phys.org

Mixed

Results vary across phys.org: of 6 URLs tested, 3 are disrupted some of the time and 3 load normally. 168 tests have been run under this domain since 2012-05-24, the most recent on 2026-06-24.

Plain HTTP and HTTPS differ here: http://phys.org is intermittent, https://phys.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.

6URLs tested
3accessible
168tests all-time
2012first tested
2 mo agolast tested

The site itself

http://phys.orgIntermittenthttps://phys.orgas of 2026Not blocked

Pages and subdomains (4)

https://phys.org/news/2013-06-carbon-world-forests-absorb.htmlas of 2026Not blockedhttp://phys.org/news/2015-03-mathematicians-year-old-problem.htmlIntermittenthttp://phys.org/news/2015-07-historic-environmental-awareness-china.htmlas of 2026Intermittenthttps://phys.org/news/2018-01-good-storytelling-base-modern-society.htmlas of 2026Not blocked

About phys.org and the Great Firewall

Is phys.org blocked in mainland China?

Results vary across phys.org: of 6 URLs tested, 3 are disrupted some of the time and 3 load normally. 168 tests have been run under this domain since 2012-05-24, the most recent on 2026-06-24.

Why does http://phys.org behave differently from https://phys.org?

Plain HTTP and HTTPS differ here: http://phys.org is intermittent, https://phys.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.

Elsewhere on the site

Most-blocked .org domainsEvery tested URL under phys.org

Each URL's status is its verdict over the last 90 days, the same one its own page headlines.