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DNS
DNS
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DNS features and availability

Refer to the following table to check the availability of all Cloudflare DNS features.

FeatureAdditional featuresFreeProBusinessEnterprise

CNAME flattening

YesYesYesYes

Can customize

NoYesYesYes

Custom nameservers

NoNoYesYes

DNS analytics

YesYesYesYes

Historical time

6 hours24 hours7 days30 days

DNS Firewall

NoNoNoPaid add-on

DNSSEC

YesYesYesYes

Full zone setup

YesYesYesYes

Partial zone setup

NoNoYesYes

DNS record comments

YesYesYesYes

Character limit

100500500500

Comments per record

1111

DNS record tags

NoYesYesYes

Name character limit
(everything before the colon)

N/A323232

Value character limit
(everything after the colon)

N/A100100100

Tags per record

N/A202020

Reverse zones

YesYesYesYes

Subdomain delegation

YesYesYesYes

Subdomain zone setup

NoNoNoYes

DNS zone transfers

NoNoNoYes