edt2.guyue99.cc.cd DNS Lookup

Carrier
DNS

Nationwide Speed Map

Nationwide Speed Map
  • >10s
  • 3s-10s
  • 1s-3s
  • 0.5s-1s
  • <=0.5s
100%
RegionFastestSlowestAverage
All Nodes上海普陀电信 0.006s云南昆明移动 2.294s0.588s
China Telecom上海普陀电信 0.006s电信青海 2.271s0.466s
China Unicom上海数据中心 0.289s甘肃联通 1.873s0.694s
China Mobile内蒙古巴彦淖尔移动 0.011s云南昆明移动 2.294s0.718s
East China上海普陀电信 0.006s江苏宿迁电信 2.265s0.556s
South China广东佛山电信 0.244s广东韶关联通 0.788s0.486s
Central China河南三门峡电信 0.157s湖南岳阳电信 1.040s0.517s
North China内蒙古巴彦淖尔移动 0.011s内蒙古呼和浩特1移动 1.176s0.617s
Southwest云南昆明电信 0.321s云南昆明移动 2.294s0.713s
Northwest陕西西安1电信 0.341s电信青海 2.271s0.766s
Northeast辽宁铁岭电信 0.199s吉林梅河口联通 0.842s0.597s
HK/MO/TW台湾高雄 0.156s台湾台北 0.183s0.169s

