GET /it-administrator.html IT Administrator -- practical knowledge for system and network administration GET /pub/WWW/ HTTP/1.1 Host: www.it-administrator.de Header set Link "; rel=preload; as=style" Header add Link "; rel=preload; as=style" Header add Link "; rel=preload; as=script" Header set Link "; rel=preload;as=script; crossorigin" header("Link: ; rel=preload; as=style"); header("Link: ; rel=preload;as=style, ;rel=preload;as=script, ;rel=preload; as=image"); header("Link: ; rel=preload; as=style,;rel=preconnect"); LoadModule http2_module modules/mod_http2.so Protocols h2 h2c HTTP/1.1