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Internet Basics
What is DNS over TLS?
DNS over TLS, often called DoT, is a way of sending DNS queries over an encrypted TLS connection so DNS traffic is more secure and private than plain DNS.
What it is
DoT is an encrypted DNS transport method that adds TLS protection to DNS communication.
Cloudflare explains that DoT is a standard for encrypting DNS queries to keep them secure and private.
How it works
DoT sends DNS traffic over a TLS-protected connection, commonly using port 853.
This helps protect DNS requests and responses from easier observation or tampering while they move over the network.
Why it matters in real life
DoT matters because traditional DNS is plaintext by default.
Encrypting DNS traffic can improve privacy and reduce some risks from interception or manipulation.
Common misconceptions
A common misconception is that DoT and DoH are exactly the same thing. They pursue similar goals but use different transport styles.
Another misconception is that encrypted DNS removes the need for other security controls. It helps, but it is one layer in a bigger picture.
Related questions
What is DoT in simple terms?
It is DNS sent over a TLS-encrypted connection.
Does DoT use the same port as HTTPS?
No. It is commonly associated with port 853 rather than normal HTTPS port 443.
What to learn next
Why this matters
What is DNS over TLS? matters because it helps people understand how an important technical idea affects systems, apps, security, websites, devices, or real-world decisions. Learning the term makes nearby concepts much easier to follow.
Who this is for
This page is for beginners, business owners, technical learners, and curious readers who want a practical explanation before going deeper into advanced details.
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Frequently Asked Questions
What does this mean in simple terms?
What is DNS over TLS? is easier to understand when you look at the role it plays and the problem it helps solve.
Why is this important?
Because understanding it helps you make sense of related tools, settings, systems, and comparisons.
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