How to use subdomains of a website in Reality
This page shows you how to spread your Reality traffic over many subdomains of one website. A subdomain is a name under a main domain, for example blog.yahoo.com under yahoo.com. When your traffic uses many names instead of one, it is harder for the filtering system to notice your server.
Before you start
- You already have a Reality domain in your panel. If not, first follow How to use Reality on HiddifyManager.
Steps
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Find the subdomains of the website you use for Reality. You can use subdomainfinder.c99.nl: search for the website's name. For example, here are all the subdomains of speedtest.net.
You can also use crt.sh. For example, here are the subdomains of mozilla.org, the Firefox website.
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In the panel's sidebar, under Settings, click Domains and open your Reality domain.
- In the Server names field, enter the subdomains, separated by commas. For example:
sub1.example.com,sub2.example.com,sub3.example.com. Use only subdomains that really open as websites. - Click Save, then apply the changes (in Settings → Actions, click Apply now).
What happens next
Each time a user's subscription link updates, one of these subdomains is chosen as the address. This splits the traffic over the subdomains. For example, if a user's app updates the subscription every hour, it uses a different subdomain each hour. This makes it less likely that the filtering system detects your server.