pbs.org
Mostly blocked
38 of the 39 URLs we have a verdict for under pbs.org are blocked in mainland China; 1 are not. The Great Firewall silently drops its packets so requests time out, poisons its DNS and resets the connection. 1,608 tests have been run under this domain since 2011-05-03, the most recent on 2026-08-17.
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://pbs.orgas of 2026Intermittenthttps://Pbs.orgas of 2026Blockedhttp://www.pbs.orgas of 2026Blockedhttps://www.pbs.orgBlockedPages and subdomains (35)
http://pbs.org/povas of 2026Blockedhttp://pbs.org/wgbhas of 2026Blockedhttp://pbs.org/wgbh/pagesas of 2026Blockedhttp://pbs.org/independentlensas of 2026Blockedhttp://pbs.org/wgbh/pages/frontlineBlockedhttp://pbs.org/wgbh/pages/frontline/gateas of 2026Blockedhttp://pbs.org/wgbh/pages/frontline/tibetBlockedhttp://pbs.org/wgbh/pages/frontline/tankmanas of 2026Blockedhttps://to.pbs.orgBlockedhttp://video.pbs.orgas of 2026Blockedhttps://video.pbs.orgBlockedhttps://www.pbs.org/videoas of 2026Blockedhttp://www.pbs.org/newshouras of 2026Blockedhttps://www.pbs.org/newshourBlockedhttps://www.pbs.org/show/newshourBlockedhttp://www.pbs.org/newshour/rundownBlockedhttp://www.pbs.org/video/1146923141as of 2026Blockedhttp://www.pbs.org/election2016/homeBlockedhttp://video.pbs.org/video/1146923141Blockedhttp://www.pbs.org/first-peoples/homeas of 2025Blockedhttp://www.pbs.org/show/pbs-space-timeBlockedhttp://www.pbs.org/wgbh/pages/frontlineBlockedhttp://www.pbs.org/wgbh/pages/frontline/gateas of 2026Blockedhttp://www.pbs.org/wgbh/pages/frontline/tankmanBlockedhttps://www.pbs.org/video/frontline-digital-nationas of 2026Blockedhttp://www.pbs.org/wgbh/frontline/film/rise-of-isisas of 2026Blockedhttp://www.pbs.org/wgbh/nova/body/disease-detective.htmlas of 2026Blockedhttps://www.pbs.org/video/endangered-species-basics-zfpzwnas of 2026Blockedhttp://www.pbs.org/newshour/bb/asia-july-dec09-china2_07-07as of 2026Blockedhttp://www.pbs.org/wgbh/pages/frontline/secret-state-of-north-koreaas of 2026Blockedhttp://www.pbs.org/newshour/bb/american-rapper-taps-flow-chinas-economyBlockedhttp://www.pbs.org/wnet/religionandethics/2014/02/21/february-21-2014-secular-ethics/22165as of 2026Blockedhttps://www.pbs.org/newshour/show/tribes-across-north-america-converge-standing-rock-hoping-heardas of 2026Blockedhttp://www.pbs.org/wgbh/pages/frontline/pressroom/press-release-frontline-goes-inside-the-secret-state-to-explore-life-under-kim-jong-unBlockedhttp://www.pbs.org/wgbh/pages/frontline/foreign-affairs-defense/secret-state-of-north-korea/un-north-korea-commits-unspeakable-atrocitiesas of 2026BlockedAbout pbs.org and the Great Firewall
38 of the 39 URLs we have a verdict for under pbs.org are blocked in mainland China; 1 are not. The Great Firewall silently drops its packets so requests time out, poisons its DNS and resets the connection. 1,608 tests have been run under this domain since 2011-05-03, the most recent on 2026-08-17.
Plain HTTP and HTTPS differ here: http://pbs.org is intermittent, https://pbs.org is 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 pbs.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
pbs.org is ranked #1,007 among the world's most-visited domains (Tranco).
Sites of similar popularity:zhihu.comgiphy.comflipkart.comcolumbia.edu
Each URL's status is its verdict over the last 90 days, the same one its own page headlines.