What is response time?
Response time is the time a server takes to accept, process, and reply to a request from a device or another server. For VPNs, a shorter response time means traffic moves between your device and the VPN server with less delay. A longer response time can reduce connection speeds and increase latency.
What are examples of response time?
Response time applies to almost any interaction between a device and an online system. Common examples include:
- Website response time: The time between requesting a webpage and the web server beginning to return its content.
- API response time: How long an application programming interface takes to process a request and return data.
- Database response time: The time a database needs to run a query and send back the result.
- DNS response time: How long it takes a DNS resolver to translate a domain name into an IP address.
- Gaming response time: The delay between a player’s action and the game server’s response, often measured as ping.
- VPN response time: How quickly a VPN server receives and forwards traffic. A nearby server with low load will respond faster than a distant or busy one.
A 10 ms response time feels almost instant, while 200 ms may cause noticeable latency. The effect depends on what you’re doing and which part of the connection is measured.
What factors affect response time?
Response time depends on the network and the system handling the request. The main factors are:
- Distance. Data takes longer to travel between a device and a distant server.
- Server load. A busy server may need more time to process and answer requests.
- Network congestion. Heavy traffic can lead to congestion, causing slower response times.
- Connection quality. A weak Wi-Fi signal, interference, an outdated router, or an already slow internet connection can increase response time.
How to improve response time with NordVPN
Routing traffic through a remote server adds processing overhead and increases the distance over which data travels, which is why a VPN slows down internet traffic in some cases. With NordVPN, you can minimize that effect by choosing the right server and connection settings:
- Choose a server close to your physical location to minimize latency.
- Use NordVPN's “Secure my connection” feature to automatically connect to the fastest server based on AI-powered evaluation of distance, load, and other parameters.
- Switch to NordLynx, a WireGuard-based protocol designed for fast and efficient connections.
- If your speed drops, try another server in the same region.
- Turn off Double VPN when speed is the priority.
- Plug into an Ethernet connection or move closer to your Wi-Fi router to reduce packet loss and delays.
- Restart your device and router to clear out network hiccups.
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