Checking network speeds

There are a great deal of factors that can affect upload and download speeds from a dedicated server.

Resource usage: This is typically the most common culprit. Heavy CPU, RAM, or I/O usage can severely limit the transfer speeds that the server is capable of. The easiest way to diagnose this issue is to test within a clean environment, such as a Linux Live CD.

Peering and Congestion: Specific routes may have points of congestion, where the full throughput speed is not available at a specific point along the route between the server and client. Our direct connections with our upstream are guaranteed never to be more than 80% utilized, to allow for traffic bursts.

Distance: The further the distance between the client and the server the points of congestion and the higher the latency. Both of these can have a major part in transfer speeds. If there is no congestion along the route, the server OS may not have TCP Windows Scaling enabled.

iPerf3:
curl -sL yabs.sh | bash -s -- -g -f

Speedtest.net (Ubuntu/Debian):
sudo apt-get install curl
curl -s https://packagecloud.io/install/repositories/ookla/speedtest-cli/script.deb.sh | sudo bash
sudo apt-get install speedtest

Speedtest.net (CentOS/Redhat/Alma/Rocky):
curl -s https://packagecloud.io/install/repositories/ookla/speedtest-cli/script.rpm.sh | sudo bash
sudo yum install speedtest

If you have any questions, please contact us for support.