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ucu520.top通过本站DNS查询可进行实时DNS检测,能够迅速检测出在不同地区以及不同网络下对域名解析的结果,检测DNS解析是否遭受污染,查看域名污染在全国的分布状况,还能对域名的A记录、CNAME记录、MX记录、NS记录予以查询。
DNS查询结果ucu520.top2026-10-12 01:49:29
预估消耗 0 检测点,实际消耗以【检测点账单】为准
30

检测节点

响应时间分布 域名污染分布

污染比例:0%

登录51CESU,立即查看域名污染全国分布情况
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概览 被污染 (0) 状态码4XX (0) 客户端请求错误(请求的资源不存在、权限不足等) 状态码5XX (0) 服务器故障,处理请求时内部出错无法访问 响应超时 (2)
区域/运营商 响应最快 响应最慢 平均响应
全部 陕西西安电信86ms 湖南长沙移动1013ms 220.75ms
电信 陕西西安电信86ms 湖南长沙电信140ms 115ms
移动 天津移动98ms 湖南长沙移动1013ms 295.8ms
联通 湖南衡阳联通189ms 广西梧州联通267ms 230.3ms
华东 上海电信113ms 浙江温州联通232ms 191.833ms
华北 山西长治电信87ms 内蒙古阿拉善盟移动245ms 148.167ms
华南 广西南宁移动227ms 广西梧州联通267ms 244ms
华中 湖南长沙电信140ms 湖南长沙移动1013ms 353.8ms
西北 陕西西安电信86ms 陕西西安联通256ms 206.75ms
西南 贵州黔南布依族苗族自治州电信136ms 云南昆明联通234ms 192ms
东北 吉林长春移动237ms 吉林长春移动237ms 237ms
解析占比
全部 电信 移动 联通 被污染
104.21.47.205
172.67.172.118
104.21.47.205
172.67.172.118
DNS查询详情
全部
响应超时 被污染
节点数:/
检测点
运营商 检测节点

解析时间

解析内容 操作
电信 安徽合肥
128ms 104.21.47.205[美国Cloudflare, Inc.]
172.67.172.118[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	104.21.47.205
ucu520.top.	300	IN	A	172.67.172.118

;; Query time: 128 msec
;; SERVER: 223.5.5.5#53(223.5.5.5)
;; WHEN: Sun Oct 11 17:48:05 UTC 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
电信 贵州黔南布依族苗族自治州
136ms 104.21.47.205[美国Cloudflare, Inc.]
172.67.172.118[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	104.21.47.205
ucu520.top.	300	IN	A	172.67.172.118

;; Query time: 136 msec
;; SERVER: 192.168.110.1#53(192.168.110.1)
;; WHEN: Mon Oct 12 01:48:05 CST 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
电信 河北唐山
101ms 172.67.172.118[美国Cloudflare, Inc.]
104.21.47.205[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	172.67.172.118
ucu520.top.	300	IN	A	104.21.47.205

;; Query time: 101 msec
;; SERVER: 223.5.5.5#53(223.5.5.5)
;; WHEN: Mon Oct 12 01:48:05 CST 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
电信 湖南长沙
140ms 104.21.47.205[美国Cloudflare, Inc.]
172.67.172.118[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	104.21.47.205
ucu520.top.	300	IN	A	172.67.172.118

;; Query time: 140 msec
;; SERVER: 223.5.5.5#53(223.5.5.5)
;; WHEN: Sun Oct 11 17:48:05 UTC 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
电信 内蒙古包头
129ms 104.21.47.205[美国Cloudflare, Inc.]
172.67.172.118[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	606	IN	A	104.21.47.205
ucu520.top.	606	IN	A	172.67.172.118

;; Query time: 129 msec
;; SERVER: 114.114.114.114#53(114.114.114.114)
;; WHEN: Sun Oct 11 17:48:10 UTC 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
电信 山西长治
87ms 104.21.47.205[美国Cloudflare, Inc.]
172.67.172.118[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	104.21.47.205
ucu520.top.	300	IN	A	172.67.172.118

;; Query time: 87 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Sun Oct 11 17:48:05 UTC 2026
;; MSG SIZE  rcvd: 735
详情
详情 HTTP PING DNS
电信 陕西西安
86ms 104.21.47.205[美国Cloudflare, Inc.]
172.67.172.118[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	104.21.47.205
ucu520.top.	300	IN	A	172.67.172.118

