To ensure that your recording accurately captures HTTP traffic, remove temporary files from the web browser's cache before you record a test.
When recording, wait for each page to load completely. This wait does not affect performance results, because you can remove extra think time when you play back the test.
When recording, you can enter the IP address of the website to connect to instead of entering the host name. When you play back the test, however, make sure that the IP address can resolve to a host name. Typically, this resolution occurs via a reverse DNS lookup.
To resolve the IP address, map each IP address to a host name in the /etc/hosts file. On a Windows system, the file is typically stored in C:\windows\system32\drivers\etc\hosts.
If an address cannot be resolved, your test shows a slower connection time. This time might be delayed by as much as 8 seconds, depending on the network configuration of the computer.