GitHub

GitHub Usage Statistics · Download List of All Websites using GitHub

The website mentions github.com in some form.

Reg.ru DNS

Reg.ru DNS Usage Statistics · Download List of All Websites using Reg.ru DNS

Russian based DNS services.

LetsEncrypt

LetsEncrypt Usage Statistics · Download List of All Websites using LetsEncrypt

Let’s Encrypt is a free open Certificate Authority.

Root Authority

HSTS

HSTS Usage Statistics · Download List of All Websites using HSTS

Forces browsers to only communicate with the site using HTTPS.

SSL by Default

SSL by Default Usage Statistics · Download List of All Websites using SSL by Default

The website redirects traffic to an HTTPS/SSL version by default.

Reg.ru Hosted

Reg.ru Hosted Usage Statistics · Download List of All Websites using Reg.ru Hosted

Hosted at Reg.ru.

Russian hosting

Russian Server Location

Russian Server Location Usage Statistics · Download List of All Websites using Russian Server Location

The web server is located in Russia

Server Location

SPF

SPF Usage Statistics · Download List of All Websites using SPF

The Sender Policy Framework is an open standard specifying a technical method to prevent sender address forgery.

lighttpd

lighttpd Usage Statistics · Download List of All Websites using lighttpd

Security, speed, compliance, and flexibility--all of these describe LightTPD which is rapidly redefining efficiency of a webserver; as it is designed and optimized for high performance environments. With a small memory footprint compared to other web-servers, effective management of the cpu-load, and advanced feature set (FastCGI, CGI, Auth, Output-Compression, URL-Rewriting and many more) LightTPD is the perfect solution for every server that is suffering load problems.

IPv6

IPv6 Usage Statistics · Download List of All Websites using IPv6

The website has an IPv6 record.