ul.com
Mixed
Results vary across ul.com: of 8 URLs tested, 4 are disrupted some of the time, 2 load normally and 2 have no conclusive recent result. The site itself, http://ul.com, loads normally. 223 tests have been run under this domain since 2013-12-10, the most recent on 2026-11-05.
8URLs tested
2accessible
223tests all-time
2013first tested
3 h agolast tested
The site itself
http://ul.comas of 2026Not blockedhttp://www.ul.comIntermittentPages and subdomains (6)
http://ul.com/searchIntermittenthttp://ul.com/search/?q=high+techas of 2026Not blockedhttp://cis.ul.comUnresolvablehttps://aims.ul.comIntermittenthttp://clientportal.ul.comUnresolvablehttps://benchmarks.ul.com/systeminfoIntermittentAbout ul.com and the Great Firewall
Is ul.com blocked in mainland China?
Results vary across ul.com: of 8 URLs tested, 4 are disrupted some of the time, 2 load normally and 2 have no conclusive recent result. The site itself, http://ul.com, loads normally. 223 tests have been run under this domain since 2013-12-10, the most recent on 2026-11-05.
Elsewhere on the site
Each URL's status is its verdict over the last 90 days, the same one its own page headlines.