Product Introduction

Domain Pollution Handling is a product dedicated to addressing DNS pollution issues, featuring real-time monitoring, rapid repair, and effective prevention of DNS pollution and hijacking. It deploys over 100,000 network acceleration nodes to preemptively resolve domain names across six major national carriers and 31 provinces and regions, reducing the risk of domain pollution and hijacking. Additionally, the product handles varying degrees of domain DNS pollution and can restore access for up to 90% of users nationwide. It also offers advantages such as visual pollution handling reports, improved website access speed, real-time DNS pollution monitoring, and high-quality after-sales service.

Product Advantages

Domain Pollution Handling offers the following advantages:

• Effective Prevention of DNS Pollution: By deploying over 100,000 network acceleration nodes, the product preemptively resolves domain names across six major national carriers and 31 provinces and regions, reducing the risk of domain pollution and hijacking.

• Effective DNS Pollution Treatment: Handles varying degrees of DNS pollution and can restore access for up to 90% of users nationwide.

• Visual Pollution Handling Reports: Provides visual charts to intuitively compare DNS pollution treatment effects, displaying whether a domain is polluted, the extent of pollution, affected regions, and the level of pollution across the country.

• Improved Website Access Speed: The self-developed domain pollution handling engine reduces public DNS recursion processes, speeding up domain resolution and enhancing nationwide website access speed.

• Real-Time DNS Pollution Monitoring: Monitors website domain DNS pollution 24/7, sending alerts immediately upon detecting anomalies, with support for multiple alert methods such as WeChat and SMS.

• High-Quality After-Sales Service: Offers 400 hotline, online customer service, and 24/7 dedicated after-sales support to ensure timely resolution of customer issues.

The product is suitable for scenarios including DNS pollution, domain hijacking, inaccessible domain names, forced redirection, non-functional domain resolution, and slow website access. Currently, it does not support free trials but does offer free domain testing for DNS pollution.

Application Scenarios

The product's application scenarios include:

1. Preventing Website DNS Hijacking Pollution: Ensures normal website access by preventing DNS hijacking and pollution issues.

2. Real-Time DNS Pollution Monitoring: Continuously monitors DNS pollution for websites, promptly detecting and intercepting DNS hijacking pollution.

3. Resolving Issues of Domain Hijacking, Inaccessibility, Forced Redirection, Non-Functional Resolution, or Slow Access: Addresses these issues effectively with the domain pollution handling product.

Product Features

Domain Pollution Handling has the following features:

1. Real-Time Monitoring: 24/7 monitoring of website domain DNS pollution to promptly detect DNS pollution anomalies.

2. Rapid Repair: Quickly fixes DNS pollution and hijacking issues, ensuring normal access for up to 90% of users nationwide.

3. Effective Prevention: Reduces the risk of domain pollution and hijacking by deploying over 100,000 network acceleration nodes and resolving domain names across six major national carriers and 31 provinces and regions.

4. Pollution Handling: Provides targeted DNS pollution treatment based on the extent of domain DNS pollution.

5. Visual Reports: Offers visual charts to compare DNS pollution treatment results, showing domain pollution status, pollution proportion, affected regions, and the level of pollution nationwide.

6. Enhanced Access Speed: Improves website access speed nationwide by reducing public DNS recursion processes with the self-developed domain pollution handling engine.

7. Real-Time Alerts: Sends immediate alerts upon detecting DNS pollution anomalies, supporting various alert methods including WeChat and SMS.

8. High-Quality After-Sales Support: Provides 400 hotline, online customer service, and 24/7 dedicated after-sales support to resolve customer issues promptly.

The product is suitable for scenarios such as DNS pollution, domain hijacking, inaccessible domain names, forced redirection, non-functional resolution, and slow website access. Currently, it does not support free trials but offers free domain testing for DNS pollution.

Basic Concepts

Domain pollution (DNS pollution or DNS hijacking) is a technique that alters DNS resolution results to block users from accessing specific websites. It is typically implemented by Internet Service Providers (ISPs) or national firewalls to control and restrict network access. The basic concepts of domain pollution include:

1. DNS Resolution: When a user inputs a URL (e.g., www.example.com) into a browser, DNS translates the domain name into an IP address, allowing the user to connect to the target server.

2. Domain Pollution Mechanisms:

   • Tampering with DNS Responses: Alters the DNS server's response to replace legitimate IP addresses with incorrect or unreachable IP addresses, preventing users from accessing the target site.

   • Hijacking Requests: Redirects DNS requests to a fake DNS server that provides incorrect resolution results in some cases.

3. Purpose: Domain pollution is primarily used for:

   • Censorship and Control: Governments or organizations use DNS pollution to restrict access to certain websites or content, such as social media, news sites, or specific political content.

   • Network Security: Some ISPs use DNS pollution to block access to known malicious sites, protecting users from cyberattacks.

4. Mitigation Methods:

   • Using Encrypted DNS: Such as DNS over HTTPS (DoH) or DNS over TLS (DoT), which encrypt DNS requests to prevent tampering.

   • Using Public DNS Services: Like Google DNS or Cloudflare DNS, which typically do not engage in DNS pollution.

   • Using VPN or Proxies: By bypassing local DNS servers with a Virtual Private Network (VPN) or proxy server to access the target site directly.