Browsing Experience Security Check: An online check tool from Cloudflare can check the capabilities of the browser you use in certain functions for the privacy and your safety.
For too many users of the Internet, privacy is extremely important. Although the majority seem to be unconcerned, some are trying to implement the safeguards needed to prevent or at least limit companies and government agencies from learning how they use the Internet.
Of course this depends to a large extent on the method you use to connect to the various websites-services on the Internet, such as a browser or a media client, but also your system configuration.
The use of HTTPS on the Internet has ensured that many of the data transmitted between your browser and Internet sites are encrypted. The new ones technologies, As the ax dns or Cloudflare's Encrypted Server Name Indication (SNI) are designed to address leaks that can occur in DNS queries.
The Online Browsing Experience Security Check tool checks the features of your browser for security and privacy features.
The test can be done very easily. Sign in to the test page using your browser, and click Check My Browser.
The page will check if Secure DNS, DNSSEC, TLS 1.3 and Encrypted SNI.
Here's a brief description of each of the features:
Secure DNS: A technology that encrypts DNS queries.
DNSSEC: Designed to verify the authenticity of DNS queries.
TLS 1.3: The latest version of the TLS protocol that has many improvements compared to previous versions.
Encrypted SNI: A display of the server name, or SNI for short, reveals the host name during TLS connections. If someone "listens" to network traffic, e.g. Internet service providers or various companies can record the websites you visit even if you use TLS and Secure DNS. Encrypted SNI encrypts the bits so that only the IP address can be leaked.
The only browser that supports all four features at this time is Firefox:
Below is a brief list of instructions for configuring Secure DNS and Encrypted SNI in Firefox:
Open Firefox's internal address about: config.
Make sure you are careful.
Search for network.security.esni.enabled and change the value to True with a double click
Then look for network.trr.mode and change its value to 2. Look for network.trr.uri and set it to the address below if it's not already defined
https://mozilla.cloudflare-dns.com/dns-query
That's it. Now try your browser.