Insights, updates, and practical guides from our engineering team.
A technical engineering guide to implementing email authentication: configuring DNS TXT records, DKIM key selectors, and DMARC policy enforcement.
A technical guide to recognizing phishing attacks: identifying deceptive email headers, analyzing homograph domain spoofing, and deploying DMARC.
A technical evaluation of modern authentication methods: comparing traditional passwords, SMS OTP, TOTP tokens, and cryptographic FIDO2/WebAuthn passkeys.
A masterclass in fundamental command-line network diagnostics: the mechanics of ICMP Echo, TTL decrementing in traceroute, and DNS record queries.
A technical guide to DNS resolver caching: cache poisoning defenses, Negative Caching (RFC 2308), TTL expiry, and OS cache flushing commands.
A methodical engineering guide to diagnosing slow internet speeds: isolating physical layers, Wi-Fi vs Ethernet testing, gateway metrics, and MTU issues.
A technical engineering guide to digital accessibility: understanding WCAG principles (POUR), semantic HTML, ARIA attributes, and automated testing.
A technical deep-dive into HTTPS and TLS 1.3: asymmetric key exchange, symmetric encryption, the 1-RTT handshake, X.509 PKI, and HSTS enforcement.
A masterclass in interpreting traceroute diagnostics: identifying asymmetric routing, MPLS tunnels, ICMP rate-limiting, and peering bottlenecks.