Library

Learn how your connection and device work

Every IntelReap scan produces numbers and labels that are easy to read but harder to interpret: an ASN, a WebRTC candidate, a fingerprint uniqueness score, a GPU renderer string. The articles below explain what each of those means, why it matters for privacy, performance and security, and what you can do about it.

Each article is written for people who are not network engineers. It starts from a question you might ask after seeing your results, such as whether a VPN really changes your MAC address, why your internet speed fluctuates or what a VPN concentrator does, and answers it with concrete examples and steps you can try on your own devices.

The library covers three areas. Privacy and tracking: device fingerprinting, WebRTC leaks and everyday protection steps. Network concepts: reverse IP lookup, VPN passthrough, VPN concentrators, running two internet providers in one home and why speeds change. Hardware: what a GPU does and how it shows up in what websites can learn about your device.

Looking for step-by-step fixes instead of explanations? Visit the guides. To run a scan, go to the IntelReap homepage.

All articles

Article Can You Have Two Internet Providers in One House? Yes — you can legally have two internet providers in one house. Learn how dual-WAN works, which routers support it, load balancing vs failover, costs, and... Article Does a VPN Change Your MAC Address? No — a VPN does not change your MAC address. Learn what a VPN actually changes, whether ExitLag is a VPN, how to use VPN in incognito, bind qBittorrent to a... Article How to Protect Your Privacy Online Practical steps to protect your privacy online in 2026 — VPNs, browser fingerprinting, password security, DNS privacy, mobile tracking, and the tools that... Article WebRTC Leak Test & Shield Your Real IP WebRTC can expose your real IP address even behind a VPN. Test for leaks instantly and learn how to disable or shield WebRTC in Chrome, Firefox, Safari... Article What Is a GPU? A GPU is a processor built for massively parallel computation. Learn what GPU stands for, how it works, how it differs from a CPU, integrated vs dedicated... Article What Is a VPN Concentrator? A VPN concentrator is a dedicated network device that handles hundreds or thousands of simultaneous VPN tunnels. Learn how it works, how it differs from a... Article What Is Device Fingerprinting? How It Works and How to Block It Device fingerprinting identifies you without cookies by combining browser, hardware, and network signals. Learn how it works, who uses it, and how to reduce... Article What Is Reverse IP Lookup? Reverse IP lookup finds every domain hosted on a given IP address. Learn how it works, why sites share IPs, what it's used for, and its limitations for... Article What Is VPN Passthrough? VPN passthrough lets VPN client traffic travel through a NAT router to an external VPN server. Learn what it is, when you need it, and how to enable it... Article Why Does My Internet Speed Fluctuate? Internet speed fluctuates due to congestion, modem age, router limits, Wi-Fi interference, or ISP throttling. Diagnose the exact cause and fix it with this...