Recently, when visiting the website, a string of extra characters was often automatically appended to the URL, causing the site to load abnormally. A quick search online revealed that this was caused by the server using Yunsuo security software. Below we’ll explain how to fix it.
It came to mind that the website had been under attack some time ago, and I adjusted the server’s CC protection level. The higher verification level led to this situation. Below is the Yunsuo 3 settings interface:
As shown above, change the original CC protection level from Medium to Low (or disable browser behavior authentication), and the website will return to normal after reopening.