DNS Server

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DNS Server

A DNS (Domain Name System) server acts as the "phonebook" of the internet. It translates human-readable domain names (like www.example.com) into numerical IP addresses that computers use to identify each other on the network. When you type a website address into your browser, your device queries a DNS server to find the correct IP address, enabling your browser to connect to the website's server.


How Does Google Search Your Webpage?

Google uses an automated process to discover and display web pages:

  • Crawling: Google uses software called crawlers (or Googlebot) to systematically browse the web, discovering new and updated pages by following links and reading sitemaps.

  • Indexing: After crawling, Google analyzes the content, structure, and metadata of the page and stores this information in its index, a massive database.

  • Serving Search Results: When a user performs a search, Google retrieves relevant pages from its index and ranks them based on hundreds of factors, including relevance, authority, and freshness.

What Are Cookies?

Cookies are small files stored on your device by websites you visit. They are used to remember information about you, such as login status, preferences, or tracking data for analytics and advertising. Cookies help websites provide a more personalized and efficient user experience.

HTTPS

HTTPS (HyperText Transfer Protocol Secure) is an extension of HTTP that encrypts data exchanged between your browser and a website using SSL/TLS protocols. This ensures that sensitive information (like passwords or credit card numbers) is transmitted securely, protecting it from interception or tampering by third parties.

What Are Name Servers?

Name servers are specialized DNS servers responsible for storing and providing the authoritative DNS records for a domain. 

When a DNS query is made, name servers provide the necessary information (such as the IP address) to route users to the correct website.  

There are different types of name servers, including root, TLD (top-level domain), and authoritative name servers, each playing a role in resolving domain names to IP addresses.

How Does Server Mirroring Work?

  • Server mirroring involves maintaining exact copies (mirrors) of a website or server in multiple locations. 
  • This redundancy ensures high availability, load balancing, and disaster recovery.
  •  If one server fails or becomes overloaded, traffic can be redirected to a mirrored server, minimizing downtime and improving performance for users in different regions. 
  • Server mirroring is commonly used by large websites and content delivery networks (CDNs) to ensure reliability and fast access worldwide.

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