Sinatra Signatures GET / /__sinatra__/404.png GET / Server: WEBrick Additional References https://censys.io/ipv4/report?field=443.https.tls.certificate.parsed.subject.organization.raw&max_buckets=1000&q=%22%2F__sinatra__%2F404.png%22 https://censys.io/ipv4/report?field=443.https.tls.certificate.parsed.subject.organization.raw&max_buckets=1000&q=%22WEBrick%22
