Reverse DNS and PTR record

DNS

What is Reverse DNS? You probably know already what is a forward DNS. It links the hostname/domain to the IP address. Now think from the...

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What is Authoritative DNS server?

DNS

The authoritative DNS server is the final holder of the IP of the domain you are looking for. When you write a domain name in your browser,...

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A case study of the top 50 e-commerce sites and their DNS

DNS • 2 Comments

The recent Black Friday we again saw the news for record-breaking revenues and profits. Over the past few years, the web has gotten faster,...

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DDoS attacks and how to protect ourselves

DNS

DDoS Attacks are widespread threats on the internet. With the continually increasing numbers of connected devices and new innovative ways...

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What is backup DNS?

DNS

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What is Sender Policy Framework, and how to setup SPF record?

DNS

Have you ever received complaining messages from your users about emails sent to them from your email server, without your knowledge? Or...

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8 DNS tools for testing your servers

DNS • One Comment

You are already a DNS user, and your server or website works great when you visit it from your computer. But that is not enough. You want...

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