Detecting Google Search Layers with Advanced Search Operators

The way Google presents search results has always been and always will be a bit of an enigma to all of us. Every now and then, however, a snippet of information slips through the cracks giving us a chance to take a look at its search anatomy. In the example below, we can see a search for “greater than 100 years old”, or “100.. years old“. There are four exceptions in this particular example where the operator did not work as expected:

  1. Wikipedia
  2. News Results
  3. PDF Documents
  4. Movie Database
News Results were not a surprise, but the other three are. This perhaps tells us that Google treats, stores and processes different types of resources in different ways.


This is just a preliminary test and we’ll continue our investigation to get more clarity, especially around Wikipedia entries.

Dan Petrovic, the managing director of DEJAN, is Australia’s best-known name in the field of search engine optimisation. Dan is a web author, innovator and a highly regarded search industry event speaker.

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