Domestic direct connections (O)
0
Domestic cloud services (?)
3
Foreign connections (X)
1
When submarine cables fail, can chatgpt.com still load normally?
Based on the latest test, under a submarine-cable outage scenario chatgpt.com may “not work.” If international connectivity is cut or blocked, the site may fail to load.
Why might chatgpt.com “not work” when submarine cables fail?
During testing, when the homepage loaded we found that some content or resources had to be fetched from outside the country. Those resources usually load fine, but when cables are cut or traffic is severely congested those connections can fail—and the site may break along with them.
Does this mean chatgpt.com will definitely be unavailable during severe cable congestion?
Not necessarily. This result is inferred from resource dependencies observed while loading the homepage. It reflects higher risk—not a guarantee that every page or every feature would fail completely.
How is resilience for chatgpt.com under cable outages assessed?
When opening the homepage of chatgpt.com, we observed 158 requests across 4 domains.
If any involve connections abroad, the outcome is classified as “Will not work.” If there are no foreign connections but there is reliance on in-country nodes of multinational cloud services, the outcome is “Uncertain.” If connections are only domestic aside from that international-cloud pattern, the outcome is “May work.”
For detailed rules and the full workflow, see the research methodology and overall report.
{
"url": "https://chatgpt.com",
"canonicalURL": "https://chatgpt.com/",
"httpStatus": 200,
"timestamp": "2026-07-20T19:17:40.477Z",
"testParameters": {
"customDNS": "168.95.1.1",
"useAdblock": true,
"adblockUrls": [
"https://filter.futa.gg/hosts_abp.txt",
"https://raw.githubusercontent.com/AdguardTeam/FiltersRegistry/master/filters/filter_15_DnsFilter/filter.txt"
],
"useCache": true,
"hasIPinfoToken": true
},
"testingEnvironment": {
"ip": "220.132.212.194",
"hostname": "220-132-212-194.hinet-ip.hinet.net",
"city": "Banqiao",
"region": "Taipei",
"country": "TW",
"loc": "25.0143,121.4672",
"org": "AS3462 Data Communication Business Group",
"timezone": "Asia/Taipei",
"source": "ipinfo json api (direct)",
"dnsServer": "168.95.1.1"
},
"requestCount": 158,
"uniqueDomains": 4,
"test_results": {
"domestic": {
"cloud": 3,
"direct": 0
},
"foreign": {
"cloud": 1,
"direct": 0
}
},
"domainDetails": [
{
"originalUrl": "https://chatgpt.com/",
"type": "document",
"ipinfo": {
"domain": "chatgpt.com",
"ip": "104.18.32.47",
"city": "San Francisco",
"region": "California",
"country": "US",
"loc": "37.7621,-122.3971",
"org": "AS13335 Cloudflare, Inc.",
"timezone": "America/Los_Angeles"
},
"category": "domestic/cloud",
"cloud_provider": {
"country": "tw",
"cf-ray": "a1e44e5b5fb7a33d-TPE",
"detection_method": "header"
}
},
{
"originalUrl": "https://cdn.openai.com/common/fonts/openai-sans/v4/OpenAISans-Semibold.woff2",
"type": "font",
"ipinfo": {
"domain": "cdn.openai.com",
"ip": "150.171.110.65",
"city": "Hong Kong",
"region": "Hong Kong",
"country": "HK",
"loc": "22.2783,114.1747",
"org": "AS8075 Microsoft Corporation",
"timezone": "Asia/Hong_Kong"
},
"category": "foreign/cloud",
"cloud_provider": {
"x-azure-ref": "20260720T191727Z-16455cd79bbh6kjthC1HK19cun00000002300000000002yf",
"rtt": null,
"detection_method": "rtt",
"rtt_error": "timeout",
"laces": {
"source": "laces api (cached)",
"queried_ip": "150.171.110.65",
"prefix": "150.171.110.0/24",
"anycast": false,
"confidence": "not_detected",
"asns": [],
"date": "2026-07-17",
"has_tw": false,
"has_taipei": false,
"site_count": 0,
"location_count": 0
}
}
},
{
"originalUrl": "https://accounts.google.com/gsi/client",
"type": "script",
"ipinfo": {
"domain": "accounts.google.com",
"ip": "64.233.189.84",
"hostname": "tl-in-f84.1e100.net",
"city": "Taichung",
"region": "Taiwan",
"country": "TW",
"loc": "24.1469,120.6839",
"org": "AS15169 Google LLC",
"timezone": "Asia/Taipei"
},
"category": "domestic/cloud"
},
{
"originalUrl": "https://google.com/.well-known/web-identity",
"type": "fedcm",
"ipinfo": {
"domain": "google.com",
"ip": "142.250.77.14",
"hostname": "nctsaa-ab-in-f14.1e100.net",
"city": "Banqiao",
"region": "Taipei",
"country": "TW",
"loc": "25.0143,121.4672",
"org": "AS15169 Google LLC",
"timezone": "Asia/Taipei"
},
"category": "domestic/cloud"
}
]
}Last tested: 7/21/2026, 3:17:40 AM (HTTP 200)
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