douclass.com - dns.ninja
douclass.com
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=1785200662 | ||||||
Subdomains
mail.douclass.com |
ai-test.douclass.com |
testwiz.douclass.com |
ele.douclass.com |
www.douclass.com |
promotion.douclass.com |
file.douclass.com |
mh.douclass.com |
Same first word
douclass.com |
Similar names
DNS History
12 records (9 active, 3 former)
●NSdns.dong-a.com2026-03-08 → 2026-07-28 · 3 obs
● 2026-03-08 03:41:38
● 2026-07-28 01:25:22
●NSns.dong-a.com2026-03-08 → 2026-07-28 · 3 obs
● 2026-03-08 03:41:38
● 2026-07-28 01:25:22
○NSns1.hhosting.co.kr2015-08-15 → 2016-12-27 · 4 obs
● 2016-12-27 10:32:48
○ 2026-03-08 03:41:38
○ 2026-07-28 01:25:22
○NSns2.hhosting.co.kr2015-08-15 → 2016-12-27 · 4 obs
● 2016-12-27 10:32:48
○ 2026-03-08 03:41:38
○ 2026-07-28 01:25:22
●MXalt1.aspmx.l.google.com2026-03-08 → 2026-07-28 · 3 obs
● 2026-03-08 03:41:38
● 2026-07-28 01:25:22
●MXalt2.aspmx.l.google.com2026-03-08 → 2026-07-28 · 3 obs
● 2026-03-08 03:41:38
● 2026-07-28 01:25:22
●MXalt3.aspmx.l.google.com2026-03-08 → 2026-07-28 · 3 obs
● 2026-03-08 03:41:38
● 2026-07-28 01:25:22
●MXalt4.aspmx.l.google.com2026-03-08 → 2026-07-28 · 3 obs
● 2026-03-08 03:41:38
● 2026-07-28 01:25:22
●MXaspmx.l.google.com2026-03-08 → 2026-07-28 · 3 obs
● 2026-03-08 03:41:38
● 2026-07-28 01:25:22
●MXmail.douclass.com2016-12-27 → 2026-07-28 · 2 obs
● 2026-07-28 01:25:22
○A222.233.55.412015-08-15 → 2016-12-27 · 4 obs
● 2016-12-27 10:32:48
○ 2026-03-08 03:41:38
○ 2026-07-28 01:25:22
●A61.106.16.132026-03-08 → 2026-07-28 · 3 obs
● 2026-03-08 03:41:38
● 2026-07-28 01:25:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| douclass.com | ns.dong-a.com, dns.dong-a.com | 2 records |
✅ Authoritative Response
Server:61.106.16.144
NS records: ns.dong-a.com, dns.dong-a.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for douclass.com (unsigned zone)
⏱️ Timing
Total: 452ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 61.106.16.13 |
| NS | 2 | dns.dong-a.com, ns.dong-a.com |
| MX | 6 | alt3.aspmx.l.google.com (pri: 10), alt4.aspmx.l.google.com (pri: 10)... |
| TXT | 4 | "v=spf1ip4:61.106.16.3 -all", google-site-verification=mUaGuS9nhCG2fJU... |
| SOA | 1 | ns.dong-a.com hostmaster.dong-a.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns.dong-a.com, dns.dong-a.com)
Analysis
Hierarchy
douclass.com is a parent domain; its children include mail.douclass.com, ai-test.douclass.com, testwiz.douclass.com, ele.douclass.com, www.douclass.com and a few other host names.
IP Addresses
douclass.com resolves to just one IP address, 61.106.16.13.
Name Servers
Two name servers handle the delegation for douclass.com: dns.dong-a.com and ns.dong-a.com.
douclass.com shares its NS records with other domains, for example bookdonga.com, dongaclub.com, hidonga.co.kr and two others.
douclass.com and other domains like hidonga.com, educlub.com and dongapublishing.com share some name servers
These name servers are regularly seen alongside ns.hansae.com and prt.dong-a.com as name servers.
Host names that have two IP addresses:
ns.dong-a.com resolves to two addresses: 61.106.16.144 and 103.38.26.33.
Host names that point to one IP address:
The hostname dns.dong-a.com resolves to 103.38.26.33.
ns.dong-a.com along with dns.dong-a.com each resolve to 103.38.26.33 IP addresses.
Mail Servers
The MX records for douclass.com point to 6 mail servers — mail.douclass.com, aspmx.l.google.com, alt1.aspmx.l.google.com and 3 other.
There is at least a partial MX overlap between douclass.com and other domains, including pinflag.cl, badkoncept.dk, mazdasalamanca.com and two others.
These mail servers frequently co-occur with the mail servers alt2.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com and two others.
Host names that have two IP addresses:
aspmx.l.google.com resolves to two addresses: 192.178.218.27 and 2607:f8b0:4004:c09::1a.
alt1.aspmx.l.google.com resolves to two addresses: 108.177.123.27 and 2800:3f0:4003:c0f::1a.
alt2.aspmx.l.google.com resolves to two addresses: 172.253.116.26 and 2a00:1450:400b:c02::1a.
alt3.aspmx.l.google.com resolves to two addresses: 192.178.223.26 and 2a00:1450:4009:c0f::1b.
alt4.aspmx.l.google.com resolves to two addresses: 172.253.157.27 and 2a00:1450:400c:c23::1b.
Host names that point to one IP address:
The hostname mail.douclass.com resolves to 61.106.16.45.