進行 Upstream Bandwidth Test ( 連結至ChangeIp.com) ，瞭解您目前的網路連線速度。
進入頁面後，您會看到兩個大項： Start an upstream speed test. 與 Your current internet connection information ，後者告知您目前的網路連線資訊，包括 IP 位址、 Organization （提供連線機構）、所處地址（如：台灣）等；前者則將測試您的網路連度速度，按下「 Start testing process 」，將會出現「 Please wait while we process the first part of the test... 」字樣，等待後， Browser preloading has completed. 按下下方的「 Continue to Step 2 」按鈕，「 Continue to Step 2 」將會顯示為「 Please Wait 」，繼續完成連線速度測試，請等待最多 30 秒的時間， During this part of the test your browser is uploading a large amount of data to the systems so that this program may test the timing.
Your test results are in!
Your upstream speed that we tested is: 231.91kbps
Your browser was able to upload 534,315 bytes in 18 seconds. Please note that this test is not conclusive, but should be +/- 15% of your actual upload speed. This test was performed between your browser and our main data center in San Diego , CA . Many factors can affect the speed of your connection as reported by this test, including distance from the Level3 network, existing traffic on your internet connection, current cpu usage, as well as the overall congestion on the internet.
倘若您曾做過連線速度測試，頁面也會顯示您上一次的 bandwidth testing results ，供您做參考比對。