Google’s actions against “overoptimised” sites have been intensified and it seems that the recent updates are able to detect various links-related overoptimisation violations that can result in short or long-term positional drops, with or without warnings. Even though Google announced the Penguin update on the 24th if April 2012, changes on Google’s link evaluation system have been noticeable several weeks before the public announcement.
It appears that in some cases Google has been overzealous, hitting (temporarily) even websites with rather natural link profiles. In other cases, Google admitted algorithmic classification mistakes, publishing apologetic messages like this one Matt Cutts posted on Google+.
According to Patrick Altoft (branded3) the sites that have received unnatural links notifications fall under five main categories, and they are not just the ones participating in link exchanges or other types of link networks. Rand made a Whiteboard Friday video about 6 changes every SEO should make before the overoptimisation penalty hits. Now that Google has rolled out the Penguin update against “black web spam,” making sure that your website’s backlink profile does not violate Google’s quality guidelines is quite essential, especially if your traffic has gone down.
This is a follow up to the post ‘How to Monitor Your Website For Link Equity Loss’, which can be used to identify backlinks from low quality or penalised/deindexed websites. However, this post intends to cover the following links related overoptimisation cases:
A) Excessive Link Acquisition
B) Site-wide links detection
C) Unnatural Anchor Text Distribution
D) Unnatural Spread of Links Authority
A. Excessive Link Acquisition Check
Acquiring a high number of links over a short period of time has never been a good practice and webmasters need to keep an eye on the levels of acquired links, especially these days that negative SEO seems to become more of an
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