The SOA means Start Of Authority. The SOA record defines the beginning of the authoritative DNS zone and specifies the global parameters for the zone. These parameters include the primary name server, the email of the domain administrator, the domain serial number, and several timers relating to refreshing the zone.
Every DNS zone registered in ClouDNS must have an SOA (Start of Authority) record. There is one SOA record per zone.
Example of SOA record can be seen below:
$ dig SOA cloudns.net +short
pns1.cloudns.net. support.cloudns.net. 2020080526 7200 3600 1209600 60
The SOA record, a key component of the DNS, was established in 1987 as part of the initial DNS architecture in RFC 1034 and RFC 1035. Key clarifications and updates were provided in RFC 2181 and RFC 2308, with RFC 8499 offering a detailed definition. This record type is also mentioned in various other RFCs, highlighting its significance in the DNS framework.
The SOA record contains core information about your zone. It is not possible for your zone to work without that information. Therefore, it is mandatory to have an SOA record for each of your zones. In addition, there are some other reasons why you need it. Here are some of them:
The SOA is added automatically for every DNS zone hosted at ClouDNS. You could adjust the SOA values from within the “SOA Settings” button for each of your Zones.
Note: Managing SOA records is not available for Free users.
If you are on one of our paid plans, you can set up default SOA parameters that will be used when you create a new zone or reset your current SOA details. This can be done from the profile settings of the account.
1. Log in with your ClouDNS account.
2. Enter into your profile settings by clicking on your e-mail link at the top of the page.
3. In the SOA settings panel you can set up default values for DNS admin e-mail, Primary NS, Refresh rate, Retry rate, Expire time, and Default TTL then click on the Save button.
Note: This feature is available for Premium, DDoS Protected, and GeoDNS subscriptions.
Despite the fact that both records are mandatory for the normal work of your zones, their roles are quite different.
SOA record is a kind of documentary record, automatically generated along with the initial creating of your DNS zone. It contains valuable and obligatory information such as the DNS admin email address, the primary name server, the DNS zone’s serial number, and few other values.
The NS records identify the name servers, responsible for your DNS zone. In other words, the NS records tell which servers can be contracted to obtain the records pertaining to the domain.
|DNS admin email
You can manually check the SOA record for a domain name by using one of the following commands:
If you are a Windows user, you can open the Command Prompt and check your SOA records via Nslookup. Here is an example:
$ nslookup -q=soa example.com
If you are a Linux/macOS user, you can open the Terminal and check your SOA record via DIG. Here is an illustration:
$ dig example.com soa
In addition, if you prefer to use an online tool, you can check your SOA record with ClouDNS Free DNS tool.
ClouDNS provides full support for SOA records. Each DNS zone has a SOA record, but the main settings - admin mail, primary name server and so on can be changed only by customers with active non-free subscription. All DNS hosting plans here includes SOA record management:
When editing your SOA record, it's crucial to increment the serial number for each change to ensure DNS synchronization across servers. Properly setting refresh, retry, and expire intervals is vital for efficient DNS updates and minimizing network load. Additionally, configuring the minimum TTL is important for balancing the caching duration of DNS records, impacting how quickly changes propagate across the network. These elements are key to maintaining DNS stability and performance.
Question: Do I need to have an SOA record for my domain?
Answer: Yes, every domain is required to have an SOA record. Without an SOA record, it would be impossible for DNS servers to view the records associated with a domain.
Question: How come I don't see the SOA record along with my other records at my DNS zone management page?
Answer: SOA record is not listed with the stack of your other records at your DNS zone management page. Its values can be modified from within the "SOA Settings" button for each of your zones.
Question: I am a Free user of yours and I want to manage my SOA details. What do I have to do?
Answer: SOA settings are available to premium accounts only. You must upgrade in order to manage your SOA settings.
Question: Online checkers alarm me with "Primary Name Server Not Listed At Parent". How to fix this warning.
Answer: We recommend you to check your SOA settings and make sure that one of your domain's name servers is specified as Primary NS in the SOA record. It is a common warning when customers use custom name servers, but the Primary NS in the SOA record has been left to the default.
Question: Can I edit an existing SOA record?
Answer: Yes, you can edit an existing SOA record. However, you should always be careful when editing an SOA record, as it can significantly impact how your domain works. Make sure to back up the existing SOA record before making any changes.
Question: What is a negative TTL?
Answer: A negative TTL is setting on an SOA record that instructs domain name servers to ignore the record and not cache the record for future use.