openai.com
Mixed
Results vary across openai.com: of 38 URLs tested, 13 are blocked, 9 are disrupted some of the time and 16 load normally. The Great Firewall silently drops its packets so requests time out, breaks its TLS handshake and poisons its DNS. 666 tests have been run under this domain since 2022-12-10, 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://openai.comas of 2026Not blockedhttps://openai.comIntermittenthttp://www.openai.comas of 2026Intermittenthttps://www.openai.comBlockedPages and subdomains (34)
http://OpenAI.com/chatgptas of 2026Intermittenthttps://openai.com/blog/chatgptIntermittenthttps://openai.com/blog/chatgpt/Intermittenthttps://openai.com/research/gpt-4as of 2026Not blockedhttps://openai.com/index/dall-e-3/Not blockedhttps://openai.com/index/dall-e-2/Not blockedhttps://openai.com/product/dall-e-2as of 2026Not blockedhttps://openai.com/zh-Hant/index/chatgptNot blockedhttps://openai.com/form/life-sciences-accessIntermittenthttps://openai.com/blog/adversarial-example-research/as of 2026Not blockedhttps://openai.com/index/strengthening-societal-resilience-with-rosalind-biodefenseIntermittenthttp://api.openai.comas of 2026Blockedhttp://chat.openai.comas of 2026Blockedhttps://api.openai.comBlockedhttp://auth.openai.comas of 2026Not blockedhttps://chat.openai.comas of 2026Blockedhttp://auth0.openai.comas of 2026Blockedhttp://platform.openai.comIntermittenthttps://platform.openai.comas of 2026Not blockedhttp://Chat.openai.com/chatBlockedhttps://cookbook.openai.comas of 2026Not blockedhttps://chat.openai.com/chatBlockedhttps://chat.openai.com/auth/loginas of 2026Blockedhttps://chat.openai.com?model=gpt-4as of 2026Blockedhttps://chat.openai.com/cdn-cgi/traceBlockedhttps://auth.openai.com/cdn-cgi/traceNot blockedhttps://api.openai.com/v1/chat/completionsas of 2026Blockedhttps://auth0.openai.com/u/login/identifieras of 2026Blockedhttps://platform.openai.com/docs/introductionNot blockedhttps://deploymentsafety.openai.com/gpt-rosalind-5-5Not blockedhttps://platform.openai.com/docs/guides/text?api-mode=responsesas of 2026Not blockedhttps://help.openai.com/en/articles/7947663-chatgpt-supported-countriesas of 2026Not blockedhttps://cdn.openai.com/business-guides-and-resources/identifying-and-scaling-ai-use-cases.pdfas of 2026Intermittenthttps://images.openai.com/blob/9c95036b-c2f5-4af8-a9c4-ed6c411f77e4/chatgpt-can-now-see-hear-and-speak-alt.jpgNot blocked
About openai.com and the Great Firewall
Results vary across openai.com: of 38 URLs tested, 13 are blocked, 9 are disrupted some of the time and 16 load normally. The Great Firewall silently drops its packets so requests time out, breaks its TLS handshake and poisons its DNS. 666 tests have been run under this domain since 2022-12-10, the most recent on 2026-07-30.
Plain HTTP and HTTPS differ here: http://openai.com is not blocked, https://openai.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 openai.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
openai.com is ranked #163 among the world's most-visited domains (Tranco).
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Each URL's status is its verdict over the last 90 days, the same one its own page headlines.