{
  "performance": {
    "concurrent_requests": 100,
    "request_timeout": 3.0,
    "max_retries": 2,
    "batch_size": 1000,
    "worker_threads": 4
  },
  "cdnProviders": {
    "edgeone": {
      "name": "EdgeOne (Tencent Cloud)",
      "enabled": true,
      "test_domain": "test10000.ix.je"
    },
    "esa": {
      "name": "ESA (Alibaba Cloud)",
      "enabled": true,
      "test_domain": "test10000.ix.je"
    },
    "fastly": {
      "name": "Fastly",
      "enabled": true,
      "test_domain": "test10000.ix.je"
    },
    "cloudflare": {
      "name": "Cloudflare",
      "enabled": true,
      "test_domain": "test10000.fstring.me"
    }
  },
  "testing": {
    "protocols": ["https", "http"],
    "user_agent": "BestCDN-Tester/1.0",
    "follow_redirects": false,
    "validate_ssl": false
  },
  "output": {
    "format": "json",
    "save_results": true,
    "output_file": "results/accessible_ips.json",
    "log_level": "info"
  }
}