For BrowserBot-based tests (Page Load and Transaction tests) the Waterfall data and other metrics can be substantially different from those produced using HTTP 1.1 (or HTTP 1.0 if targeting very old servers or some proxies). For example, HTTP 2.0 waterfalls have fewer objects with Connect time (the time to set up a TCP connection). HTTP 2.0 will send multiple requests over a single TCP connection without waiting for responses from the initial requests (solving the "head of line blocking problem" of HTTP 1.1 and earlier versions). Thus, fewer TCP connections are created. Similarly, for connections which use SSL/TLS, fewer objects will have SSL time.