Website Reachability Test
Check if your website or server can be reached from different countries around the world. See how fast it responds (response time) and whether any data is lost along the way.
How Does This Test Work?
When you enter a domain or website address, our tool sends a small test signal from multiple servers located in different countries. Each server reports back how long it took to get a response and whether all data arrived successfully. This gives you a clear picture of how your website performs for visitors around the world — without needing any technical knowledge or software.
What Is a Website Reachability Test?
A reachability test checks whether your website or server can be reached from different locations around the world. It sends a small signal to your server and measures how long it takes to get a reply. This round-trip time is called response time (or latency) and is measured in milliseconds (ms). A lower number means your website loads faster for visitors in that region.
Why Test from Multiple Countries?
Your website might feel fast when you open it from your own computer, but visitors in other countries could experience a much slower connection. By testing from servers across the globe, you can discover if people in certain regions are having trouble accessing your site, verify that your content delivery network (CDN) is working properly, and make sure your website is reliably available to everyone.
What Is Response Time (Latency)?
Response time measures how long it takes for data to travel from a visitor's device to your server and back. It is measured in milliseconds (ms). Think of it like the time between calling out to someone and hearing their reply — the shorter the better.
- < 40 ms
- Below 40 ms — Excellent. Your website feels nearly instant. Typical when visitors are in the same region as your server or you use a CDN.
- 40 – 150 ms
- 40 – 150 ms — Acceptable. A small but usually unnoticeable delay. Common for visitors connecting from a different continent.
- > 150 ms
- Above 150 ms — Slow. Visitors may notice delays when browsing, especially on interactive pages, video calls, or online forms.
Why does response time matter? Studies show that a one-second delay in page load time can reduce conversions by 7%. Search engines like Google also factor site speed into rankings, so faster response times help both your visitors' experience and your SEO.
What Is Data Loss (Packet Loss)?
When data travels across the internet, it is split into small pieces called packets. Data loss (also called packet loss) happens when some of these pieces fail to arrive at their destination. Think of it like sending 10 letters by post but only 8 arriving.
0% data loss means every piece of data arrived safely — the connection is healthy and reliable. Any data loss indicates a problem: it could be network congestion (too much traffic), a faulty connection somewhere along the route, or a firewall blocking the data. Even a small amount of loss (1–2%) can cause web pages to load slowly, video calls to stutter, or online forms to fail to submit.
What to Do If You See Data Loss
If your website shows data loss from many locations, contact your hosting provider. If only one or two regions are affected, the issue may be with an internet route rather than your server. Try testing again later to see if the problem persists.