Security Sheets
In-depth guides to protect your digital life
Developer pick: Best Free IP Geolocation API (2026) — a source-verified roundup of 7 free IP APIs.
How I Made My Privacy Site Recommendable by ChatGPT (and Got Merged into public-apis the Same Week)
A 6-file playbook for making any site discoverable to AI agents. Real code, real GA numbers from hackmyip.com, including how a one-line PR to public-apis (437k stars) compounded with the LLM-readiness work.
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What Can Someone Do With Your IP Address?
Learn what hackers and trackers can do with your IP address and how to protect yourself from common threats.
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Is Your VPN Actually Working? 5 Tests to Find Out
Five practical tests to verify your VPN is truly protecting your privacy and not leaking your real IP address.
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Browser Fingerprinting: How Sites Track You Without Cookies
Understand how browser fingerprinting works, why it is harder to block than cookies, and how to reduce your digital fingerprint.
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How to Change Your IP Address (5 Methods)
Five practical methods to change your IP address for privacy, security, or troubleshooting purposes.
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Public vs Private IP: What Is the Difference?
Understand the difference between public and private IP addresses, how NAT works, and why both matter for your network.
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DNS Leak: The Silent Privacy Killer
What DNS leaks are, how they expose your browsing history even with a VPN, and how to fix them.
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WebRTC Leak: How Your VPN Gets Bypassed
How WebRTC leaks expose your real IP address even when using a VPN, and how to prevent them in every browser.
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What Are Open Ports and Why Should You Care?
Learn what open ports are, how attackers exploit them, and how to secure your network by closing unnecessary ports.
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Your ISP Knows Everything: Here Is What They See
Everything your Internet Service Provider can see about your online activity and how to limit their surveillance.
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WiFi Security Checklist: Is Your Home Network Safe?
A comprehensive checklist to secure your home WiFi network against common attacks and vulnerabilities.
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VPN vs Proxy: Which One Actually Protects You?
Understand the real differences between VPNs and proxies, and find out which one actually secures your traffic.
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7 Ways Websites Track You Online
Discover the seven most common tracking techniques websites use to follow you across the internet, and what you can do about each one.
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Tor Browser: How It Works and When to Use It
Learn how the Tor network routes your traffic through multiple relays for anonymity, and when Tor is the right tool for the job.
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What Is a VPN and How Does It Work?
A straightforward explanation of how VPNs work, what they protect, and what they do not, with no marketing fluff.
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Static vs Dynamic IP: Which One Do You Have?
Learn the difference between static and dynamic IP addresses, how to find out which type you have, and why it matters.
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HTTPS Explained: Why That Padlock Matters
Understand what HTTPS actually does, how TLS encryption works, and why the padlock icon in your browser is more important than you think.
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Incognito Mode: What It Actually Hides (and What It Does Not)
The truth about private browsing mode: what it protects, what it ignores, and why you are not as invisible as you think.
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Two-Factor Authentication: Your Best Defense Against Getting Owned
Why two-factor authentication is the single most effective thing you can do for account security, and which 2FA methods to use.
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How to Spot a Phishing Attack Before It Spots You
Learn the telltale signs of phishing emails, fake websites, and social engineering attacks so you never take the bait.
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Password Security: Why P@ssw0rd123 Will Not Save You
The reality of password security in 2024: why common tricks fail, how passwords get cracked, and what actually works.
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Best Free VPN Alternatives in 2026
Comparing the best free VPN options, their limitations, and when you should pay for a premium VPN instead.
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How to Check if Your VPN Is Working on iPhone
Step-by-step guide to verify your VPN connection on iPhone and iPad. Test for IP leaks, DNS leaks, and WebRTC leaks on iOS.
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What Is an IP Address? Everything You Need to Know
A complete beginner guide to IP addresses: what they are, how they work, IPv4 vs IPv6, public vs private, and why your IP matters.
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5 Ways to Hide Your IP Address in 2026
Five proven methods to hide your IP address for privacy, security, and anonymity. From VPNs to Tor to smart DNS.
