Dhasdorgi
Field notes on building and running reliable internet services.
Data Residency Basics for Global Teams
August 21, 2026
Discussions around territorial data storage tend to emerge as an afterthought, often dismissed as a basic configuration toggle to store European records locally. In reality, meeting territorial constraints is an exhaustive architectural undertaking rather than a superficial server provisioning choice.
Focusing solely on where the core database engine resides creates a false sense of security. Ancillary infrastructure like database backups, search sync workers, logging warehouses, and observability pipelines routinely replicate customer records across borders unless explicitly restricted.
Email Deliverability: Authentication Beyond SPF
June 11, 2026
Traditional SPF checking fails to address modern deliverability challenges on its own. While an envelope IP check might succeed, mismatched headers trigger spam filters that prioritize cryptographic DKIM validations and broader DMARC policy rules.…
HTTP/3 and QUIC: What Changed for Operators
July 6, 2026
Relocating the transport layer to userspace and wrapping headers in encryption makes QUIC a privacy milestone that complicates packet capture analysis. Metrics like congestion parameters and stream flow control are no longer readable off raw wire captures without decrypting via session secrets.…
The Hidden Cost of Chatty Microservices
July 7, 2026
Decomposing monolithic applications substitutes in-memory execution paths with network boundaries, creating massive fan-out overhead. Where an operation once invoked three internal functions, it now executes three network dispatches across distinct services, multiplying timeout policies and failure …
Structuring DNS for Reliability
August 23, 2026
Nameserver outages are devastating because they paralyze systems globally: infrastructure monitors report operational green across every host while end users cannot locate your endpoints. Mitigating this catastrophic blind spot requires standard multi-provider redundancy backed by distinct network b…
More reading
- Cache Invalidation Patterns That Survive Traffic — Data, July 16, 2026
- Why Edge Caching Still Matters in 2026 — Infrastructure, May 17, 2026
- Reading Latency Percentiles Without Fooling Yourself — Operations, April 19, 2026
About us
We cover the unglamorous middle of software: queues that back up, caches that lie, and DNS at 3 a.m. Everything is written from real operational experience.