You are connected via IPv4 from 185.104.194.44
To force the usage of IPv6, visit Speedtest6.Tele2.NET.
To force the usage of IPv4, visit Speedtest4.Tele2.NET.
The Tele2 Speedtest Service helps you test your Internet connection speed through various methods and is available not only to customers of Tele2 but anyone with an Internet connection. Test your connection using speedtest.net's tool, downloading a file via your web browser (HTTP) or downloading and uploading via FTP.
Speedtest is run on a number of fast servers in locations throughout Europe connected to Tele2's international IP core network with 10GE. The address http://speedtest.tele2.net is anycasted, meaning that you should automatically be served by the server closest (network wise) to your location. Read more about the technical details of this service.
You are currently being served by xxx-SPEEDTEST-1 located in City, Country.
We provide a variety of testfiles with different sizes, for your convenience.
1MB
10MB
100MB
1GB
10GB
50GB
100GB
1000GB
md5sum
sha1sum
These are sparsefiles and so although they appear to be on disk, they are not limited by disk speed but rather by CPU. The Speedtest servers are able to sustain close to 10 Gbps (~1GByte/s) of throughput. See the technical details to learn more about sparse files and the setup of the Tele2 Speedtest service.
To download on a Unix like system, try wget -O /dev/null http://speedtest.tele2.net/10GB.zip
After some requests we have also added the possibility to upload data using HTTP:
$ curl -T 20MB.zip http://speedtest.tele2.net/upload.php -O /dev/null
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 20.0M 0 192 100 20.0M 3941 410M --:--:-- --:--:-- --:--:-- 416MIn addition to the files offered here via HTTP, there is also an FTP server setup to serve files, you'll reach it at ftp://speedtest.tele2.net. You can upload files to /upload. Uploaded files will be automatically removed as soon as the upload is complete.
speedtest.net is an easy to use web-based (Flash) test to test both upload and download speeds as well as latency to any of a long list of servers around the world. Tele2 Speedtest servers runs a speedtest.net server. Go to speedtest.net to test your connection. This server (xxx-SPEEDTEST-1) will automatically be picked for you. After the test you can choose a another server and location to perform further testing.
The Tele2 Speedtest service is distributed over multiple machines spread across locations in Europe. By going to http://speedtest.tele2.net you will always end up on the closest location (network-wise) to you. You can specifically select another test node from the below list if you want to perform tests towards a particular location.
Note: If you choose this version, you are responsible for your own system security, often using alternative lightweight protection or relying on cautious browsing. Key Benefits of Optimum 10 Pro v5.1
The Optimum 10 Pro build is designed to maximize performance, responsiveness, and resource savings. Independent testing has shown that X-Lite builds excel in game performance, with benchmarking ranking the OS among the best for titles like PUBG and Cyberpunk 2077 in terms of frame rates and overall smoothness.
This image completely removes all components of Microsoft Defender from the system. By permanently purging the antivirus background services, it frees up critical CPU cycles and disk I/O operations. This variant is ideal for dedicated gaming rigs or air-gapped workstations where third-party security software or strict offline operations are used instead. Key Performance and Visual Changes in v5.1
Positive effects claimed by proponents:
is an outstanding choice for those looking to breathe new life into their hardware. It successfully proves that you do not need to sacrifice security (Defender) to achieve extreme performance. With its focus on optimization, privacy, and speed, it is one of the best custom Windows 10 experiences available in 2026. If you’d like, I can: List the pre-installed apps vs. what was removed .
for "Defender On" and "Defender Off" builds. This allows users to choose their security baseline during the initial installation rather than needing to run scripts later. Optional Defender
typically remains intact, though some users report it may require manual script configuration to close all unnecessary ports for maximum security. Performance Optimization -Windows X-Lite- Optimum 10 Pro v5.1 -Defender ...
| Item | Details | |------|----------| | | Windows 10 Pro (22H2 build typically) | | Version | Optimum 10 Pro v5.1 | | Type | Custom Lite ISO | | Default State | Pre-activated (using KMS/channel scripts) | | Target User | Low-spec PCs, gaming, privacy-focused enthusiasts |
is a highly optimized, lightweight custom operating system based on the Microsoft Windows 10 22H2 architecture. Developed by the custom OS builder fbconnan , this release reimagines the traditional desktop environment by stripping out systemic bloatware, background tracking, and unneeded telemetry. The version 5.1 update targets gamers, power users, and owners of legacy hardware who want maximum machine performance without forced hardware upgrades. Core Specifications & Resource Consumption
The project stands out as a highly optimized, custom operating system designed by developer FBConan. It radically strips down Windows 10 to its absolute essentials while introducing tailored user controls. 🛠️ Technical Specifications & Core Architecture Note: If you choose this version, you are
specifically addresses this.
Supports all standard Windows software, drivers, and modern games.
If you are interested in performing more in-depth studies and high-performance measurements, please contact bgp4-adm _at_ tele2.net directly.