$
security-tools --list
Security Tools
Select a tool below — SSL, DNS, breach checks, port scanner, TOTP, and more. No account required.
SSL Certificate
Expiry · Chain · Grade
HTTP Headers
HSTS · CSP · Score
Breach Check
k-Anon · HIBP · Private
Responsive Test
Mobile · Tablet · Grid
Spam Check
Headers · Score · Flags
MX / Auth
SPF · DKIM · DMARC
DNS Lookup
A · MX · TXT · NS
DNSBL Check
Blacklists · Spam · IP
Whois / RDAP
Registrar · Expiry · NS
Password Gen
Strong · Memorable · Bulk
Base64 / Hash
Encode · Decode · SHA
JWT Decoder
Header · Payload · Expiry
Port Checker
TCP · Firewall · Open/Closed
IP Info / ASN
ASN · ISP · Cloud · Geo
Redirect Tracer
Hops · Status · Headers
TOTP Generator
2FA · Live · Client-side
Diff Tool
Compare · Changes · Config