521506.com - robtex.com
521506.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.kouming.net ⭐ | ||||||
| A | 2610:150:820a:0:216:3cff:fe7a:96a🇺🇸 SHARKTECH-12610:150:8000::/34 Sharktech Inc. | ||||||
| A | 70.39.75.96🇺🇸 SHARKTECH-170.39.75.0/24 PNAP-CHG FDCS Route | ||||||
| PTR | tesu.edu | ||||||
| A | 208.98.39.15🇺🇸 SHARKTECH-1208.98.39.0/24 | ||||||
| NS | ns2.kouming.net | ||||||
| A | 2400:51c0:0:2::5🇭🇰 SZKF-AS-AP2400:51c0::/32 kwaifong information service | ||||||
| A | 103.97.0.246🇭🇰 SZKF-AS-AP103.97.0.0/24 HKKF | ||||||
| SOA | ns1.kouming.netroot@kouming.net serial=1772591738 | ||||||
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=1776108237 | ||||||
Same first word
521506.com |
Similar names
DNS History
7 records (2 active, 5 former)
○NSdns10.hichina.com2015-10-24 → 2017-02-08 · 4 obs
● 2015-10-24 05:24:36
● 2017-02-08 12:29:44
○ 2026-03-01 10:13:50
○ 2026-04-13 19:50:24
● 2017-02-08 12:29:44
○ 2026-03-01 10:13:50
○ 2026-04-13 19:50:24
○NSdns9.hichina.com2015-10-24 → 2017-02-08 · 4 obs
● 2015-10-24 05:24:36
● 2017-02-08 12:29:44
○ 2026-03-01 10:13:50
○ 2026-04-13 19:50:24
● 2017-02-08 12:29:44
○ 2026-03-01 10:13:50
○ 2026-04-13 19:50:24
●NSns1.kouming.net2026-03-24 → 2026-04-13 · 3 obs
○ 2026-03-01 10:13:50
● 2026-03-24 11:01:16
● 2026-04-13 19:50:24
● 2026-03-24 11:01:16
● 2026-04-13 19:50:24
●NSns2.kouming.net2026-03-24 → 2026-04-13 · 3 obs
○ 2026-03-01 10:13:50
● 2026-03-24 11:01:16
● 2026-04-13 19:50:24
● 2026-03-24 11:01:16
● 2026-04-13 19:50:24
○A118.123.17.622017-02-08 → 2017-02-08 · 3 obs
● 2017-02-08 12:29:44
○ 2026-03-01 10:13:50
○ 2026-04-13 19:50:24
○ 2026-03-01 10:13:50
○ 2026-04-13 19:50:24
○CNAMEsx909303.gotoip2.com2017-02-08 → 2017-02-08 · 3 obs
● 2017-02-08 12:29:44
○ 2026-03-01 10:13:50
○ 2026-04-13 19:50:24
○ 2026-03-01 10:13:50
○ 2026-04-13 19:50:24
○CNAMEweb.m62.abc188.com2017-02-08 → 2017-02-08 · 3 obs
● 2017-02-08 12:29:44
○ 2026-03-01 10:13:50
○ 2026-04-13 19:50:24
○ 2026-03-01 10:13:50
○ 2026-04-13 19:50:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, i.gtld-servers.net, k.gtld-servers.net, d.gtld-servers.net... | - |
| 521506.com | ns1.kouming.net, ns2.kouming.net | - |
✅ Authoritative Response
Server:103.97.0.246
NS records: ns1.kouming.net, ns2.kouming.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 521506.com (unsigned zone)
⏱️ Timing
Total: 651ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| SOA | 1 | ns1.kouming.net root.kouming.net |
Analysis
Name Servers
521506.com's delegation uses two name servers, ns1.kouming.net and ns2.kouming.net.
521506.com shares the same name server setup as other domains, for example kingofbupt.com, lovepet8.com, fldzwj-sz.com, zhengdetax.com and tongdubrass.com.
Three IP numbers for host ns1.kouming.net: 2610:150:820a:0:216:3cff:fe7a:96a, 70.39.75.96 and 208.98.39.15.
Two IP numbers for host ns2.kouming.net: 2400:51c0:0:2::5 and 103.97.0.246.