21era.cn的DNS测速结果_dns解析查询_在线查询手机dns-51CESU

工具简介

21era.cn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21era.cn2026-09-28 01:57:05

预估消耗 0 检测点，实际消耗以【检测点账单】为准

检测节点

响应时间分布域名污染分布

污染比例：0%

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概览

区域/运营商	响应最快	响应最慢	平均响应
全部	-17ms	天津电信225ms	58.536ms
电信	上海电信20ms	天津电信225ms	68.083ms
移动	青海西宁移动26ms	河南洛阳移动75ms	45ms
联通	-17ms	陕西西安联通91ms	56.333ms
华东	上海电信20ms	浙江宁波电信83ms	39.429ms
华北	-17ms	天津电信225ms	70.857ms
华南	广东广州电信27ms	广东广州电信27ms	27ms
华中	河南驻马店电信44ms	河南洛阳移动75ms	61.5ms
西北	陕西西安电信26ms	陕西西安联通91ms	46.8ms
西南	云南楚雄彝族自治州电信42ms	-168ms	95.333ms
东北	-74ms	-74ms	74ms

解析占比

全部1 电信1 移动1 联通1 被污染0

复制IP

103.156.68.51

103.156.68.51 100%

DNS查询详情

全部

响应超时0 被污染0

节点数：/

检测点运营商检测节点	解析时间	解析内容	操作
电信西藏	168ms	103.156.68.51[上海浦东新区电信]	21era.cn. 600 IN A 103.156.68.51 ;; Query time: 168 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Sun Sep 27 17:57:00 UTC 2026 ;; MSG SIZE rcvd: 42 详情详情 HTTP PING DNS
电信黑龙江	74ms	103.156.68.51[上海浦东新区电信]	21era.cn. 600 IN A 103.156.68.51 ;; Query time: 74 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Sun Sep 27 17:57:00 UTC 2026 ;; MSG SIZE rcvd: 42 详情详情 HTTP PING DNS
电信广东广州	27ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 27 msec ;; SERVER: 202.96.128.86#53(202.96.128.86) ;; WHEN: Mon Sep 28 01:57:00 CST 2026 ;; MSG SIZE rcvd: 698 详情详情 HTTP PING DNS
电信河南驻马店	44ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 900 IN A 103.156.68.51 ;; Query time: 44 msec ;; SERVER: 192.168.5.1#53(192.168.5.1) ;; WHEN: Mon Sep 28 01:57:00 CST 2026 ;; MSG SIZE rcvd: 664 详情详情 HTTP PING DNS
电信江西南昌	30ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 30 msec ;; SERVER: 202.101.224.69#53(202.101.224.69) ;; WHEN: Mon Sep 28 01:57:00 CST 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS
电信内蒙古包头	40ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 602 IN A 103.156.68.51 ;; Query time: 40 msec ;; SERVER: 114.114.114.114#53(114.114.114.114) ;; WHEN: Sun Sep 27 17:57:00 UTC 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS
电信宁夏银川	38ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 38 msec ;; SERVER: 202.100.96.68#53(202.100.96.68) ;; WHEN: Mon Sep 28 01:57:00 CST 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS
电信陕西西安	26ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 26 msec ;; SERVER: 223.5.5.5#53(223.5.5.5) ;; WHEN: Sun Sep 27 17:57:00 UTC 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS
电信上海	20ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 20 msec ;; SERVER: 223.5.5.5#53(223.5.5.5) ;; WHEN: Mon Sep 28 01:57:00 CST 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS
电信天津	225ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 225 msec ;; SERVER: 127.0.0.53#53(127.0.0.53) ;; WHEN: Sun Sep 27 17:57:00 UTC 2026 ;; MSG SIZE rcvd: 698 详情详情 HTTP PING DNS
电信云南楚雄彝族自治州	42ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 42 msec ;; SERVER: 127.0.0.53#53(127.0.0.53) ;; WHEN: Sun Sep 27 17:57:00 UTC 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS
电信浙江宁波	83ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 83 msec ;; SERVER: 61.153.81.75#53(61.153.81.75) ;; WHEN: Mon Sep 28 01:57:00 CST 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS
移动北京	53ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 53 msec ;; SERVER: 211.136.17.107#53(211.136.17.107) ;; WHEN: Mon Sep 28 01:57:00 CST 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS
