What is the consequence of having not relevant ad displaying on your site’s pages? Example, your site is about contact lens being targeted for those who are looking for information about contact lens, eyes health, or lasik surgery, but adsense displays ad about computer games or software downloads.

Most website, their visitors are coming from the search engine. If they want to look for information about lasik surgery, they will insert lasik surgery into the search box and begin searching. And, your web site is on the list of the top ten results (great SEO huh!). They click on the link to go to you web site.

Okay, they got what they want (your site is about contact lens, also lasik surgery), but the info is not enough. There are adsense ads displayed but they are irrelevant to their interest. So, they just go away from your site to continue their research.

I bet, if the ads were relevant, they would click them!

So what you do to get rid the irrelevant ads on your site? The easiest method is by using the adsense filter. You may found the adsense filter in your adsense account. Just insert the unwanted ads into the filter list.

The other way is by using “section targeting” method. “Section targeting” lets a publisher specify which sections of the content on a page that they would like Adsense to focus on for ad targeting purposes. To implement section targeting, you’ll need to add a set of special HTML comment tags to your code. These tags will mark the beginning and end of whichever section(s) you’d like to emphasize or de-emphasize for ad targeting.

The HTML tags to emphasize a page section take the following format:

< !-- google_ad_section_start -->

< !-- google_ad_section_end -->

You can also designate sections you’d like to have ignored by adding a (weight=ignore) to the starting tag:

< !-- google_ad_section_start(weight=ignore) -->

(Please note: between < and ! should have no space)

Another method to make the adsense ads relevant to your page is by using HTML header tags H1, H2, H3. Yes, H1, H2, H3 tags will make your font oversize and funny. To solve this problem, use CSS. Eg:

H1, H2, H3 {
font-size: 9pt;
font-family: Helvetica, Arial, sans-serif;
text-decoration: none
padding: 0 0 0 0px;
margin: 0 0 0 0px
}