Web Administration Utilities
Web & DNS Tools
Free browser-based tools for DNS, email authentication, domains, SSL, redirects and everyday web administration.
Available tools
Choose a tool to get started.
DNS Lookup
Query common DNS records including A, AAAA, MX, TXT, CNAME and NS.
SPF Checker
Check a domain's SPF record and identify common configuration issues.
DMARC Checker
Check a domain's DMARC record, policy and common configuration problems.
MX Lookup
Find the mail exchange servers configured for a domain.
DKIM Checker
Check DKIM public-key records using a domain and selector.
SPF Generator
Build an SPF record from common mail providers, IP addresses and include mechanisms.
DMARC Generator
Generate a DMARC record with policy, reporting and alignment options.
SSL Certificate Checker
Inspect an HTTPS certificate, validity dates and common certificate details.
Redirect Checker
Inspect HTTP redirects and follow redirect chains for a URL.
HTTP Header Checker
View response headers returned by a website or URL.
WHOIS Lookup
Look up public registration and status information for a domain.
URL Shortener
Create shorter links for long URLs, with optional tracking features planned later.
About Web & DNS Tools
Free browser-based tools for DNS, email authentication, domains, SSL, redirects and everyday web administration. New utilities will be added as the collection grows.