Method for measuring initial screen time of webpage

Abstract

The invention discloses a method based on rendering engine events for calculating the initial screen time of a webpage. The method comprises the following steps of capturing a rendering event of the rendering engine of a browser through a special method, obtaining current state information of the webpage in the rendering event through a DOM (document object model) method, if the webpage state is not smaller than a special state, proceeding to the next step, and if the webpage state is smaller than a special state, returning to capturing; obtaining a webpage actual height in the browser rendering events through the DOM method, if the webpage actual height is not smaller than the height of an initial screen area, proceeding to the next step, and if the webpage actual height is smaller than the height of the initial screen area, returning to the capturing; obtaining the range of a current rendering area in the rendering events of the browser, if the current rendering area is within an initial screen range, proceeding to the next step, and if the current rendering area is not within the initial screen range, returning to the capturing; and obtaining a screen image of the current webpage and judging whether the initial screen of the webpage is filled up, if not, continuing to monitor the rendering events of the rendering engine, and if so, recording the numerical value of the initial screen time and stopping capturing the rendering events of the rendering engine of the browser.

Description

technical field [0001] The invention belongs to the field of automated testing, and in particular, the invention relates to a method for measuring the first screen time of a webpage, which can be applied to a browser rendering engine, automated testing of page loading performance or performance monitoring. Background technique [0002] The user's access to the website is realized based on the webpage obtained by the browser. Usually, after a website page is fully loaded, the total page height ranges from one screen to more than a dozen screens, and the total loading time is much longer than the loading time of the first screen content. From the perspective of user experience, the first screen time is an important factor in the user's experience of a website's loading performance. When the page fills the above-the-fold area, users can see the content and perform operations such as clicking and scrolling without having to wait until all the content is loaded. Therefore, the ...

AI Technical Summary

Problems solved by technology

[0006] The above method has the following disadvantages: (1) This method is triggered based on a timer. The highest precision of the timer on the windows system is 55ms, and there is a certain error in the measurement accuracy; (2) The operation of obtaining the screen image consumes memory Compared with the CPU, high-frequency acquisition of screen images will affect the performance of the browser process on machines with relatively low hardware configuration, that is, the introduction of monitoring will lead to a large deviation between the measurement results and the actual; (3) In addition, this method does not consider the page Influenced by the background color and user-defined windows appearance color, the measurement results on some special pages may be inconsistent with the user's naked eye observation results

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