Packet.guru offers a comprehensive suite of free online network tools and utilities designed for developers and system administrators, also including deep mail security audits (SPF/DKIM/DMARC), JWT decoding, with a "terminal-modern" aesthetic. The core feature is the Privacy & Trust Index — a comprehensive audit that calculates a score (0-100) based on different parameters:
- Regional & Time Integrity.
- Device Integrity.
- Network Transparency.
- Browser Fingerprinting.