;; Query time: 86 msec
;; SERVER: 223.5.5.5#53(223.5.5.5)
;; WHEN: Sun Oct 11 17:48:05 UTC 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
电信 上海
113ms 172.67.172.118[美国Cloudflare, Inc.]
104.21.47.205[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	606	IN	A	172.67.172.118
ucu520.top.	606	IN	A	104.21.47.205

;; Query time: 113 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon Oct 12 01:48:05 CST 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
移动 海南
238ms 104.21.47.205[美国Cloudflare, Inc.]
172.67.172.118[美国Cloudflare, Inc.]
ucu520.top.		300	IN	A	104.21.47.205
ucu520.top.		300	IN	A	172.67.172.118
;; Query time: 238 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Sun Oct 11 17:48:05 UTC 2026
;; MSG SIZE  rcvd: 395

详情
详情 HTTP PING DNS
移动 广西南宁
227ms 172.67.172.118[美国Cloudflare, Inc.]
104.21.47.205[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	172.67.172.118
ucu520.top.	300	IN	A	104.21.47.205

;; Query time: 227 msec
;; SERVER: 211.138.240.100#53(211.138.240.100)
;; WHEN: Mon Oct 12 01:48:05 CST 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
移动 河北唐山
229ms 172.67.172.118[美国Cloudflare, Inc.]
104.21.47.205[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	172.67.172.118
ucu520.top.	300	IN	A	104.21.47.205

;; Query time: 229 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon Oct 12 01:48:05 CST 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
移动 湖北鄂州
200ms 172.67.172.118[美国Cloudflare, Inc.]
104.21.47.205[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	172.67.172.118
ucu520.top.	300	IN	A	104.21.47.205

;; Query time: 200 msec
;; SERVER: 211.137.58.20#53(211.137.58.20)
;; WHEN: Mon Oct 12 01:48:05 CST 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
移动 湖南长沙
1013ms 172.67.172.118[美国Cloudflare, Inc.]
104.21.47.205[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	172.67.172.118
ucu520.top.	300	IN	A	104.21.47.205

;; Query time: 1013 msec
;; SERVER: 211.142.211.124#53(211.142.211.124)
;; WHEN: Mon Oct 12 01:48:06 CST 2026
;; MSG SIZE  rcvd: 91
详情
详情 HTTP PING DNS
移动 吉林长春
237ms 104.21.47.205[美国Cloudflare, Inc.]
172.67.172.118[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	104.21.47.205
ucu520.top.	300	IN	A	172.67.172.118

;; Query time: 237 msec
;; SERVER: 211.141.16.99#53(211.141.16.99)
;; WHEN: Mon Oct 12 01:48:05 CST 2026
;; MSG SIZE  rcvd: 735
详情
详情 HTTP PING DNS
移动 江西宜春
225ms 172.67.172.118[美国Cloudflare, Inc.]
104.21.47.205[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	600	IN	A	172.67.172.118
ucu520.top.	600	IN	A	104.21.47.205

;; Query time: 225 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon Oct 12 01:48:05 CST 2026
;; MSG SIZE  rcvd: 91
详情
详情 HTTP PING DNS
移动 内蒙古阿拉善盟
245ms 104.21.47.205[美国Cloudflare, Inc.]
172.67.172.118[美国Cloudflare, Inc.]
ucu520.top.		300	IN	A	104.21.47.205
ucu520.top.		300	IN	A	172.67.172.118
;; Query time: 245 msec
;; SERVER: 211.138.91.1#53(211.138.91.1) (UDP)
;; WHEN: Mon Oct 12 01:48:05 CST 2026
;; MSG SIZE  rcvd: 60

详情
详情 HTTP PING DNS
移动 青海西宁
246ms 104.21.47.205[美国Cloudflare, Inc.]
172.67.172.118[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	104.21.47.205
ucu520.top.	300	IN	A	172.67.172.118

;; Query time: 246 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Mon Oct 12 01:48:05 CST 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
移动 天津
98ms 104.21.47.205[美国Cloudflare, Inc.]
172.67.172.118[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	104.21.47.205
ucu520.top.	300	IN	A	172.67.172.118

;; Query time: 98 msec
;; SERVER: 211.136.17.107#53(211.136.17.107)
;; WHEN: Mon Oct 12 01:48:05 CST 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
联通 北京
0ms DNS服务器未响应
;; connection timed out; no servers could be reached
详情
详情 HTTP PING DNS
联通 青海
239ms 104.21.47.205[美国Cloudflare, Inc.]
172.67.172.118[美国Cloudflare, Inc.]
ucu520.top.		300	IN	A	104.21.47.205
ucu520.top.		300	IN	A	172.67.172.118
;; Query time: 239 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Sun Oct 11 17:48:06 UTC 2026
;; MSG SIZE  rcvd: 60

