IP, Privacy & Network Security Guides
Plain-English guides on IP addresses, online privacy, networking fundamentals, VPNs, and digital security - For beginners and experts alike.
What Is an IP Address?
Every device on the internet has an IP address. Understanding what it is, what it reveals, and how to protect it is the foundation of online privacy.
Read the guide →IP Address Fundamentals
Everything about how IP addresses work, the difference between IPv4 and IPv6, and how they are assigned.
What Is a Public IP Address?
What makes an IP "public", who assigns them, and what they expose about you.
Beginner
What Is a Private IP Address?
RFC 1918 ranges, NAT, and how your router manages local network addressing.
BeginnerWhat Is a Static IP Address?
When you need a static IP, how to get one, and the privacy trade-offs.
Beginner
What Is a Dynamic IP Address?
How DHCP assigns and renews addresses, and what that means for your privacy.
BeginnerHow to Find Your IP Address
Step-by-step instructions for Windows, macOS, Linux, iOS, and Android.
Beginner
How to Change Your IP Address
Six methods compared: VPN, proxy, Tor, router restart, ISP request, and mobile hotspot.
PopularIs IP Geolocation Accurate?
How geolocation databases work and why your shown location may differ from reality.
Intermediate
What Can Someone Do With My IP?
Real risks vs myths - What is actually possible when someone has your IP address.
Important
What Is an ASN?
Autonomous System Numbers - How internet routing works at a global scale.
Intermediate
What Is CIDR Notation?
How /24, /16, /8 notation works and how to read network ranges quickly.
IntermediatePrivacy & Security
Practical guides to protect your data, understand threats, and stay safe online.
What Is Browser Fingerprinting?
How websites track you without cookies - And how to reduce your fingerprint.
Important
What Is WebRTC?
How the WebRTC API can leak your real IP even behind a VPN, and how to stop it.
Important
What Is a DNSBL?
Email blacklists explained - How they work and which ones matter most.
IntermediateHow to Remove Your IP From a Blacklist
Step-by-step delisting process for the major DNSBL providers.
Popular
What Is Encryption?
Symmetric vs asymmetric, AES vs RSA, and what "end-to-end encrypted" really means.
BeginnerWhat Is SSL/TLS?
The protocol behind the padlock in your browser - Versions, vulnerabilities, and best practices.
Intermediate
What Is DNS over HTTPS?
How DoH encrypts your DNS queries and how to enable it in every major browser.
Intermediate
What Is a Firewall?
Packet filters, stateful firewalls, WAFs - What each does and when you need one.
IntermediateWhat Is Port Scanning?
How port scanners work, why attackers use them, and how to defend your server.
Intermediate
What Are HTTP Headers?
Request and response headers - The hidden metadata of every web request.
Intermediate
What Is WHOIS?
Domain registration data, GDPR redaction, and how to look up who owns a domain.
Beginner
What Is a Proxy Server?
HTTP proxies, SOCKS5, reverse proxies - What each type does and when to use them.
Beginner
What Is Two-Factor Authentication?
SMS, TOTP, hardware keys - A practical guide to 2FA and which type is most secure.
BeginnerHow to Secure Your Home Router
Step-by-step hardening guide for your Wi-Fi router to protect every device on your network.
IntermediateFind Your IP on Any Device
Device-specific guides to find, hide, or change your IP address on phones, computers, and game consoles.
IP Address on iPhone
Find your iPhone's public and private IP through Settings or Safari in under a minute.
BeginnerIP Address on Android
Locate your public and private IP on any Android device, from Samsung to Pixel.
BeginnerIP Address on Windows 10 & 11
Use ipconfig, Settings, or Control Panel to find your address on Windows.
BeginnerIP Address on Mac
Every way to find your Mac's IP - System Settings or Terminal, step by step.
BeginnerIP Address on PS5
Find your PS5's IP for port forwarding, static IP setup, and fixing NAT type errors.
BeginnerIP Address on Xbox
Locate your Xbox Series X|S or Xbox One IP and fix NAT issues that block multiplayer.
BeginnerHide Your IP on iPhone
VPN, iCloud Private Relay, Tor, and proxies compared for iOS privacy.
PopularHide Your IP on Android
From full-device VPNs to Tor - Pick the masking method that fits your threat model.
