9 free tools
Tools for people running websites
No signup, no rate limits, no upsell. These run in your browser — the ones that look up DNS talk straight to public resolvers, so we never see what you check, and the rest work with no network at all.
DNS and domain tools
DNS Lookup
See every DNS record for a domain at once — A, AAAA, MX, TXT, NS, SOA and CAA.
DNS Propagation Checker
Query several independent public resolvers at once and see whether your DNS change has propagated.
Email DNS Checker
Check MX, SPF and DMARC in one shot and find out why your mail lands in spam.
Hosting utilities
Cron Expression Builder offline
Build and read cron schedules in plain English, with the next run times shown.
Hosting Requirements Calculator offline
Answer six questions and find out what hosting you actually need — including whether free is enough.
Password Generator offline
Generate strong random passwords in your browser, with a real entropy readout.
SEO and content tools
Server configuration generators
They cost us nothing to run — everything happens in your browser, not on our servers. We build them because people who need them often also need somewhere to put a website. That part is free too →