Understanding DNS Records: A, CNAME, TXT, and MX Explained

The Switchboard of your Domain

Buying a domain name (yourstartup.com) does absolutely nothing on its own. A domain is just an empty label until you configure its DNS Records inside the Zone Editor (found in cPanel, Cloudflare, or AmanaFlow Client Area).

If someone types your URL, a specific DNS record tells them where the website lives. If they send you an email, a completely different record routing the email.

1. The A-Record (Address Record)

This is the most fundamental record. It maps a hostname directly to an IPv4 Address.

• Name: @ (represents the root domain yourstartup.com)
• Type: A
• Value: 192.168.1.50 (The IP of your AmanaFlow VPS)

2. The CNAME (Canonical Name)

A CNAME never points to an IP address. It only points to another domain name. It acts like an alias.

• Name: www
• Type: CNAME
• Value: yourstartup.com (This means if someone visits www.yourstartup.com, the server automatically forwards them to the root A-Record without you needing to update the IP address twice).

3. The MX Record (Mail Exchange)

Web hosting and Email hosting are often completely separate servers. MX records tell the internet where to deliver emails addressed to @yourstartup.com.

• Name: @
• Type: MX
• Priority: 10
• Value: mail.yourstartup.com (or aspmx.l.google.com if using Google Workspace).

4. The TXT Record (Textual Data)

TXT records hold machine-readable text used to verify domain ownership. If you sign up for Google Search Console, Google will ask you to create a TXT record with a random code (google-site-verification=xyz...). Google's bots check your DNS; if they see the code, they know you own the domain.

TXT records are also absolutely critical for Email Deliverability (SPF, DKIM, and DMARC).

FAQs

Q: Can I have an A-Record and a CNAME for the exact same subdomain?
A: No. A CNAME record cannot coexist with any other record type for the same hostname. A CNAME essentially says "ignore everything else, just follow this alias." If you put an A-Record and a CNAME on the root @, your DNS will break entirely.