Measure the number that actually matters
Most speed tests in Bangladesh measure local peering and report a figure you will never see on a real download. Test against an international server instead — that is the one ErrorX changes.
Your connection has three speeds
Typical Bangladeshi packageNever leaves Bangladesh, so it costs your ISP almost nothing
YouTube, Facebook and Netflix, served from a cache inside your ISP
GitHub, Steam, Telegram, cloud providers — bought by the gigabit
Only the bottom bar is real international bandwidth, and it is the only one a speed test should be measuring if you want to know whether ErrorX helps. Bars are illustrative of a typical package, not measurements of your line.
Choose a target
BDIX Speedtest
How to test so the result means something
A single test run tells you almost nothing. Two runs, against the same international server, with only one thing changed between them — that is a measurement.
- 1
Disconnect ErrorX first
You need a baseline. Make sure the tunnel is off — or set the app to Direct mode — so you are measuring your ISP route exactly as it normally is.
- 2
Test an international server
Pick Singapore, Mumbai, Jakarta or Tokyo below. Write down the download figure. Do not use the BDIX server for this — it was already fast and will tell you nothing.
- 3
Connect and repeat, identically
Turn ErrorX on in Rule or Global mode, then run the same test against the same server. Changing the server between runs makes the two numbers incomparable.
- 4
Compare the two numbers
The difference is what ErrorX is doing for your connection. If it is small, your ISP route to that region was already good — which is genuinely useful to know.
What your numbers are telling you
Four patterns cover almost every result. One of them means we cannot help you — and we would rather say so than sell you something that will not change anything.
BDIX fast, international slow
The most common result in Bangladesh by far, and the exact case ErrorX is built for. Your ISP gives local bandwidth away and meters the international kind.
Connect and run the same test again — the difference is what you would be paying for.
Speed fine, ping jumps around
Jitter on an otherwise healthy line points to a congested upstream path rather than a lack of capacity. Gaming and calls suffer from this long before downloads do.
Watch the ping and jitter figures, not the download number, when you compare.
Both are fast
Some premium and business lines genuinely have good international routing. If your Singapore figure is already close to your package speed, there is little for us to improve.
Keep your money. Come back if your evenings start getting slower.
Both are slow
A weak Wi-Fi signal, a saturated router or a fault on the line itself. No amount of routing can repair any of those, and buying a plan now would not change the number.
Test again on a cable. If it is still slow, that is a conversation with your ISP.
Seen the gap on your own line?
That difference between your BDIX figure and your international one is the entire reason ErrorX exists. Every plan comes with unlimited data.

