Overview of Domain Name Resolution Services
Overview of Domain Name Resolution
Domain name resolution is a fundamental network service that converts domain names into IP addresses, serving as the first step of internet access. We provide high-performance, stable, and secure DNS resolution solutions that support intelligent multi-line resolution, custom TTL, and multiple record types such as A, CNAME, and MX, to meet the diverse application needs of websites, email systems, cloud services, and more.
The Racent platform provides free domain name resolution services. If you require higher performance and security, you can upgrade to a paid resolution service plan.
Common DNS Record Types
| Record Type | Full Name/Meaning | Usage Description |
|---|---|---|
| A | Address Record | Resolves a domain name to an IPv4 address, for example 192.0.2.1; the most commonly used record type. |
| AAAA | IPv6 Address Record | Resolves a domain name to an IPv6 address, for example 2001:0db8:0dd0:1. |
| CNAME | Canonical Name Record | Points a domain alias to another domain name. |
| TXT | Text Record | Stores arbitrary text, used for verification, SPF, DKIM, DMARC, etc. |
| MX | Mail Exchange Record | Defines the address of the mail server that receives emails for the domain, with configurable priority. |
| NS | Name Server Record | Specifies the authoritative DNS servers for the domain; at least two NS records are required. |
Common Domain Name Resolution Application Scenarios
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Website Access Resolution
Resolving the domain name entered by users to the IP address of the website server is a prerequisite for web pages to open normally. Whether it is a corporate official website, personal blog, or e-commerce platform, all access relies on DNS resolution.
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Enterprise Email Service
Configure MX records, SPF, DKIM, DMARC, etc., to enable mail servers to send and receive emails normally through DNS resolution, improve email delivery rates, and prevent emails from being identified as spam.
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API Services and SaaS Platforms
Resolve domain names for API interfaces to route requests to backend services or load balancers, ensuring stable service responses.
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Content Delivery Network (CDN) Acceleration
Use CNAME records in conjunction with CDN to direct user traffic to CDN nodes, achieving global content delivery acceleration and improving access speed and user experience.
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Multi-Service Deployment with Subdomains
Use A/CNAME records to point different subdomains to different business modules or servers, such as blog.example.com, shop.example.com, etc.
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Domain Forwarding and Promotion
Use the URL forwarding feature to redirect short domain names to actual promotion addresses, suitable for scenarios such as brand promotion and event marketing.