Identification of software robot activity

1. A system comprising:

at least one hardware processor; and

a non-transitory computer-readable storage medium having program instructions embodied therewith, the program instructions executable by said at least one hardware processor to, automatically:

receive, from each of a plurality of web clients, a request to receive data, wherein said data comprises (i) advertisement copy and (ii) a landing page URL (Uniform Resource Locator) associated with said advertisement copy;

determine, for each of said web clients, a client identifier associated with said web client;

automatically select a subset of said web clients;

send said data only to said subset of said web clients; and

identify a web client not included in said subset of web clients as a software robot, when a received redirection request to said landing page URL is associated with a client identifier associated with said web client.

2. The system according to claim 1 , wherein at least some of said web client identifiers are cookies.

3. The system according to claim 1 , wherein at least some of the web client identifiers are values computed from one or more cookie attributes.

4. The system according to claim 1 , wherein said program instructions are further executable to store each of said client identifiers associated with said web clients identified as software robots.

5. The system according to claim 4 , wherein said program instructions are further executable to generate a report comprising redirection activity associated with said web clients, wherein said report does not include said redirection activity associated with said identified software robots.

6. The system according to claim 4 , wherein said program instructions are further executable to compare a client identifier of a new web client to said stored client identifiers, to determine whether said new web client is a software robot.

7. The system according to claim 1 , wherein said selecting is based, at least in part, on a modulo operation applied to each respective web client identifier, wherein the modulo operation produces two different results.

8. A method for identifying software robots, the method comprising using at least one hardware processor for:

receiving, from each of a plurality of web clients, a request to receive data, wherein said data comprises (i) advertisement copy and (ii) a landing page URL (Uniform Resource Locator) associated with said advertisement copy;

determining, for each of said web clients, a client identifier associated with said web client;

automatically selecting a subset of said web clients;

sending said data only to said subset of said web clients; and

identifying a web client not included in said subset of web clients as a software robot, when a received redirection request to said landing page URL is associated with a client identifier associated with said web client.

9. The method according to claim 8 , wherein at least some of said web client identifiers are cookies.

10. The method according to claim 8 , wherein at least some of the web client identifiers are values computed from one or more cookie attributes.

11. The method according to claim 8 , further comprising storing each of said client identifiers associated with said web clients identified as software robots.

12. The method according to claim 11 , further comprising generating a report comprising redirection activity associated with said web clients, wherein said report does not include said redirection activity associated with said identified software robots.

13. The method according to claim 11 , further comprising comparing a client identifier of a new web client to said stored client identifiers, to determine whether said new web client is a software robot.

14. The method according to claim 8 , wherein said selecting is based, at least in part, on a modulo operation applied to each respective web client identifier, wherein the modulo operation produces two different results.

15. A computer program product comprising a non-transitory computer-readable storage medium having program instructions embodied therewith, the program instructions executable by at least one hardware processor to, automatically:

receive, from each of a plurality of web clients, a request to receive data, wherein said data comprises (i) advertisement copy and (ii) a landing page URL (Uniform Resource Locator) associated with said advertisement copy;

determine, for each of said web clients, a client identifier associated with said web client;

automatically select a subset of said web clients;

send said data only to said subset of said web clients; and

identify a web client not included in said subset of web clients as a software robot, when a received redirection request to said landing page URL is associated with a client identifier associated with said web client.

16. The computer program product according to claim 15 , wherein at least some of said web client identifiers are cookies.

17. The computer program product according to claim 15 , wherein said program instructions are further executable to store each of said client identifiers associated with said web clients identified as software robots.

18. The computer program product according to claim 17 , wherein said program instructions are further executable to generate a report comprising redirection activity associated with said web clients, wherein said report does not include said redirection activity associated with said identified software robots.

19. The computer program product according to claim 17 , wherein said program instructions are further executable to compare a client identifier of a new web client to said stored client identifiers, to determine whether said new web client is a software robot.

20. The computer program product according to claim 15 , wherein said selecting is based, at least in part, on a modulo operation applied to each respective web client identifier, wherein the modulo operation produces two different results.