The website EqWorld has been tested using the powerful search engine Google for the rating of keywords that appear on EqWorld's pages. Listed below are the keywords tested, the respective highest places of EqWorld's pages in Google search results, and the total number of web pages found by Google for the query. The testing was carried out on 12 February 2007.

• mathematical equations 1 and 2 of 13,800,000
• mathematical books 4 of 11,000,000
• algebraic equations 4 of 2,200,000
• mathematical physics equations 2 and 3 of 4,100,000
• exact solutions 5 of 18,600,000
• equations exact solutions 1 and 2 of 2,080,000
• differential equations 156 of 19,500,000
• differential equations exact solutions 1 and 2 of 1,260,000
• ordinary differential equations 27 of 1,460,000
• partial differential equations 10 of 2,590,000
• partial differential equations linear 3 and 4 of 1,410,000
• partial differential equations nonlinear 4 and 5 of 1,240,000
• differential equations books 21 of 1,600,000
• differential equations systems 29 of 11,700,000
• hyperbolic equations 5 and 6 of 1,250,000
• elliptic equations 7 and 8 of 1,370,000
• parabolic equations 4 of 1,300,000
• integral equations 3 and 4 of 2,490,000
• integral equations linear 1 and 2 of 1,760,000
• integral equations nonlinear 2 and 3 of 1,290,000
• integral equations books 5 of 1,310,000
• functional equations 3 and 4 of 2,680,000
• functional equations books 2 of 1,340,000
• functional differential equations 2 of 1,550,000
• difference equations 33 of 3,240,000
• integrals 5 of 9,310,000
• integral transforms 3 of 1,800,000
• special functions 10 of 74,500,000
• heat equation 15 of 2,220,000
• diffusion equation 29 of 4,510,000
• Laplace equation 6 of 1,060,000
• boundary layer equations 8 of 1,440,000
• Klein-Gordon equation 10 of 342,000
• Korteweg-de Vries equation 4 and 5 of 249,000
• Schrodinger equation 20 of 814,000
• Bessel equation 11 of 1,020,000
• Abel equation 3 and 4 of 627,000
• Mathieu equation 3 of 538,000
• Riccati equation 4 of 543,000
• Legendre equation 4 of 752,000
• Volterra integral equations 4 of 362,000
• Fredholm integral equations 7 of 436,000
• Cauchy equation 9 of 937,000
• Monge-Ampere equation 8 of 62,100
• Ermakov equation 1 and 2 of 45,200
• Emden-Fowler equation 4 of 18,600
• method separation of variables 12 of 1,250,000
• mathematical humor 5 of 1,190,000