What is it about?
In a large DNS query campaign we found that some resolvers reply with non-standard TTL.
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Why is it important?
Practitioners need to plan their applications and databases to non-standard TTL replies or risk unintetional beahvior, or evencrashes.
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This page is a summary of: Non-Standard Large TTLs in DNS Query Responses, July 2025, ACM (Association for Computing Machinery),
DOI: 10.1145/3744200.3744777.
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