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Google's Chrome to Implement Quantum-Resistant HTTPS Certificates

2/28/2026

24 5 Full Breakdown

Summary

Story summary

Google LLC announced on February 28, 2026, that Chrome will adopt quantum-resistant HTTPS certificates.
The certificates will be about 2.5 kilobytes versus today's 64 bytes, potentially slowing browsing.
To mitigate slowdowns, Google LLC is collaborating with Cloudflare, Inc. to use Merkle Trees for compact verification.
Merkle Trees replace traditional certificate chains with a single "Tree Head" signed by a Certification Authority.

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Story summary

Google LLC announced on February 28, 2026, that Chrome will adopt quantum-resistant HTTPS certificates.
The certificates will be about 2.5 kilobytes versus today's 64 bytes, potentially slowing browsing.
To mitigate slowdowns, Google LLC is collaborating with Cloudflare, Inc. to use Merkle Trees for compact verification.
Merkle Trees replace traditional certificate chains with a single "Tree Head" signed by a Certification Authority.