How can be find out what server-side language is used in website ?

Question

I know there is some way to guess server-side program language .
is there the definitive answer here ?

Answer 1

not on google server !
just website
(physical server) is other world :)

Answer 2

Google server-side language for example
how do you know?

Answer 3

How about Code Signing or Digital signature (just from security point of view if I correctly understood your question)?

Answer 4

i found out for me the best web server apache + php and mysql languages

Answer 5

firstly find out web server u want and then server-side language that is suitable for coding on definite server you choose

Answer 6

hack that server and check haha

Answer 7

better to ask how many server side languages are used by google

Answer 8

i understood