5ch.net

5ch is one of Japan's largest anonymous online message boards, established in 1999. Originally called "2channel" and founded by Hiroyuki Nishimura, it underwent a transfer of ownership and internal disputes in 2014, leading to Jim Watkins, the administrator of 8chan/8kun, becoming the administrator and resulting in the current name .
==Vital signs==
5ch's vulnerability to cyberattacks and script-based trolling has resulted in a dramatic decrease in users.
Daily post counts continue to decline, and archived board data remains inaccessible due to a cyberattack in 2023.5ch official log
==Spinoff sites==
* megabbs.com: launched on June 3,2000- in 
* bbspink: launched on January ,2001, It utilizes the same system as 2ch and primarily hosts adult content not permitted on 2ch. It is operated by Jim Watkins. - 
* 1ch→amezo.jp: launched on October 5,2001,In 2005, the domain was changed to amezo.jp. It is operated by Yasushi Shimizu. - in 
* 2ch.bufuu.mnw.jp→16ch.net: launched on December,2003 - in 
* open2ch: launched on June 7, 2012, by IT engineer Satoru Yano, is modeled after 2channel - 
* 2ch.sc: launched on April ,2014, by Hiroyuki Nishimura, 2channel clone - 
* talk.jp: launched on July 1,2023 . It is operated by Talk Technologies Inc. - 
==Archive Projects==
* logsoku: launched shortly after 2ch's inception, lacks the earliest thread logs.
Its oldest available data originates from threads surviving around 2003.
In addition to archiving 2ch.sc, it also collects logs from open2ch.net.
Offering both thread title and full-text search, the site prioritizes user convenience with extensive filtering and sorting options for title searches. - in 
* mimizun: This website archives past threads from 2channel.not comprehensive, it may contain log data no longer available on 5ch. no longer update.- 
== History https://ja.wikipedia.org/wiki/2%E3%81%A1%E3%82%83%E3%82%93%E3%81%AD%E3%82%8B%E3%81%AE%E6%AD%B4%E5%8F%B2#%E7%AE%A1%E7%90%86%E6%A8%A9%E9%99%90%E7%B4%9B%E4%BA%89 ==
 2ch/5ch History (Simplified) 
Date 	Event
1999-05-30 	Hiroyuki Nishimura launched "2channel" as a refuge from issues plaguing "Amezo Bulletin Board," including trolling and server instability.
1999-12-26 - 29	Server problems, trolling, and a virus threatened 2channel's parent site, "Amezo." However, most users had already migrated to 2channel.
1999-12-30 	"Amezo" shut down, concluding its two-year run. This led to a complete user migration to 2channel, further fueling its growth.
2001 	A 1,000-post limit per thread was implemented.
2001-08-25 	Server instability due to increasing traffic led to the closure of numerous boards on 2channel, posing a significant threat to the site's existence.
2001-08-30 	"Futaba Channel" was created as a backup for 2channel. Futaba's open-source software later served as the foundation for 4chan, known as the "English-language version of 2channel/Futaba Channel," launched in October 2003
2003-01 	2channel began logging and storing IP addresses for all posts, ending its complete anonymity. This was implemented in response to increasing instances of threats, defamation, and criminal activity facilitated through the platform.
2004-01-10 	A coordinated "F5 attack" (continuous reloading) from South Korean internet users overwhelmed 2channel servers with over 300 million hits in a day. The attack was reportedly motivated by anti-Korean websites and the Japanese government's plan to issue Takeshima (Dokdo) postage stamps.
2004-05-25 	A potential outage of "2ch.net" on May 29th was averted due to successful efforts by the administrators during a server migration and DNS transfer. This marked the second major threat to 2channel's continued operation
2004-05-28 - 29	A full system migration resulted in various issues, including posting failures, delayed processing leading to duplicate posts, and server crashes. The problems were eventually resolved.
2005-07-17 	ddos attack overloaded some servers, making several boards inaccessible. Peak attack rates reached approximately 130,000 accesses in 10 minutes.
2006-06-19 	Following intermittent server outages, administrator "FOX★" attributed the problems to an attack. DoS attack with 500 million accesses per second was later identified as the cause.
2007-03-05 	The Yomiuri Shimbun reported that Hiroyuki Nishimura faced over 400 million yen in debt from legal actions, having lost 43 out of over 50 civil lawsuits.
2009-01-02 	Hiroyuki Nishimura transferred 2channel's ownership to a Singaporean company, PACKET MONSTER INC.
