Articles - Page 11
BIMI logo cache: run a brand refresh and make the new logo show up everywhere
Your logo changed but inboxes still display the old one? It is not only a DNS issue: mailbox providers cache BIMI assets. Discover how the cache layers work and how to plan a smooth BIMI migration.
New in CaptainDNS: central history and continuous DNS monitoring
Diagnose, archive, share, then monitor: CaptainDNS now supervises the full lifecycle of a DNS query from the first lookup to automated watch jobs.
Gmail tightens its sending rules: what's changing for senders starting November 2025
Starting in November 2025, Google enforces new security requirements for bulk senders: full SPF/DKIM/DMARC authentication, TLS encryption and strict unsubscribe management.
France's domains: the local digital divide
Behind 4.3M .fr domains, geography reveals a two-speed country: from 21 to 235 domains per 1,000 inhabitants depending on the department.
AI-Powered Phishing: What the MDDR 2025 Reveals
AI-automated phishing emails average a click-through rate of roughly 54%. At scale, automation can make these campaigns up to ×50 more profitable. Both figures come from the Microsoft Digital Defense Report 2025 (MDDR 2025).
EDNS Client Subnet (ECS): understanding how DNS adapts responses to your location
EDNS Client Subnet (ECS) lets a DNS resolver pass a client address prefix to improve geolocation of the answers.
Building Resilient DNS Monitoring
Ensure visibility of your domains by combining zone differences, active queries and propagation tests.