github.io

Mixed

Results vary across github.io: of 910 URLs tested, 144 are blocked, 411 are disrupted some of the time, 354 load normally and 1 has no conclusive recent result. The Great Firewall silently drops its packets so requests time out, poisons its DNS and breaks its TLS handshake. 17,284 tests have been run under this domain since 2013-08-01, the most recent on 2026-08-19.

Timeout / silent drop 109 DNS poisoning 102 TLS handshake failure 60 Connection reset 33 Connection failed 16 Empty response 1

910URLs tested

144blocked

17,284tests all-time

2013first tested

1 h agolast tested

The site itself

http://github.ioIntermittent https://github.ioIntermittent http://www.github.ioNot blocked https://www.github.ioIntermittent

Pages and subdomains (76)

http://try.github.ioNot blocked http://rp8.github.ioas of 2026Blocked http://ccp.github.ioIntermittent http://tw93.github.ioNot blocked http://zhwa.github.ioIntermittent https://w3c.github.ioNot blocked https://rp8.github.ioBlocked https://git.github.ioIntermittent http://ipfs.github.ioas of 2026Intermittent http://33kk.github.ioIntermittent http://xtls.github.ioIntermittent http://pages.github.ioNot blocked http://artsy.github.ioas of 2026Blocked http://acnya.github.ioNot blocked http://sdrap.github.ioIntermittent http://imweb.github.ioNot blocked http://yoxem.github.ioIntermittent http://fanyu.github.ioIntermittent https://mz1d.github.ioIntermittent http://byeah.github.ioIntermittent https://r12a.github.ioNot blocked http://binux.github.ioNot blocked http://szzd1.github.ioas of 2026Blocked https://jyg3.github.ioNot blocked http://xlhdh.github.ioNot blocked https://sdgo.github.ioNot blocked https://ipfs.github.ioIntermittent http://nigga.github.ioIntermittent https://33kk.github.ioas of 2026Blocked http://cs144.github.ioas of 2026Blocked http://4xh.github.io/4Intermittent http://4xh.github.io/2Intermittent http://4xh.github.io/3Not blocked http://4xh.github.io/1Intermittent http://4xh.github.io/5Not blocked http://8xh.github.io/3Not blocked http://8xh.github.io/5Intermittent http://8xh.github.io/4Intermittent http://8xh.github.io/2Intermittent https://v2sx.github.ioNot blocked https://xtls.github.ioIntermittent https://yfoz.github.ioIntermittent http://specy.github.ioNot blocked https://yfaz.github.ioIntermittent http://new-t.github.ioIntermittent http://lhcfl.github.ioNot blocked https://g8hh.github.ioNot blocked http://mabbs.github.ioNot blocked https://kan5.github.ioNot blocked http://iznait.github.ioas of 2026Blocked http://biaocy.github.ioNot blocked http://as1ndu.github.ioas of 2026Not blocked http://alxryk.github.ioNot blocked https://jetyu.github.ioNot blocked https://jvbao.github.ioIntermittent https://orcid.github.ioNot blocked https://arlob.github.ioNot blocked https://haoel.github.ioas of 2026Blocked http://ecomfe.github.ioIntermittent http://nvidia.github.ioIntermittent https://szzd1.github.ioas of 2026Blocked http://dukewf.github.ioas of 2026Intermittent https://xu291.github.ioBlocked http://ixlhfh.github.ioas of 2026Intermittent https://xlhdh.github.ioIntermittent http://rbrott.github.ioIntermittent https://ocftw.github.ioIntermittent http://zjcqoo.github.ioas of 2026Blocked http://apkipa.github.ioNot blocked https://aria2.github.ioIntermittent https://pages.github.ioNot blocked https://cetic.github.ioNot blocked https://grugq.github.ioIntermittent https://hello.github.ioIntermittent https://ttcps.github.ioIntermittent http://aquexu.github.ioas of 2026Blocked

Showing 80 of 910 tested URLs under this domain. See them all

About github.io and the Great Firewall

Is github.io blocked in mainland China?

Results vary across github.io: of 910 URLs tested, 144 are blocked, 411 are disrupted some of the time, 354 load normally and 1 has no conclusive recent result. The Great Firewall silently drops its packets so requests time out, poisons its DNS and breaks its TLS handshake. 17,284 tests have been run under this domain since 2013-08-01, the most recent on 2026-08-19.

How can I reach github.io from mainland China?

A VPN or another circumvention tool routes the request outside mainland China, past the filtering that blocks github.io. 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

github.io is ranked #119 among the world's most-visited domains (Tranco).

Sites of similar popularity:vk.com discord.gg criteo.com snapchat.com

Most-blocked .io domains Every tested URL under github.io

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