Sep 1, 2026 · Operations

Diagnosing Slow HTTPS Handshakes: Certificates, Network, or Cipher Suites?

This comprehensive guide provides a systematic troubleshooting framework for slow HTTPS handshakes, covering TCP/TLS timing separation, certificate chain validation, OCSP stapling, cipher suite selection, session reuse, and packet capture analysis with practical commands for Nginx and Apache.

HTTPSNginxOCSP

0 likes · 47 min read

Diagnosing Slow HTTPS Handshakes: Certificates, Network, or Cipher Suites?

iQIYI Technical Product Team

Jul 22, 2022 · Information Security

HTTPS Request Optimization Strategies for Mobile Video Streaming

To achieve sub‑second start‑up for mobile video streaming, the iQIYI overseas project applies layered HTTPS optimizations—including DNS and certificate caching, ECDHE/X25519 key exchange, false start, lightweight cipher suites, ECDSA certificates, OCSP stapling, and session‑ID/ticket reuse—while transitioning toward TLS 1.3 0‑RTT and HTTP/3 QUIC for further latency reduction.

HTTPSMobile StreamingOCSP stapling

0 likes · 10 min read

HTTPS Request Optimization Strategies for Mobile Video Streaming