. Ad formats which more closely match the overall look and feel of your website tend to do better on average.
Focus your content on each page as much as possible. In other words, the more coherent the content on the page, the more likely that the ads which are displayed will be relevant to a visitor. The more relevant the ad, the more likely the user may click on the ad link to find other information.
Experiment by switching between text ads and image ads.
Find the right mix of text and graphics on your site, which may vary based on your content.
Track your page performance by making channels of ads in your AdSense Control Panel. Keep experimenting till you are satisfied with your CTR.
If you develop a poor quality content website, it will likely give you high CTR and clicks, but you will be getting low priced ads. Besides, nobody will like to add your URL to their favorites. However, if you have quality content that keeps the visitors glued, you may get low CTR, but you will be getting high priced ads and regular visitors.
CPC means How Much You Earn for Each Click made by visitors on your ads. It may happen that, your CTR is very high but still your earnings are not satisfying you. This happens because of low CPC, you are getting low earning on each click. CPC depends on relativity of ads with your content, popularity of your content niche, and number of ads being displayed on your page.
Enable all of your ad units to show both text and image/rich media ads. By increasing the number of advertisers competing for your ad units, the ad auction will make sure that the highest paying ad will be shown.
Keep your filter list small so you don’t lower your revenue potential by blocking the highest-paying ads.
Increase the number of ads competing for your site by setting up your custom channels for placement targeting.
The top-paying ads will be shown in the ad unit that appears first in your HTML code. Find (CTR) of ad unit by using custom channels. Then, you can easily change the code of your website to make sure that your top performing unit is the one with the highest-bidding ads.
eCPM is calculated by dividing total earnings by total number of impressions in thousands. It is a great performance measure for your various ad units, so when experimenting, you can use eCPM to compare your results.
eCPM = Total Earnings/(Impressions*1000)
eCPM depends on two factors; the CTR (Click Through Rate) and the CPC (Cost Per Click)
Since eCPM is calculated with earnings divided by impressions, you need to either increase your earnings per impression or reduce the number of impressions. (remove ads from low quality pages/people do not click ads)
Another way to increase eCPM is to have high revenue, you get high revenue by either getting more clicks or high paying ads.
Get More Relevant Adsense Ads - Google Adsense often shows unrelated ads due to some words triggering wrong ads, Get more relevant content by using google section targeting as more relevant ads means more clicks.
Use less ads - Yes its true, by using less google adsense ads, you often get higher earnings. The logic is, the lesser the ads, the more high paying ads will be shown.
Remove low paying Adsense advertisers - there is a list of huge adsense advertisers who pay very less or there are ads are not very targeted getting less clicks, you can remove such advertisers through Google competitive Ad Filter (use it with caution)
Write about high paying topics:- Write about high paying topics within your niche (keyword Research)
Improve ad placement (CTR):According to the Google Heat map for maximum visibility your ads should be placed front and center, at the top of your main content
Decreasing your website’s bounce rate will increase your CTR and eCPM.: If your bounce rate is high then your visitors are likely closing the browser window or tab holding your website, if this is the case they aren’t clicking ads
What the ads pay varies a lot, what ads you get have some to do with it. The spider uses the first 100 words (most of the time) of each page to find words that advertisers are bidding on (key words), that would be the area to add other words to get other ads that may pay better .
Note:Just work on the keywords and the income will go up.