DNS Lookup, DNS Speed Check & Website DNS Check
DNS Speed Check
Compare real response times from major public DNS resolvers.
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When to use this
Run the DNS speed check when browsing feels slow on every site, after switching networks, or before picking a resolver for your router. Comparing Cloudflare, Google, and Quad9 from your own connection shows which public DNS is genuinely fastest for you.
DNS Record Lookup
Results will appear here…
When to use this
Use the record lookup when you migrate a domain to a new host (check the A record), when email stops arriving (check MX), or when a verification step asks for a TXT value. It shows exactly what any resolver will see for each record type, including the TTL that controls how long answers stay cached.
Website DNS Check
Instantly see which IP a domain points to and how fast it resolves.
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When to use this
Run a website DNS check when a site will not load, when you just pointed a domain at a new server, or when SSL warnings point to a misconfiguration. You get the IP address, TTL, and lookup time, which tells you whether DNS itself is the problem or the server is.
Features
- multi type record lookup: A, AAAA, MX, NS, TXT, CNAME, SOA
- Website DNS check with resolution time and TTL
- DNS resolver speed benchmark for Cloudflare, Google, and Quad9
- Live "checking" states on every query
Why use this tool?
DNS problems are silent until something breaks. Example: a new domain shows "site not found" because the A record still points at the old host. The website DNS check shows the stale IP immediately. Example: every website feels slow to open, and the speed check reveals your ISP resolver answering in 180 ms while public resolvers answer in 25 ms, so you switch resolvers.
What is DNS?
DNS, the Domain Name System, is how human readable names like example.com get translated into the numeric IP addresses computers actually use. Every time you open a website, your device asks a DNS resolver for the corresponding IP address. That lookup usually takes a few milliseconds, but slow DNS is a surprisingly common reason pages feel sluggish.
Why run a DNS speed check?
Your ISP's default resolver isn't always the fastest. Public resolvers like Cloudflare (1.1.1.1), Google (8.8.8.8), and Quad9 (9.9.9.9) often answer faster because they have bigger caches and faster infrastructure. Running a DNS speed check tells you which one performs best from your connection, so you can switch your router or device settings to the quickest option.
What a website DNS check tells you
A website DNS check resolves a domain and reports the IP addresses behind it, along with the TTL (how long the answer should be cached) and the lookup time. It's handy when a site "isn't loading", if DNS returns the wrong IP or no answer at all, the problem is on the DNS side, not the server itself. It's also the first thing to verify after moving a website to a new host: check that the A record points at the new server's IP.
Common DNS record types
- A, domain to IPv4 address
- AAAA, domain to IPv6 address
- MX, mail servers for the domain
- NS, authoritative name servers
- TXT, verification, SPF, DKIM, DMARC
- CNAME, alias to another name
- SOA, zone administrator info
FAQ
What is a good DNS response time?
Under 50 ms is great, 50–100 ms is fine, and consistently over 150 ms means your resolver is slow or congested.
Why does changing DNS improve browsing?
Every new domain requires a lookup. Faster resolvers shave milliseconds off each one, and they add up across a browsing session.
Is 1.1.1.1 or 8.8.8.8 faster?
It depends on where you are. Cloudflare tends to win in many regions, but the only reliable answer is to run the DNS speed check yourself.
Why do I get "DNS probe finished bad config"?
Your device can't reach its configured resolver. Flushing DNS cache or switching to a public resolver usually fixes it.