Bad practice SEO

Content spam

This involves the over use of keywords stuffed in to content, hidden or invisible text, meta tag stuffing, gate way pages, scraper sites, and Article spinning

Link spam

 Link Building Software, Link farms, Hidden links, 'Sybil attack', Spam blogs, Page hijacking, Buying expired domains, Cookie stuffing, Spam in blogs, Comment spam, Wiki spam, Referrer log spamming

Clocking

This involves presenting a different page to a search engine spider that is different from what is seen by a human.

 

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