521txt.com - robtex.com
521txt.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 208.98.40.209🇺🇸 SHARKTECH-1208.98.40.0/24 | ||||||
| NS | www.521txt.com ⭐ | ||||||
| A | 208.98.40.71🇺🇸 SHARKTECH-1208.98.40.0/24 | ||||||
| NS | ns1.4.cn ⚠️ Not in zone NS records | ||||||
| A | 107.167.27.66🇺🇸 SHARKTECH-1107.167.27.0/24 CMI (Customer Route) | ||||||
| NS | ns2.4.cn ⚠️ Not in zone NS records | ||||||
| A | 64.32.10.2🇺🇸 SHARKTECH-164.32.10.0/24 CMI (Customer Route) | ||||||
| SOA | www.521txt.com521txt@com 2008-08-03 #0 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1775379777 | ||||||
Subdomains
www.521txt.com |
Same first word
521txt.com |
DNS History
14 records (4 active, 10 former)
○NSf1g1ns1.dnspod.net2015-08-20 → 2020-03-10 · 4 obs
● 2015-08-20 10:09:52
● 2020-03-10 23:31:24
○ 2026-02-20 05:23:08
○ 2026-04-05 09:22:08
● 2020-03-10 23:31:24
○ 2026-02-20 05:23:08
○ 2026-04-05 09:22:08
○NSf1g1ns2.dnspod.net2015-08-20 → 2020-03-10 · 4 obs
● 2015-08-20 10:09:52
● 2020-03-10 23:31:24
○ 2026-02-20 05:23:08
○ 2026-04-05 09:22:08
● 2020-03-10 23:31:24
○ 2026-02-20 05:23:08
○ 2026-04-05 09:22:08
●NSns1.4.cn2026-02-20 → 2026-04-05 · 3 obs
○ 2020-03-10 23:31:24
● 2026-02-20 05:23:08
● 2026-04-05 09:22:08
● 2026-02-20 05:23:08
● 2026-04-05 09:22:08
●NSns2.4.cn2026-02-20 → 2026-04-05 · 3 obs
○ 2020-03-10 23:31:24
● 2026-02-20 05:23:08
● 2026-04-05 09:22:08
● 2026-02-20 05:23:08
● 2026-04-05 09:22:08
●NSwww.521txt.com2026-02-20 → 2026-04-05 · 3 obs
○ 2020-03-10 23:31:24
● 2026-02-20 05:23:08
● 2026-04-05 09:22:08
● 2026-02-20 05:23:08
● 2026-04-05 09:22:08
○MXmxbiz1.qq.com2015-08-20 → 2020-03-10 · 4 obs
● 2015-08-20 10:09:52
● 2020-03-10 23:31:24
○ 2026-02-20 05:23:08
○ 2026-04-05 09:22:08
● 2020-03-10 23:31:24
○ 2026-02-20 05:23:08
○ 2026-04-05 09:22:08
○MXmxbiz2.qq.com2015-08-20 → 2020-03-10 · 4 obs
● 2015-08-20 10:09:52
● 2020-03-10 23:31:24
○ 2026-02-20 05:23:08
○ 2026-04-05 09:22:08
● 2020-03-10 23:31:24
○ 2026-02-20 05:23:08
○ 2026-04-05 09:22:08
○A103.74.174.742017-02-13 → 2017-02-13 · 4 obs
○ 2016-04-10 15:16:58
● 2017-02-13 23:51:42
○ 2020-03-10 23:31:24
○ 2026-04-05 09:22:08
● 2017-02-13 23:51:42
○ 2020-03-10 23:31:24
○ 2026-04-05 09:22:08
○A108.171.195.1452015-08-20 → 2016-04-10 · 4 obs
● 2015-08-20 10:09:52
● 2016-04-10 15:16:58
○ 2017-02-13 23:51:42
○ 2026-04-05 09:22:08
● 2016-04-10 15:16:58
○ 2017-02-13 23:51:42
○ 2026-04-05 09:22:08
○A149.129.91.1192020-03-10 → 2020-03-10 · 4 obs
○ 2017-02-13 23:51:42
● 2020-03-10 23:31:24
○ 2026-02-20 05:23:08
○ 2026-04-05 09:22:08
● 2020-03-10 23:31:24
○ 2026-02-20 05:23:08
○ 2026-04-05 09:22:08
○A208.98.40.2022026-02-24 → 2026-02-24 · 4 obs
○ 2026-02-20 05:23:08
● 2026-02-24 08:59:40
○ 2026-03-10 22:23:04
○ 2026-04-05 09:22:08
● 2026-02-24 08:59:40
○ 2026-03-10 22:23:04
○ 2026-04-05 09:22:08
●A208.98.40.2092026-03-10 → 2026-04-05 · 3 obs
○ 2026-02-24 08:59:40
● 2026-03-10 22:23:04
● 2026-04-05 09:22:08
● 2026-03-10 22:23:04
● 2026-04-05 09:22:08
○A208.98.40.312026-02-20 → 2026-02-20 · 4 obs
○ 2020-03-10 23:31:24
● 2026-02-20 05:23:08
○ 2026-02-24 08:59:40
○ 2026-04-05 09:22:08
● 2026-02-20 05:23:08
○ 2026-02-24 08:59:40
○ 2026-04-05 09:22:08
○A208.98.40.322026-02-20 → 2026-04-05 · 2 obs
○ 2026-02-20 05:23:08
○ 2026-04-05 09:22:08
○ 2026-04-05 09:22:08
🔍 DNS Trace
Analysis
Hierarchy
www.521txt.com is a child of 521txt.com.
IP Addresses
521txt.com resolves to one IP number: 208.98.40.209.
Other host names, for instance www.jybc.com, vcidc.com, www.21596.com, shmart.252113.84g.com and www.www.www.488444.com share IP numbers with 521txt.com.
Name Servers
521txt.com is delegated to three name servers: ns1.4.cn, ns2.4.cn and www.521txt.com.
521txt.com at least partially shares name servers with other domains, including dotdy.com, shsb.net, fanbaike.com, 4388.cc and cbnz.com.
These name servers are often used with ns3.goldenname.com and ns4.goldenname.com.
Host names with a single IP:
ns1.4.cn points to 107.167.27.66; ns2.4.cn points to 64.32.10.2; www.521txt.com points to 208.98.40.71.