· Higher long-term cost. Speaking clearly: the SEM only works while you pay. Although over time you can optimize your campaigns and reduce costs per click, you will have to continue paying for each of the visits you get.
· High level of competition. The Search Engine Marketing has become popular and there are many companies that compete to position themselves in the same keywords. This competition causes costs to rise and sometimes it can be difficult to get a good ROI.
. It's interruptive. Unlike other solutions such as native advertising, the SEM means "invading" the user's space with content that it hasn’t previously required. In fact, if the user you are targeting uses an ad blocker, they may not see your ads.