Copper lines have different limits
DSL performance can vary with line length, line quality, modem sync and the technology used by the provider.
DSL Speed Test
Check how a DSL or VDSL-style connection performs in the areas that matter most on copper lines: downstream speed, upstream balance and latency under load.
DSL speed classUpstream balanceLoaded latencyStreaming fit
DSL Performance Test
A DSL/VDSL-focused reading for downstream, upstream and loaded response
Ready—score / 100
Your dsl line profile
Run a live test
Run the live measurement to evaluate DSL/VDSL line performance, with particular attention to downstream/upstream balance and latency on a copper-based access line.
No result yet. The live test uses Cloudflare measurement endpoints and interprets the same core metrics differently for this page’s user intent.
Download—Mbps
Upload—Mbps
Ping—ms
Jitter—ms
Loaded latency—ms
The live measurement connects directly to Cloudflare. Results are estimates and can change with Wi‑Fi, VPNs, device load, server routing and network conditions.
Upload can become the hidden bottleneck
On asymmetric DSL services, a busy upload can increase latency sharply. That is why this result keeps upstream and loaded latency visible.
Wi‑Fi can mask the line itself
If possible, compare an Ethernet test before concluding that the DSL line is responsible for a poor wireless result.
Broadband Speed Test
Household capacity and busy-network performance.
Open test →Connection Speed Test
Ping, jitter and connection stability.
Open test →Wi‑Fi Speed Test
Wireless stability, congestion symptoms and router help.
Open test →Download Speed Test
Downstream speed plus practical file download times.
Open test →Streaming Speed Test
Video quality, buffering risk and simultaneous streams.
Open test →All Speed Tests
Overall speed, stability and the full test family.
Open test →How to use the result
What this test is actually checking
Focus of this test
This page interprets the live measurements for DSL/VDSL line performance. The result gives extra weight to downstream/upstream balance and latency on a copper-based access line instead of treating every connection problem as a simple download-speed issue.
If the result looks weak
Test by ethernet, reboot the modem and compare the sync/service tier with the measured throughput. Run more than one test before drawing a conclusion because Wi-Fi conditions, local congestion, device capability and the remote network can all change a single measurement.
Use the result as a diagnosis, not a guarantee
A speed test is a snapshot of the path between your device and the measurement service. The actual app or service may use different servers and routes, so compare this diagnosis with the real activity you are trying to improve.