CyberSight Security Toolkit
Visibility Beyond the Surface.
A fast, secure and reliable toolkit for security professionals and learners to dissect email headers, verify DNS/DKIM, and master regular expressions.
View ToolsAdvanced Analysis Tools
Email Header Analyzer
Analyze the technical metadata embedded in every email, providing clear insights into routing paths and authentication results.
Analyze an Email Header
DNS Checker
Query and inspect DNS, DKIM, and DMARC records to surface misconfigurations, and confirm your domains are resolving and authenticating correctly.
Validate a DNS record
Regex
Build and test regular expressions with real-time matching, a full pattern builder, and a built-in reference guide.