tr.im
Mixed
Results vary across tr.im: of 14 URLs tested, 5 are blocked, 2 are disrupted some of the time, 6 load normally and 1 has no conclusive recent result. The Great Firewall resets the connection and silently drops its packets so requests time out. 494 tests have been run under this domain since 2013-08-27, the most recent on 2026-07-23.
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://tr.imas of 2026Blockedhttps://tr.imas of 2025Not blockedPages and subdomains (12)
http://tr.im/4brhcBlockedhttp://tr.im/4m9rfas of 2026Blockedhttp://tr.im/4m9rgIntermittenthttp://tr.im/hAdC4as of 2026Blockedhttp://tr.im/1GiA6Intermittenthttps://tr.im/UUmzQas of 2025Not blockedhttps://tr.im/JQQYAas of 2025Not blockedhttps://tr.im/XDGPEas of 2025Not blockedhttps://tr.im/hAdC4as of 2025Not blockedhttps://tr.im/F4ipras of 2025Not blockedhttp://tr.im/djy6330as of 2026Blockedhttps://tr.im:80/UUmzQNot enough dataAbout tr.im and the Great Firewall
Results vary across tr.im: of 14 URLs tested, 5 are blocked, 2 are disrupted some of the time, 6 load normally and 1 has no conclusive recent result. The Great Firewall resets the connection and silently drops its packets so requests time out. 494 tests have been run under this domain since 2013-08-27, the most recent on 2026-07-23.
Plain HTTP and HTTPS differ here: http://tr.im is blocked, https://tr.im 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 tr.im. 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.