A free tool that discovers potentially forgotten subdomains by querying public Certificate Transparency (CT) logs for issued SSL certificates. It provides live, uncached reports but may require repeated attempts for some domains due to overloaded CT registries.
The author noticed that, for their personal blog, RSS feeds send more traffic than Google. They have not focused on aggressive SEO but maintain a semantic layout with metadata.
The author added a local, privacy-first GeoIP tracking tool to their blog to get a rough idea of where RSS subscribers are from. They acknowledge limitations such as VPN use and IP changes.