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How does the DNS server work?
- The user types the address of a website in the browser, e.g. https://example.com
- The browser sends a DNS query to the DNS server asking it to return the IP addresses for the selected example.com (domain’s tld nameserver)
- The DNS server in response returns the IP addresses of the server to which the indicated domain is assigned.
- The browser connects to the server with the specified IP address requesting to display the page for the domain https://example.com
DNS lookup process can is divided into separate DNS queries a recursive DNS server acts on behalf of the end host (a laptop, server, etc.) to find the IP address of a domain name that is not authoritative and return this information to the requesting end host. An authoritative DNS server user types an address into a web browser, or an application calls out to a given name of a resource on the Internet.
What does a DNS record consist of and what types of records there is?
DNS data is: Name and subdomain, Type of the records, Time to Live, Priority, and Value - define the value of a specific record. The most important types of DNS records are:
- A (Address) record 32-bit and 128 - bit
- CNAME - Canonical Name
- MX - Mail exchange record used to exchange and redirect email traffic.
- NS - Name Server address of the DNS server
- SOA - State of Authority - top level domain server
- TXT - text record - often used to verify ownership of a domain in Google applications.
Article author:
Sebastian Żarnowski
Co-founder & CEO
I have been involved in local marketing for years, starting my career at KS Agency, where I also initiated the Local SEO department. Currently, as a co-founder of Localo, I am developing a tool that helps local businesses reach their customers. I share my knowledge through blogs, webinars, social media, and YouTube videos. I focus on authenticity, a practical approach, and effectiveness to support the growth of local businesses and help them connect with their customers more effectively. I value unconventional thinking and am constantly seeking new solutions in marketing.