Online Privacy Check: Test Your VPN, DNS, WebRTC and Fingerprint
An online privacy check shows what your browser and IP reveal. Learn what each of SpeedIQ's 18 checks tests, how to read the results and what to fix first.
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Guides on internet speed, Wi-Fi and online privacy, from the makers of the SpeedIQ speed test.
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SpeedIQ Case: How to Measure VPN Speed Without Fingerprint Bias
Measure VPN speed without fingerprint bias: keep network and browser signals apart, test with a baseline, and learn what a VPN can and cannot hide.
Speed Test vs WiFi Test: Why They Don’t Match (2026)
Speed test vs WiFi test: why the results differ, what each one measures, how router and network setup change the numbers, and how to test accurately.
WireGuard vs OpenVPN: Which VPN Protocol Should You Choose in 2026?
WireGuard vs OpenVPN compared: speed, security, code size, firewalls and privacy. Learn which VPN protocol fits gaming, streaming or censored networks.
ISP Throttling Test: Is Your ISP Throttling Netflix or YouTube in 2026?
Run an ISP throttling test in minutes: compare Fast.com with a general speed test, use a VPN check, Stats for nerds and Wehe to spot slowed streams.
Localhost Tracking: How Meta Bypassed Android Privacy
How localhost tracking let Meta Pixel and Yandex link mobile web visits to Android app users, why VPNs and incognito failed, and how to stay safe.
5G Home Internet vs Fiber: Real Performance Comparison for 2026
5G home internet vs fiber with 2026 data: median speeds, upload, latency, evening slowdowns and when 5G is the better choice for your address.
Adblock Detection: How Websites Know You Are Blocking Ads
Adblock detection uses bait elements and bait requests to spot your ad blocker. Learn how the detector scripts work and what they reveal about you.
Audio Fingerprinting: How the Web Audio API Tracks Your Device
Audio fingerprinting uses the Web Audio API to turn a silent test tone into a device ID. Learn how it works, how common it is and how to block it.
HTTP Headers Fingerprint Explained: What Your Browser Reveals With Every Request
Which HTTP headers your browser sends, what User-Agent, Accept-Language and client hints reveal, and how browsers reduce this fingerprint.
Tor Browser Privacy Guide: How It Works, What It Protects, and Correct Usage
How Tor Browser privacy works: onion routing, what it hides from your ISP and websites, what it does not protect, and how to use Tor safely.
Brave vs Firefox vs Tor: The 2026 Privacy Browser Comparison
Brave vs Firefox vs Tor compared: tracker blocking, fingerprint protection, IP hiding, speed and site compatibility, and which browser fits which threat.
IP Address Lookup: What Your IP Reveals and How to Protect It
An IP address lookup shows your location, ISP and network type. Learn what your IP reveals, how accurate a lookup is and how to hide your IP address.
Why Is My Internet Slow at Night? Causes and Fixes (2026)
Internet slow at night? Peak-hour congestion from 7 to 11 p.m. is the usual cause. Learn how to test it and fix Wi-Fi, bufferbloat and throttling.
IPv6 Leak Test: What It Is, How to Detect It, and How to Fix It
Run an IPv6 leak test to see if your real IPv6 address shows while your VPN is on. Learn why IPv6 leaks happen and how to fix them on Windows and macOS.
Geolocation API Privacy: What Websites Know About Your Location and How to Stay Private
The Geolocation API shares your exact position only with your permission, but your IP still reveals your area. Learn how to control location data.
Bufferbloat: What It Is and How to Fix It in 2026
Bufferbloat makes your internet lag under load even when speed tests look fast. Learn how to test for bufferbloat and fix it with SQM, Cake or QoS.
Mesh WiFi vs Extender: Which Actually Fixes Slow WiFi in 2026?
Mesh WiFi vs extender: how each works, why a range extender often halves speed, when mesh is worth it, and how to test the result in every room.
Browser Fingerprinting Explained: How Websites Track You Without Cookies
Browser fingerprinting tracks you without cookies. Learn what data sites collect, why incognito and VPNs don't help, and how to reduce your fingerprint.
TLS Fingerprint JA3 and JA4 Explained: What They Reveal About Your Browser
What a TLS fingerprint is, how JA3 and JA4 turn the ClientHello into a hash, who uses them for bot detection, and why a VPN does not change them.
What Is Good Ping for Gaming? Latency Guide by Game Genre (2026)
Good ping for gaming is under 50 ms; under 20 ms suits esports. See ping values by game genre, what causes high ping and how to lower it.
Canvas Fingerprinting Test: How It Works and How to Protect Your Browser
Canvas fingerprinting turns how your browser draws a hidden image into an ID. See how it works, how unique it is and how to test and block it.
DNS Leak Test: What It Is, How to Check, and How to Fix It
Run a DNS leak test to see if your VPN leaks DNS queries to your ISP. Learn what causes DNS leaks, how the test works and how to fix them on Windows.
How to Improve WiFi Speed: 15 Proven Methods for 2026
Improve WiFi speed with 15 tested fixes: router placement, 5 GHz, channels, firmware, QoS, Ethernet and mesh. Find the real bottleneck first.
Fiber vs Cable Internet: Real Speed, Latency, and Reliability Compared
Fiber vs cable internet compared with FCC data: upload speed, latency, peak-hour consistency and reliability. Which one fits gaming and remote work?
VPN Speed Test Guide: How to Measure and Improve Your VPN Performance
Run a fair VPN speed test: measure a baseline, compare download, upload and ping with the VPN on, and learn which protocol keeps most of your speed.
What Is a WebRTC Leak? How to Test and Fix It in 2026
A WebRTC leak can expose your real IP address behind a VPN. Learn how the leak works, how to run a WebRTC leak test and how to fix it in each browser.
Font Fingerprinting: How Your Installed Fonts Track You Online
Font fingerprinting detects your installed fonts and measures text to track you without cookies. See how it works and how Brave, Firefox and Tor block it.
WebGL Fingerprinting: How Your GPU Identifies You Online
Your WebGL fingerprint reveals your GPU and how it renders 3D. Learn how websites read it, how unique it is and how to hide or reduce it in your browser.
How to Test Internet Speed — The Complete 2026 Guide
How to test internet speed the right way: wired vs. Wi-Fi, three runs, peak hours, and what download, upload, ping and jitter tell you.