DNS Tools & Guides

DNS is the internet's address book, turning names into IP addresses. These tools let you inspect any domain's records, and the guides explain how to speed up and secure your own DNS.

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DNS tools

DNS LookupA, AAAA, CNAME, NS, TXT records.Reverse DNSIP → hostname (PTR) lookup.MX LookupMail server (MX) records.SPF & DMARCEmail security TXT records.DNS PropagationCompare records across resolvers.NS LookupFind a domain's name servers.CNAME LookupCheck CNAME alias records.TXT LookupCheck TXT records.WHOIS LookupDomain registration details.

DNS guides

What Is DNS?DNS is the internet's address book. Here's what it does, how a lookup actually works behind the scenes, and why it matters for speed and privacy.5 min readHow to Change Your DNS ServerSwitching to Cloudflare or Google DNS can speed up browsing and add privacy. Step-by-step instructions for Windows, Mac, your router, iPhone, and Android.6 min readHow to Flush Your DNS CacheFlushing the DNS cache fixes stale records and 'site won't load' problems. Clear, copy-paste steps for Windows, macOS, and Chrome.4 min readThe Best Free DNS ServersA short, honest list of the best free public DNS servers for speed, privacy, and family filtering, with the exact addresses to use.5 min readWhat Is DNS over HTTPS?DNS over HTTPS encrypts your DNS lookups so nobody can snoop on or tamper with the sites you visit. Here's how it works and how to turn it on.4 min readGoogle DNS vs Cloudflare DNS8.8.8.8 or 1.1.1.1? Compare Google and Cloudflare's public DNS on speed, privacy and features, and learn how to switch.5 min readThe Best DNS for GamingDNS won't lower your in-match ping, but the right one speeds up menus and matchmaking. Here are the best options and how to set them.4 min read

Frequently asked questions

Should I change my DNS?

It's a simple, reversible tweak that can speed up the first connection to new sites and add privacy. Cloudflare (1.1.1.1) and Google (8.8.8.8) are the popular free choices.

What's a DNS lookup?

It's a query that finds the records tied to a domain, such as its IP address or mail servers. Use the DNS lookup tool to check any domain.

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