IP Addresses
Articles about IP addresses, how they work, address types and their management.
Does airplane mode change your IP address?
Toggling airplane mode can change your mobile IP address. Here is why it works, when it does not and what it actually changes.
Who controls the internet and how IP addresses work
ICANN, IANA, regional registries: discover who actually runs the internet, how IP addresses are assigned and why nobody owns the network.
How many IPv4 addresses are there?
There are exactly 4,294,967,296 IPv4 addresses. Learn why they are nearly all exhausted, how they are distributed, and what it means for you.
How to fully disable IPv6 and switch to IPv4-only mode
Disabling IPv6 can fix connection problems, VPN leaks or network slowdowns. Here is how to do it cleanly on Windows, Mac, Linux and your router.
What is an ISP and how do internet service providers work?
Everything you need to know about internet service providers: how they work, the types of connection, what they can see about your activity, their infrastructure and how to choose one.
How to block an IP with .htaccess?
Block an IP, an address range or an entire country with .htaccess: discover all the methods to protect your Apache site from unwanted visitors.
The 10 best CAPTCHA solvers in 2026
2Captcha, Anti-Captcha, CapSolver, NopeCHA: discover our comparison of the 10 best services for automatically solving CAPTCHAs in 2026, their pricing and performance.
How to use Claude Code with VS Code?
Installation, Spark icon, inline diffs, Plan mode, @-mentions: discover how to install and use the Claude Code extension in VS Code to boost your developer productivity.
The 10 most used programming languages in 2026
Python, JavaScript, Java, C, Rust: discover the 10 most used programming languages in 2026, their uses and why they dominate the market.
What can someone do with your IP address?
Geolocation, DDoS attacks, intrusion attempts: discover what a malicious person can do with your IP address and how to protect yourself effectively.