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Site Info - Olm.vnOverview of web technologies used by Olm.vn. Website Background Học trực tuyến cùng OLM - OlmTrang web cung cấp video bài giảng, câu hỏi tự luyện tập giúp học sinh học tập đạt kết quả cao nhất! OLM còn là nơi các bạn học sinh chia sẻ, hỏi đáp các bài tập khó, lời giải hay! automatic translation provided by Microsoft Learn online with OLM - OlmThe site offers video lectures, self-practiced questions to help students learn to achieve the highest results! OLM is also a place where students share, ask and answer difficult exercises, good solutions! Description on Homepage Top 10k among all websites Popularity rank JavaScript is a lightweight, object-oriented, cross-platform scripting language. JavaScript JavaScript is a lightweight, object-oriented, cross-platform scripting language, often used within web pages. jQuery is a JavaScript library that simplifies HTML document traversing, event handling, animating and Ajax interaction. Originally developed by John Resig. jQuery 3.4.1 Bootstrap is an open source HTML, CSS, and JavaScript framework. Popper is an open source JavaScript library for tooltips and popovers. Meteor is an open-source JavaScript web framework based on Node.js. Meteor Bootstrap is an open source HTML, CSS, and JavaScript framework. Bootstrap Semantic UI is a theme-able user interface framework. Semantic UI Cloudflare Server is a web server developed by Cloudflare. Nginx (pronounced as "engine X") is a lightweight open source web server developed by Igor Sysoev. Nginx 1.22.1 Node.js is a server-side JavaScript environment for writing network programs such as web servers, originally developed by Ryan Dahl. Node.js FPT (The Corporation for Financing and Promoting Technology) is a multinational information technology company headquartered in Vietnam. FPT FPT (The Corporation for Financing and Promoting Technology) is a multinational information technology company headquartered in Vietnam. FPT Cloudflare provides a content delivery network. Cloudflare provides DNS servers and other web services. Gmail is the email service provided by Google. DigiCert is an SSL certificate authority. This includes Verizon, whose Enterprise SSL Business has been acquired by DigiCert. Sectigo (formerly Comodo CA) is a US-based SSL certificate authority. Sectigo The CDNJS is a content distribution network, hosting a large number of JavaScript libraries, provided by CloudFlare. CDNJS Google Hosted Libraries (formerly called Google Libraries API) is a content distribution network for the most popular, open-source JavaScript libraries, provided by Google. Google Hosted Libraries jsDelivr is a service for hosting JavaScript files. jsDelivr Google Analytics is a free service to get detailed statistics about the visitors of a website, provided by Google. This includes the Ads conversion tracking and the Floodlight services. The Google Advertising network consists of AdSense, DoubleClick and other services. The Google Tag Manager is a Google service to support webmasters to manage tags on their websites. External Cascading Style Sheets define style rules in a separate CSS file. Embedded Cascading Style Sheets define a set of style rules in a <style> element within a web page. Inline Cascading Style Sheets define style rules directly within an (X)HTML element using the style attribute. Persistent cookies with an expiration time of up to 1 day. Persistent cookies with an expiration time between 1 day and 1 month. Cookies expiring in days HttpOnly cookies are used only in the HTTP protocol and not in client side scripts, which may increase security. Non-HttpOnly cookies are used in the HTTP protocol and also in client side scripts, which may be a security threat. Secure cookies are used only via an encrypted connections, which may increase security. Non-secure cookies may be used via an unencrypted connections, which may be a security threat. Brotli is a lossless compression algorithm developed by Google. Gzip (GNU zip) is a file compression algorithm. Gzip Compression The Internet Protocol version 6 (IPv6) provides amongst others a vastly larger address space than the preceding version 4. We consider a website to support IPv6 if a 128-bit address is assigned to it, regardless of the content delivered at that address. HTTP/2 is the second major version of the HTTP network protocol. The websites redirects visitors to use SSL encryption, e.g. from http://example.com/ to https://example.com/. The websites redirects visitors to its www subdomain, e.g. from example.com to www.example.com.
The Open Graph protocol, originally developed by Facebook, is an RDFa-based format that enables any web page to become a rich object in a social graph. JSON-LD (JavaScript Object Notation for Linked Data) is a method of encoding Linked Data using JSON. HTML5 is the fifth revision of the HTML standard. UTF-8 (8-bit Unicode Transformation Format) is a variable-length character encoding for Unicode, which is backwards compatible with ASCII. PNG (Portable Network Graphics) is a lossless compression image format, suitable to store graphics with uniformly colored areas, and originally introduced as a free, open-source successor of GIF. JPEG (Joint Photographic Experts Group) is a lossy compression method suitable to store photographic images. Scalable Vector Graphics (SVG) is an XML-based vector image format. Viet Nam Viet Nam
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