Not recommended (and sometimes risky): outdated link building techniques
Links are the most important factor in Google’s ranking algorithms. That’s why so many people tried to manipulate the links that point to their websites in the past.
This used to work until Google found out how to detect manipulated links. Websites that used these links were penalized and they lost their rankings. Building links that way can still work for some keywords, but it is very risky. In addition, the results do not last.
In general, Google’s latest ranking algorithms simply ignore spam links. If your website has very many of these spam links, your website still can get a manual penalty. For that reason, you should avoid these outdated link building techniques:
• Blog comment spam.
• Forum spam and forum signature spam.
• Paid links that do not use the rel=nofollow attribute (for example site-wide footer links).
• Private blog networks (a network of small websites that are just used for link building).
• Link directories that link to all kind of websites.
• Unrelated article directories and low quality guest-posts.
All of these methods seem easy. Unfortunately, all of them are risky and they can have a negative influence on your search engine rankings.
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