packet.guru LogoPACKET.GURU
Network
Ping
Test network connectivity
Traceroute
Trace route to host
Whois
Domain and IP information
Port Scan
Scan open ports (limited)
IP Geolocation
Get IP location information
DNS
DNS Lookup
Resolve domain to IP
DNS Propagation Checker
Check DNS propagation worldwide
Reverse DNS
Reverse DNS lookup
MX Lookup
Mail exchange records
TXT Lookup
Text records lookup
NS Lookup
Name server records
Mail Security
Complete email security audit
WEB
URL Encoder
Encode URL strings
URL Decoder
Decode URL strings
HTTP Header Checker
Check HTTP headers
SSL Certificate Checker
Check SSL certificate
ECH Checker
Inspect Encrypted Client Hello deployment
Subdomain Finder
Find subdomains (limited)
Hash Generator
Generate MD5, SHA256, etc.
JWT Decoder
Client-side Expert JWT Analysis
Utility
Base64 Encode/Decode
Encode and decode Base64
IPv4 Calculator
IPv4 subnet calculator
IPv6 Calculator
IPv6 subnet calculator
UUID Generator
Generate UUIDs
Password Generator
Secure password generator
Epoch Time Converter
Convert Unix Timestamp to Date
AGENTS
Agent Verifier
Check a signed request: what verified, what failed, what to change.
Directory Verifier
Check a key directory against the draft, rule by rule.
MCP server
Endpoint, client config, and the one tool it exposes.
Implementation guide
Key, directory, signature, check. Step by step, with the usual mistakes.
Response reference
Every field in the answer, and all faults grouped by subject.
Server Card Checker
Check an MCP server card and AI catalog, from the domain to the live server.
BLOG
Your IP:216.73.216.219
More
root@packet-guru:~/archive/blog

SYSTEM LOGS

Technical analysis, security research, and network utility documentation.
Access Level: Public

root@archive:~$grep-i
LOG_ID: VPN-TEST2026-10-22
PRIVACYREAD_TIME: 16 MIN

VPN Test: How to Check If Your VPN Is Working and Not Leaking

A VPN test in five checks: confirm your VPN is on, run an IP leak test for DNS, WebRTC and IPv6, test the kill switch, and see why sites still detect a VPN.

READ_LOG→
LOG_ID: WEBRTC-LEAK2025-12-24
SECURITYREAD_TIME: 10 MIN

WebRTC Leak Test: Prevent Real IP Exposure Strategy

When WebRTC still exposes your real IP behind a VPN or proxy, how to test for it, and the exact setting that stops it in Chrome, Brave, Firefox and Safari.

READ_LOG→
//Recommended logs
  • 2026-07-01The Fake Browser: How Sites Catch Bots and Anti-Detect Tools
  • 2026-08-20Agent Verifier: See Your Signed Request the Way a Server Sees It
  • 2026-01-10Instagram API Breach 2026: 17M Accounts Leaked
  • 2026-01-31PromptLock: The Rise of Vibe Hacking and AI-Powered Ransomware
//Check yourself

One scan shows what your connection and browser give away.

Privacy & Trust Index →
//System status
DB_STATUS:ONLINE
TOTAL_LOGS:31
LAST_UPDATE:2026-10-22
INDEX_INTEGRITY:100%
ACTIVITY_STREAM:
Scanning... Indexing... 0x4F3A...

Network

  • Ping
  • Traceroute
  • Whois
  • Port Scan
  • IP Geolocation

DNS

  • DNS Lookup
  • DNS Propagation Checker
  • Reverse DNS
  • MX Lookup
  • TXT Lookup
  • NS Lookup
  • Mail Security

WEB

  • URL Encoder
  • URL Decoder
  • HTTP Header Checker
  • SSL Certificate Checker
  • ECH Checker
  • Subdomain Finder
  • Hash Generator
  • JWT Decoder

Utility

  • Base64 Encode/Decode
  • IPv4 Calculator
  • IPv6 Calculator
  • UUID Generator
  • Password Generator
  • Epoch Time Converter

Agents

  • Agent Verifier
  • Directory Verifier
  • MCP server
  • Implementation guide
  • Response reference
  • Server Card Checker

Content

  • About
  • Blog
  • RSS Feed
  • Privacy Policy
  • Terms of Use
  • AI Context
© 2025-2026packet.guru•
Loading Contact...
•[Privacy & Trust Index]
Independent project. Not affiliated with Packet Guru LLC.