Reverse DNS is a service that associates IP addresses with domain names. While regular Forward DNS resolves domain names to IP addresses, Reverse DNS does the opposite. It allows you to look up the domain name associated with a given IP address, providing a way to identify the host or server corresponding with that IP address. It's commonly used for security and administrative purposes, such as verifying the authenticity of incoming email servers or identifying the origin of network traffic based on IP addresses.
Reverse DNS service provided by ClouDNS is a Premium DNS service for IP network owners and operators and it is not included in the Free plan. The Reverse DNS hosting is a business class service and supports both IPv4 and IPv6 Reverse DNS zones.
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DDoS Protected L $39.95/月 |
DDoS Protected M $11.95/月 |
Premium L $14.95/月 |
Premium M $4.95/月 |
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| Reverse DNS: | ||||
| ? DNS域: | 400 | 50 | 400 | 50 |
| ? DNS記錄: | 20,000 | 2,000 | 20,000 | 2,000 |
| ? DNS queries per month: | 1B ? | 150M ? | 500M ? | 150M ? |
| ? DDoS防禦: | - | - | ||
| More details | More details | More details | More details | |
| Buy Now | Buy Now |
Being a network operator is a hard job. You have a lot of things to do. The Reverse DNS is something you can simply move to ClouDNS and free you from the tasks to support multiple DNS servers for authority DNS. With us, you are completely free to move away from your network the most DDoS Attacked UDP service - the DNS.
The service is very useful for those administrators who manage their own mail servers. Reverse DNS must exist for the IP address from which the outgoing e-mail is sent. The reason is that many mail servers on the Internet are configured to reject incoming mail from any IP address that does not have Reverse DNS (rDNS).
*Standards from the IETF (Internet Engineering Task Force) suggest that every domain should be capable of Reverse DNS lookup. Learn more
The Reverse DNS hosting provided by ClouDNS is built on Anycast DNS Network which provides the maximum possible speed and security from any location in the world.
Reverse DNS provides valuable information about IP addresses, which can be extremely beneficial for a variety of reasons. Moreover, if Reverse DNS is configured properly, it can massively enhance the overall performance and security of a network.:
Improve your email deliverability rates by configuring Reverse DNS records correctly. By doing so, it proves the authenticity of your emails.
Quickly identify and resolve issues by tracing IP addresses back to their corresponding domain names.
Detect and prevent malicious activities, such as spam, phishing, and hacking attempts, by identifying the true source of IP addresses.
Establish a positive online reputation by ensuring that your IP addresses are associated with legitimate domain names.
在 ClouDNS 設定 Reverse DNS 很簡單，且對確保網路順暢運作至關重要。請依照以下步驟操作:
ClouDNS provides both Primary and Secondary DNS for IPv4 Reverse DNS zones. Supported network ranges are:
/24 - 255 IP addresses
/25 - 128 IP addresses
/26 - 64 IP addresses
/27 - 32 IP addresses
/28 - 16 IP addresses
/29 - 8 IP addresses
/30 - 4 IP addresses
/31 - 2 IP addresses
/32 - 1 IP address
IPv4 Reverse DNS 確保每個 IP 位址都有對應的 PTR (Pointer) 記錄。此對應對需要 PTR 記錄進行網域驗證的電子郵件伺服器等服務至關重要，並透過可追蹤的 IP 位址記錄協助網路診斷。
ClouDNS 為 IPv6 Reverse DNS 區域提供 Primary 與 Secondary DNS。支援的網路範圍為 /32 到 /128。透過 IPv6 Reverse DNS，IPv6 位址會使用 ip6.arpa 網域中的 PTR 記錄對應到網域名稱。這對有效管理龐大的 IPv6 位址空間與疑難排解至關重要，可確保每個位址都能解析到其網域，以滿足安全與營運需求。
Each network range (IP block list) requires one DNS zone to be configured. For example, if you have /22 IPv4 network range, you need to separate it into 4 DNS zones for each /24 sub-network. There is no limit on the number of PTR records which can be configured into the DNS zone.
DNS 區域對組織 IPv4 與 IPv6 位址的 PTR 記錄至關重要。將 IP 範圍結構化為 DNS 區域，可更有效管理 IP 位址解析，確保快速 DNS 傳播與可靠的網域名稱解析。
Our Managed DNS service operates under self-developed system with instant DNS propagation over all data centers included in our network. The web-based control panel allows our customers to monitor the propagation over all data centers in real-time. You can check anytime for any of your domain names what is the update status for each data center. In combination with low TTL values (as low as 1 minute) our customers can deploy any changes faster without any downtime.
If you need a custom quote, additional zones or set up of a branded DNS service, please click the button and fill the form!