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Internet Speed Test: How It Works and What the Numbers Mean
Understand download speed, upload speed, latency, and jitter. Learn what affects your speed test results and how to improve them.
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How to Find Your IP Address on iPhone (iOS 17/18)
Step-by-step guide to finding your public and private IP address on any iPhone or iPad. Three fast methods explained.
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How to Find Your IP Address on Windows 10 & 11
Find your public and private IP address on Windows using Settings, Command Prompt, or PowerShell. Quick step-by-step guide.
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How to Find Your IP Address on Mac (macOS)
Find your public and private IP address on Mac using System Settings, Terminal, or the quickest online method.
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How to Find Your IP Address on Android
Find your public and private IP address on any Android phone. Quick guide for Samsung, Pixel, and all Android devices.
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How to Find Your Router IP Address (Default Gateway)
Find your router IP address on Windows, Mac, iPhone, and Android. Access your router admin panel to change settings.
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IPv4 vs IPv6: What Is the Difference and Why It Matters
Understand the differences between IPv4 and IPv6 addresses, why IPv6 exists, and how to check which version you are using.
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Have I Been Hacked? 7 Warning Signs and What to Do
How to tell if your accounts have been compromised. Learn the warning signs of a hacked account and the steps to take immediately.
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Best DNS Servers 2026: Speed, Privacy and Security Compared
Compare the best DNS servers of 2026: Cloudflare 1.1.1.1, Google 8.8.8.8, Quad9, AdGuard DNS, NextDNS, ControlD, Mullvad and DNS4EU — IPs and logging policies verified against each provider's docs, plus a live latency test you run from your own browser.
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Can You Be Tracked With a VPN? The Honest Answer
Find out if a VPN really makes you anonymous online. What VPNs protect against, what they don't, and how you can still be tracked.
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How to Check If Someone Is Using Your WiFi
Find out who is connected to your WiFi network. Detect unauthorized devices and secure your home network from intruders.
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Email Breach Check: How to Know If Your Data Was Leaked
Learn how to check if your email was exposed in a data breach, what data may have been stolen, and how to protect yourself after a breach.
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How to Find Someone's IP Address (5 Legal Methods)
Learn how to find someone's IP address using legal methods. Email headers, website analytics, chat apps, and more — with privacy considerations.
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Is Tor Browser Safe? What It Hides and What It Doesn't
Is Tor Browser safe to use? Learn what Tor actually protects, its limitations, and how to use it properly for privacy.
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How to Tell If Your Router Has Been Hacked (8 Warning Signs)
Learn the warning signs of a hacked router, how to check if your router is compromised, and steps to fix and prevent router hacking.
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Is My IP Blacklisted? How to Check and Fix It
Check if your IP address is on a spam blacklist. Learn why IPs get blacklisted and how to remove yours from blacklists.
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Free Privacy API: IP Lookup, Email Breach Check, VPN Detection (No Key)
Use the free HackMyIP API for IP geolocation, email breach checking, VPN detection, and privacy scoring. No API key required. JSON responses with CORS.
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Have I Been Pwned Alternatives: 5 Free Breach Checkers Compared (2026)
Compare the best free alternatives to Have I Been Pwned for checking email breaches. Side-by-side feature comparison with pros and cons.
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What Does Incognito Mode Actually Hide? The Full Truth
Incognito mode hides less than you think. Learn what private browsing actually protects, what it does not, and how to get real privacy online.
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How to Check If Your VPN Is Actually Working (4 Quick Tests)
Is your VPN really protecting you? Run these 4 quick tests to verify your IP is hidden, DNS is not leaking, and WebRTC is not exposing your real address.
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What Is My IP Address and Why Does It Matter? Complete Guide
Learn what an IP address is, how to find yours, what it reveals about you, and how to protect it. The complete beginner guide to IP addresses.
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Free Dark Web Monitoring: How to Check If Your Data Is Exposed
Learn how to monitor the dark web for your personal data for free. Check if your email, passwords, or personal information have been leaked in data breaches.
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How to Create a Strong Password in 2026 (Complete Guide)
Learn how to create a strong password that hackers cannot crack. Step-by-step guide with examples, best practices, and free tools to test your password strength.
