DNS
The Physics of Resolution Distance: Why Your DNS Location Still Matters in 2026
Learn why resolver distance still affects DNS speed, mobile UX, and SEO in 2026, and how Anycast networks reduce global latency.
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DNS
DNS Memory Leaks: When Old Records Break Modern Browser Behaviour
Learn how DNS memory leaks form, why stale DNS data breaks modern browser behaviour, and how to detect and eliminate outdated DNS records.
DNS
NAPTR & URI Records Today: Do They Still Have a Job?
NAPTR and URI DNS records are niche—NAPTR is essential for telecom (ENUM/VoIP) but too complex; simpler SRV, HTTPS, and SVCB are the modern standard for discovery.
DNS
Delegation Checkers Don't Agree: DS, NS, and Glue Diagnostics Compared
Inconsistent DNS delegation checker results (DS, NS, Glue) are frustrating—learn why tools disagree, how to interpret varied reports, and prioritize critical fixes.
DNS
IPv6-First Domains: AAAA-Only Strategies and Real-World Breakage
The technical and practical complexities of IPv6-only domain strategies—simplification, cost reduction, and global reachability risks.
DNS
DNS Logging that Matters: Query Sampling, Retention, and Privacy
Master effective DNS logging—implement query sampling, tiered retention, and privacy techniques like IP anonymization to enhance security and reduce operational/privacy risks.
DNS
SPF Macros & Security: Powerful, Rarely Understood, Easy to Misuse
Explore SPF macros—dynamic placeholders for conditional email authorization. Understand the risks: data leakage, DNS lookup inflation—and safer alternatives.
DNS
When DNS History Haunts You: How Legacy Records Create Vulnerabilities Years Later
Legacy DNS records create hidden vulnerabilities and weaken security. Learn how outdated entries impact performance, routing, and trust, and how to prevent long‑term DNS risks.
DNS
Domain Session Integrity: Why Stable DNS Sessions Matter in a Multi-Device World
Learn why DNS session integrity has become essential for performance, trust, and security as users move across multiple devices and networks.
DNS
Local SEO Reinvented: How GeoDNS and Edge Caching Are Redefining Location Signals
Learn how GeoDNS and edge caching improve local SEO by boosting speed, regional content delivery, and search relevance across locations.
DNS
Mixed Microsoft/Google MX Setups: Why "Hybrid" Rarely Delivers
Mixed email setups—authentication, routing, and deliverability issues. Better solutions include subdomain separation or migration strategies.
DNS
DS Record Mistakes: Fixing Broken Delegation After a DNSSEC Change
Diagnose and fix broken DNSSEC delegations caused by key mismatches, automated rollovers, or propagation delays to restore website accessibility.