PopularChange Your IP on Windows
Renew DHCP, set a static address, or swap your public IP - With exact commands.
IntermediateChange Your IP on Mac
Three macOS methods: DHCP lease renewal, static local IP, or a new public IP via VPN.
IntermediateNetworking Fundamentals
Core protocols and concepts - How data actually moves between your device and the rest of the internet.
TCP vs UDP
Reliability vs speed - Which transport protocol powers the web, gaming, and streaming.
Intermediate
What Is Ping and Latency?
Latency, jitter, and packet loss explained - And what counts as a good ping for gaming.
BeginnerWhat Is Traceroute?
Map every router hop between you and a server to pinpoint delays and packet loss.
IntermediateWhat Is Bandwidth?
Bandwidth is capacity, not speed - How Mbps, throughput, and latency really differ.
Beginner
What Is NAT?
How your whole home shares one public IP, and how NAT types affect online gaming.
IntermediateWhat Is DHCP?
The protocol that hands out IP addresses automatically - The DORA lease process explained.
IntermediateWhat Is a MAC Address?
The 48-bit hardware ID in your network card - And why phones now randomize it.
BeginnerIP Address vs MAC Address
Two identifiers, two network layers - Scope, format, and who assigns each one.
BeginnerWhat Is a Dedicated IP?
An IP that is yours alone - Email deliverability, hosting, and VPN use cases compared.
IntermediateWhat Is a Shared IP Address?
Why one bad neighbor on a shared IP can blacklist your email or website.
IntermediateSecurity Threats & Online Safety
Know the attacks - Phishing, breaches, DDoS, tracking - And what realistically happens when someone has your IP.
Can Police Track an IP Address?
How law enforcement traces an IP to a person - Warrants, ISP logs, and where VPNs fit in.
PopularCan Someone Hack You With Your IP?
What an attacker can realistically do with your IP - And what is pure myth.
Important
What Is Phishing?
Recognize the red flags in fake emails, texts, and websites before you click.
Important
What Is a Data Breach?
How breaches expose passwords and identities, and what to do if you are affected.
ImportantWhat Is a DDoS Attack?
How botnets flood targets offline, the main attack types, and how sites defend.
IntermediateWhat Is the Dark Web?
Surface, deep, and dark web layers - How Tor hidden services work and what is legal.
IntermediateHow to Check If a Website Is Safe
Spot scam sites with quick checks: certificate, WHOIS age, URL tricks, and reviews.
BeginnerHow Do Cookies Track You?
First-party vs third-party cookies, cross-site tracking, and the settings that stop it.
BeginnerHow to Be Anonymous Online
A layered approach: Tor, fingerprinting, metadata, and how much privacy you really need.
PopularVPNs & Anonymity
Everything about VPNs, proxies, Tor, and the tools that protect your identity online.
VPN Guide for Beginners
Start here if you've never used a VPN - Setup, terminology, and what to expect.
BeginnerVPN Protocols Explained
WireGuard, OpenVPN, IKEv2, L2TP - Which protocol should you use and why?
IntermediateWhat Is WireGuard?
The modern VPN protocol that is faster and more auditable than OpenVPN.
IntermediateWhat Is OpenVPN?
The battle-tested open-source VPN protocol - How it works and when to use it.
IntermediateWhat Is a VPN Kill Switch?
Why a kill switch prevents IP leaks when your VPN connection drops.
ImportantVPN Logging Policies
What "no-logs" actually means, which providers have been audited, and what to avoid.
ImportantVPN Jurisdiction & 14 Eyes
How intelligence-sharing alliances affect which VPN providers can be trusted.
IntermediateBest VPNs in 2025
Provider comparison across privacy, speed, jurisdiction, price, and audits.
PopularAre Free VPNs Safe?
The truth about how free VPN services make money - And what that costs you.
ImportantTor vs VPN
Onion routing vs encrypted tunnels - Which anonymity method is right for you?
IntermediateBest VPNs for Streaming
Which VPNs unblock Netflix, BBC iPlayer, Disney+, and other platforms reliably.
PopularBest VPNs for Torrenting
P2P-friendly VPNs with port forwarding, kill switch, and no-logs guarantees.
IntermediatePut Your Knowledge to Use
Use our free tools to check your own IP, test your VPN, check your browser fingerprint, and verify your privacy setup.