Methods and apparatus to distinguish between parent and child webpage accesses and/or browser tabs in focus

1. A method to identify a window in a browser, the method comprising:

identifying, by executing a first instruction with a processor, a first HTTP call associated with the browser on a monitored device;

identifying, by executing a second instruction with the processor, a second HTTP call, the first and second HTTP calls occurring between consecutive user actions on the monitored device;

in response to identifying at least one of the first HTTP call or the second HTTP call, requesting, by executing a third instruction with the processor, Page Info data from the browser; and

determining, by executing a fourth instruction with the processor, that (1) the first HTTP call is a parent call if a first universal resource locator (URL) of the first HTTP call matches a second universal resource locator of the Page Info data of the browser, and (2) that the second HTTP call is a child call based on a detected status of the browser.

2. The method as defined in claim 1 , wherein the detected status of the browser is an application focus status.

3. The method as defined in claim 1 , wherein the detected status of the browser is a status of an active tab of the browser.

4. The method as defined in claim 1 , further including monitoring user interaction associated with the monitored device.

5. A tangible machine-readable storage medium comprising instructions which, when executed, cause a machine to at least:

identify a first HTTP call associated with a browser on a monitored device;

identify a second HTTP call, the first and second HTTP calls occurring between consecutive user actions on the monitored device;

in response to identifying at least one of the first HTTP call or the second HTTP call, obtain Page Info data from the browser; and

determine that (1) the first HTTP call is a parent call if a first universal resource locator of the first HTTP call matches a second universal resource locator (URL) of the Page Info data of the browser, and (2) that the second HTTP call is a child call based on a detected status of the browser.

6. The tangible machine-readable storage medium as defined in claim 5 wherein the detected status of the browser is an application focus status.

7. The tangible machine-readable storage medium as defined in claim 5 wherein the detected status of the browser is a status of an active tab of the browser.

8. The tangible machine-readable storage medium as defined in claim 5 wherein the instructions, when executed, cause the machine to monitor user interaction associated with the monitored device.

9. A method to identify a window in a browser, the method comprising:

identifying, using a processor, a first HTTP call associated with the browser on a monitored device;

identifying, using the processor, a second HTTP call, the first and second HTTP calls occurring between consecutive user actions on the monitored device;

determining, using the processor, that (1) the first HTTP call is a parent call if a first universal resource locator (URL) of the first HTTP call matches a second universal resource locator of Page Info data of the browser, and (2) that the second HTTP call is a child call based on a detected status of the browser; and

crediting the first URL as having been presented to the user of the monitored device when the first HTTP call is the parent call.

10. A method to identify a window in a browser the method comprising:

identifying, using a processor, a first HTTP call associated with the browser on a monitored device;

identifying, using the processor, a second HTTP call, the first and second HTTP calls occurring between consecutive user actions on the monitored device;

determining, using the processor, that (1) the first HTTP call is a parent call if a first universal resource locator (URL) of the first HTTP call matches a second universal resource locator of Page Info data of the browser, and (2) that the second HTTP call is a child call based on a detected status of the browser; and

crediting the first URL with an exposure time corresponding to a time difference between a first timestamp of the first HTTP call and a second timestamp of a third HTTP call, wherein the first HTTP call is a first parent call and the third HTTP call is a second parent call.

11. A tangible machine-readable storage medium comprising instructions which, when executed, cause a machine to at least:

identify a first HTTP call associated with a browser on a monitored device;

identify a second HTTP call, the first and second HTTP calls occurring between consecutive user actions on the monitored device; and

determine that (1) the first HTTP call is a parent call if a first universal resource locator of the first HTTP call matches a second universal resource locator (URL) of Page Info data of the browser, and (2) that the second HTTP call is a child call based on a detected status of the browser; and

credit the first URL as having been presented to the user of the monitored device when the first HTTP call is the parent call.

12. A tangible machine-readable storage medium comprising instructions which, when executed, cause a machine to at least:

identify a first HTTP call associated with a browser on a monitored device;

identify a second HTTP call, the first and second HTTP calls occurring between consecutive user actions on the monitored device; and

determine that (1) the first HTTP call is a parent call if a first universal resource locator of the first HTTP call matches a second universal resource locator (URL) of Page Info data of the browser, and (2) that the second HTTP call is a child call based on a detected status of the browser; and

credit the first URL with an exposure time corresponding to a time difference between a first timestamp of the first HTTP call and a second timestamp of a third HTTP call, wherein the first HTTP call is a first parent call and the third HTTP call is a second parent call.