521zy.com - robtex.com
521zy.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.julydns.com | ||||||
| A | 47.97.51.45🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD | ||||||
| PTR | ip-47-97-51-45.defastlink.net | ||||||
| NS | ns2.julydns.com | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ip-162-159-48-223.defastlink.net | ||||||
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=1771291435 | ||||||
Same first word
Similar names
DNS History
20 records (2 active, 18 former)
○NSdns.bizcn.com2015-10-23 → 2016-05-06 · 5 obs
○ 2008-03-11 10:43:42
● 2015-10-23 09:51:20
● 2016-05-06 14:45:24
○ 2016-12-29 07:52:02
○ 2026-03-23 19:50:08
● 2015-10-23 09:51:20
● 2016-05-06 14:45:24
○ 2016-12-29 07:52:02
○ 2026-03-23 19:50:08
○NSdns5.expirenotification.com2008-03-11 → 2008-03-11 · 3 obs
● 2008-03-11 10:43:42
○ 2015-10-23 09:51:20
○ 2026-03-23 19:50:08
○ 2015-10-23 09:51:20
○ 2026-03-23 19:50:08
○NSdns6.expirenotification.com2008-03-11 → 2008-03-11 · 3 obs
● 2008-03-11 10:43:42
○ 2015-10-23 09:51:20
○ 2026-03-23 19:50:08
○ 2015-10-23 09:51:20
○ 2026-03-23 19:50:08
●NSns1.julydns.com2026-03-23 → 2026-03-23 · 2 obs
○ 2017-12-19 23:20:00
● 2026-03-23 19:50:08
● 2026-03-23 19:50:08
○NSns1.myhostadmin.net2017-12-19 → 2017-12-19 · 3 obs
○ 2016-12-29 07:52:02
● 2017-12-19 23:20:00
○ 2026-03-23 19:50:08
● 2017-12-19 23:20:00
○ 2026-03-23 19:50:08
●NSns2.julydns.com2026-03-23 → 2026-03-23 · 2 obs
○ 2017-12-19 23:20:00
● 2026-03-23 19:50:08
● 2026-03-23 19:50:08
○NSns2.myhostadmin.net2017-12-19 → 2017-12-19 · 3 obs
○ 2016-12-29 07:52:02
● 2017-12-19 23:20:00
○ 2026-03-23 19:50:08
● 2017-12-19 23:20:00
○ 2026-03-23 19:50:08
○NSns3.myhostadmin.net2017-12-19 → 2017-12-19 · 3 obs
○ 2016-12-29 07:52:02
● 2017-12-19 23:20:00
○ 2026-03-23 19:50:08
● 2017-12-19 23:20:00
○ 2026-03-23 19:50:08
○NSns4.myhostadmin.net2017-12-19 → 2017-12-19 · 3 obs
○ 2016-12-29 07:52:02
● 2017-12-19 23:20:00
○ 2026-03-23 19:50:08
● 2017-12-19 23:20:00
○ 2026-03-23 19:50:08
○NSns5.cnmsn.net2015-10-23 → 2016-05-06 · 5 obs
○ 2008-03-11 10:43:42
● 2015-10-23 09:51:20
● 2016-05-06 14:45:24
○ 2016-12-29 07:52:02
○ 2026-03-23 19:50:08
● 2015-10-23 09:51:20
● 2016-05-06 14:45:24
○ 2016-12-29 07:52:02
○ 2026-03-23 19:50:08
○NSns5.myhostadmin.net2017-12-19 → 2017-12-19 · 3 obs
○ 2016-12-29 07:52:02
● 2017-12-19 23:20:00
○ 2026-03-23 19:50:08
● 2017-12-19 23:20:00
○ 2026-03-23 19:50:08
○NSns6.cnmsn.net2015-10-23 → 2016-05-06 · 5 obs
○ 2008-03-11 10:43:42
● 2015-10-23 09:51:20
● 2016-05-06 14:45:24
○ 2016-12-29 07:52:02
○ 2026-03-23 19:50:08
● 2015-10-23 09:51:20
