What exactly is DNS?
DNS stands for Domain Name System. Think of it as the contact list on your phone. You don't remember your friend's 10-digit number; you just search for their name. The internet works the same way. When you type airoichecker.com, DNS looks up the "phone number" (the IP address) of our server so your browser can find us. Without it, you’d have to memorize numbers like 142.250.190.46 for every site you visit!
Verify Propagation
Just moved your website to a new host? Use our tool to see if the world can see your new IP address yet.
Email Security
Check your MX and TXT records to ensure your business emails don't end up in the spam folder.
Common DNS records explained
When you run a lookup, you will see different "Types." Here is what they mean in simple English:
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A
A Record: Points your domain to an IPv4 address. This is where your website "lives."
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MX
MX Record: Tells the internet which server handles your emails. Wrong MX = No emails.
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TXT
TXT Record: Used for security notes like SPF and DKIM. It proves that you are the real owner of the domain.
"DNS propagation can take up to 48 hours to update globally, but usually, you'll see changes in our tool within a few minutes!"
Frequently Asked Questions
What is TTL (Time to Live)?
TTL is the "memory time" for a DNS record. It tells other computers how many seconds to remember your settings before they should check for an update again.
Can DNS records affect my SEO?
Indirectly, yes! If your DNS is slow or has errors, your website won't load, which makes Google unhappy. Keeping your records clean is great for SEO.
Is this tool free for everyone?
Yes, AirOI Checker provides this DNS lookup 100% free. You can check any domain in the world, as many times as you like.