Smart Tools for the Web
Fast, simple and reliable online tools for DNS, domains, IP addresses and websites.
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DNS Lookup
View DNS records for any domain.
→DNS Propagation
Check DNS resolution from multiple locations.
→MX Lookup
Find mail exchange records for a domain.
→A Record Lookup
Find IPv4 addresses associated with a domain.
→NS Lookup
Find the authoritative nameservers.
→TXT Lookup
Check TXT records and domain verification data.
→Find the right tool quickly
Explore AICores tools by category.
DNS & Network
DNS lookup, records and network utilities.
12 Tools →Domain Tools
Domain and nameserver utilities.
Coming Soon →IP Tools
Useful tools for IP addresses and networks.
Coming Soon →Website Tools
Check websites, SSL and HTTP information.
Coming Soon →Developer Tools
Practical utilities for developers.
Coming Soon →PDF Tools
Convert, compress and manage PDF files.
Coming Soon →What is DNS?
DNS stands for Domain Name System. It helps translate domain names into information that computers use to connect to internet services.
DNS records can contain information about websites, mail servers, nameservers and other internet services.
Learn more about DNS →Built for simple, useful web utilities
Fast
Get useful results without unnecessary steps.
Simple
Clean interfaces designed to be easy to understand.
Privacy-conscious
We aim to process only the information required for each requested tool.
Free Tools
Core utilities are available without requiring an account.
Learn how the web works
What is DNS and how does it work?
A simple explanation of the Domain Name System.
Read guide → 02What is an A Record?
Learn how A records connect domains to IPv4 addresses.
Read guide → 03What is an MX Record?
Understand how domains identify mail servers.
Read guide → 04What is DNS Propagation?
Understand why DNS changes may take time to appear.
Read guide →Frequently asked questions
What is a DNS lookup?
A DNS lookup queries DNS information associated with a domain, such as A, AAAA, MX, NS and TXT records.
How long does DNS propagation take?
DNS changes can appear at different times depending on caching and TTL values. Different resolvers may return different results during this period.
What is an MX record?
An MX record identifies the mail servers responsible for receiving email for a domain.
What is the difference between A and AAAA records?
An A record maps a domain to an IPv4 address, while an AAAA record maps a domain to an IPv6 address.
Are AICores tools free?
AICores is designed to provide core online utilities without requiring an account.
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Explore our growing collection of simple, useful web utilities.
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