● 2016-05-06 14:45:24
○ 2016-12-29 07:52:02
○ 2026-03-23 19:50:08
○NSns6.myhostadmin.net2017-12-19 → 2017-12-19 · 3 obs
○ 2016-12-29 07:52:02
● 2017-12-19 23:20:00
○ 2026-03-23 19:50:08
● 2017-12-19 23:20:00
○ 2026-03-23 19:50:08
○A103.51.144.1932016-05-06 → 2016-05-06 · 4 obs
○ 2015-10-23 09:51:20
● 2016-05-06 14:45:24
○ 2016-12-29 07:52:02
○ 2026-03-23 19:50:08
● 2016-05-06 14:45:24
○ 2016-12-29 07:52:02
○ 2026-03-23 19:50:08
○A162.159.210.672015-10-23 → 2015-10-23 · 4 obs
○ 2008-03-11 10:43:42
● 2015-10-23 09:51:20
○ 2016-05-06 14:45:24
○ 2026-03-23 19:50:08
● 2015-10-23 09:51:20
○ 2016-05-06 14:45:24
○ 2026-03-23 19:50:08
○A162.159.211.672015-10-23 → 2015-10-23 · 4 obs
○ 2008-03-11 10:43:42
● 2015-10-23 09:51:20
○ 2016-05-06 14:45:24
○ 2026-03-23 19:50:08
● 2015-10-23 09:51:20
○ 2016-05-06 14:45:24
○ 2026-03-23 19:50:08
○A218.5.78.852008-03-11 → 2008-03-11 · 3 obs
● 2008-03-11 10:43:42
○ 2015-10-23 09:51:20
○ 2026-03-23 19:50:08
○ 2015-10-23 09:51:20
○ 2026-03-23 19:50:08
○CNAMEbizcn-oversea.fhldns.net.cname.yunjiasu-cdn.net2015-10-23 → 2015-10-23 · 3 obs
● 2015-10-23 09:51:20
○ 2016-01-15 12:40:16
○ 2026-03-23 19:50:08
○ 2016-01-15 12:40:16
○ 2026-03-23 19:50:08
○CNAMEstartpage.dnsmsn.com2016-05-06 → 2016-05-06 · 4 obs
○ 2016-01-15 12:40:16
● 2016-05-06 14:45:24
○ 2016-12-29 07:52:02
○ 2026-03-23 19:50:08
● 2016-05-06 14:45:24
○ 2016-12-29 07:52:02
○ 2026-03-23 19:50:08
○CNAMEwangxia520.gotoip11.com2017-12-19 → 2017-12-19 · 3 obs
○ 2016-12-29 07:52:02
● 2017-12-19 23:20:00
○ 2026-03-23 19:50:08
● 2017-12-19 23:20:00
○ 2026-03-23 19:50:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, c.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net... | - |
| 521zy.com | ns1.julydns.com, ns2.julydns.com | 2 records |
✅ Authoritative Response
Server:47.97.51.45
NS records: ns1.julydns.com, ns2.julydns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 521zy.com (unsigned zone)
⏱️ Timing
Total: 493ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.julydns.com, ns2.julydns.com)
Analysis
Name Servers
521zy.com is delegated to two name servers: ns1.julydns.com and ns2.julydns.com.
521zy.com shares the same name server setup as 117962.cn, uniquevent.cn, meca64.com, ntfyh.com and 91gbw.cn.
521zy.com at least partially shares name servers with other domains, for instance cscjh.cn, hongwei0769.com, fupobook.cn, k71mpi.cn and tneng.com.cn.
These name servers are commonly used with ns1.judns.com and ns2.judns.com.
Host names with a single IP:
ns1.julydns.com points to 47.97.51.45.
ns2.julydns.com points to 162.159.48.223.