This will help you prevent wasting a lot of time. It does not mean these backlinks are totally useless. Every backlink is useful, but if you have limited time it is wiser to focus on more better strategies to get backlinks.
Remember that it is better that wehen you get a link, you do not change the anchor text. It is also better if you do not change the link that the anchor text points to. If you get a link with a specific anchor text, pointing to a specific page on your website, do not alter anything.
First of all classified sites are the type of websites you should avoid.
You get links, but your ads have to be renewed every seven, thirty or ninety days. If you do not renew your backlinks are no longer there. Just like I said, when getting backlinks, you want them static, ever lasting and not sometimes your link is up, and other times it is removed.
But what is the reason behind this, you may ask yourself.
A backlinks is good for your website, because it means your website is useful. Now if the specific website removes your link, then it is no longer useful.
Plus most of the time, classified websites do not link directly to your website.
The other type of website you should avoid are FFA sites.
FFA websites, just like classified websites require that you renew your ads, or the backlink is gone. You have to renew, each time using the same anchor text for best results. That is
the title of the FFA ad.