Every web tool you need.
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WHOIS, DNS, domain checks, email diagnostics and more, free, no sign-up, results in seconds.
Domain Tools
WHOIS Lookup
Registration details, registrar, key dates and status for any domain.
Domain Availability Checker
Check a name across popular TLDs live, with smart alternatives.
Bulk Domain Checker
Check up to 50 domains at once and copy the available ones.
DNS Tools
DNS Records Lookup
Fetch A, AAAA, CNAME, MX, TXT, NS, SOA and CAA records for any domain.
DNS Propagation Checker
See a DNS record from many resolvers worldwide and spot stragglers.
Email Tools
MX Record Checker
Check a domain’s mail servers, priorities and whether they resolve.
SPF, DKIM & DMARC Checker
Audit the three email-authentication records and learn what to fix.
Blacklist Checker
Check a domain or IP against the major spam blocklists.
Email Deliverability Test
Send a test email and see its SPF, DKIM and DMARC verdicts the moment it arrives.
SPF & DMARC Record Generator
Build valid SPF and DMARC TXT records for your domain. Tick your senders, copy both records, paste them into DNS.
IP & Network Tools
What's My IP
See your public IP address, ISP, location and connection details instantly.
IP Location Lookup
Look up the location, ISP, ASN and timezone behind any IP address.
Reverse DNS Lookup
Find the hostname behind any IP, and check it is forward-confirmed.
Subnet Calculator
Network, broadcast, usable hosts and ranges for any IPv4 subnet.
Port Checker
Test whether common service ports are open on any host, covering web, mail, database and remote access ports, with a custom port option.
Website Tools
HTTP Headers Checker
Inspect any site’s response headers and get a security-header grade.
SSL Checker
Certificate validity, issuer, expiry countdown and chain status.
Website Speed Test
Full Lighthouse scores and Core Web Vitals for any page, mobile and desktop.
User-Agent Parser
See what your browser tells every website, or decode any user-agent string.
Uptime Monitor
Free uptime monitoring every 5 minutes, with an instant check whenever you need one.
Security Tools
Password Generator
Strong random passwords generated on your device. Nothing is sent or stored.
Free tools, growing steadily
WebSmart Tools launched in October 2026, and new tools and guides are added regularly. Everything here is free, needs no sign-up, and is built to give you a straight answer in seconds.