Technical articles, guides, and security analysis from the DomainAfterCare team.
Combating homoglyph attacks, bit-squatting, and deceptive lookalike domains before attackers launch phishing campaigns against your customers.
Read Article →How marketing teams use CNAME cloaking to circumvent browser cookie restrictions, and why enterprise security teams must audit these shadow DNS records.
Read Article →Rapid cloud prototyping leaves behind orphaned DNS records that point to non-existent cloud resources. Learn how to find and clean up zombie subdomains.
Read Article →Inbox providers now enforce strict authentication thresholds for senders. Review the technical requirements to prevent your emails from bouncing.
Read Article →Deprecated 1024-bit DKIM keys are susceptible to cloud cracking. Learn how to transition to 2048-bit keys safely with zero email delivery disruption.
Read Article →Most organizations get stuck in monitoring mode (p=none) out of fear of blocking legitimate business mail. Here is the step-by-step roadmap to achieve full enforcement.
Read Article →Exceeding the 10-lookup limit in RFC 7208 causes SPF verification to fail with a PermError. Learn how to diagnose, flatten, and fix your SPF record.
Read Article →Manual quarterly audits leave a massive window of vulnerability. Learn how continuous monitoring and Infrastructure-as-Code prevent security lapses.
Read Article →Prevent rogue Certificate Authorities from issuing SSL certificates for your domain by enforcing DNS Certification Authority Authorization (CAA).
Read Article →Landing on a DNSBL blacklist can halt transactional and marketing emails instantly. Discover how blacklists operate and how to remediate listings.
Read Article →Learn how DNS Security Extensions (DNSSEC) use public key cryptography to validate DNS lookup responses and prevent Man-in-the-Middle attacks.
Read Article →Display your official company logo directly inside recipient inboxes alongside verified checkmarks in Gmail and Apple Mail using BIMI.
Read Article →Managing domains for dozens of clients requires a strict security framework. Learn how to prevent configuration drift and unauthorized zone access.
Read Article →Prevent spoofing and safeguard your domain reputation by configuring your email authentication records correctly.
Read Article →Dangling DNS records are a hidden gateway for attackers. Here is how to discover and remediate vulnerable CNAME records.
Read Article →Browsers are pushing for shorter SSL certificate lifespans. Learn how this affects your portfolio and why automation is no longer optional.
Read Article →Domain hijacking often starts at the registrar panel. Learn how EPP locks protect your root DNS authority.
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