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Bilibili Tech
Bilibili Tech
Apr 22, 2025 · Operations

Client‑Side DCDN Disaster‑Recovery Drills and Automated Testing at Bilibili

Bilibili performed client-side DCDN disaster-recovery drills using a self-built HTTPDNS to simulate DNS, CDN, and SSL faults; automated scripts across Android, iOS, and Web injected errors, measured rendering latency, validated immediate downgrade to commercial services, refined fallback strategies, and demonstrated near-zero user impact during a real network incident.

BilibiliDCDNHttpDNS
0 likes · 13 min read
Client‑Side DCDN Disaster‑Recovery Drills and Automated Testing at Bilibili
vivo Internet Technology
vivo Internet Technology
Feb 19, 2025 · Backend Development

vivo HTTPDNS End-to-End Integrated Solution: Architecture, Optimizations, and Business Impact

vivo’s end‑to‑end HTTPDNS solution integrates a client SDK, high‑performance service, unified scheduling gateway, and full‑link monitoring, cutting resolution latency by 36%, boosting DNS success to 99.85%, handling 1.5 billion queries daily, and preventing hijacking and misblocking across its ecosystem.

Backend DevelopmentDNS resolutionHttpDNS
0 likes · 19 min read
vivo HTTPDNS End-to-End Integrated Solution: Architecture, Optimizations, and Business Impact
HaoDF Tech Team
HaoDF Tech Team
Feb 2, 2023 · Mobile Development

Android Client Network Optimization: Framework Unification, HttpDns Integration, and Performance Enhancements

This article details how an Android team unified multiple network libraries into OkHttp, integrated HttpDns to bypass carrier DNS hijacking, migrated to HTTPS and HTTP/2, and applied a series of performance and security optimizations that markedly improved request speed, reliability, and user experience across diverse mobile network conditions.

AndroidHTTP2HTTPS
0 likes · 22 min read
Android Client Network Optimization: Framework Unification, HttpDns Integration, and Performance Enhancements
Bilibili Tech
Bilibili Tech
Dec 30, 2022 · Operations

Self-Developed HTTPDNS Service: Cost Estimation, Architecture, Optimization, and Lessons Learned

To cut the hundreds‑of‑thousands‑yuan monthly bill of a commercial HTTPDNS service, the team built a multi‑region, self‑hosted HTTPDNS platform, estimated to slash costs by up to 90%, then resolved unexpected TLS bandwidth waste by improving connection reuse, ultimately achieving over 80% savings and planning a hybrid‑cloud deployment.

BGPCloud NetworkingCost Optimization
0 likes · 12 min read
Self-Developed HTTPDNS Service: Cost Estimation, Architecture, Optimization, and Lessons Learned
Baidu App Technology
Baidu App Technology
Jul 13, 2021 · Mobile Development

Baidu Live Streaming Startup Performance Optimization: Technical Practices and Solutions

Baidu’s live‑streaming team cut startup latency by dissecting the three‑phase launch process, streamlining business‑logic handling, employing HTTPDNS pre‑resolution, forcing first‑frame rendering, low‑bitrate fallback, pre‑loading kernels, direct H.264 SPS/PPS parsing, and HLS m3u8 pre‑fetching, achieving sub‑3 ms DNS and hundreds‑millisecond overall gains.

HLS StreamingHttpDNSLive Streaming
0 likes · 11 min read
Baidu Live Streaming Startup Performance Optimization: Technical Practices and Solutions
TAL Education Technology
TAL Education Technology
May 20, 2021 · Operations

Implementing HttpDNS on Windows via API Hook for WinInet

This article explains why HttpDNS is used to improve DNS resolution for a WinInet‑based installer, compares two implementation schemes, and details a Windows API Hook solution—including inline hook techniques, detours usage, and custom GetAddrInfoEx handling—to achieve transparent, secure domain resolution on Windows clients.

API HookDNS over HTTPSHttpDNS
0 likes · 12 min read
Implementing HttpDNS on Windows via API Hook for WinInet
Xueersi Online School Tech Team
Xueersi Online School Tech Team
Jan 29, 2021 · Fundamentals

Understanding HttpDNS: Principles, Workflow, and Implementation in Xueersi Online School

This article introduces the shortcomings of traditional DNS, explains the HttpDNS concept and its underlying mechanisms, details the workflow and advantages of Alibaba Cloud HttpDNS, and describes how Xueersi Online School integrates HttpDNS across PC, Android, and iOS clients.

DNSDomain Name ResolutionHttpDNS
0 likes · 14 min read
Understanding HttpDNS: Principles, Workflow, and Implementation in Xueersi Online School
Baidu App Technology
Baidu App Technology
Dec 26, 2018 · Mobile Development

Deep Network Optimization in Baidu App: DNS and HTTPDNS Practices

To combat carrier DNS hijacking and latency, Baidu App implements a comprehensive HTTPDNS solution that replaces system DNS with secure, BGP‑routed queries, adds layered strategies for disaster recovery, caching, IP selection, and integrates custom modules into Android’s OkHttp and iOS’s Cronet, dramatically lowering hijack rates while modestly improving response times.

AndroidDNSHttpDNS
0 likes · 20 min read
Deep Network Optimization in Baidu App: DNS and HTTPDNS Practices