# Cloudflare says DNS-cache changes freed about 100TB of fleet memory

_Thursday, August 27, 2026 at 1:02 PM EDT · Infrastructure · Latest · Tier 2 — Notable_

![Cloudflare says DNS-cache changes freed about 100TB of fleet memory — Primary](https://blog.cloudflare.com/_emdash/api/media/file/01M1185AQ3B90700DKB48C2HHM.png)

Cloudflare says five changes to the in-memory representation of its DNS cache cut per-entry memory use by more than half across the platform behind 1.1.1.1 and several other DNS services. The company says the work freed roughly 100 terabytes of memory across its fleet, while cache insert throughput rose 43% and lookup latency fell 19%. The changes include replacing expandable storage with fixed-size storage and changing how records are represented.

## Sources

- [The Cloudflare Blog](https://blog.cloudflare.com/dns-cache-memory-optimization-1111/)

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Canonical: https://techandbusiness.org/newswire/89NS0_GBiwDg4eFk66FGla
Retrieved: 2026-08-27T20:16:27.589Z
Publisher: Tech & Business (techandbusiness.org)