about520.cn - robtex.com
about520.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 23.231.212.214🇺🇸 ENZU-GLOBAL23.231.192.0/18 Proxy-registered route object | ||||||
| NS | ns1.julydns.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns1.onclouddns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.julydns.com ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.onclouddns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | ns1.julydns.commaster@jmdns.com serial=1784979723 | ||||||
cn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.cn ⭐ | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2035149615 | ||||||
Same first word
about520.cn |
DNS History
14 records (5 active, 9 former)
●NSns1.julydns.com2026-07-26 → 2026-08-06 · 3 obs
● 2026-07-26 09:21:24
● 2026-08-06 20:13:44
○NSns1.myhostadmin.net2015-08-20 → 2017-05-27 · 4 obs
● 2017-05-27 06:44:38
○ 2026-07-26 09:21:24
○ 2026-08-06 20:13:44
●NSns1.onclouddns.com2026-07-26 → 2026-08-06 · 3 obs
● 2026-07-26 09:21:24
● 2026-08-06 20:13:44
●NSns2.julydns.com2026-07-26 → 2026-08-06 · 3 obs
● 2026-07-26 09:21:24
● 2026-08-06 20:13:44
○NSns2.myhostadmin.net2015-08-20 → 2017-05-27 · 4 obs
● 2017-05-27 06:44:38
○ 2026-07-26 09:21:24
○ 2026-08-06 20:13:44
●NSns2.onclouddns.com2026-07-26 → 2026-08-06 · 3 obs
● 2026-07-26 09:21:24
● 2026-08-06 20:13:44
○NSns3.myhostadmin.net2015-08-20 → 2017-05-27 · 4 obs
● 2017-05-27 06:44:38
○ 2026-07-26 09:21:24
○ 2026-08-06 20:13:44
○NSns4.myhostadmin.net2015-08-20 → 2017-05-27 · 4 obs
● 2017-05-27 06:44:38
○ 2026-07-26 09:21:24
○ 2026-08-06 20:13:44
○NSns5.myhostadmin.net2015-08-20 → 2017-05-27 · 4 obs
● 2017-05-27 06:44:38
○ 2026-07-26 09:21:24
○ 2026-08-06 20:13:44
○NSns6.myhostadmin.net2015-08-20 → 2017-05-27 · 4 obs
● 2017-05-27 06:44:38
○ 2026-07-26 09:21:24
○ 2026-08-06 20:13:44
○MXmxbiz1.qq.com2015-08-20 → 2017-05-27 · 4 obs
● 2017-05-27 06:44:38
○ 2026-07-26 09:21:24
○ 2026-08-06 20:13:44
○MXmxbiz2.qq.com2015-08-20 → 2017-05-27 · 4 obs
● 2017-05-27 06:44:38
○ 2026-07-26 09:21:24
○ 2026-08-06 20:13:44
○A211.149.244.1922015-08-20 → 2017-05-27 · 4 obs
● 2017-05-27 06:44:38
○ 2026-07-26 09:21:24
○ 2026-08-06 20:13:44
●A23.231.212.2142026-07-26 → 2026-08-06 · 3 obs
● 2026-07-26 09:21:24
● 2026-08-06 20:13:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | 11 records |
| about520.cn | ns1.onclouddns.com, ns2.onclouddns.com | - |
✅ Authoritative Response
Server:162.159.27.251
NS records: ns1.onclouddns.com, ns2.onclouddns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for about520.cn (unsigned zone)
⏱️ Timing
Total: 2394ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 23.231.212.214 |
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
📌 Glue Records Collected
Total: 11
In-bailiwick: 10 (a.dns.cn, a.dns.cn, b.dns.cn...)
Out-of-bailiwick: 1 (ns.cernet.net)
Analysis
IP Addresses
about520.cn directs to one IP number, which is 23.231.212.214.
Among the host names that share IP numbers with about520.cn are tzdingren.cn, annaonearth.com, haqy.net and two others.
Name Servers
The domain about520.cn is delegated to these four name servers: ns1.julydns.com, ns2.julydns.com, ns1.onclouddns.com and ns2.onclouddns.com.
There is at least partial name server overlap between about520.cn and other domains — 0851hk.net, a0d3abbd7c.top, bbbjz.cn and two more among them.
These name servers frequently co-occur with the name servers ns1.judns.com and ns2.judns.com.
Each of ns1.julydns.com, ns2.julydns.com, ns1.onclouddns.com and ns2.onclouddns.com has a single IP address — ns1.julydns.com and ns2.julydns.com direct to 162.159.48.223, and ns1.onclouddns.com and ns2.onclouddns.com direct to 162.159.27.251.
The host names ns1.julydns.com and ns2.julydns.com both resolve to 162.159.48.223 IP addresses.
The host names ns1.onclouddns.com and ns2.onclouddns.com both resolve to 162.159.27.251 IP addresses.