Alibaba Cloud DNS

A secure, fast, stable, and reliable authoritative Domain Name System (DNS) service. Alibaba Cloud DNS helps enterprises and developers convert human-readable domain names into machine-readable IP addresses and then routes user requests to required website or application servers.

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Alibaba Cloud DNS is a secure, fast, stable, and reliable authoritative DNS service. It helps enterprises and developers convert human-readable domain names into machine-readable IP addresses and then routes user requests to required website or application servers.

Benefits

Stability and Reliability
Delivers SLA-guaranteed service availability of 100% to ensure that your websites or applications run stably.
Security
Processes up to hundreds of millions of DNS queries per second and protects your websites or applications against DNS attacks.
Intelligent DNS Resolution
Returns IP addresses based on your geographical locations. Resolution lines cover 6 major Internet Service Providers (ISPs) and their provincial branches in China, 6 continents and 88 countries and regions outside China.
Global Nodes
Provides 20 DNS cluster nodes worldwide and the DNS smart acceleration service to allow you to access the closest nodes with low latency.

Features

  • Basic Resolution

    Record Types

    Supports the following types of DNS records: A, AAAA, CAA, MX, CNAME, TXT, NS, and SRV.


    URL Forwarding (302 Redirect)

    Supports up to 10 implicit or explicit URL forwarding records.


    Subdomain Management

    Supports independent authorization management for second-level and third-level subdomains. The number of DNS records for subdomains is unlimited.


    Minimum TTL

    Allows you to set the minimum time to live (TTL) to 1 second for the changes to DNS records to take effect.


    Load Balancing

    Supports up to 90 IP addresses that are used for load balancing in a single line of a domain name.


    Weighted Round-robin

    Supports A and CNAME records.


    Query Statistics

    Collects statistics of DNS queries for primary domain names and subdomain names.

  • Intelligent DNS Resolution

    ISP Lines

    Supports China Unicom, China Telecom, China Mobile, CERNET, Dr. Peng Telecom & Media Group, and China Broadcasting Network.


    Subdivided ISP Lines

    Supports 6 major ISPs, which cover 31 provinces.


    Region Lines

    Supports Central China, North China, Northeast China, East China, South China, Southwest China, Northwest China.


    Subdivided Region Lines

    Supports 7 regions in China, which cover 31 provinces.


    Lines Outside China

    Supports Oceania, Asia, Europe, North America, South America, and Africa.


    Subdivided Lines Outside China

    Supports 6 continents, which cover 88 countries and regions.


    Custom Lines

    Supports intelligent DNS resolution for lines based on custom IP address ranges.

  • DNS Security

    DNS Query Attacks

    Supports real-time attack detection and abnormal traffic handling, and processes up to hundreds of millions of DNS queries per second.

  • Secondary DNS

    Disaster Recovery and Backup

    Secondary DNS provides disaster recovery and backup for your DNS. If your DNS server fails, the secondary DNS server can continue to provide DNS services to ensure that your business system is still accessible.


    Load Balancing

    To achieve load balancing, you can use the secondary DNS server and your DNS server to provide DNS services at the same time. To protect your DNS server, you can use only the secondary DNS server to provide DNS services.


    Secure and Effective Resolution

    Secondary DNS provides efficient DNS services based on the global node distribution of Alibaba Cloud DNS, and protects your websites or applications against DDoS attacks.

  • DNS Monitoring

    Wide Coverage of Nodes

    Deploys more than 1,000 nodes in China. These nodes are distributed in the provinces and regions of major ISPs in China.


    Real-time Monitoring and Alerting

    Performs 24/7 monitoring to promptly identify exceptions and send alerts to O&M personnel.


    DNS Hijacking Mitigation

    Monitors the domain name hijacking status in real time to reduce the probability of DNS hijacking to a certain extent.


    Rapid DNS Resolution

    Reduces the recursive process of public DNS servers to accelerate DNS resolution.

  • DNS over IPv6

    IPv6 Support

    Supports IPv6-based AAAA records and provides DNS servers that support access from IPv6 addresses.

  • Batch DNS Resolution

    Fast and Efficient Processing

    Improves DNS resolution efficiency by processing batch tasks asynchronously in the background at high speed. Up to 10,000 DNS records can be processed within 10 minutes.


    Comprehensive Features

    Provides flexible batch DNS resolution. You can add, modify, and delete multiple DNS records at a time. It also allows you to manage domain names in groups, host domain names that are not registered at Alibaba Cloud, and delete multiple domain names at a time.


    Capability Opening

    Uses APIs that are dedicated for batch DNS resolution. These APIs are used for custom DNS resolution and provide you with reliable domain name resolution capabilities. For more information, see API Reference in Document Center.

  • Global Nodes

    Nodes in China

    China (Zhangjiakou-Beijing Winter Olympics), China (Beijing), China (Shijiazhuang), China (Chengdu), China (Wuhan), China (Shanghai), China (Hangzhou), China (Shenzhen), and China (Hong Kong)


    Nodes Outside China

    Japan (Tokyo), Singapore, Malaysia (Kuala Lumpur), US (Virginia), US (Silicon Valley), UAE (Dubai), Australia (Sydney), India (Mumbai), Germany (Frankfurt), Indonesia (Jakarta), and UK (London)

Typical Scenarios

Multi-line Intelligent DNS Resolution

Uses health checks of applications and DNS routing technologies such as weighted round-robin and geolocation DNS (GEO DNS) to automatically block failures and implement failovers.

Benefits

  • Distributed Health Check

    Monitors applications in different regions in real time to detect downtime and exceptions in a timely manner.

  • Multi-line Load Balancing

    Uses load sharing and weighted round-robin algorithms to route access traffic to ideal service nodes based on your business requirements.

  • Automatic Blocking of Failure IP Addresses

    Automatically blocks the IP addresses where faults occur to reduce the downtime caused by the faults.

Defense Against DNS Query Attacks

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Benefits

  • Anti-DDoS Protection

    Prevents service interruptions caused by massive DNS resolution requests sent to victim DNS servers.

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  • Hundreds of Millions of DNS Queries per Second

    Resolves the issues of high business traffic and high QPS resolution requests in large-sized enterprises.

Upgraded Support For You

1 on 1 Presale Consultation, 24/7 Technical Support, Faster Response, and More Tickets.

1 on 1 Presale Consultation

Consulting by experienced cloud experts. Learn More

24/7 Technical Support

Extended service time from 10 hours 5 days a week to 24/7. Learn More

6 Free Tickets per Quarter

The number of free tickets doubled from 3 to 6 per quarter. Learn More

Faster Response

Shorten after-sale response time from 36 hours to 18 hours. Learn More