Abstract: A website-performance testing method is applicable to test multiple websites at a time. It includes steps of: setting parameters and schedule of the testing task; starting tests according to the system clock; fetching website information from the task setting; connecting to the task website and performing the test; and recording and displaying the real-time test results. It tests multiple websites at a time with the same criteria. It meets the requirements of daily testing of website speed and providing information for the website maintenance personnel or decision-makers.

Abstract: A remote instruction system and method includes an exercise editing module for instructor ends to edit exercises in an exercise database and a student learning module to access the exercises in the exercise database and display the exercises at student ends. Students learn and test based on the exercises. An error statistics module is provided to mark questioned exercises based on statistics results. A question marking module receives the questioned exercises marked by students, and a question answering module is linked to the instructor ends and student ends to implement teaching activities and enable the instructor to teach the questioned exercises and answer student's questions.