Patent ID: 8307276

Claim:
A method of verifying content, the method including the steps of: receiving, at an indexing system, a first copy of a webpage from a hosting server; processing the first copy, at the indexing system, to obtain first indicating data including one or more properties of the first copy; receiving second indicating data from a first client terminal, the second indicating data obtained by processing, at the first client terminal, a second copy of the webpage, the second copy received by the first client terminal from the hosting server, the second indicating data including one or more properties of the second copy; comparing, at the indexing system, the first indicating data with the second indicating data; determining that the first copy is verified when a number of non-matching properties between the first indicating data and the second indicating data does not exceed a threshold number; determining that the first copy is not verified when the number of non-matching properties between the first indicating data and the second indicating data exceeds a threshold number; upon determining that the first copy is not verified, receiving third indicating data from a second client terminal, the third indicating data obtained by processing, at the second client terminal, a third copy of the webpage, the third copy received at the second client terminal from the hosting server, the third indicating data including one or more properties of the third copy of the webpage; determining whether the first copy of the webpage received by the indexing system is verified or not verified based on a comparison between the first indicating data and the third indicating data; and upon determining that the first copy is verified, indexing content of the webpage.