Quick answer: Test files are large files (typically 100 MB – 10 GB) hosted in each data center so you can measure real download speed from that location before ordering or while troubleshooting. Get the current Cloud2Y test-file links from cloud2y.com or support, then fetch them with wget or curl.
Overview
Unlike synthetic speed tests, downloading a real file over HTTP measures the whole practical chain: TCP behaviour over the actual distance, the data center's uplinks and your line. It is the closest simulation of "how fast will my users download from this server".
Before you start
- The test-file URL for the location you are evaluating (from the site or support).
- Run the test from where it matters: your users' region, or your own connection if you are the main user.
- Remember the units: downloads show MB/s, links are sold in Mbps — multiply MB/s by 8.
Step-by-step guide
- Download without saving (no disk bottleneck, no clutter):
wget -O /dev/null TEST_FILE_URL # or curl -o /dev/null TEST_FILE_URL - Watch the average speed in the progress output; let it run at least 15–30 seconds so TCP ramps up.
- Repeat 2–3 times and at different times of day.
- To test upload from your server instead, download the file from your server towards another location, or use iperf3.
Common issues
- Speed limited by your own line: a 100 Mbps home connection can never show more — test from a well-connected machine for the server-side view.
- Single-stream ceiling on long routes: one TCP stream over intercontinental distance won't fill a 1G port; that's physics, not a fault (see slow speed troubleshooting).
- Saving to a slow disk: always use
-O /dev/nullso you measure the network, not your SSD.
When to contact support
Can't find a test file for the location you need, or results are consistently far below expectations from multiple well-connected sources? Send the numbers to support.
Frequently asked questions
What do test files measure?
Real HTTP download speed from a specific data center — the closest simulation of what your users will experience from a server there.
Where do I get Cloud2Y test file links?
From cloud2y.com or by asking support — links can change, so current ones are not hardcoded in articles.
Why is my test download slow?
Usually your own line or single-stream TCP over a long distance. Test from a well-connected machine and let the download run at least 15-30 seconds.
Related articles
- How to test network speed
- How to use a Looking Glass
- How to check latency to Cloud2Y locations
- What is the difference between traffic and bandwidth?
Ready to get started? Order a VPS at Cloud2Y →