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Do You Need a Password Manager? The Complete Guide
Everything you need to know about password managers: how they work, whether they are safe, free vs paid options, and how to choose the right one for you.
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The 50 Most Common Passwords in 2026 (And Why They Are Dangerous)
See the most common passwords people still use in 2026. Learn why these passwords get cracked instantly and how to replace them with secure alternatives.
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Two-Factor Authentication (2FA): What It Is and Why You Need It
A complete guide to two-factor authentication. Learn what 2FA is, how it works, which types are most secure, and how to enable it on your accounts today.
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How Password Strength Checkers Work (And Can You Trust Them?)
Learn how password strength checkers measure your password security. Understand the algorithms, scoring systems, and whether it is safe to type your password into them.
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Is My Phone Hacked? 10 Warning Signs and How to Fix It
Learn the 10 warning signs that your phone may be hacked, from battery drain to strange texts. Step-by-step guide to check and fix a compromised phone.
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What Is a Data Breach? How It Happens and How to Protect Yourself
Understand what a data breach is, how companies get hacked, what data gets exposed, and the practical steps you can take to protect yourself right now.
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How to Stop Being Tracked Online: Complete Privacy Guide
A complete guide to stopping online tracking. Learn how websites, advertisers, and ISPs track you and the practical tools to protect your privacy.
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What Is Your Digital Footprint and Why Should You Care?
Learn what a digital footprint is, how it is created, why it matters for your privacy and security, and practical steps to reduce and manage it.
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How to Check If an Email Is Safe Before Opening It
Learn how to identify phishing emails, check suspicious senders, and verify if an email is safe. Practical steps to protect yourself from email scams.
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Best Free VPNs in 2026: Which Ones Are Actually Safe?
A honest look at free VPN services in 2026. Learn which ones protect your privacy and which ones sell your data.
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How to Check If Your Phone Is Hacked (10 Warning Signs)
Learn the 10 warning signs that your phone may be compromised and what to do about it immediately.
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VPN Speed vs Security: How to Get Both in 2026
Learn how to optimize your VPN for both speed and security. Understand protocols, server selection, and configuration tips.
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How to Stop Websites from Tracking You Online
Practical steps to reduce online tracking from advertisers, data brokers, and websites in 2026.
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Public WiFi Dangers: How Hackers Steal Your Data at Coffee Shops
Learn how attackers exploit public WiFi networks and what you can do to stay safe on shared connections.
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Credential Stuffing: Why Reusing Passwords Gets You Hacked
Understand how credential stuffing attacks work and why password reuse is the biggest security mistake you can make.
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SIM Swap Attacks: How Hackers Steal Your Phone Number
Learn how SIM swap attacks work, why they bypass SMS-based security, and how to protect your phone number from being stolen.
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Dark Web Monitoring: How to Check If Your Data Is Exposed
Learn how dark web monitoring works and how to check if your personal data is being sold on underground markets.
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IP Address Security: What Hackers Can Do With Your IP
Understand the real security risks of IP address exposure and practical steps to protect yourself.
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How to Spot Phishing Emails and Fake Websites
Learn to identify phishing attempts with practical examples of fake emails, spoofed websites, and social engineering tactics.
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HackMyIP vs WhatIsMyIPAddress: Full Comparison (2026)
Detailed comparison of HackMyIP and WhatIsMyIPAddress.com. Features, tools, privacy, speed, and which one is better for checking your IP.
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HackMyIP vs IPLeak.net: Which Finds More Leaks? (2026)
Comparing HackMyIP and IPLeak.net for VPN leak testing. DNS leaks, WebRTC leaks, fingerprinting, and which tool catches more.
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HackMyIP vs BrowserLeaks.com: Fingerprinting Comparison (2026)
Comparing HackMyIP and BrowserLeaks for browser fingerprint testing. Canvas, WebGL, fonts, screen, and privacy analysis.
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HackMyIP vs DNSLeakTest.com: DNS Testing Comparison (2026)
Comparing HackMyIP and DNSLeakTest.com for DNS leak detection. Standard test, extended test, and additional privacy features.
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