Frequently asked questions
Everything people ask about DNS Blade — pricing, privacy, accuracy, and how we compare.
＋Is DNS Blade really free?
Yes — every tool, every feature, unlimited. No trial, no paywall, no ads. If we ever add a paid tier it will only unlock scale (higher API limits, saved reports), never core functionality.
＋Do I need to sign up?
No. There is no account system. Nothing you do is tied to an identity.
＋How accurate are the DNS results?
We query 20+ authoritative and public resolvers in parallel (Google, Cloudflare, Quad9, OpenDNS, and regional ISP resolvers) and show you exactly what each one returned. Results reflect real-world propagation, not a single cached view.
＋Where does the WHOIS / IP data come from?
WHOIS uses the RDAP protocol against the authoritative registry for each TLD. IP geolocation and ASN data come from MaxMind and RIPE, updated weekly.
＋Do you log the domains I look up?
Server-side lookups appear in aggregate request logs (URL + status + timestamp) for 30 days for abuse prevention. We don't build user profiles and we don't sell logs. See the privacy policy for detail.
＋Can I use these tools commercially?
Yes. Freelancers, agencies, SREs, and enterprise teams all use DNS Blade in production workflows. See the terms of service for acceptable use.
＋Do you offer an API?
Not publicly yet. If you need programmatic access for a specific tool, email us — we're prioritizing endpoints based on demand.
＋How is DNS Blade different from MXToolbox or WhatsMyDNS?
We're free, ad-free, and modern. All tools live under one keyboard-navigable interface, results are shareable via clean URLs, and everything that can run in your browser (hashing, JWT, password checks) does — so your sensitive input never touches our servers.
＋Which tools are private / client-side?
JSON formatter, regex tester, hash generator, JWT decoder & builder, password generator, password strength (uses HIBP k-anonymity), QR generator, ID generator, cron parser, and every text tool. If the URL doesn't need to leave your browser, it doesn't.
＋Something is broken. How do I report it?
Email contact@dnsblade.com with the URL and a screenshot, or open an issue on GitHub. We usually ship fixes within 1–2 days.