Route53

Amazon Route 53. Amazon Route 53 (Route 53) is a scalable and highly available Domain Name System (DNS). Released on December 5, 2010 , it is part of Amazon.com's cloud computing platform, Amazon Web Services (AWS). The name is a reference to TCP or UDP port 53, where DNS server requests are addressed.


The Domain Name System (DNS) is the phonebook of the Internet. Humans access information online through domain names, like nytimes.com or espn.com. Web browsers interact through Internet Protocol (IP) addresses. DNS translates domain names to IP addresses so browsers can load Internet resources.

                     Because domain names are alphabetic, they're easier to remember. The Internet however, is really based on IP addresses. Every time you use a domain name, therefore, a DNS service must translate the name into the corresponding IP address. For example, the domain name www.example.com might translate to 198.105.232.4

AWS supposedly named the service Route 53 because all DNS requests are handled through port 53, and the "route" piece resembles the historic "Route 66" of the USA. Presumably because DNS queries are handled on "well-known port" 53.

Is Route 53 free?

Get Started with AWS for Free. Receive twelve months of access to the AWS Free Tier and enjoy AWS Basic Support features including, 24x7x365 customer service, support forums, and more. Please note that Amazon Route 53 is not currently available on the AWS Free Tier.

What are different types of DNS records ?  and what is TTL record is ?

• TTL Record  - Time to Live in seconds.
• NS Records
• A records -  Address -  The A record is used by a computer to translate the name of the domain to the IP address
• CNAMES
• Alias Records

Ipv4  vs  IPv6

• The IPv4 space is a 32 bit field and has over  4 billion different addresses (4,294,967,296 to be precise).
• IPv6  was created to solve this depletion issue and has an address space of 128bits which in theory is  340,282,366,920,938,463,374,607,431,768,211,456 addresses
• or 340 undecillion addresses.

Route 53  Routing Policies :

• Simple
• Weighted
• Latency
• Failover
• Geolocation