Free Network Tools & Guides
Your IP Address.
Explained. Secured.
Check your IP, test for VPN leaks, run DNS lookups, scan ports, and learn how the internet actually works — all in one place.
Your IP address
Detecting…
Tools
Everything runs in your browser
No signup, no installs. All tools are free and work instantly.
What Is My IP?
Your IP, ISP, location, hostname and connection type — instantly.
Network
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VPN Leak Test
Tests IP, DNS, WebRTC and IPv6 leaks — checks if your VPN is actually protecting you.
Security
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DNS Checker
Look up A, AAAA, MX, TXT, CNAME and SOA records. Compare Google vs Cloudflare DNS.
DNS
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Speed Test
Real download, upload, ping and jitter measurement — not an estimate.
Network
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Port Scanner
Real TCP scan of 26 common ports on any IP or domain. See what’s open.
Security
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WHOIS Lookup
Domain and IP registration info — registrar, owner org, creation date.
Network
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Bulk IP Lookup
Look up location, ISP and type for up to 20 IP addresses at once.
Network
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Subnet Calculator
CIDR notation, subnet masks, host ranges — calculated instantly.
Network
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Email Header Analyzer
Paste email headers to trace the sender’s IP and routing path.
Security
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Encoding Tools
Base64, MD5, SHA-256, URL encode/decode, Hex and JWT decoder.
Encoding
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IP Reputation & Blacklist Checker
Check if an IP address is blacklisted, flagged as malicious, or associated with spam, proxies, TOR or botnets.
Security
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Ping Test
Measure your latency, jitter and packet loss to global servers. Diagnose connection quality in real time.
Network
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Learn & Fix
Guides
Plain-English explanations — no technical background needed.
Networking Guides
60+ articles on IP, DNS and privacy
Privacy & VPN Guides
Hide your IP and stay private online
Latest
Recent articles
New guides added regularly — bookmark the articles page to stay updated.
Privacy
Your Private AI Chats Are Leaking — and Nobody Will Tell You
People tell AI chatbots things they have never told another human being. Health symptoms they’re frightened of. Marriages that are failing. Debts nobody knows about. Then, periodically, those conversations end up on the open internet.
Security
What Is IP Spoofing?
How attackers fake their IP address and the attacks it enables — explained clearly.
Error Fix · Windows
How to Fix “No Internet, Secured”
Connected to Wi-Fi but no internet. The most effective fixes for this Windows quirk.
Networking
What Is a Proxy Server?
How proxies differ from VPNs, when to use one, and what they can and can’t hide.
Privacy
What Is a VPN?
A plain-English explanation of how VPNs work, what they protect, and what they don’t.
How-To
How to Flush DNS Cache
Windows, Mac, iPhone and Android — the exact commands for every platform.