Putlocker refers to various online documents hosting index web sites used for streaming enjoyment media, specifically films as well as television collection, free of cost. The initial site originated in the United Kingdom as early as 2011, and expanded to receive countless daily visitors after the shutdown of Megaupload. In May 2016, the website was blocked in the UK by a High Court order,  and at its top prior to a short-term closure in late 2016, Alexa Web provided Putlocker as ranking among the top 250 most-visited sites worldwide. Putlocker has been reported by the Motion Picture Association of America (MPAA) as a major piracy risk.
Putlocker's domain address has changed multiple times throughout its history, with a number of URLs bearing the Putlocker name being suspended or seized. It is not publicly known whether an official Putlocker site maintained by the original team remains available online, but at least fifty mirror or proxy sites, a lot of which use the Putlocker name, have been identified.
Launch and popularity
Putlocker originated in the United Kingdom under the URL putlocker.com. In early January 2012, the site received about 800,000 visitors a day, but after the popular site Megaupload was shut down due to copyright infringement, Putlocker began receiving roughly 1.6 million visitors a day. The site's operations officer, Adrian Petroff, found Megaupload's closure worrying, stating "who needs SOPA when a studio exec can make a wish/hit list and sites 'voluntarily' shut down?"
In March 2012, Putlocker was identified by Alfred Perry, vice president for worldwide content protection at Paramount Pictures, as one of the "top 5 rogue cyberlocker services". The site's URL was changed to putlocker.bz, an address which was seized by the Police Intellectual Property Crime Unit of the UK in June 2014, and was subsequently changed to putlocker.is, a domain name located in Iceland.
From about early October 2016, the putlocker.is address displayed a mistake mentioning that the website's host solution was hard to reach. Around this time, the Motion Picture Association of America (MPAA) reported Putlocker to the Workplace of the United States Profession Agent as a piracy threat. The MPAA disclosed that Putlocker ran from Vietnam, and that its web servers were hosted by the Swiss firm Private Layer.
Before its closure, putlocker.is was listed amongst the 250 leading web sites worldwide and the top 150 in the USA, according to Alexa data. A mirror site under the address putlocker.today showed up soon after the assumed discontinuation of putlocker.is, and on October 17, 2016, an address under the name putlocker9.com was reported to be readily available.
On 2 November 2016, the putlocker.is address ended up being active once more, redirecting its customers to the updated LINK putlockers.ch. On 27 February 2017, the putlockers.ch address was put on hold after a ruling by a Tribunal d'arrondissement of Luxembourg in favour of the Belgian Entertainment Organization, and the URL moved possession to EuroDNS.   The chief legal police officer of EuroDNS, Luc Seufer, specified that EuroDNS is needed to "protect against any type of 'awakening' of this domain name [putlockers.ch] up until its expiration day". Following the seizure of the putlockers.ch address, the previously utilized putlocker.is domain name was made useful once more.
In March 2017, it was reported that Ted Osius, then USA Ambassador to Vietnam, held a conference with Truong Minh Tuan, Vietnam's Preacher of Info as well as Communications, during which Osius urged for the criminal prosecution of Putlocker, along with the websites 123Movies and also KissCartoon, for copyright violation.
Not long after, putlocker.is, which transformed to putlockertv.is as well as subsequently putlockers.cc, was reported to reroute site visitors to a scamming website.  In Might 2017, a putlocker minimum of three working sites bearing the Putlocker name were known to be available: putlocker.rs, with a Serbian high-level domain (TLD), putlockertv.ist, with an Istanbulite TLD, and putlockerhd.is, with an Icelandic one.
In July 2017, the International Service Times reported that "15% of web individuals in the UK are either infringing copyright with streaming or prohibited downloads, with pirated TELEVISION product mostly accessed with Kodi (16%) or Putlocker (17%)". In August 2017, Justice John Nicholas of the Federal Court of Australia got Australian internet service providers to obstruct access to 42 piracy sites in an instance brought by Town Roadshow, with Putlocker, KissCartoon, and GoMovies being among those purchased to be obstructed.