cloudflare.com
Mixed
Results vary across cloudflare.com: of 245 URLs tested, 3 are blocked, 1 is redirected to a server inside mainland China, 12 are disrupted some of the time, 225 load normally and 4 have no conclusive recent result. The Great Firewall breaks its TLS handshake, redirects it to a server in mainland China and silently drops its packets so requests time out. 6,151 tests have been run under this domain since 2012-03-01, the most recent on 2026-07-30.
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.
The site itself
http://cloudflare.comNot blockedhttps://cloudflare.comIntermittenthttp://cloudflare.com:8443Not blockedhttp://www.cloudflare.comas of 2026Not blockedhttps://www.cloudflare.comNot blockedhttp://www.cloudflare.com:8443Not blockedPages and subdomains (74)
http://cloudflare.com/cdn-cgi/traceNot blockedhttps://cloudflare.com/cdn-cgi/traceNot blockedhttp://cloudflare.com:8443/cdn-cgi/traceNot blockedhttp://cloudflare.com/zh-cn/what-is-cloudflareas of 2025Redirected inside mainland Chinahttp://cn.cloudflare.comNot blockedhttp://ns.cloudflare.comas of 2025Not blockedhttp://cp.cloudflare.comas of 2026Not blockedhttps://cn.cloudflare.comas of 2026Not blockedhttp://amp.cloudflare.comNot blockedhttp://api.cloudflare.comas of 2024Intermittenthttps://ct.cloudflare.comas of 2026Not blockedhttp://dns.cloudflare.comas of 2026Intermittenthttps://cp.cloudflare.comas of 2026Not blockedhttp://ajax.cloudflare.comNot enough datahttps://dns.cloudflare.comas of 2026Blockedhttp://time.cloudflare.comas of 2024Intermittenthttps://api.cloudflare.comas of 2026Not blockedhttp://dash.cloudflare.comNot blockedhttp://turn.cloudflare.comNot blockedhttp://cdnjs.cloudflare.comas of 2025Not blockedhttps://ajax.cloudflare.comas of 2024Not blockedhttps://dash.cloudflare.comNot blockedhttps://blog.cloudflare.comas of 2026Not blockedhttps://time.cloudflare.comas of 2024Blockedhttp://speed.cloudflare.comas of 2026Not blockedhttps://stun.cloudflare.comNot blockedhttp://uma.ns.cloudflare.comNot blockedhttps://cdnjs.cloudflare.comNot blockedhttps://radar.cloudflare.comNot blockedhttps://speed.cloudflare.comas of 2026Not blockedhttps://pages.cloudflare.comNot blockedhttps://a.nel.cloudflare.comNot blockedhttp://dina.ns.cloudflare.comas of 2026Not blockedhttp://elle.ns.cloudflare.comNot blockedhttp://leah.ns.cloudflare.comNot blockedhttp://norm.ns.cloudflare.comIntermittenthttp://etta.ns.cloudflare.comNot blockedhttp://dane.ns.cloudflare.comNot blockedhttp://dell.ns.cloudflare.comas of 2026Not blockedhttp://lily.ns.cloudflare.comNot blockedhttp://burt.ns.cloudflare.comas of 2026Not blockedhttp://karl.ns.cloudflare.comas of 2026Intermittenthttps://crypto.cloudflare.comNot blockedhttp://domains.cloudflare.comNot blockedhttp://sima.ns.cloudflare.comas of 2026Not blockedhttp://amber.ns.cloudflare.comas of 2026Not blockedhttps://www.cloudflare.com/dnsas of 2026Not blockedhttps://malcolm.cloudflare.comNot blockedhttps://workers.cloudflare.comas of 2026Not blockedhttp://h3.speed.cloudflare.comas of 2026Not blockedhttps://partners.cloudflare.comNot blockedhttps://www.cloudflare.com/warpIntermittenthttps://one.dash.cloudflare.comNot blockedhttps://h3.speed.cloudflare.comas of 2026Not blockedhttps://research.cloudflare.comas of 2026Not blockedhttps://rtc.live.cloudflare.comNot blockedhttps://www.cloudflare.com/zh-cnas of 2026Intermittenthttps://www.cloudflare.com/en-gbas of 2026Not blockedhttp://challenges.cloudflare.comNot blockedhttp://valid.rpki.cloudflare.comas of 2026Not blockedhttps://community.cloudflare.comNot blockedhttps://www.cloudflare.com/drop/Not blockedhttps://valid.rpki.cloudflare.comas of 2026Not blockedhttps://dash.cloudflare.com/loginNot blockedhttps://developers.cloudflare.comNot blockedhttps://www.cloudflare.com/ja-jp/as of 2026Not blockedhttps://www.cloudflare.com/zh-tw/as of 2026Intermittenthttps://challenges.cloudflare.comNot blockedhttps://www.cloudflare.com/en-ca/Not blockedhttps://www.cloudflare.com/sign-upas of 2026Not blockedhttps://www.cloudflare.com/a/loginas of 2026Not blockedhttp://invalid.rpki.cloudflare.comNot enough datahttps://www.cloudflare.com/1.1.1.1as of 2026Not blockedhttps://invalid.rpki.cloudflare.comas of 2025Not blockedShowing 80 of 245 tested URLs under this domain. See them all
About cloudflare.com and the Great Firewall
Results vary across cloudflare.com: of 245 URLs tested, 3 are blocked, 1 is redirected to a server inside mainland China, 12 are disrupted some of the time, 225 load normally and 4 have no conclusive recent result. The Great Firewall breaks its TLS handshake, redirects it to a server in mainland China and silently drops its packets so requests time out. 6,151 tests have been run under this domain since 2012-03-01, the most recent on 2026-07-30.
Plain HTTP and HTTPS differ here: http://cloudflare.com is not blocked, https://cloudflare.com 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.
A VPN or another circumvention tool routes the request outside mainland China, past the filtering that blocks cloudflare.com. 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
cloudflare.com is ranked #3 among the world's most-visited domains (Tranco).
Sites of similar popularity:google.comfacebook.commicrosoft.comyoutube.com
Most-blocked .com domainsEvery tested URL under cloudflare.com
Each URL's status is its verdict over the last 90 days, the same one its own page headlines.