DNS Resolution Stats

15

Showing: 318/318

NodeTargetTypeResolved ResultsRecordsDetailTimeDNS
电信天津电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2359ms223.5.5.5
电信上海徐汇电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2305ms8.8.8.8
电信上海奉贤电信edt2.guyue99.cc.cdA
183.192.65.101
19ms127.0.0.53
电信上海普陀电信edt2.guyue99.cc.cdA
183.192.65.101
16ms127.0.0.53
电信重庆黔江电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2342ms8.8.8.8
电信重庆江津电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2354ms127.0.0.53
电信重庆两江电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2357ms223.5.5.5
电信河北石家庄1电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2363ms8.8.8.8
电信河北邢台电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2356ms223.5.5.5
电信河北唐山电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2364ms223.5.5.5
电信河北石家庄电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2362ms223.5.5.5
电信河北电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2511ms114.114.114.114
电信河南三门峡电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2157ms222.88.88.88
电信河南郑州2电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2415ms119.29.29.29
电信河南商丘电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2406ms119.29.29.29
电信河南平顶山电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2417ms223.5.5.5
电信河南南阳电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2411ms223.5.5.5
电信河南郑州电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2546ms100.95.0.1
电信河南开封电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2418ms223.5.5.5
电信河南驻马店电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2353ms192.168.5.1
电信河南漯河电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2339ms222.85.85.85
电信云南昆明电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2321msfe80::5
电信云南昭通电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2740ms61.139.2.69
电信云南文山电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2345ms61.166.150.123
电信云南昆明1电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2566ms202.96.134.133
电信云南楚雄电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2329ms127.0.0.53
电信辽宁辽阳电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2399ms8.8.8.8
电信辽宁铁岭电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2199ms219.148.204.66
电信辽宁沈阳电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2388ms8.8.8.8
电信辽宁鞍山电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2426ms223.5.5.5
电信黑龙江鸡西电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2397ms112.100.100.100
电信湖南郴州电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2307ms8.8.8.8
电信湖南长沙电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2735ms100.95.0.1
电信湖南衡阳电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2303ms8.8.8.8
电信湖南邵阳1电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2370ms223.5.5.5
电信湖南株洲电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2310ms223.5.5.5
电信湖南长沙1电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2337msfe80::5
电信湖南岳阳电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
21040ms127.0.0.53
电信湖南邵阳电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2314ms127.0.0.53
电信安徽芜湖电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2494ms8.8.8.8
电信安徽池州电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2311ms127.0.0.53
电信安徽滁州电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2487ms223.5.5.5
电信安徽黄山电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
21413ms223.5.5.5
电信安徽安庆电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2486ms114.114.115.115
电信安徽淮南电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2291ms202.102.213.68
电信安徽合肥电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2291ms61.132.163.68
电信安徽马鞍山电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2357ms192.168.0.1
电信安徽合肥电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2494ms8.8.8.8
电信山东青岛电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
21436ms100.95.0.1
电信山东烟台电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2377ms119.29.29.29
电信山东枣庄电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2386ms223.5.5.5
电信山东济南电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2350ms119.29.29.29
电信山东龙口电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2353ms8.8.8.8
电信山东青岛电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2119ms223.5.5.5
电信新疆乌鲁木齐电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2636ms100.95.0.1
电信江苏苏州电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2453ms223.5.5.5
电信江苏宿迁电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
22265ms127.0.0.53
电信江苏盐城电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2426ms8.8.8.8
电信江苏泰州电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2300ms223.5.5.5
电信江苏连云港电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2435ms223.5.5.5
电信江苏徐州电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2433ms223.5.5.5
电信江苏无锡电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2525ms223.5.5.5
电信江苏盐城1电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2342ms127.0.0.53
电信江苏南通电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2432ms223.5.5.5
电信江苏南京电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2513ms8.8.8.8
电信浙江宁波电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2380ms127.0.0.53
电信浙江杭州电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2452ms100.95.0.1
电信浙江嘉兴电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2329ms223.6.6.6
电信浙江丽水电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2315ms223.5.5.5
电信浙江金华电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2357ms127.0.0.53
电信浙江绍兴电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2322ms114.114.115.115
电信浙江温州1电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2391ms61.153.177.196
电信浙江温州电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2328ms127.0.0.53
电信浙江衢州电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2343ms202.96.113.34
电信浙江衢州电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2351ms223.5.5.5
电信江西南昌电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2335ms127.0.0.53
电信江西吉安电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2353ms192.168.1.1
电信江西赣州电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2370ms119.29.29.29
电信湖北襄阳电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2527ms127.0.0.53
电信湖北十堰电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2518ms127.0.0.53
电信湖北武汉电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2338ms202.103.24.68
电信湖北十堰电信edt2.guyue99.cc.cdA--0Timeout--
电信广西贵港电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2311msfe80::1
电信广西柳州电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2328ms192.168.1.1
电信广西南宁电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2303ms202.103.224.68
电信广西南宁1电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2468ms100.95.0.1
电信广西玉林电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2304ms223.5.5.5
电信甘肃兰州电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2594ms8.8.8.8
电信甘肃庆阳电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
21178ms100.95.0.1
电信甘肃庆阳1电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2673ms127.0.0.53
电信甘肃平凉电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2387ms192.168.1.1
电信山西太原电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2520ms100.95.0.1
电信山西晋中1电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2312ms127.0.0.53
电信山西晋中2电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2546ms8.8.8.8
电信山西晋中电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2352ms192.168.1.1
电信内蒙古呼和浩特电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2696ms100.95.0.1
电信内蒙古巴彦淖尔电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2386ms223.5.5.5
电信内蒙古包头电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2410ms223.5.5.5
电信陕西西安1电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2341ms192.168.199.1
电信陕西渭南电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2663ms127.0.0.53
电信陕西西安电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2602ms127.0.0.53
电信吉林辽源电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2461ms119.29.29.29
电信吉林松原电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2361ms8.8.8.8
电信福建福州电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2287ms8.8.8.8
电信福建厦门电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2298ms223.5.5.5
电信福建漳州电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2289ms223.5.5.5
电信福建三明电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2284ms114.114.115.115
电信福建宁德电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2286ms223.5.5.5
电信福建泉州电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2299ms223.5.5.5
电信贵州贵阳电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2323ms8.8.8.8
电信贵州黔南电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2355ms192.168.31.1
电信贵州贵阳电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
22228ms114.114.114.114
电信广东广州电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2290ms100.125.0.250
电信广东揭阳电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2294ms223.5.5.5
电信广东佛山电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2244msfe80::1
电信广东广州电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2320ms127.0.0.53
电信广东韶关电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2558ms223.5.5.5
电信广东湛江电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2288ms8.8.8.8
电信青海西宁电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2392ms8.8.8.8
电信青海海东电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2391ms202.100.128.68
电信青海西宁电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2611ms202.100.128.68
电信电信青海edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
22271ms127.0.0.53
电信西藏拉萨1电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2367ms8.8.8.8
电信西藏拉萨电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
21044ms127.0.0.53
电信四川绵阳电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2352ms223.5.5.5
电信四川成都电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2343ms119.29.29.29
电信四川自贡电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2349ms61.139.2.69
电信四川广安电信edt2.guyue99.cc.cdA--0Timeout--
电信海南三亚电信edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2462ms8.8.8.8
电信海南海口电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2471ms127.0.0.53
电信北京电信edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2830ms127.0.0.53
联通北京联通edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
21135ms127.0.0.53
联通天津联通edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2572ms180.76.76.76
联通上海联通edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2300ms8.8.8.8
联通上海数据中心edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2289ms127.0.0.53
联通重庆联通edt2.guyue99.cc.cdA
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172.66.47.162172.66.44.94
2702ms119.29.29.29
移动四川乐山移动edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2629ms211.137.96.205
移动四川广安移动edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
21016ms127.0.0.53
移动宁夏银川1移动edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2659ms127.0.0.53
移动宁夏中卫移动edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2626ms192.168.1.1
海外台湾高雄edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2156ms127.0.0.53
海外台湾台北edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2183ms8.8.8.8
海外香港沙田edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2167ms8.8.8.8
海外香港九龙edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2166ms1.1.1.1
海外澳门edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2172ms1.1.1.1
海外卡塔尔edt2.guyue99.cc.cdA
188.114.96.6188.114.97.6
2387ms127.0.0.53
海外沙特阿拉伯edt2.guyue99.cc.cdA
188.114.96.6188.114.97.6
2375ms127.0.0.53
海外印度edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2243ms127.0.0.53
海外印度尼西亚edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2206ms127.0.0.53
海外新加坡edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2209ms127.0.0.53
海外日本东京edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2135ms1.1.1.1
海外以色列edt2.guyue99.cc.cdA
188.114.96.6188.114.97.6
2277ms127.0.0.53
海外韩国edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2285ms127.0.0.53
海外越南edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2180ms8.8.8.8
海外马来西亚edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2204ms1.1.1.1
海外菲律宾edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2186ms1.1.1.1
海外泰国edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2257ms127.0.0.53
海外韩国edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2288ms169.254.169.254
海外菲律宾edt2.guyue99.cc.cdA
172.66.44.94172.66.47.162
2171ms192.168.31.1
海外英国edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2145ms127.0.0.53
海外芬兰edt2.guyue99.cc.cdA
188.114.96.1188.114.97.1
2194ms127.0.0.53
海外西班牙edt2.guyue99.cc.cdA
188.114.96.5188.114.97.5
2149ms127.0.0.53
海外德国edt2.guyue99.cc.cdA
188.114.96.3188.114.97.3
2160ms127.0.0.53
海外法国edt2.guyue99.cc.cdA
188.114.96.2188.114.97.2
2156ms127.0.0.53
海外波兰edt2.guyue99.cc.cdA
188.114.97.11188.114.96.11
2170ms127.0.0.53
海外美国芝加哥‌edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
214ms8.8.8.8
海外美国华盛顿edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
24ms8.8.8.8
海外美国洛杉矶edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
259ms8.8.8.8
海外巴西edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2174ms127.0.0.53
海外南非edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2291ms127.0.0.53
海外澳大利亚edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2195ms127.0.0.53
海外俄罗斯莫斯科edt2.guyue99.cc.cdA
188.114.97.1188.114.96.1
2217ms8.8.8.8
海外柬埔寨金边edt2.guyue99.cc.cdA
172.66.47.162172.66.44.94
2223ms8.8.8.8
海外迪拜edt2.guyue99.cc.cdA
188.114.96.6188.114.97.6
2402ms38.54.8.230

