crt.sh vs Domain Beacon: Side-by-Side Comparison (2026)

crt.sh: Bash script for subdomain enumeration via crt.sh certificate transparency logs. Core capabilities include Subdomain enumeration via certificate transparency logs, Automated querying of crt.sh website, Parsing and filtering of crt.sh output..

Domain Beacon: Provide intelligence about a domain. built by CVAAT Solutions. Core capabilities include WHO Intelligence, Infrastructure Discovery, Website Architecture and Security Issues..

Both serve the External Attack Surface Management market but differ in approach, feature depth, and target audience.

crt.sh differentiates with Subdomain enumeration via certificate transparency logs, Automated querying of crt.sh website, Parsing and filtering of crt.sh output. Domain Beacon differentiates with WHO Intelligence, Infrastructure Discovery, Website Architecture and Security Issues.

crt.sh and Domain Beacon serve similar External Attack Surface Management use cases: both are External Attack Surface Management tools, both cover Subdomain Enumeration, DNS Security. Key differences: crt.sh is Free while Domain Beacon is Commercial. Review the feature comparison above to determine which fits your requirements.