In this era, if anyone received any warning through the webmaster mechanism then they can be specific about the website being hit with the penalty. In addition to this, the absence of the official warning, a telltale sign of the Google penalty recovery services include:
Drop in a site wide section or traffic
Drop in ranking
If someone suspects a penalty then it has to take attention as soon as possible. To hire dedicated resources means to obtain the good tool, staff for the achievement of the company goal.