Free tools
Free server & website tools
The same checks our engineers run every day: SSL, DNS, email, blacklists, uptime and more. Free, no sign-up, and we don’t store what you check.
SSL Certificate Checker
Expiry, issuer, chain and HTTPS redirect
Open tool
DNS Record Lookup
A, MX, TXT, NS, SOA and CAA records
Open tool
DNS Propagation Checker
What 12 resolvers worldwide return
Open tool
MX, SPF & DMARC Check
MX, SPF, DMARC and DKIM
Open tool
Email Blacklist Checker
Spamhaus, Barracuda, SpamCop and more
Open tool
Ping & Uptime Test
Is it up, and how fast it answers
Open tool
Website Score Checker
Speed, security headers and SEO basics
Open tool
WHOIS Domain Lookup
Registrar, expiry and nameservers
Open tool
Geo IP Locator
Country, network owner and ASN
Open tool
Reverse IP & PTR Lookup
PTR record and shared hosting
Open tool
Found a problem?
Our engineers fix SSL, DNS, email and server issues every day. Most small fixes are done the same day.