Has Google lately send you caution in relation to “unnatural” or “artificial” links pointing to your website? According to Google, this attack is nothing new but alternative from poor quality links being considered as “slightly distrusted” to gain the opportunity of speaking in relation to this penalty.
Caution Advisory Made Public
Many people are receiving messages from Google in relation to link violation. Given below is an instance of these messages being sent out by the search engine.

Dear site owner or webmaster of ….
We’ve detected that some of your site’s pages may be using techniques that are outside Google’s Webmaster Guidelines.
Specifically, look for possibly artificial or unnatural links pointing to your site that could be intended to manipulate PageRank. Examples of unnatural linking could include buying links to pass PageRank or participating in link schemes.
We encourage you to make changes to your site so that it meets our quality guidelines. Once you’ve made these changes, please submit your site for reconsideration in Google’s search results.
If you find unnatural links to your site that you are unable to control or remove, please provide the details in your reconsideration request.
If you have any questions about how to resolve this issue, please see our Webmaster Help Forum for support.
Sincerely,
Google Search Quality Team
Links are no More Slightly Doubtful
It is not new that Google has come down heavily on many link/blog networks. A suspicion might arise that links these messages from the search engine are its result. But as a matter of fact, this is not the reality. Google is after reporting penalties related to bad link matters more now as compared to past.
This is the statement from Google’s spokesperson:
The majority of the increase in messages to webmasters is not due to messages about links. Rather, Google recently started sending messages to sites even for egregious or “blackhat” violations of our quality guidelines. The vast majority of the increase in messages is thus due to expanding the types of messages we send, not because of more warnings about links.
It is true that actions on link networks have been more visible lately, but there’s an important disclaimer to that. Google has been able to trace and take action on many types of link networks; we recently decided to make that action more visible. In the past, some links might have been silently distrusted or might not have carried as much weight. More recently, we’ve been surfacing the fact that those links aren’t helping to improve ranking or indexing.
With the start of this year, Google is sending out more messages through Google Webmaster Tools.