3 technologies1 categories
spamassassin.org uses HSTS, Varnish, and Apache HTTP Server.
Tech Stack Highlights
Infrastructure & Security3
HSTS
Security
75%
1 evidence signal
Header
max-age=31536000; includeSubDomains; preloadVarnish
Caching
75%
1 evidence signal
Header
varnish(?: \(Varnish/([\d.]+)\))?\;version:\1: 1.1 varnish, 1.1 varnishApache HTTP Server
Web servers
75%
1 evidence signal
Header
(?:Apache(?:$|/([\d.]+)|[^/-])|(?:^|\b)HTTPD)\;version:\1: Apache