who.is
Mixed
Results vary across who.is: of 3 URLs tested, 1 is disrupted some of the time and 2 load normally. 384 tests have been run under this domain since 2011-03-20, the most recent on 2026-08-22.
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://who.isIntermittenthttps://who.isas of 2026Not blockedhttp://www.who.isNot blockedAbout who.is and the Great Firewall
Results vary across who.is: of 3 URLs tested, 1 is disrupted some of the time and 2 load normally. 384 tests have been run under this domain since 2011-03-20, the most recent on 2026-08-22.
Plain HTTP and HTTPS differ here: http://who.is is intermittent, https://who.is 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
Each URL's status is its verdict over the last 90 days, the same one its own page headlines.