go.dev
Mixed
Results vary across go.dev: of 7 URLs tested, 2 are blocked, 3 are disrupted some of the time and 2 load normally. The Great Firewall resets the connection, silently drops its packets so requests time out and breaks its TLS handshake. 88 tests have been run under this domain since 2019-11-23, the most recent on 2026-05-06.
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://go.devas of 2026Intermittenthttps://go.devas of 2026BlockedPages and subdomains (5)
https://go.dev/doc/installas of 2026Intermittenthttps://go.dev/dl/go1.22.12.linux-amd64.tar.gzas of 2026Intermittenthttp://pkg.go.devBlockedhttps://pkg.go.devas of 2026Not blockedhttps://pkg.go.dev/github.com/2dust/v2rayNGas of 2026Not blockedAbout go.dev and the Great Firewall
Results vary across go.dev: of 7 URLs tested, 2 are blocked, 3 are disrupted some of the time and 2 load normally. The Great Firewall resets the connection, silently drops its packets so requests time out and breaks its TLS handshake. 88 tests have been run under this domain since 2019-11-23, the most recent on 2026-05-06.
Plain HTTP and HTTPS differ here: http://go.dev is intermittent, https://go.dev 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 go.dev. 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.