The HTTP Request I used in my performance testing uses JMeter's XPath Extractor in order to get the response data of the HTTP Request.

When the test ran, the response data for the same HTTP request is different.

What could cause this to happen?

  • Hi Khadija, could you please edit your question to add more details? We would need to know the actual response and the response you saved in JMeter as well as the value of your XPath Extractor
    – Kate Paulk
    Jan 20, 2017 at 13:22

1 Answer 1


There can be many different reasons, it is hard to guess without seeing your Test Plan and these 2 responses.

  1. Something application-specific, for instance if you are testing news portal the response will always be different as some news expire and new news are being constantly added
  2. Something is wrong with your JMeter test, i.e. missing HTTP Cookie Manager, missing or improperly working correlation, etc.
  3. An application under test issue.

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