Cloudflare BlogNov 2, 20261 min read

How we halved DNS build delay and cut memory use by 85%

Zone setting changes used to rebuild entire DNS zones, even ones with tens of millions of records. Here is how we built a planner that picks the smallest safe...

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Introducing Zero Wire, a hub for investigating critical Internet vulnerabilities

Zero Wire on Cloudflare Radar pairs plain-language briefings with global attack telemetry and remediation steps. Triage critical CVEs faster and decide how to...

NetworkingSecurity

1 min

Cloudflare4d ago

4 real? Tracking exploitation and patching of eMudhra’s weak keys

Four, just four: that’s the key to break into any unpatched connection on the Internet that is using eMudhra certificates. Here’s how we quickly patched...

NetworkingSecurity

1 min

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