Google Penguin is an algorithm which detects solely link spam and thoroughly investigate and take decisions accordingly.
Few years ago, link building was so easy, u have just just to make backlinks without any worries of being penalized as Google Penguin didn’t exist back then.
If you want to start backlinking of your website then your first priority will be how to prevent from google penguin?
Pattern of Links
Web Spam Team gives you recommendations to remove bad backlinks and follow instructions then you send reconsideration request. If it’s according to Google search quality, then they will remove ban. This is how Google Penguin detects bad links and how to unban your website by communicating with Google Search Quality team
Everyone say “Do-follow” links are better but it alert Google about pattern of links as how come all links be do-follow naturally so in a result, Google will de-index and penalize your site.
Sidebar links, site-wide links, menu-bar links, footer links and contextual links leave some pattern and Google Penguin labels those links. For example, footer links may labeled as red and contextual links as green.
Did you know? Search Engine Algorithms use backlinks as strong ranking signal.
What’s Good about Google Penguin
Penguin Ignores bad links automatically means if you have spam links then Penguin algorithm ignores those bad links and don’t give weightage of those links hence it won’t affect your ranking rather positive or negative.
So, now you will have to find Good quality backlinks if you want your rankings last longer in Search Engine Result Pages.