When submarine cables fail, will x.com still work?

Will not work

Domestic direct connections (O)
0

Domestic cloud services (?)
4

Foreign connections (X)
1

When submarine cables fail, can x.com still load normally?

Based on the latest test, under a submarine-cable outage scenario x.com may “not work.” If international connectivity is cut or blocked, the site may fail to load.

Why might x.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 x.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 x.com under cable outages assessed?

When opening the homepage of x.com, we observed 93 requests across 5 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.

Site location

  • Domestic / CloudAS13335 Cloudflare, Inc.172.66.0.227

Connection information

  • Domestic / CloudAS13335 Cloudflare, Inc.api.x.com
  • Foreign / CloudAS54113 Fastly, Inc.abs.twimg.com
  • Domestic / CloudAS15169 Google LLCaccounts.google.com
  • Domestic / CloudAS15169 Google LLCgoogle.com

Test environment

  • IP: 220.132.212.194
  • City: Banqiao
  • Region: Taipei
  • Country: TW
  • Organization: AS3462 Data Communication Business Group
  • DNS server: 168.95.1.1

View on GitHub

{
  "url": "https://x.com",
  "canonicalURL": "https://x.com",
  "httpStatus": 200,
  "timestamp": "2026-07-20T19:17:40.407Z",
  "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": 93,
  "uniqueDomains": 5,
  "test_results": {
    "domestic": {
      "cloud": 4,
      "direct": 0
    },
    "foreign": {
      "cloud": 1,
      "direct": 0
    }
  },
  "domainDetails": [
    {
      "originalUrl": "https://x.com/",
      "type": "document",
      "ipinfo": {
        "domain": "x.com",
        "ip": "172.66.0.227",
        "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": {
        "x-served-by": "t4_p, cache-nrt-rjtf7700108-NRT",
        "country": "tw",
        "detection_method": "laces",
        "laces": {
          "source": "laces api (cached)",
          "queried_ip": "172.66.0.227",
          "prefix": "172.66.0.0/24",
          "anycast": true,
          "confidence": "confident",
          "partial": false,
          "asns": [
            13335
          ],
          "date": "2026-07-17",
          "has_tw": true,
          "has_taipei": true,
          "site_count": 77,
          "location_count": 77,
          "tw_locations": [
            {
              "city": "Taipei",
              "country": "TW",
              "id": "TAI"
            }
          ]
        }
      }
    },
    {
      "originalUrl": "https://abs.twimg.com/responsive-web/client-web/Chirp-Regular.80fda27a.woff2",
      "type": "font",
      "ipinfo": {
        "domain": "abs.twimg.com",
        "ip": "199.232.112.159",
        "city": "Singapore",
        "region": "Singapore",
        "country": "SG",
        "loc": "1.2897,103.8501",
        "org": "AS54113 Fastly, Inc.",
        "timezone": "Asia/Singapore"
      },
      "category": "foreign/cloud",
      "cloud_provider": {
        "x-served-by": "cache-pdk-kfty8610069-PDK, cache-nrt-rjtt7900053-NRT, cache-sin-wsat1880052-SIN",
        "rtt": 64.595,
        "detection_method": "rtt",
        "laces": {
          "source": "laces api (cached)",
          "queried_ip": "199.232.112.159",
          "prefix": "199.232.112.0/24",
          "anycast": true,
          "confidence": "confident",
          "partial": false,
          "asns": [
            54113
          ],
          "date": "2026-07-17",
          "has_tw": false,
          "has_taipei": false,
          "site_count": 2,
          "location_count": 2
        }
      }
    },
    {
      "originalUrl": "https://accounts.google.com/gsi/client",
      "type": "script",
      "ipinfo": {
        "domain": "accounts.google.com",
        "ip": "108.177.97.84",
        "hostname": "tm-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": "142.250.198.78",
        "hostname": "lctsaa-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"
    },
    {
      "originalUrl": "https://api.x.com/1.1/hashflags.json",
      "type": "xhr",
      "ipinfo": {
        "domain": "api.x.com",
        "ip": "172.66.0.227",
        "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",
        "detection_method": "laces",
        "laces": {
          "source": "laces api (cached)",
          "queried_ip": "172.66.0.227",
          "prefix": "172.66.0.0/24",
          "anycast": true,
          "confidence": "confident",
          "partial": false,
          "asns": [
            13335
          ],
          "date": "2026-07-17",
          "has_tw": true,
          "has_taipei": true,
          "site_count": 77,
          "location_count": 77,
          "tw_locations": [
            {
              "city": "Taipei",
              "country": "TW",
              "id": "TAI"
            }
          ]
        }
      }
    }
  ]
}

Last tested: 7/21/2026, 3:17:40 AM (HTTP 200)