Penalty inflicted by Google on the new sites, which prevents them to benefit of a quality positioning on terms with strong competition during a period of quarantine, that can last several months. The concerned sites have no problem of indexation but they are seldom visible in the first pages of research results.

Identical copy of a Website. This oblique technique, close to spamdexing, permits a high presence on research motors. The most part of the actual motors succeed in recognizing and in moving aside sites mirrors.

Excessive technique consisting in deceiving robots to acquire a better positioning. For instance, some Webmaster include white key words on a white bottom so that they are invisible for the internauts but visible by robots. This type of practice is mostly short-circuited or even punished by the modern robots, which undertake a black-list of the guilty site.

See “Indexation Robot”.