If you have enabled the Domain Name System (DNS) traffic analysis feature of Public Authoritative DNS for your domain name and you want to reduce the fees of this feature, you can use one of the following methods:
Method 1: Purchase Authoritative DNS Advanced Service (traffic plan)
If the number of DNS requests for your domain name is large, we recommend that you purchase a traffic plan. The traffic plan can reduce the costs of DNS requests that are billed on a pay-as-you-go basis. The larger the traffic plan, the cheaper per 10,000 DNS requests. The quotas of traffic plans include 10 million DNS requests, 100 million DNS requests, 1 billion DNS requests, and 10 billion DNS requests.
The DNS traffic analysis feature of Public Authoritative DNS is billed on a daily basis. If you have purchased a traffic plan within a billing cycle, the quota of the traffic plan is automatically deducted when the bill is generated.
The traffic plan purchased during the current billing cycle cannot offset the fees generated during the last billing cycle.
If the traffic plan is used up, excess DNS requests are billed on a pay-as-you-go basis. For more information, see the Authoritative DNS Advanced Service section of the Pricing topic.
Method 2: Adjust the TTL values of DNS records
The time to live (TTL) value determines how long DNS records are cached in the local DNS servers. You can adjust the TTL values of DNS records cached in the authoritative DNS servers to determine how long the DNS records can be cached in the local DNS servers.
To accelerate DNS resolution and reduce the workload of recursive servers, some Internet service providers (ISPs) adjust the TTL values of DNS records cached in their local DNS servers. In this case, how long the DNS records can be cached in the local DNS servers is not determined by the TTL values configured for the authoritative DNS servers.
During the TTL period, the DNS requests initiated by clients can match the DNS records cached in the local DNS servers, and recursive DNS requests are not forwarded to the authoritative DNS servers. In this case, the authoritative DNS servers do not receive DNS requests.
After the TTL period expires, the local DNS servers delete the DNS records. If clients initiate new DNS requests for the domain name, recursive DNS requests are forwarded to the authoritative DNS servers. In this case, the authoritative DNS servers receive DNS requests.
Therefore, to reduce the fees of the DNS traffic analysis feature of Public Authoritative DNS, you can increase the TTL values of DNS records, for example, change 1 minute to 10 minutes.
If your domain name is integrated with Global Traffic Manager (GTM) and the TTL value is increased, abnormal IP addresses are cached for a longer time after failover. We recommend that you do not adjust the TTL value.
If you need to modify a DNS record, we recommend that you reduce the TTL value of the DNS record first. After the TTL period expires, modify the DNS record.
Procedure
Log on to the Alibaba Cloud DNS console.
On the Authoritative DNS Resolution page, find the desired domain name and click DNS Settings in the Actions column.
On the DNS Settings page, find the desired DNS record and click Modify in the Actions column.
In the Modify DNS Record panel, increase the TTL value and click OK.
Method 3: Apply for a business discount
If neither Method 1 nor Method 2 can solve your issue, add the DingTalk account behladu for consultation.