Turn off Chrome browser QUIC protocol to improve YouTube speed

Lao Yang has been using the Win11 system, and he still prefers to pursue new system software. Yesterday on another Win10 system, he found that there was a lag when watching YouTube videos using the Edge browser. Previously, he used Edge and Google Chrome to browse. There are no problems with the servers, and they all use the Banwagonhost VPS to access the Internet, which can eliminate network problems. So I consulted relevant information and found a solution. This article will introduce the process.

Solution

Open your Chromium-based browser, such as Edge and Google Chrome, click the address in the address bar, and select Experimental QUIC protocol as Disabled. The address is as follows:

Bash chrome://flags/#enable-quic

Reason for closure

As we all know, under the wave of Internet in mainland China, UDP has become less and less ideal, so foreign server games need to use proxy UDP technology to achieve smooth effects.

Google's servers, such as Google search, YouTube video and other services, all deploy QUIC services, which means that when you use a Chromium-based browser with the QUIC function turned on to access the Google website, you will try to use the QUIC method. transfer data.

And it happens that your local operator discriminates against the UDP protocol and then wildly limits the speed or loses packets. At this time, your speed will be very impressive.

What is QUIC

Because the cost of establishing a TCP protocol connection is relatively high, TCP Fast Open can be used to reduce the number of handshakes when establishing a connection, but this technology is currently rarely used.

Contrary to TCP, the UDP protocol is a connectionless protocol. After the client sends a UDP packet, it can only "assume" that the packet has been received by the server. The advantage of this is that there is no need to confirm the packet at the network transport layer. , but the problem is that in order to ensure the reliability of data transmission, the application layer protocol needs to confirm the packet transmission status by itself.

At this point, the QUIC protocol comes on stage. The QUIC protocol can complete the creation of the connection within 1 to 2 packets, but it depends on whether the connected server is new or known.

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