Domain diagnostics

Light up thefirst connection.

Website unreachable? Check its addresses, aliases and delegation before investigating the connection.

Website accessPublic records · Query and inspect
FIRST CHECK

Check a website name

DNS / LIVE
Quick typesNo https:// or path

Start with the exact hostname of the website you are checking.

01ACheck the IPv4 address
02AAAAReview IPv6 settings
03CNAMEInspect the alias target
TROUBLESHOOTING

Follow the connection

Diagnostics ↗
01

A DNS checklist for an unreachable website

Work from the complete name to its addresses before moving further along the connection.

Read the guide →
02

Why the apex and www can return different answers

Check both entry points, and distinguish a DNS alias from a web redirect.

Read the guide →

Connection questions

Should I check the apex or www?

First check whether you are visiting example.com or www.example.com. These names can have different settings. Remove the scheme and path from the browser address, query just the hostname, and look for spelling mistakes or an incorrect environment prefix.

Does “All types” include every subdomain?

No. It queries common types for the name you enter. Subdomains, service records and email authentication records require their own complete names.

Why can this differ from my DNS control panel?

These answers come from a recursive resolver and can reflect its cache, proxy settings or provider-specific features. Compare TTL and the actual configuration; a single lookup is not a global propagation test.