nasa.gov

Mixed

Results vary across nasa.gov: of 85 URLs tested, 8 are blocked, 22 are disrupted some of the time, 42 load normally and 13 have no conclusive recent result. The Great Firewall silently drops its packets so requests time out. 2,282 tests have been run under this domain since 2011-10-18, the most recent on 2026-08-05.

Timeout / silent drop 8

85URLs tested

8blocked

2,282tests all-time

2011first tested

3 d agolast tested

The site itself

http://nasa.govas of 2026Intermittent https://nasa.govIntermittent http://www.nasa.govas of 2026Intermittent https://www.nasa.govNot blocked

Pages and subdomains (76)

http://jpl.nasa.govas of 2026Not blocked http://pds.nasa.govas of 2026Not blocked http://apod.nasa.govas of 2026Not blocked https://api.nasa.govas of 2026Not blocked https://apod.nasa.govNot blocked https://ntrs.nasa.govas of 2026Not blocked https://eyes.nasa.govIntermittent https://blogs.nasa.govIntermittent http://www.jpl.nasa.govas of 2026Not blocked http://climate.nasa.govas of 2026Not blocked http://history.nasa.govas of 2026Intermittent http://ssd.jpl.nasa.govNot enough data https://images.nasa.govNot blocked http://mars.jpl.nasa.govas of 2026Not blocked http://dawn.jpl.nasa.govas of 2026Not blocked http://www2.jpl.nasa.govUnresolvable https://www.jpl.nasa.govas of 2026Not blocked https://ssd.jpl.nasa.govNot enough data https://climate.nasa.govas of 2026Intermittent https://science.nasa.govNot blocked http://space.jpl.nasa.govas of 2024Blocked http://cneos.jpl.nasa.govas of 2025Not blocked https://naif.jpl.nasa.govas of 2026Blocked http://saturn.jpl.nasa.govas of 2026Not blocked http://spaceplace.nasa.govas of 2024Blocked https://www-a.jpl.nasa.govUnresolvable https://www-b.jpl.nasa.govUnresolvable https://earthdata.nasa.govas of 2025Not blocked http://www.nasa.gov/goddardIntermittent http://solarsystem.nasa.govas of 2026Not blocked http://spaceflight.nasa.govas of 2026Intermittent http://jpl-www.jpl.nasa.govUnresolvable https://saterninfo.nasa.govUnresolvable http://voyager.jpl.nasa.govas of 2024Blocked https://podaac.jpl.nasa.govas of 2026Blocked https://saturn.jpl.nasa.govas of 2026Not blocked http://robotics.jpl.nasa.govas of 2024Blocked http://marstrek.jpl.nasa.govUnresolvable http://voyager.gsfc.nasa.govas of 2026Not blocked https://solarsystem.nasa.govas of 2025Intermittent https://spaceflight.nasa.govas of 2026Not blocked https://stemgateway.nasa.govNot blocked http://www-space.arc.nasa.govUnresolvable http://vestatrek.jpl.nasa.govUnresolvable http://deepspace.jpl.nasa.govas of 2025Blocked https://skyview.gsfc.nasa.govas of 2026Not blocked http://urs.earthdata.nasa.govNot blocked http://ladsweb.nascom.nasa.govas of 2026Not blocked http://spotthestation.nasa.govas of 2026Intermittent http://missionscience.nasa.govas of 2025Intermittent https://urs.earthdata.nasa.govNot blocked https://climate.nasa.gov/causesas of 2026Intermittent https://assets.science.nasa.govas of 2026Not blocked http://photojournal.jpl.nasa.govas of 2026Intermittent https://earthobservatory.nasa.govas of 2026Intermittent https://photojournal.jpl.nasa.govIntermittent https://eyes.nasa.gov/dsn/dsn.htmlas of 2026Not blocked http://astroventure.arc.nasa.gov/DAPNot enough data http://www.nasa.gov/multimedia/nasatvas of 2026Intermittent https://www.earthobservatory.nasa.govIntermittent http://mars.nasa.gov/allaboutmars/factsas of 2026Not blocked http://saturn.jpl.nasa.gov/science/moonsNot blocked https://marstrek.jpl.nasa.gov/index.htmlUnresolvable https://apod.nasa.gov/apod/astropix.htmlas of 2026Not blocked https://search.earthdata.nasa.gov/searchas of 2026Not blocked https://scienceandtechnology.jpl.nasa.govas of 2026Blocked http://astroventure.arc.nasa.gov/DAP/DAP.htmlNot enough data http://www.nasa.gov/multimedia/nasatv/index.htmlas of 2026Not blocked https://www.nasa.gov/multimedia/nasatv/index.htmlas of 2026Not blocked http://www.jpl.nasa.gov/missions/details.php?id=5918as of 2026Not blocked http://nssdc.gsfc.nasa.gov/planetary/lunar/apollo.htmlas of 2026Not blocked https://plus.nasa.gov/scheduled-video/u-s-spacewalk-92Intermittent http://www.jpl.nasa.gov/spaceimages/details.php?id=PIA17172Not blocked https://science.nasa.gov/sun/sunspots/?utm_source=chatgpt.comNot blocked http://www.nasa.gov/multimedia/imagegallery/image_feature_2425.htmlIntermittent http://www.nasa.gov/mission_pages/shuttle/sts1/gagarin_anniversary.htmlas of 2026Intermittent

Showing 80 of 85 tested URLs under this domain. See them all

About nasa.gov and the Great Firewall

Is nasa.gov blocked in mainland China?

Results vary across nasa.gov: of 85 URLs tested, 8 are blocked, 22 are disrupted some of the time, 42 load normally and 13 have no conclusive recent result. The Great Firewall silently drops its packets so requests time out. 2,282 tests have been run under this domain since 2011-10-18, the most recent on 2026-08-05.

How can I reach nasa.gov from mainland China?

A VPN or another circumvention tool routes the request outside mainland China, past the filtering that blocks nasa.gov. GreatFire runs GreatFire VPN; the Analyzer also tests the domains of many VPN and proxy providers, so you can check whether one is reachable before relying on it.

Elsewhere on the site

nasa.gov is ranked #373 among the world's most-visited domains (Tranco).

Sites of similar popularity:onelink.me selectel.ru calendly.com plesk.com

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

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