Overview
Your friendly side panel terminal! Learn how to diagnose DNS, SSL, and email infrastructure using simple, guided commands.
WhatHappened is a terminal emulator that lives in your Chrome side-panel for web infrastructure auditing. It provides a set of diagnostic tools for web developers and researchers to audit websites without leaving the active tab. All queries are executed locally, ensuring your diagnostic data remains private. WHAT CAN YOU DO? - Network Audits: Check DNS records (A, MX, TXT, CNAME) and verify DNSSEC. - Security Checks: Inspect SSL/TLS certificates and security headers (CSP, HSTS, etc.). - Stack Detection: Identify hosting providers and server-side technologies using live network data. - Environment Testing: Simulate different network conditions using throttling and user-agent overrides. CORE PRINCIPLES: - Local Execution: No servers, no tracking. Everything runs in your browser. - Open and Safe: Uses standard libraries like DOMPurify for sanitization. No hidden remote code. - POSIX-style: Supports basic piping (e.g., dig | grep) for simple data filtering. - Non-intrusive: Works from the Chrome Side Panel to keep your main window clear while you work. KEY FEATURES: - Commands: dig, host, map, ssl, headers-check, waf, cookies, vitals. - Sudo Mode: A simulated privilege layer to prevent running high-impact tools by mistake. - Guided Help: Every command includes technical context on what it does and when to use it. NO DATA COLLECTION: WhatHappened does not collect, store, or transmit any user data. It is a free tool for the developer community.
Details
- Version3.2.1
- UpdatedMay 16, 2026
- Size632KiB
- LanguagesEnglish
- Developer
Email
rop.martel@gmail.com - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
Support
For help with questions, suggestions, or problems, visit the developer's support site