移动河南洛阳	75ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 75 msec ;; SERVER: 223.5.5.5#53(223.5.5.5) ;; WHEN: Mon Sep 28 01:57:00 CST 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS
移动湖南长沙	53ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 53 msec ;; SERVER: 211.142.211.124#53(211.142.211.124) ;; WHEN: Mon Sep 28 01:57:00 CST 2026 ;; MSG SIZE rcvd: 61 详情详情 HTTP PING DNS
移动江西宜春	39ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 39 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Mon Sep 28 01:56:59 CST 2026 ;; MSG SIZE rcvd: 61 详情详情 HTTP PING DNS
移动青海西宁	26ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 26 msec ;; SERVER: 127.0.0.53#53(127.0.0.53) ;; WHEN: Mon Sep 28 01:57:00 CST 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS
移动天津	43ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 43 msec ;; SERVER: 211.136.17.107#53(211.136.17.107) ;; WHEN: Mon Sep 28 01:57:00 CST 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS
移动浙江杭州	26ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 30 IN A 103.156.68.51 ;; Query time: 26 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Mon Sep 28 01:56:59 CST 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS
联通云南	76ms	103.156.68.51[上海浦东新区电信]	21era.cn. 600 IN A 103.156.68.51 ;; Query time: 76 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Sun Sep 27 17:57:00 UTC 2026 ;; MSG SIZE rcvd: 42 详情详情 HTTP PING DNS
联通北京	17ms	103.156.68.51[上海浦东新区电信]	21era.cn. 600 IN A 103.156.68.51 ;; Query time: 17 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Sun Sep 27 17:57:00 UTC 2026 ;; MSG SIZE rcvd: 42 详情详情 HTTP PING DNS
联通甘肃庆阳	53ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 53 msec ;; SERVER: 127.0.0.53#53(127.0.0.53) ;; WHEN: Sun Sep 27 17:57:00 UTC 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS
联通河北廊坊	45ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 45 msec ;; SERVER: 223.5.5.5#53(223.5.5.5) ;; WHEN: Sun Sep 27 17:57:00 UTC 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS
联通河南平顶山	74ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 74 msec ;; SERVER: 223.5.5.5#53(223.5.5.5) ;; WHEN: Sun Sep 27 17:57:00 UTC 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS
联通内蒙古赤峰	73ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 73 msec ;; SERVER: 223.5.5.5#53(223.5.5.5) ;; WHEN: Sun Sep 27 17:56:19 UTC 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS
联通陕西西安	91ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 91 msec ;; SERVER: 127.0.0.53#53(127.0.0.53) ;; WHEN: Sun Sep 27 17:57:00 UTC 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS
联通上海	53ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 53 msec ;; SERVER: 223.5.5.5#53(223.5.5.5) ;; WHEN: Mon Sep 28 01:57:00 CST 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS
联通浙江金华	25ms	103.156.68.51[上海浦东新区电信]	; <<>> DiG Go <<>> +noall +answer +stats 21era.cn ;; global options: +cmd ;; ANSWER SECTION: 21era.cn. 600 IN A 103.156.68.51 ;; Query time: 25 msec ;; SERVER: 221.12.1.227#53(221.12.1.227) ;; WHEN: Mon Sep 28 01:57:00 CST 2026 ;; MSG SIZE rcvd: 50 详情详情 HTTP PING DNS

查询结果仅供参考，不保证100%准确。

21era.cn 优化建议

1、建议优先关注区域节点一致性表现，当前电信区域节点整体稳定，可结合dns在线查询、dns测速在线及dns解析查询在线工具，持续监测快慢节点响应差异，利用dns历史解析记录查询验证覆盖情况。
2、当前解析记录均指向同一上海浦东新区电信节点，响应时间跨度从17ms至225ms，建议使用dns检测工具与dns测速工具开展dns速度在线测试，结合dns解析记录查询评估不同时段性能波动，并可参考智能dns策略优化调度。
3、鉴于所有探测节点均归属单一区域单一线路，建议通过dns测试网站进行dns解析在线检测及dns污染查询，关注dns劫持检测与dns污染检测工具反馈，借助dns域名查询及dns解析记录查询工具确认解析正确性，降低单点故障风险。

其他工具历史

更新时间 2026-09-29 09:40:02

	游客	注册用户
检测次数/工具/日	5	50
批量检测数量上限	不支持	10
每日登录奖励	不支持	最高 140 点
监控任务/API	不支持	支持