How to do DNS verification? Steps and precautions to share

in domain name management, website filing, SSL certificate deployment or third-party service binding scenarios, DNS verification is a key link to confirm domain name ownership or authority. Many novices will fail to verify due to irregular operations, delaying business advancement. This article will disassemble the whole process from preparation, operation steps, problem investigation to precautions, so that you can clearly grasp the core logic and practical operation methods of DNS verification, and easily complete the domain name verification requirements in various scenarios.

What should be done before DNS verification?

before the formal DNS verification, adequate preparation can greatly improve the verification success rate and avoid repeated operations due to early omissions.

1 Confirm domain name management authority

you need to have the DNS management background authority of the target domain name, that is, the authority to directly modify the DNS record of the domain name. If the domain name is registered through a third-party service provider, you must first log in to the domain name management console of the corresponding service provider to find the DNS record management entrance; if it is an internal DNS server of the enterprise, you need to contact the operation and maintenance personnel to obtain the modification permission. Without the corresponding permission, the core operation of DNS verification cannot be completed.

2 Obtain record information required for verification

depending on the verification scenario, the third-party platform will provide corresponding DNS verification records, which usually contain three types of information: record type, host record and record value. For example, SSL certificate verification is mostly TXT records, and website record verification may be CNAME records. To accurately copy these information to avoid verification failure due to character input errors, it is recommended to copy and paste directly instead of manually entering.

Second, the specific steps of DNS verification are?

After the preparation work is completed

, DNS verification can be performed according to the standard process. The operation logic of different scenarios is basically the same, and only the record type is slightly different.

1, enter the DNS record management background

log in to the management console of the domain name service provider, find the domain name that needs to be verified in the domain name list, and click to enter the DNS record management page. The entrance of some service providers may be marked as "DNS resolution", "domain name resolution" or "record management". If you can't find the help document of the service provider or contact customer service for consultation, make sure to enter the correct operation interface.

2, add the corresponding type of verification record

click the "Add Record" button on the DNS record management page, select the record type provided by the third-party platform, such as TXT or CNAME, and then fill in the host record and record value in turn. The host record is usually "@" or a specified prefix. The record value needs to be completely copied from the content provided by the third-party platform. Save the record after filling it out. Some service providers may need secondary confirmation to take effect.

3, submit verification and wait for results

return to the verification page of the third-party platform, click the "Start Verification" button, and the platform will automatically check whether the DNS records of the corresponding domain name match. The effective time of DNS verification usually ranges from 10 minutes to 24 hours. If you use a public DNS server, the effective speed will be faster. If you fail for a long time, you can manually refresh the verification status.

How to troubleshoot DNS verification failure?

DNS verification process may fail due to a variety of factors, master the troubleshooting method can quickly locate the problem and solve it.

1, check the accuracy of DNS records

this is the most common reason for DNS verification failure, it is necessary to check whether the record type, host record and record value are exactly the same as the information provided by the third-party platform one by one, especially pay attention to the special characters, case and spaces in the record value, such as TXT record value usually need to be wrapped in quotes, if omission will lead to verification failure, you can directly copy and paste the correct information in the DNS management background and try again.

2, confirm whether the DNS record is valid

can enter the domain name and the corresponding record type through the online DNS query tool to inquire whether the verification record just added can be obtained. If the query is not available, it means that the record has not taken effect. It may be that the DNS cache of the service provider has not been updated, and you can wait for a period of time to inquire again; if it has not taken effect for a long time, you can contact the domain name service provider to confirm whether the resolution status is normal.

Key considerations for DNS verification?

in addition to the operation process, pay attention to the details of DNS verification, to avoid unnecessary problems in the future, to ensure the durability of the verification effect.

1, do not delete the verification record at will

some scenarios, DNS verification records need to be retained for a long time. For example, when the SSL certificate is automatically renewed, the platform will regularly verify the domain name authority again through the record. If it is deleted in advance, it will lead to the renewal failure, which will affect the SSL service of the website. If you are not sure whether the record can be deleted, you can check the relevant instructions of the third-party platform or consult customer service.

2, pay attention to the valid period of DNS verification

some temporary scenarios DNS verification records have valid period restrictions, such as temporary verification records for website filing, which may become invalid after filing, and it is necessary to clean up useless verification records in time to avoid DNS record lists being too complicated and affecting subsequent domain name resolution management.

To sum up, DNS verification is the core operation in the domain name management scenario. From the early stage of authority confirmation and information preparation, to the mid-term record addition and verification submission, and then to the later stage of problem investigation and record maintenance, each link has clear operation logic and precautions. As long as you strictly follow the process and pay attention to details, you can successfully complete DNS verification and lay the foundation for the advancement of domain name-related businesses.