HTTP

HTTP HTTP (Hypertext Transfer Protocol) is an application layer protocol in the Internet protocol suite model for distributed, collaborative, hypermedia information systems. HTTP is the foundation of data communication for the World Wide Web, where hypertext documents include hyperlinks to other resources that the user can easily access, for example by a mouse click or by tapping the screen in a web browser.

Development of HTTP was initiated by Tim Berners-Lee at CERN in 1989 and summarized in a simple document describing the behavior of a client and a server using the first HTTP version, named 0.9. That version was subsequently developed, eventually becoming the public 1.0.

Development of early HTTP Requests for Comments (RFCs) started a few years later in a coordinated effort by the Internet Engineering Task Force (IETF) and the World Wide Web Consortium (W3C), with work later moving to the IETF.

HTTP/1 was finalized and fully documented (as version 1.0) in 1996. It evolved (as version 1.1) in 1997 and then its specifications were updated in 1999, 2014, and 2022. Its secure variant named HTTPS is used by more than 85% of websites.

HTTP/2, published in 2015, provides a more efficient expression of HTTP's semantics "on the wire". it is supported by 66.2% of websites (35.3% HTTP/2 + 30.9% HTTP/3 with backwards compatibility) and supported by almost all web browsers (over 98% of users). It is also supported by major web servers over Transport Layer Security (TLS) using an Application-Layer Protocol Negotiation (ALPN) extension where TLS 1.2 or newer is required.

HTTP/3, the successor to HTTP/2, was published in 2022. it is now used on 30.9% of websites and is supported by most web browsers, i.e. (at least partially) supported by 97% of users. HTTP/3 uses QUIC instead of TCP for the underlying transport protocol. Like HTTP/2, it does not obsolesce previous major versions of the protocol. Support for HTTP/3 was added to Cloudflare and Google Chrome first, and is also enabled in Firefox. HTTP/3 has lower latency for real-world web pages, if enabled on the server, and loads faster than with HTTP/2, in some cases over three times faster than HTTP/1.1 (which is still commonly only enabled). Provided by Wikipedia

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    by Winner, Septimus, 1827-1902. What is home without a mother., White, C. C., http://id.loc.gov/authorities/names/n96066496 singer., Waters, Horace, 1812-1893, http://id.loc.gov/authorities/names/nr93033275 bookseller., Upton, Henry O. (Henry Orlando), 1840-1919. All going home., Tolman, H. (Henry). Handsome Sarah Jane!, Thomas, J. R. (John Rogers), 1830-1896. Sword of Bunker Hill., Tennyson, Alfred Tennyson, Baron, 1809-1892. Last rose of summer., Stowe, Harriet Beecher, 1811-1896. Uncle Tom' cabin., Sloan, Thomas, 1839 or 1840- Kitty Wells., Scott, John, Lady, 1810-1900. Annie Laurie. http://id.loc.gov/authorities/names/no98059555, Rice, Dan, 1823-1900, http://id.loc.gov/authorities/names/no90022946 singer., Reed, George P., publisher., Percival, W. We meet again., Percival, W. Bonny Eloise., Prendergast, T. B. (Thomas B.), -1869, http://id.loc.gov/authorities/names/nr95045670 singer., Peckham, Joshua, 1809 or 1810-1858, http://id.loc.gov/authorities/names/nr96023895 publisher., Peckham, George W., http://id.loc.gov/authorities/names/nr2003020983 publisher., Partridge, Horace, -1902, http://id.loc.gov/authorities/names/no97041795 bookseller., Morris, George Pope, 1802-1864. Annie of the vale., Moreland, John H., http://id.loc.gov/authorities/names/nr2003003376 printer., Melville, Charles, http://id.loc.gov/authorities/names/n83021542 singer., Martz, Al, singer., Martz, Al, publisher., Mandeville, Agatha, singer., Lefavour, J. S. (John S.), 1831-1892. Flora May., Lefavour, J. S. (John S.), 1831-1892. Drop a tear you darkies!, Kidder, M. A. (Mary Ann), 1820-1905. Marching along., Jackson, John M., http://id.loc.gov/authorities/names/no99089844 printer., Howe, J. B. (J. Burdett), 1828-1908, http://id.loc.gov/authorities/names/n82125831 singer., Howard, Cordelia, 1848-1941, http://id.loc.gov/authorities/names/nr95045388 singer., Hasset, John, singer., Hanby, Benjamin Russel, 1833-1867. Darling Nelly Gray. http://id.loc.gov/authorities/names/n00114556, Foster, Stephen Collins, 1826-1864. Willie we have missed you., Foster, Stephen Collins, 1826-1864. My old Kentucky home. http://id.loc.gov/authorities/names/n92023845, Farwell, J. H., http://id.loc.gov/authorities/names/no98074381 printer., Farwell, F. F., http://id.loc.gov/authorities/names/no98074383 printer., Duley, John Henry, 1835-1864. Gal in blue!, Ditson, Oliver, 1811-1888. Charming young widow., De Marsan, H. (Henry), http://id.loc.gov/authorities/names/no98084135 publisher., Cowden, Jason E. (Jason Everett), 1837- Lawrence disaster., Cook, Eliza, 1818-1889. Little Topsy's song., Carroll, J., http://id.loc.gov/authorities/names/n88608076 singer., Bradbury, William B. (William Batchelder), 1816-1868, http://id.loc.gov/authorities/names/nr91025464 musician., Bennett, Ned, http://id.loc.gov/authorities/names/nb99147619 singer., Andrews, John C., http://id.loc.gov/authorities/names/n82135154 printer., G.D. Russel & Company, publisher., Hall, Wm. & Son, publisher., Firth, Pond & Co., http://id.loc.gov/authorities/names/nr97039283 publisher.
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