AdSense Optimization Boot Camp Tip # 1
I am a firm believer (with the stats to back it up) that adding a second AdSense placement on a webpage can lead to a loss of revenue, because with lower paying ads in a second ad unit, you can lose revenue per click when someone clicks those second ad placement ads instead of the first. You can make a lot more money with a single well-placed ad unit over having multiple ad units.
The other disadvantage of having multiple ad units is that they can make your site seem very “ad heavy”, something which many people try and avoid. For one, it is not very user-friendly, and when you hit that tipping point of ads vs. content, it can seem more “Made for AdSense”-ish than most prefer, where you want people to click on the ads and not bother with what you have to say.
An alternate solution is to use an AdSense image ad only placement, where only an image ad will show, and text ads will not display. This will help keep down the number of text ads appearing on your site (especially if you are already supplementing AdSense with other types of text ads or text links).
A couple things to keep in mind when you do this:
- Because most people have their accounts set to either text only or text/image ads, you will need to select “image ads only” when you generate your AdSense code.
- Use a channel so you can track revenue
- Be sure to pick an image ad friendly ad size. These are:
- Leaderboard (728×90)
- Banner (468×60)
- Skyscraper (120×600)
- Wide Skyscraper (160×600)
- Small square (200×200)
- Square (250×250)
- Medium Rectangle (300×250)
- Large rectangle (336×280)
- If ad inventory could be an issue (depending on both the market area and physical location of your visitors), start with a banner ad or one of the more common rectangles.
- You may also see video ads show in the image ad space. If you prefer video, avoid using the banner ad size in the above ad unit size list.
If your website has room to accomodate an image ad as a secondary ad unit – or to replace a secondary ad unit – it can be worth testing to increase ad revenue.