详情
详情 HTTP PING DNS
联通 江西
227ms 104.21.47.205[美国Cloudflare, Inc.]
172.67.172.118[美国Cloudflare, Inc.]
ucu520.top.		300	IN	A	104.21.47.205
ucu520.top.		300	IN	A	172.67.172.118
;; Query time: 227 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Sun Oct 11 17:48:05 UTC 2026
;; MSG SIZE  rcvd: 60

详情
详情 HTTP PING DNS
联通 福建泉州
226ms 172.67.172.118[美国Cloudflare, Inc.]
104.21.47.205[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	172.67.172.118
ucu520.top.	300	IN	A	104.21.47.205

;; Query time: 226 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon Oct 12 01:48:05 CST 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
联通 广西梧州
267ms 104.21.47.205[美国Cloudflare, Inc.]
172.67.172.118[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	104.21.47.205
ucu520.top.	300	IN	A	172.67.172.118

;; Query time: 267 msec
;; SERVER: 192.168.5.30#53(192.168.5.30)
;; WHEN: Mon Oct 12 01:48:05 CST 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
联通 河南平顶山
227ms 172.67.172.118[美国Cloudflare, Inc.]
104.21.47.205[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	172.67.172.118
ucu520.top.	300	IN	A	104.21.47.205

;; Query time: 227 msec
;; SERVER: 223.5.5.5#53(223.5.5.5)
;; WHEN: Sun Oct 11 17:48:05 UTC 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
联通 湖南衡阳
189ms 104.21.47.205[美国Cloudflare, Inc.]
172.67.172.118[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	104.21.47.205
ucu520.top.	300	IN	A	172.67.172.118

;; Query time: 189 msec
;; SERVER: 58.20.127.170#53(58.20.127.170)
;; WHEN: Mon Oct 12 01:48:05 CST 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
联通 陕西西安
256ms 172.67.172.118[美国Cloudflare, Inc.]
104.21.47.205[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	172.67.172.118
ucu520.top.	300	IN	A	104.21.47.205

;; Query time: 256 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Sun Oct 11 17:48:05 UTC 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
联通 四川成都
0ms 没有记录
;; communications error to 127.0.0.1:53: read udp 127.0.0.1:54362->127.0.0.1:53: i/o timeout
详情
详情 HTTP PING DNS
联通 云南昆明
234ms 172.67.172.118[美国Cloudflare, Inc.]
104.21.47.205[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	172.67.172.118
ucu520.top.	300	IN	A	104.21.47.205

;; Query time: 234 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon Oct 12 01:48:05 CST 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
联通 浙江温州
232ms 172.67.172.118[美国Cloudflare, Inc.]
104.21.47.205[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	172.67.172.118
ucu520.top.	300	IN	A	104.21.47.205

;; Query time: 232 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Mon Oct 12 01:48:05 CST 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS
联通 重庆
206ms 172.67.172.118[美国Cloudflare, Inc.]
104.21.47.205[美国Cloudflare, Inc.]
; <<>> DiG Go <<>> +noall +answer +stats ucu520.top
;; global options: +cmd

;; ANSWER SECTION:
ucu520.top.	300	IN	A	172.67.172.118
ucu520.top.	300	IN	A	104.21.47.205

;; Query time: 206 msec
;; SERVER: 221.5.203.98#53(221.5.203.98)
;; WHEN: Mon Oct 12 01:48:05 CST 2026
;; MSG SIZE  rcvd: 80
详情
详情 HTTP PING DNS

查询结果仅供参考,不保证100%准确。

ucu520.top 优化建议

1、检测可见公网权威解析稳定关联于美国Cloudflare节点,且存在单次无效异常响应,建议利用dns测试工具与dns检测工具重点观察杭州移动dns与西安移动dns等地域路径下的实时查询表现,并参考dns测速在线与dns解析在线数据优化解析策略。
2、当前双A记录轮询返回顺序频繁交替,建议通过dns轮询与dns选优机制,结合dns速度测试和dns解析速度测试结果,对比美国双节点在不同运营商下的响应差异,优先配置低延迟节点以规避个别查询超时风险。
3、鉴于所有可用解析均指向海外IP,建议联动dns污染检测与dns劫持检测工具进行安全校验,同时利用dns历史解析记录查询与dns域名查询评估节点流动性,并依据在线测试最佳dns结论调整域名dns解析设置。

其他工具历史

更新时间 2026-10-12 07:37:02
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