Subdomain finder
Find hostnames for your domain—public listings, export-ready.
LaneDNS
Multi-resolver DNS lookups, domain and email health scans, global speed tests, SSL checks, and developer utilities—accurate, fast, and free. No signup.
Search tools
Diagnostics
DNS Scanner
Full DNS health report in one scan.
Email Health
MX, SPF, DMARC, DKIM sweep, SMTP :25 probe, DNS blocklists, MTA-STS.
Speed Lab
Speed test.
Page Speed
Global load test: TTFB, score, resources, and tips.
Redirect check
Full redirect chain, status codes, loops, SEO hints.
Technical SEO Check
Metadata, indexing, HTTPS, redirects, TTFB, and mobile signals — fast developer audit.
Tech stack & CMS detector
Web server, CDN, CMS, frameworks, and common JS libraries from headers plus HTML fingerprints.
What is my IP? Lookup
Public IP address lookup, IPv4 & IPv6, geolocation map.
ASN / ISP lookup
ISP, ASN, and organization for a public IP—useful for abuse reports and debugging.
SSL check
TLS grade, chain, cipher & weak warnings, expiry, trust.
Port check
Is a TCP port open?
WHOIS
Domain registration lookup.
Ping
TCP ping: latency to host.
DNS lookup
Security & mail
Developer
JWT Decoder
Decode JWT header and payload.
Hash Generator
MD5, SHA-256 and more.
UUID Generator
Generate UUID v4.
Cron Generator
Build cron schedules and preview next run times.
cURL Tester
Paste a cURL command, send the request.
API Endpoint Tester
Send requests to any API URL.
JSON Formatter
Pretty-print JSON, minify, validate, and fix common paste errors.
Base64 Encode/Decode
Encode or decode Base64 text.
URL Encode/Decode
Encode or decode URL components.
QR Code Generator
Create QR codes in your browser. Colors and size.
Gamepad tester
HTML5 Gamepad API: sticks, axes, buttons, drift & rumble.