2009-03-24 	Japan's victory in the World Baseball Classic caused multiple 2channel servers to crash.
2010 	This year saw a significant increase in civil lawsuits aiming to obtain court orders for the deletion of posts and disclosure of user information on 2channel. 2channel complied with court orders that were correctly filed. According to the National Police Agency, harmful online content increased by 75% in the first half of fiscal year 2010 compared to 2009, with 2channel having the most unremoved content following deletion requests for the second consecutive year.
2010-03-01 	A large-scale cyberattack from South Korea (a primitive F5 reload attack involving approximately 50,000 users) rendered 2channel inaccessible for over a day. The attack was believed to be in response to posts about South Korean figure skater Kim Yuna's gold medal at the 2010 Vancouver Olympics and the death of a South Korean student in Russia. This attack also affected US government-related servers sharing the same hosting server, causing approximately $2.5 million USD in damages. Pacific Internet Exchange (San Francisco, California), the server administrator, filed a complaint with the FBI and San Francisco Police Department, considering legal action.
2010-03-02 	Most servers were restored by the evening, but logs from boards hosted on the Dubai server were permanently lost.
2011-01-06 	A vulnerability in the bulletin board system's CGI script inadvertently exposed "cap" passwords, leading to unauthorized deletion and creation of threads, and misuse of moderator privileges on some boards.
2011-08-25 	A large-scale server outage occurred from around 11:45 AM due to an attack exploiting an Apache vulnerability. Most 2channel servers were temporarily down. Partial recovery occurred around 3:30 AM, but some servers remained inaccessible.
2011-11-24 	The operating company's office in Sapporo was raided by police, who seized four boxes of documents and PCs. One of 2channel's servers went down during the raid, making boards like the "Drugs/Illegal" board inaccessible. Weekly Asahi magazine reported this as the beginning of the "2channel Eradication Operation" by the Tokyo Metropolitan Police Department.
2013-08 	A data breach exposed personal information of "2channel Viewer" paid service users.
2014-02-19 	control of 2channel was transferred to Jim Watkins who claimed he dismissed the previous administrators, including founder Hiroyuki Nishimura, due to unpaid server fees.
2014-04-01 	Hiroyuki Nishimura declared the takeover of 2channel illegal. He then established a competing forum, 2ch.sc, and became its administrator.
2015-01-08 - 14	2ch.net experienced downtime due to a DDoS attack targeting its related site site, 8chan, which shared the same server.
2015-09 	Hiroyuki Nishimura initiated legal action against Jim Watkins.
2016-05 - 07 	Hiroyuki Nishimura secured the "2ch" and "2channel" trademarks within Japan.
However, the World Intellectual Property Organization (WIPO) dismissed his claim regarding illegal occupation of the "2ch.net" domain.
Consequently, Hiroyuki retained the trademarks, while Race Queen maintained domain control
2017-10-01 	Citing harassment from Hiroyuki Nishimura, Jim Watkins transferred 2channel to Loki Technology Inc., which subsequently rebranded the site as "5channel" (5ch.net)
2018-06-22 	Tokyo Plus, led by Hiroyuki Nishimura, won a lawsuit against NT Technology Inc. (associated with Jim Watkins). The Tokyo District Court ruled NT Technology breached its contract, ordering damages and a refund of prepaid server fees.
2019-04-25 	The 8chan Twitter account announced the Tokyo High Court overturned the lower court's ruling, dismissing Tokyo Plus's claims.
2019-12-04 	The 5channel Twitter account confirmed the Supreme Court rejected the appeal, finalizing the Tokyo High Court's decision and dismissing all of Tokyo Plus's claims.
2021-06 	Daily posts on 5ch fell below 3 million.
2023-07 	Jane Style, previously the dedicated browser for 5channel, severed its connection with 5ch and transitioned into a dedicated browser for Talk. This forced Jane Style users to migrate to Talk. Furthermore, because Jane, Inc. (the developer of Jane Style) revoked access to its exclusively provided API key, other 5channel-specific browsers also lost the ability to connect to 5channel.
2023-10 	Frequent server downtime occurred due to DDoS attacks, causing more than half of the boards on 5ch to become inoperable.
2024-07-18 	A cyberattack resulted in widespread server outages across most of the boards on 5ch.
2024-08-03 	Daily posts fell below 1.5 million.
2024-09-24 	Daily posts fell below 810,000.
== References ==