Terror.

That’s the feeling an SEO gets when it looks like their site has been banned by the search engines. Even if there is no real reason for a search engine to ban your site, suddenly not seeing your site ranking for a keyword can touch off a sense of panic that will get your heart racing.

Normally the panic is unfounded. Your site may have just slipped a few rankings or could have been indexed incorrectly for some reason.

It has happened to me.

Google bot decided to swing by InsureMe.com right in the middle of a site update once, and our site was suddenly cached as a blank screen. When I checked our rankings the next morning, we had dropped magnificently. It was a disaster.

But the good news was, we weren’t banned or penalized. After some quick checks I realized the issue and we were able to react accordingly. After a couple days Google reindexed the site in its correct form, and our site quickly made it back to its original positions in the search results.

Knowing how to check and see if your site has been banned is a fundamental skill for anyone who cares about their site’s search rankings. Mark Jackson at Search Engine Watch has written up a nice article that explains how to check and see if your domain has been banned by Google, Yahoo! or MSN – and how to go about getting it un-banned if it is.

Check out Mark's post, How to Tell Your Domain is Banned in a Search Engine.