epa.gov

Mixed

Results vary across epa.gov: of 11 URLs tested, 1 is disrupted some of the time, 9 load normally and 1 has no conclusive recent result. 1,174 tests have been run under this domain since 2011-03-29, the most recent on 2026-07-30.

Plain HTTP and HTTPS differ here: http://epa.gov is not blocked, https://epa.gov is intermittent.

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.

11URLs tested

9accessible

1,174tests all-time

2011first tested

19 d agolast tested

The site itself

http://epa.govas of 2025Not blocked https://epa.govIntermittent http://www.epa.govas of 2026Not blocked https://www.epa.govNot blocked

Pages and subdomains (7)

https://www.epa.gov/caddis/exploratory-data-analysisNot enough data http://www.epa.gov/region01/ge/thesite/silverlake/reports/472624.pdfNot blocked http://www.epa.gov/region01/ge/thesite/silverlake/reports/447138.pdfNot blocked http://www.epa.gov/region01/ge/thesite/silverlake/reports/454824.pdfNot blocked http://www.epa.gov/region01/ge/thesite/silverlake/reports/454826.pdfNot blocked https://www.epa.gov/stationary-sources-air-pollution/clean-air-act-guidelines-and-standards-waste-managementas of 2026Not blocked https://www.epa.gov/stationary-sources-air-pollution/national-emission-standards-hazardous-air-pollutants-neshap-9as of 2026Not blocked

About epa.gov and the Great Firewall

Is epa.gov blocked in mainland China?

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

Plain HTTP and HTTPS differ here: http://epa.gov is not blocked, https://epa.gov is intermittent. 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

epa.gov is ranked #915 among the world's most-visited domains (Tranco).

Sites of similar popularity:change.org coupang.com paramountplus.com ys7.com

Most-blocked .gov domains Every tested URL under epa.gov

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