Free IT & security tools
The same quick checks our engineers run every day, free for anyone to use. No sign up, no tracking of what you look up, and the browser-side tools never send your data anywhere.
SPF, DKIM & DMARC CheckerIs your email domain protected against spoofing? Check SPF, DKIM and DMARC and get a plain-English verdict.Runs in your browserOpen Email Header AnalyserTrace where an email really came from, how long it took and whether SPF, DKIM and DMARC passed.Runs in your browserOpen DNS LookupMX, A, TXT, CNAME, NS, SOA and CAA records for any domain, or the reverse record for an IP.Runs in your browserOpen Whois LookupRegistrar, registration and expiry dates, nameservers and abuse contact for a domain or IP range.Live lookupOpen What Is My IPYour public IP address, where it appears to be, and which provider it belongs to.Live lookupOpen IP Address LookupWhere an IP address is, who owns it, its network and reverse DNS.Live lookupOpen Password GeneratorStrong random passwords, memorable passphrases and GUIDs, generated on your device.Runs in your browserOpen
Want someone to run these checks for you, every day?
Our Microsoft 365 management and monitoring service watches your tenant every few minutes: email domain security, risky sign-ins, MFA gaps, external file sharing and more, with a plain English monthly report you can act on. Accountants and solicitors can start with the free tier.