SEO hidden link means that the website is embedded with hidden links redirecting to another website to improve the other website’s rankings by search engines.
If a hidden link is detected on a server, and the hidden link was not set up by the server owner, it means the server has been compromised.
As the website homepages of most users are inserted with JS code containing
jquery.min.php, check the HTML source code for your homepage and clear malicious links.
In addition, you can use Alibaba Cloud Security Server Guard to clear webshell.