Putlocker describes different online file hosting index sites utilized for streaming entertainment media, particularly films and tv series, for complimentary. The preliminary site came from the United Kingdom as early as 2011, and grew to receive countless day-to-day visitors after the shutdown of Megaupload. In Might 2016, the website was blocked in the UK by a High Court order,  and at its peak prior to a temporary closure in late 2016, Alexa Web noted Putlocker as ranking among the top 250 most-visited websites worldwide. Putlocker has actually been reported by the Movement Photo Association of America (MPAA) as a major piracy threat.
Putlocker's domain address has actually altered several times throughout its history, with a number of URLs bearing the Putlocker name being suspended or seized. It is not openly recognized whether a main Putlocker website maintained by the initial group remains available online, but a minimum of fifty mirror or proxy sites, many of which use the Putlocker name, have actually been determined.
Putlocker came from the United Kingdom under the URL putlocker.com. In early January 2012, the website got about 800,000 visitors a day, however after the popular website Megaupload was shut down due to copyright violation, Putlocker started receiving approximately 1.6 million visitors a day The site's operations officer, Adrian Petroff, discovered Megaupload's closure fretting, stating "who requires SOPA when a studio officer can make a wish/hit list and sites 'voluntarily' closed down?"
In March 2012, Putlocker was determined by Alfred Perry, vice president for worldwide content defense at Paramount Pictures, as one of the "leading 5 rogue cyberlocker services".  The website's URL was changed to putlocker.bz, an address which was taken by the Authorities Intellectual Residential Or Commercial Property Crime System of the UK in June 2014, and was consequently changed to putlocker.is, a domain located in Iceland.
From around early October 2016, the putlocker.is address showed an error stating that the site's host service was unattainable.  Around this time, the Movie Association of America (MPAA) reported Putlocker to the Workplace of the United States Trade Agent as a piracy risk. The MPAA exposed that Putlocker ran from Vietnam, and that its servers were hosted by the Swiss company Personal Layer.
Prior to its closure, putlocker.is was listed among the 250 leading sites globally and the leading 150 in the United States, according to Alexa information. A mirror site under the address putlocker.today appeared shortly after the presumed termination of putlocker.is, and on October 17, 2016, an address under the name putlocker9.com was reported to be offered.
On 2 November 2016, the putlocker.is address became active once again, redirecting its users to the updated URL putlockers.ch.On 27 February 2017, the putlockers.ch address was suspended after a judgment by a Tribunal d'arrondissement of Luxembourg in favour of the Belgian Entertainment Association, and the URL transferred ownership to EuroDNS. The primary legal officer of EuroDNS, Luc Seufer, specified that EuroDNS is required to "avoid any 'reactivation' of this domain name [putlockers.ch] until its expiration date". Following the seizure of the putlockers.ch address, the formerly utilized putlocker.is domain was made functional once again.
In March 2017, it was reported that Ted Osius, then United States Ambassador to Vietnam, held a meeting with Truong Minh Tuan, Vietnam's Minister of Information and Communications, throughout which Osius advised for the criminal prosecution of Putlocker, in addition to the websites 123Movies and KissCartoon, for copyright infringement.
Not long after, putlocker.is, which altered to putlockertv.is and subsequently putlockers.cc, was reported to redirect visitors to a scamming website.  In May 2017, at least three working sites bearing the Putlocker name were understood to be offered: putlocker.rs, with a Serbian top-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 internet users in the UK are either infringing copyright through streaming or prohibited downloads, with pirated TELEVISION material mostly accessed through Kodi (16%) or Putlocker (17%)".  In August 2017, Justice John Nicholas of the Federal Court of Australia purchased Australian internet service suppliers to block access to 42 piracy websites in a case brought by Town Roadshow, with Putlocker, KissCartoon, and GoMovies being here among those bought to be blocked.
In June 2018, Trevon Maurice Franklin of Fresno, California pleaded guilty to breaching federal copyright law back in February 2016, when he downloaded the superhero movie Deadpool from Putlocker and then published it to Facebook eight days after the movie was launched theatrically in the United States.  As a result, the movie was viewed over 6 million times totally free, with the overall retail value of the copies being approximated at around $2,500.  U.S. District Judge John A. Kronstadt set 27 September as the sentencing date for the federal class-A misdemeanor, which carries a possible charge of as much as one year in prison, in addition to a $100,000 fine.  After missing the September 27 sentencing hearing, Franklin was sentenced in October to 24 days in federal detention followed by a year of monitored release, including 20 hours of community service each week.