64.90.9.58 DNS Lookup

Carrier
DNS

Nationwide Speed Map

Nationwide Speed Map
  • >10s
  • 3s-10s
  • 1s-3s
  • 0.5s-1s
  • <=0.5s
100%
RegionFastestSlowestAverage
All Nodes------
China Telecom------
China Unicom------
China Mobile------
East China------
South China------
Central China------
North China------
Southwest------
Northwest------
Northeast------
HK/MO/TW------

DNS Resolution Stats

0

    Showing: 306/306

    NodeTargetTypeResolved ResultsRecordsDetailTimeDNS
    电信湖北十堰电信Home64.90.9.58A--0Timeout
    电信四川广安电信Home64.90.9.58A--0Timeout
    电信河北电信Home64.90.9.58A--0Timeout
    电信北京电信Home64.90.9.58A--0Timeout
    联通甘肃联通Home64.90.9.58A--0Timeout
    联通上海数据中心Home64.90.9.58A--0Timeout
    海外俄罗斯莫斯科Home64.90.9.58A--0Timeout
    海外柬埔寨金边Home64.90.9.58A--0Timeout
    海外迪拜Home64.90.9.58A--0Timeout
    电信电信青海Home64.90.9.58A--0Timeout
    电信宿迁电信Home64.90.9.58A--0Timeout
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    DNS Test Findings for 64.90.9.58

    Tested
    Oct 15, 2026, 9:12 PM
    Completed probes
    306/306
    DNS response probes
    0 (0%)
    Average DNS lookup time
    --

    This DNS lookup ran on 2026-10-15 13:10 UTC. Only 20 of 306 nodes obtained a valid DNS response, giving a 6.5% DNS response rate, far below the 99% threshold and a critical anomaly. Responding lookups showed a 3 ms median DNS lookup time, 1

    64.90.9.58 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 (%)

    0%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: 0%0%TelecomUnicom: 0%0%UnicomOverseas: 0%0%Overseas

    P50 DNS lookup time

    DNS lookup time (ms)

    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.050100Telecom: ----TelecomUnicom: ----UnicomOverseas: ----Overseas
    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

    • The overall DNS response rate was 6.5% (20 of 306 nodes); 286 nodes returned no valid DNS response during this observation window, a critical anomaly.
    • Among the 20 responding lookups, DNS lookup time was 3 ms median, 11 ms P90 and 25 ms P95, so resolver response timing itself showed no clear outlier.
    • Response rates by carrier were telecom 6.5%, unicom 7.9%, mobile 6.7% and overseas 3.1%; all were low, and the spread alone does not support attributing the issue to one carrier.
    • Only 2 unique response IPs were observed, which describes answer diversity in this run only and does not establish resolution correctness or propagation state.

    Improvement recommendations

    • The DNS response rate is 0%, below the 99% review threshold. Retest the unanswered probes and verify the authoritative DNS service, query type, and record only if failures persist.

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