Moz Builds That Spam Identification Tool In Site Explorer

Mar 31, 2015 - 8:38 am 25 by
Filed Under SEO Tools

taekwondo fighterAlmost two years ago, Rand Fishkin from Moz posted about looking into building a spam detection tool as a way for sites to figure out (1) who not to get links from, (2) remove bad links from and (3) see how Google may determine if a site is spammy and why.

The industry was torn, thinking this may be just Rand's way of doing automated "outing" but the truth is, a tool like this can be useful to link forensics (I used that word) SEOs.

Rand announced the new paid tool on the Moz blog yesterday. Here is a quick video of how it works:

In short, it looks at just 17 different factors and if a site is flagged with some or many, it will score you as more and more spammy as more flags get hit.

Here are the flags Moz uses:

  • Low mozTrust to mozRank ratio: Sites with low mozTrust compared to mozRank are likely 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.
  • Site link diversity is low: If a large percentage of links to a site are from a few domains it is likely to be spam.
  • Ratio of followed to nofollowed subdomains/domains (two separate flags): Sites with a large number of followed links relative to nofollowed 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.
  • Thin content: If a site has a relatively small ratio of content to navigation chrome 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.
  • Large number of external links: A site with a large number of external links may look spammy.
  • Low number of internal links: Real sites tend to link heavily to themselves via internal navigation and a relative lack of internal links is a spam signal.
  • Anchor text-heavy page: Sites with a lot of anchor text are more likely to be spam then those with more content and less links.
  • External links in navigation: Spam sites may hide external links in the sidebar or footer.
  • No contact info: Real sites prominently display their social and other contact information.
  • Low number of pages found: A site with only one or a few pages is more likely to be spam than one with many pages.
  • TLD correlated with spam domains: Certain TLDs are more spammy than others (e.g. pw).
  • Domain name length: A long subdomain name like "bycheapviagra.freeshipping.onlinepharmacy.com" may indicate keyword stuffing.
  • Domain name contains numerals: domain names with numerals may be automatically generated and therefore spam.

What do you think? I have yet to play directly with the tool.

Forum discussion at Twitter.

Image credit to BigStockPhoto for taekwondo fighter

 

Popular Categories

The Pulse of the search community

Follow

Search Video Recaps

 
Google Core Update Coming, Ranking Volatility, Bye Search Notes, AI Overviews, Ads & More - YouTube
Video Details More Videos Subscribe to Videos

Most Recent Articles

Search Forum Recap

Daily Search Forum Recap: July 24, 2024

Jul 24, 2024 - 10:00 am
Google Updates

Google Search Ranking Algorithm Volatility - July 23rd

Jul 24, 2024 - 7:51 am
Google Search Engine Optimization

SEO Poll: 54% Of SEOs Saw Positive Effects From Google Updates

Jul 24, 2024 - 7:41 am
Google Ads

New Google Local Service Ads Budget Options

Jul 24, 2024 - 7:31 am
Google News

Google Ad Revenue Up 11% - $64.62 Billion In Ad Revenue

Jul 24, 2024 - 7:21 am
Google

Google Outlines Videos In Search Results

Jul 24, 2024 - 7:11 am
Previous Story: Google News Updates Inclusion Process: Rejection Notices Bug