What is the purpose of the 'TTL' (Time To Live) value for PTR records in Cloudflare?

By: USER5542
27 Agustus 2025 Support 5 minutes
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Grade: Education Subject: Support
What is the purpose of the 'TTL' (Time To Live) value for PTR records in Cloudflare?
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The TTL value determines how long DNS resolvers (like your ISP's DNS servers) will cache the PTR record information. A shorter TTL means changes propagate faster, but it can increase DNS traffic. A longer TTL means changes take longer to propagate, but it reduces DNS traffic. Typically, a TTL of 3600 seconds (1 hour) is a good balance.
Answered on 27 Agustus 2025

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