4chan.org
Mixed
Results vary across 4chan.org: of 107 URLs tested, 14 are blocked, 9 are disrupted some of the time, 83 load normally and 1 has no conclusive recent result. The Great Firewall resets the connection and silently drops its packets so requests time out. 3,123 tests have been run under this domain since 2011-03-10, the most recent on 2026-08-02.
The two are filtered by different means — an unencrypted request by the address and keywords it carries in the clear, an encrypted one by the server name in its TLS handshake — so one working while the other does not is normal.
The site itself
http://4chan.orgBlockedhttps://4chan.orgNot blockedhttp://www.4chan.orgas of 2026Blockedhttps://www.4chan.orgNot blockedhttp://www.4chan.org:80as of 2025BlockedPages and subdomains (75)
http://4chan.org/bBlockedhttps://4chan.org/bIntermittenthttp://4chan.org/jpIntermittenthttp://4chan.org/gifas of 2026Blockedhttp://4chan.org/polBlockedhttp://4chan.org/lgbtBlockedhttp://is2.4chan.orgas of 2026Intermittenthttp://sys.4chan.orgas of 2026Blockedhttps://sys.4chan.orgas of 2026Not blockedhttp://www.4chan.org/bas of 2026Intermittenthttp://www.4chan.org/kas of 2025Blockedhttp://boards.4chan.orgIntermittenthttps://boards.4chan.orgNot blockedhttp://www.4chan.org/mlpIntermittenthttp://boards.4chan.org/bas of 2026Blockedhttp://boards.4chan.org/vBlockedhttp://boards.4chan.org/eIntermittenthttp://boards.4chan.org/sBlockedhttp://boards.4chan.org/gas of 2026Blockedhttp://boards.4chan.org/aIntermittenthttps://boards.4chan.org/cas of 2026Not blockedhttps://boards.4chan.org/bas of 2026Not blockedhttps://boards.4chan.org/eas of 2026Not blockedhttps://boards.4chan.org/sas of 2026Not blockedhttps://boards.4chan.org/aNot blockedhttps://boards.4chan.org/was of 2025Not blockedhttps://boards.4chan.org/mNot blockedhttps://boards.4chan.org/fas of 2026Not blockedhttps://boards.4chan.org/nNot blockedhttps://boards.4chan.org/vas of 2026Not blockedhttps://boards.4chan.org/gNot blockedhttps://boards.4chan.org/kNot blockedhttps://boards.4chan.org/oas of 2026Not blockedhttps://boards.4chan.org/iNot blockedhttps://boards.4chan.org/pNot blockedhttps://boards.4chan.org/3as of 2026Not blockedhttps://boards.4chan.org/xas of 2026Not blockedhttps://boards.4chan.org/hNot blockedhttps://boards.4chan.org/uNot blockedhttps://boards.4chan.org/das of 2026Not blockedhttps://boards.4chan.org/yas of 2026Not blockedhttps://boards.4chan.org/tas of 2026Not blockedhttps://boards.4chan.org/rNot blockedhttp://www.boards.4chan.orgUnresolvablehttp://boards.4chan.org/intIntermittenthttp://boards.4chan.org/polas of 2026Blockedhttps://boards.4chan.org/tvNot blockedhttps://boards.4chan.org/cmNot blockedhttps://boards.4chan.org/jpas of 2026Not blockedhttps://boards.4chan.org/vtas of 2026Not blockedhttps://boards.4chan.org/vgNot blockedhttps://boards.4chan.org/vmas of 2026Not blockedhttps://boards.4chan.org/vpas of 2026Not blockedhttps://boards.4chan.org/vras of 2026Not blockedhttps://boards.4chan.org/coNot blockedhttps://boards.4chan.org/anas of 2026Not blockedhttps://boards.4chan.org/tgas of 2026Not blockedhttps://boards.4chan.org/spas of 2026Not blockedhttps://boards.4chan.org/xsas of 2026Not blockedhttps://boards.4chan.org/pwas of 2025Not blockedhttps://boards.4chan.org/poas of 2026Not blockedhttps://boards.4chan.org/ckNot blockedhttps://boards.4chan.org/icas of 2026Not blockedhttps://boards.4chan.org/wgas of 2026Not blockedhttps://boards.4chan.org/muas of 2026Not blockedhttps://boards.4chan.org/faNot blockedhttps://boards.4chan.org/gdas of 2026Not blockedhttps://boards.4chan.org/hcas of 2026Not blockedhttps://boards.4chan.org/hmas of 2026Not blockedhttps://boards.4chan.org/hras of 2025Not blockedhttps://boards.4chan.org/intNot blockedhttps://boards.4chan.org/polNot blockedhttps://boards.4chan.org/cglas of 2026Not blockedhttps://boards.4chan.org/vmgas of 2026Not blockedhttps://boards.4chan.org/vstNot blockedShowing 80 of 107 tested URLs under this domain. See them all
About 4chan.org and the Great Firewall
Results vary across 4chan.org: of 107 URLs tested, 14 are blocked, 9 are disrupted some of the time, 83 load normally and 1 has no conclusive recent result. The Great Firewall resets the connection and silently drops its packets so requests time out. 3,123 tests have been run under this domain since 2011-03-10, the most recent on 2026-08-02.
Plain HTTP and HTTPS differ here: http://4chan.org is blocked, https://4chan.org is not blocked. The two are filtered by different means — an unencrypted request by the address and keywords it carries in the clear, an encrypted one by the server name in its TLS handshake — so one working while the other does not is normal.
A VPN or another circumvention tool routes the request outside mainland China, past the filtering that blocks 4chan.org. GreatFire runs GreatFire VPN; the Analyzer also tests the domains of many VPN and proxy providers, so you can check whether one is reachable before relying on it.
Elsewhere on the site
Each URL's status is its verdict over the last 90 days, the same one its own page headlines.