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thisisgvrt 6 months ago | parent | context | [–] | on: BGP.Tools: Browse the Internet Ecosystem

https://www.youtube.com/watch?v=83NJllv0q9U was a nice behind the cover peek into how the data is collected and parsed.

thisisgvrt 11 months ago | parent | context | [–] | on: Ask HN: How did the internet discover my subdomain...

Automated agents can tail the certificate log to discover new domains as the certs are issued. But if you want to explore subdomains manually, https://crt.sh/ is a nice tool.

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