Record attributes
Use DNS record comments and tags to categorize and clarify the purpose of DNS records within Cloudflare.
Comments provide a unique descriptions for specific records, whereas tags group similar records into categories.
These attributes are particularly useful when:
- Multiple teams are managing DNS records within the same zone.
- Your zone contains a large number of DNS records.
- You want to filter your DNS records based on matching attributes (for example, when they are managed by the same team or used for the same application).
Comments and tags are only supported for full and partial zones.
| Free | Pro | Business | Enterprise | |
|---|---|---|---|---|
Availability | Yes | Yes | Yes | Yes |
Character limit | 100 | 500 | 500 | 500 |
Comments per record | 1 | 1 | 1 | 1 |
| Free | Pro | Business | Enterprise | |
|---|---|---|---|---|
Availability | No | Yes | Yes | Yes |
Name character limit (everything before the colon) | N/A | 32 | 32 | 32 |
Value character limit (everything after the colon) | N/A | 100 | 100 | 100 |
Tags per record | N/A | 20 | 20 | 20 |
Create or edit record attributes just like any other aspect of DNS records, whether through the dashboard or API.
You can also add or edit attributes by exporting and re-importing your records, or using the Batch record changes API.
When exporting and importing, a special tag cf-flatten allows you to control CNAME flattening for individual records. On export, this tag is automatically added to reflect the record configuration you have on your zone.
Comments are treated as graphic Unicode characters ↗, meaning that they are case-sensitive and do not have any character limitations. However, comments do not support newline (\n) or carriage return (\r) characters.
Tags are treated as an array of name:value pairs, meaning that tag names are not case-sensitive and can only contain letters, numbers, -, and _. For tag values, the same character restrictions apply as for comments.