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Deeply inspect your DNS configuration for wildcard entries across A, AAAA, CNAME, and MX records. Identify potential security risks, zone walking vulnerabilities, and unintended resolution behaviors.
A DNS wildcard record (*.example.com) matches any non-existent subdomain, directing traffic to a specified resource. While convenient, improper implementation can lead to severe security implications such as domain hijacking, unintended exposure of internal namespaces, and facilitating phishing campaigns via subdomain takeovers. Attackers can leverage misconfigured wildcards to route malicious traffic or conduct extensive reconnaissance against your attack surface.
A DNS wildcard record (*.example.com) matches any non-existent subdomain, directing traffic to a specified resource. Whi...
Configuring wildcard MX records can cause your mail servers to accept emails for non-existent subdomains, leading to massive backscatter spam, reputation damage, and potential inclusion on email blacklists.
Queries the target domain with a randomized non-existent subdomain to determine if a wildcard record is actively responding.
Tests A, AAAA, CNAME, and MX record types to identify which resource types are covered by the wildcard.
Verifies whether explicit subdomain records correctly override the wildcard, confirming proper DNS precedence.
Analyzes DNSSEC Next Secure records to detect zone enumeration vulnerability via NSEC walking.
Comprehensive testing across A, AAAA, CNAME, MX, and TXT records to uncover all potential wildcard configurations in your DNS zone.
Directly queries the authoritative name servers, bypassing public resolvers and intermediate caches to guarantee accurate, real-time results.
Automatically flags wildcard CNAME records pointing to external providers commonly associated with dangling DNS and takeover vulnerabilities.
Utilizes randomized, high-entropy query strings to prevent false positives and accurately distinguish between actual wildcards and large monolithic zones.
Evaluates the interaction between your wildcard records and DNSSEC signatures (RRSIG/NSEC/NSEC3) to identify potential validation chain breakages.
Provides precise configuration recommendations aligned with RFC 4592 (The Role of Wildcards in the Domain Name System) to harden your DNS posture.
Instantly detect overly permissive wildcard records, prevent shadow subdomain takeovers, and align your DNS architecture with security best practices.