A Domain Checker is an essential tool for anyone serious about email deliverability and domain security. It thoroughly examines your domain's status and health, identifying any potential issues that could affect your email campaigns. With Smartlead's Domain Checker, you can:

1. Secure your domain and prevent illegal use and unauthorized access.
2. Solve delivery and spam problems; land in primary inbox. 
3. Guard against spoofing attacks that can damage your reputation.

Smartlead's Domain Checker simplifies the process of maintaining your domain's health and security. First, you enter your domain name into the tool. It then performs a comprehensive scan, checking for vulnerabilities, spam issues, and potential spoofing threats. You will receive an in-depth report highlighting any problems along with actionable steps to resolve them.

Email Bounce Rate Formula:

Calculate the percentage of undelivered emails easily.

Email Bounce Rate = (Total Bounced Emails ÷ Total Attempted Emails) x 100

What does it mean?
‍
Total Bounced Emails: The number of emails that were not accepted by recipients' inboxes. Bounces can happen for various reasons, such as full inboxes or invalid email addresses.

‍Total Attempted Emails: The total number of email addresses you tried to send emails to, including those that bounced. This is also known as "Sent Emails" in some email platforms.

• www is the subdomain and is an identifier of the record.

• CNAME is the DNS record type.

• com is the value of the record. That means www will resolve to the IP address of the domain abc.com.

• 3600 is TTL (time to live) is the expiry time of the CNAME record. It's expressed in seconds. Here 3600 means that the records will be updated after each hour.