Spam Identification Factors

Here some points of spammy links:

·         Try to getting link from low quality website consider to be spam.

·         Large site with few links: Large sites with many pages tend to also have many links and large sites without a corresponding large number of links are likely to be spam.

·         If a large percentage of links to a site are from a few domains it is likely to be spam.

·         Ratio of followed to no-followed subdomains/domains (two separate flags): Sites with a large number of followed links relative to no-followed are likely to be spam.

·         Small proportion of branded links (anchor text): Organically occurring links tend to contain a disproportionate amount of banded keywords. If a site does not have a lot of branded anchor text, it's a signal the links are not organic.

·         If a site has a relatively small ratio of it's likely to be spam.

·         Site mark-up is abnormally small: Non-spam sites tend to invest in rich user experiences with CSS, JavaScript and extensive mark-up. Accordingly, a large ratio of text to mark-up is a spam signal.

·         A site with a large number of external links may look spammy.

·         Real sites tend to link heavily to themselves via internal navigation and a relative lack of internal links is a spam signal.

·         Sites with a lot of anchor text are more likely to be spam then those with more content and less links.

·         Spam sites may hide external links in the sidebar or footer.

·         Real sites prominently display their social and other contact information.

·         A site with only one or a few pages is more likely to be spam than one with many pages.

·         Certain TLDs are more spammy than others.

·         Domain names with numerals may be automatically generated and therefore spam.

    

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