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The idea that the internet flows mainly through the air is a myth. The entire technological world relies on heavy hardware buried in the sand of the seas. In the article, we will examine the technology of submarine cables. You will learn how optical fibers work, what laying them from ships entails, and how the depths of the oceans have become a geopolitical battlefield.

How much money leaves your account each month for online services? The recurring payment model often exhausts people because numerous small amounts gradually add up to unexpectedly high totals. The text relies on fresh data from 2026, reveals the vast difference between our estimates and reality, and offers four specific steps to help you better control your expenses.
On this site you can test your internet connection for free.
We recommend you to lower or stop all other internet activities during the test. In other cases the test results are less precise.
Outputs of this test:
From the user’s perspective, everything is simple. In the web browser, click on the measurement button and wait. Before starting the speed test, it is important to deactivate all tasks, applications and devices that could use the capacity to connect to the Internet. The results would be affected by that and you would not find out anything, or the conclusions would not have the required notification value.
The technical solution and the background of the speed test itself are complex, but to explain it in a few words and very simplistically, the test simulates a situation in which you download or upload data. The measured values are calculated depending on the speed of these transmission. You can test the speed of up to 30 test servers located in geographically different locations.

Stable internet connection in the car is no longer just for the owners of the latest electric cars. Having your own car Wi-Fi is useful for anyone who wants to entertain kids in a traffic jam or needs reliable data for navigation. There are several options on how to set up a network in an older car as well. We'll show you how to get it all working and which variant will save you the most nerves and money on data transfers.

Do you have lightning-fast internet at home, but your YouTube video or Netflix show keeps pausing? While fast internet is essential, it often isn't enough for smooth video playback. An empty buffer that can't feed your device with data quickly enough is often the culprit. Discover how to find weak spots in your network and what to do when the provider's theory doesn't match practice.

AI agents are no longer just an experiment of tech companies. They are increasingly appearing in tools we use every day and can independently plan, decide, and execute tasks. We explain what an AI agent is, how it differs from a regular chatbot, and where it can actually save you time and energy.