fda.gov

Mixed

Results vary across fda.gov: of 5 URLs tested, 1 is disrupted some of the time and 4 load normally. 133 tests have been run under this domain since 2012-05-18, the most recent on 2026-07-30.

Plain HTTP and HTTPS differ here: http://fda.gov is intermittent, https://fda.gov 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.

5URLs tested
4accessible
133tests all-time
2012first tested
14 h agolast tested

The site itself

http://fda.govas of 2026Intermittenthttps://fda.govas of 2026Not blockedhttp://www.fda.govNot blockedhttps://www.fda.govas of 2026Not blocked

Pages and subdomains (1)

http://www.fda.gov/downloads/Drugs/Guidances/UCM193282.pdfas of 2026Not blocked

About fda.gov and the Great Firewall

Is fda.gov blocked in mainland China?

Results vary across fda.gov: of 5 URLs tested, 1 is disrupted some of the time and 4 load normally. 133 tests have been run under this domain since 2012-05-18, the most recent on 2026-07-30.

Why does http://fda.gov behave differently from https://fda.gov?

Plain HTTP and HTTPS differ here: http://fda.gov is intermittent, https://fda.gov 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

fda.gov is ranked #751 among the world's most-visited domains (Tranco).

Sites of similar popularity:sophos.comappcenter.msglobalsign.comconviva.com

Most-blocked .gov domainsEvery tested URL under fda.gov

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