DNS Test Findings for edt2.guyue99.cc.cd

Tested
Sep 20, 2026, 12:10 PM
Completed probes
318/318
DNS response probes
315 (99.1%)
Average DNS lookup time
553 ms

This DNS lookup on 2026-09-20 showed a 99.1% DNS response rate, with 315 of 318 nodes returning a valid result and 3 not doing so. Median DNS lookup time was 533 ms and P95 was 1041 ms, with overseas notably faster.

edt2.guyue99.cc.cd DNS lookup performance by network

DNS response rate counts probes with a DNS response and measured lookup time. P50 is the time at or below which half of responding lookups completed; a response need not contain an address and does not establish propagation or poisoning.

DNS response rate

DNS response rate (%)

100%Highest rate
DNS response rateDNS response rate counts probes with a DNS response and measured lookup time. P50 is the time at or below which half of responding lookups completed; a response need not contain an address and does not establish propagation or poisoning.050100Telecom: 98.5%98.5%TelecomUnicom: 98.7%98.7%UnicomMobile: 100%100%MobileOverseas: 100%100%Overseas

P50 DNS lookup time

DNS lookup time (ms)

185 msLowest P50
P50 DNS lookup timeDNS response rate counts probes with a DNS response and measured lookup time. P50 is the time at or below which half of responding lookups completed; a response need not contain an address and does not establish propagation or poisoning.0375750Telecom: 363 ms363 msTelecomUnicom: 640 ms640 msUnicomMobile: 631 ms631 msMobileOverseas: 185 ms185 msOverseas
DNS response rate counts probes with a DNS response and measured lookup time. P50 is the time at or below which half of responding lookups completed; a response need not contain an address and does not establish propagation or poisoning.

Key findings

  • Overall DNS response rate was 99.1%; 315 of 318 nodes responded, while 3 did not obtain a valid result as defined for this test.
  • Median DNS lookup time was 533 ms, P90 was 815 ms and P95 was 1041 ms, placing the tail above the 1000 ms threshold.
  • Unicom median was 640 ms and mobile 631 ms, both above telecom at 363 ms; overseas median was 185 ms, a 455 ms gap versus Unicom.
  • Fifteen distinct resolved addresses were observed, which describes answer diversity in this sample only.

Improvement recommendations

  • P50 reached 533 ms, above the 200 ms review threshold. Repeat the same probes at a different time and investigate the relevant resolver service and query path only if the elevated median persists.
  • P95 reached 1041 ms, above the 1000 ms review threshold. Retest the slow probes and compare their routes or service stages before changing production configuration.
  • China Unicom has a P50 latency gap of 455 ms versus overseas. Compare routes from both groups and verify that the gap narrows after any routing change.

These results describe this distributed test only and do not establish long-term availability, security, or a root cause.