So what is HTTP3/QUIC and how are they related?
LiteSpeed explains QUIC as:
“QUIC was originally a Google effort to improve HTTP/2 by transporting it encrypted over UDP. In 2016, the IETF began working to standardize the protocol. Part of that process involved splitting QUIC into the transport and application protocols. For some time, the application protocol was referred to as HTTP-over-QUIC, but in November of 2018, the IETF announced that HTTP-over-QUIC would be called HTTP/3.
The IETF is still defining what HTTP/3 will look like. There will be several iterations of review and revision before a standard is adopted, and LiteSpeed will continue to be involved every step of the way.
LiteSpeed QUIC Implementation:
The Internet currently uses a version of the QUIC protocol called "Google QUIC," sometimes abbreviated gQUIC. It started as a Google experiment between the Chrome browser and some of the Google services, in an effort to improve upon HTTP/2. We added support for Google QUIC to our Web Server and ADC products in 2017. At around the same time, Google handed off the protocol to the IETF for standardization.”
How can I do the “QUIC” test?
Navigate to https://www.http3check.net/ and paste your domain name in the checkbox, alternatively follow the steps mentioned below:

HTTP/2:

HTTP/2 + QUIC:

What the majority use:

LiteSpeed Web Server HTTP/3 ready:

Speed tests run on international A2 Hosting as well as local SA hosting. Speed tests conducted from Canada using a Basic Wordpress Site:
A2 International Hosting:

SA Hosted Server without LiteSpeed/QUIC:

SA Hosted Server with LiteSpeed/QUIC enabled

Conclusion:
HTTP/3 may still be in it's development stages but straight off the bat we can see some interesting results. Be that as it may there is still the concern regarding security and we will be monitoring developments from major firewall developers closely to see how and when they will fully support the new protocol.
Sources:
https://www.litespeedtech.com/latest-techs/http-3-is-coming
https://gtmetrix.com/
https://chrome.google.com/webstore/...icator/mpbpobfflnpcgagjijhmgnchggcjblin?hl=en
https://chrome.google.com/webstore/detail/wappalyzer/gppongmhjkpfnbhagpmjfkannfbllamg?hl
LiteSpeed explains QUIC as:
“QUIC was originally a Google effort to improve HTTP/2 by transporting it encrypted over UDP. In 2016, the IETF began working to standardize the protocol. Part of that process involved splitting QUIC into the transport and application protocols. For some time, the application protocol was referred to as HTTP-over-QUIC, but in November of 2018, the IETF announced that HTTP-over-QUIC would be called HTTP/3.
The IETF is still defining what HTTP/3 will look like. There will be several iterations of review and revision before a standard is adopted, and LiteSpeed will continue to be involved every step of the way.
LiteSpeed QUIC Implementation:
The Internet currently uses a version of the QUIC protocol called "Google QUIC," sometimes abbreviated gQUIC. It started as a Google experiment between the Chrome browser and some of the Google services, in an effort to improve upon HTTP/2. We added support for Google QUIC to our Web Server and ADC products in 2017. At around the same time, Google handed off the protocol to the IETF for standardization.”
How can I do the “QUIC” test?
Navigate to https://www.http3check.net/ and paste your domain name in the checkbox, alternatively follow the steps mentioned below:
- Enable “QUIC” in Chrome navigate to -> chrome://flags -> Experimental QUIC protocol -> Enable
- Install SPDY Chrome extension -> https://chrome.google.com/webstore/...icator/mpbpobfflnpcgagjijhmgnchggcjblin?hl=en
- (Optional) install Wappalyzer Chrome Extension to see what the website is running on -> https://chrome.google.com/webstore/detail/wappalyzer/gppongmhjkpfnbhagpmjfkannfbllamg?hl=en
- Navigate to the site you wish to check and observe the SPDY icon as shown below:

HTTP/2:

HTTP/2 + QUIC:

What the majority use:

LiteSpeed Web Server HTTP/3 ready:

Speed tests run on international A2 Hosting as well as local SA hosting. Speed tests conducted from Canada using a Basic Wordpress Site:
A2 International Hosting:

SA Hosted Server without LiteSpeed/QUIC:

SA Hosted Server with LiteSpeed/QUIC enabled

Conclusion:
HTTP/3 may still be in it's development stages but straight off the bat we can see some interesting results. Be that as it may there is still the concern regarding security and we will be monitoring developments from major firewall developers closely to see how and when they will fully support the new protocol.
Sources:
https://www.litespeedtech.com/latest-techs/http-3-is-coming
https://gtmetrix.com/
https://chrome.google.com/webstore/...icator/mpbpobfflnpcgagjijhmgnchggcjblin?hl=en
https://chrome.google.com/webstore/detail/wappalyzer/gppongmhjkpfnbhagpmjfkannfbllamg?hl
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