Doing the wrong things in Adsense and other forms of advertisements, whether intentionally or unintentionally, will result in a severe penalty, may get you banned and even have your account terminated. Nothing like a good action taken to keep wrongdoers from doing the same things over again.
So for those who are thinking of getting a career in Adsense, do not just think of the strategies you will be using to generate more earnings. Consider some things first before you actually get involved.
Hidden texts. Filling your advertisement page with text too small to read, the same color as the background and using css for the sole purpose of loading them with rich keywords content will earn you a penalty award that is given to those who are hiding links.
Page cloaking. There is a practice of using browser or bot sniffers to serve the bots of a different page other than the page your visitors will see. Loading a page with a bot that a human user will never see is a definite no-no. This is tricking them to click on something that you want but they may not want to go to.
Multiple submissions. Submitting multiple copies of your domain and pages is another thing to stay away from. For example, trying to submit a URL of an Adsense as two separate URLs is the same as inviting trouble and even termination. Likewise, this is a reason to avoid auto submitters for those who are receiving submissions. Better check first if your domain is submitted already on a certain search engine before you try to submit to it again. If you see it there, then move on. No point contemplating whether to try and submit there again.
Link farms. Be wary of who and what you are linking your Adsense to. The search engines know that you cannot control your links in. But you can control what you link to. Link farming has always been a rotten apple in the eyes of search engines, especially Google. That is reason enough to try and avoid them. Having a link higher than 100 on a single page will classify you as a link farm so try and not to make them higher than that.
Page rank for sale. If you have been online for a while, you will notice that there are some sites selling their PR links or trading them with other sites. If you are doing this, expect a ban anytime in the future. It is okay to sell ads or gain the link. But doing it on direct advertisement of your page rank is a way to get on search engines bad side.
Doorways. This is similar to cloaking pages. The common practice of a page loaded with choice keyword ads aimed at redirecting visitors to another user-friendly page is a big issue among search engines. There are many seo firms offering this kind of service. Now that you know what this is, try to avoid it at all costs.
Multiple domains having the same content. In case you are not aware of it, search engines look at domains IPs, registry dates and many others. Having multiple domains having the same exact content is not something you can hide from them. The same goes with content multiplied numerous times on separate pages, sub domains and forwarding multiple domains to the same content.
Many of the above techniques apply to most search engines and are not entirely for Google only. By having a mind set that you are building your Adsense together with your pages for the human users and not for bots, you can rest assured of great things for your ads and sites.
My other blog;
1. Across this bridge
4. When life become a book
5. Read Between the Lines
6. The Sleeping Turtle Art Gallery
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