🌐 IPv6 Test
Test whether your internet connection and ISP support IPv6. The check runs from your browser and shows your current IP class (IPv4 or IPv6), then explains whether your device, DNS and route to the internet are IPv6-ready.
Press “Run Test”. A green IPv6 result means your device, router and ISP all have IPv6 working. If only the IPv4 control passes, you are on an IPv4-only connection.
Press “Run Test”. We check normal IPv4 reachability first (control), then try an IPv6-only host.
How This IPv6 Test Works
First we fetch a normal dual-stack host (the control). If that succeeds, your basic internet is working and the test is valid. Next we fetch a host that only has an IPv6 address (AAAA record). If that fetch succeeds, your browser found and used an IPv6 path end to end.
We also read your current connection class from the server: if you are connected via IPv6 right now, that is shown directly. Many dual-stack users browse over IPv4 even when IPv6 is available, which is why the live IPv6 fetch is the more meaningful check.
How to Read Your Result
| Result | What it means |
|---|---|
| IPv6 works | Your device, router and ISP all support IPv6. Nothing to do. |
| IPv4 only | IPv6 is not enabled somewhere in your chain: iSP, router, or device. |
| Inconclusive | The IPv4 control also failed, so the test could not run reliably. Check your connection and retry. |
IPv4 vs IPv6 at a Glance
| IPv4 | IPv6 | |
|---|---|---|
| Address size | 32-bit | 128-bit |
| Example | 192.0.2.10 | 2001:db8::10 |
| Address space | ~4.3 billion (exhausted) | ~340 undecillion (effectively unlimited) |
| NAT required? | Usually yes | No |
| Status in BD | Universal | Growing, ISP-dependent |
FAQ (Frequently Asked Questions)
How Do I Know If My Connection Supports IPv6?
Run this test. It tries to reach an IPv6-only host from your browser. If that succeeds, your device, router and ISP all have a working IPv6 path. If it fails while the normal IPv4 check succeeds, you are on IPv4 only.
What Is the Difference Between IPv4 and IPv6?
IPv4 uses 32-bit addresses (like 192.0.2.10) and has a limited pool that is essentially exhausted. IPv6 uses 128-bit addresses (like 2001:db8::10) and offers a virtually unlimited pool. IPv6 also removes the need for network address translation (NAT).
Why Is My IPv6 Test Failing Even Though My ISP Says I Have IPv6?
IPv6 must be enabled at every step: your ISP, your router, and your device (and sometimes your Wi-Fi settings). If any one link is missing, the test fails. Check your router settings and try on a mobile data connection as a second opinion.
Is IPv6 Faster Than IPv4?
Not inherently, but on some networks IPv6 avoids NAT and congested IPv4 paths, which can feel faster. Real-world differences are usually small; the main benefit is address space and more direct connectivity.
Do Bangladeshi ISPs Support IPv6?
Several major Bangladeshi ISPs have begun enabling IPv6, but coverage is still uneven and varies by area and package. This test tells you whether your specific connection has it right now.
Does BDIX Use IPv6?
BDIX peering is still largely IPv4-based, using private 10.x and other ranges. IPv6 is increasingly important for the public internet, but most BDIX FTP and media servers today are reached over IPv4.