NailongVPN · VPN connection comparison worksheet
Revision: 2026-10-27
Guide: https://nailongvpn.com/en/learn/vpn-speed-tests

Fill this in on your device; fields are optional. No automatic testing or upload.
Before sharing, remove private subscription URLs, passwords, API keys,
verification codes, session credentials and account details.
Record only the destination domain, not a full URL with private parameters.

1. Symptom and environment
Symptom / exact error text (redacted):
Local date, time and time zone:
Device / operating system version:
Client name / version:
Network type / provider (no address needed):
Proxy mode (System Proxy / mobile VPN / TUN):
Subscription valid, data remaining (yes / no / unsure):
Browser request appears in client's connections list (yes / no):
Matched rule / proxy group name:
Exit country matches expectation (yes / no / not checked):

2. Comparison: change one condition at a time
Same destination domain:
Group A network / node display name / protocol:
Group B network / node display name / protocol:
Changed condition:
Are other conditions the same?
Do both use the same exit? (yes / no / not checked; omit private IPs)

Try | Time | Group A success/failure, wait seconds | Group B success/failure, wait seconds
1   |      |                                       |
2   |      |                                       |
3   |      |                                       |

Group A failures / total attempts:
Group B failures / total attempts:
Connection timeout or an HTTP response code?
Did a screen lock, sleep or network change occur at the same time?

3. Optional full speed test (consumes upload and download data)
Test platform / destination / time:
Download / upload Mbps for every run:
Idle / loaded latency in ms for every run:
Jitter or loss in the original results, including the test method:
Keep every result, not just the fastest. Request failure rate is not packet loss.

4. Restore and follow up
Original node, protocol and network restored (yes / no):
Currently working combination:
Question for support:
If attaching logs, include only the relevant time and check redaction again.

These records locate differences. One test cannot establish throttling,
blocking or long-term bandwidth.