PHP 5.4.45

   PHP: Hypertext Preprocessor is a general-purpose programming language originally designed for web development.

SPF

   The Sender Policy Framework (SPF) is an email-authentication technique which is used to prevent spammers from sending messages on behalf of your domain. With SPF an organisation can publish authorized mail servers.

Keep-Alive for 5 secs

   The Keep-Alive general header allows the sender to hint about how the connection may be used to set a timeout and a maximum amount of requests.

Vary Header Accept-Encoding

   The Accept-Encoding request HTTP header advertises which content encoding, usually a compression algorithm, the client is able to understand. Using content negotiation, the server selects one of the proposals, uses it and informs the client of its choice with the Content-Encoding response header.

Meta keywords

   Meta keywords are types of meta tags in the HTML source code of a webpage. They describe the content of a website shortly and concisely,this website is using the following keywords: #lentafilm, #lefrelations, #radiolef, #leftribute, #leftribute17, #metersfest, #sbtg, #khimiyazvuka, #tonwagen, Сергей Соловьёв, Евгений Костькин, Владимир Меч, Ирина Городецкая, Яна Скопина, Олег Блинов, Leftibute'17, Leftribute, лефтрибьют, музыкальное посвящение фильмам, Фонд «Лента Фильм», Организация интернет-трансляций SBTG.RU, Тон-студия TONWAGEN, Интернет-магазин «Химия Звука», Международный кинофестиваль «МЕТРЫ», movie, cine, film, script, writing, shooting, actor, role, artist, sound editing, postproduction, moviemaking, studio, lentafilm, lenta film, filmmaking, art, cinematheatrical, contemporary, experimantal, author's cinema, theatre, theater, film company, association, film studio, cameraman, dop, director of photography, director, screenwriter, shooting, cinematography, role, actors, actor, artist, film production, author's film association, poetry, cinema poetry, лентафильм, лента фильм, кинокомпания, кинообъединение, киностудия, авторское кино, авторский кинематограф, оператор, режиссер, сценарист, сценарий, съемки, кинематограф, роль, актеры, актер, актёр, художник, лентафильм, кинопроизводство, кинообъединение Лента Фильм, объединение Лента, авторское кинообъединение, поэзия, кинопоэзия

Google Analytics

   Google Analytics is a web analytics service offered by Google that tracks and reports website traffic, currently as a platform inside the Google Marketing Platform brand.

Nginx

   Nginx is a web server which can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache. The software was created by Igor Sysoev and first publicly released in 2004. A company of the same name was founded in 2011 to provide support and Nginx plus paid software.

Progressive Web Apps For iOS

   One of the main characteristics of a Progressive Web App (PWA) is app-likeness. Although your app is technically run in the web browser, you should strive to make it look — and feel — as good as a native application.

Chunked transfer encoding

   Chunked transfer encoding is a streaming data transfer mechanism available in version 1.1 of the Hypertext Transfer Protocol (HTTP). In chunked transfer encoding, the data stream is divided into a series of non-overlapping "chunks"