What is the meaning of defer parsing?
When the expert adds an HTML script element with the defer of Async attribute, you will advise the browser to download the file with the same page in the parsed form. With the file defer, one can e execute as soon as the page becomes parsed entirely. In contrast, the Async attribute with the asynchronous operation will execute the file, and you can download it with the same. The exact time to page parse with the Async will become slightly higher, but a browser will briefly stop HTML parsing from executing the files.
There is a necessary standard to understand that there is Document Object Model, and you can frequently refer as DOM. It represents the entire document, like the XML file and the HTML page, as the perfect single object. There are essential elements such as the head, headers, and body, and one can consider the branch.
How does defer parsing use a plugin in WordPress
It will help if you are mindful of the exact fact and if the wrong configuration setting will cause problems with the website design. For example, the contact forms will display the correct form unless you choose the proper configuration, and the settings seven exclude the contact form with files from the different optimization.