Post-quantum key agreement

The post-quantum headline: share of deep-scanned websites offering a hybrid PQ key exchange.

Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% Post-quantum key exchange: 61.3% 61.3%Post-quantum key exchange596,914 of 973,441 deep-scanned websites

Denominator: deep-scanned websites · n = 973,441

Without Cloudflare-fronted websites the share is 33.6% — the edge owns most of the number.

View as table
MeasureShareSitesn
Post-quantum key exchange61.3%596,914973,441

Source: GeoTrust Research — The State of SSL/TLS, October 2026