Webmasters regularly make use of redirects with the intention of assisting to forward visitors from one page to another; this aspect isn’t a strange one but rather normal part of how the web operates let alone valuable if properly used.
Meanwhile, some redirects are structured in such a way that they influence or mislead search engines or show different content to human users rather than to search engines. But thanks to Google for introducing quality guidelines which strictly forbid such kind of redirects.
A good example is a situation whereby a desktop user might receive a normal page whereas hackers might redirect all mobile users to a completely different spam domain. In order to save webmasters to better recognize such challenging redirects, Google’s Search Quality Team updated its quality guidelines for sneaky redirects with examples that demonstrate redirect-related violations.
The team has also made efforts to update the hacked content guidelines so as to include redirects on compromised websites.
Do you feel like your site has been compromised? If so, make use of the instructions in order to identify the issues on your site and fix them.
Aaseesh Marina who is part of Google Webmaster’s Search Quality Team said, “As with any violation of our quality guidelines, we may take manual action, including removal from our index, in order to maintain the quality of the search results.”
Source: https://googlewebmastercentral.blogspot.com/2014/04/webmaster-guidelines-for-sneaky.html