letsdoup.com - dns.ninja
letsdoup.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 1.248.227.158🇰🇷 SKB-NET1.248.0.0/13 auto-generated route object for 1.248.0.0/13 | ||||||
| NS | letsdoup.com ⭐ | ||||||
| A | 1.248.227.158🇰🇷 SKB-NET1.248.0.0/13 auto-generated route object for 1.248.0.0/13 | ||||||
| NS | cns1.simplexi.com | ||||||
| A | 58.121.85.54🇰🇷 SKB-NET58.120.0.0/13 auto-generated route object for 58.120.0.0/13 | ||||||
| NS | cns2.simplexi.com | ||||||
| A | 211.192.139.9🇰🇷 KT-NET211.192.0.0/13 KORnet Powered BY Korea Telecom | ||||||
| MX | letsdoup.com ⭐ | ||||||
| A | 1.248.227.158🇰🇷 SKB-NET1.248.0.0/13 auto-generated route object for 1.248.0.0/13 | ||||||
| TXT | v=spf1 ip4:1.248.227.158 ~all | ||||||
| SOA | letsdoup.compostmaster@letsdoup.com serial=20230410 | ||||||
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=1785646887 | ||||||
NS for
letsdoup.com |
MX for
letsdoup.com |
Same first word
letsdoup.com |
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DNS History
19 records (5 active, 14 former)
●NScns1.simplexi.com2026-02-18 → 2026-08-02 · 3 obs
● 2026-02-18 04:21:30
● 2026-08-02 05:15:02
●NScns2.simplexi.com2026-02-18 → 2026-08-02 · 3 obs
● 2026-02-18 04:21:30
● 2026-08-02 05:15:02
●NSletsdoup.com2026-02-18 → 2026-08-02 · 3 obs
● 2026-02-18 04:21:30
● 2026-08-02 05:15:02
○NSns33.domaincontrol.com2016-12-13 → 2017-10-03 · 4 obs
● 2017-10-03 10:54:30
○ 2026-02-18 04:21:30
○ 2026-08-02 05:15:02
○NSns34.domaincontrol.com2016-12-13 → 2017-10-03 · 4 obs
● 2017-10-03 10:54:30
○ 2026-02-18 04:21:30
○ 2026-08-02 05:15:02
●MXletsdoup.com2026-02-18 → 2026-08-02 · 3 obs
● 2026-02-18 04:21:30
● 2026-08-02 05:15:02
○MXmailstore1.secureserver.net2016-12-13 → 2017-10-03 · 4 obs
● 2017-10-03 10:54:30
○ 2026-02-18 04:21:30
○ 2026-08-02 05:15:02
○MXsmtp.secureserver.net2016-12-13 → 2017-10-03 · 4 obs
● 2017-10-03 10:54:30
○ 2026-02-18 04:21:30
○ 2026-08-02 05:15:02
●A1.248.227.1582026-02-18 → 2026-08-02 · 3 obs
● 2026-02-18 04:21:30
● 2026-08-02 05:15:02
○A184.168.221.112017-10-03 → 2017-10-03 · 4 obs
● 2017-10-03 10:54:30
○ 2026-02-18 04:21:30
○ 2026-08-02 05:15:02
○A184.168.221.122017-10-03 → 2017-10-03 · 4 obs
● 2017-10-03 10:54:30
○ 2026-02-18 04:21:30
○ 2026-08-02 05:15:02
○A184.168.221.162017-10-03 → 2017-10-03 · 4 obs
● 2017-10-03 10:54:30
○ 2026-02-18 04:21:30
○ 2026-08-02 05:15:02
○A184.168.221.232017-10-03 → 2017-10-03 · 4 obs
● 2017-10-03 10:54:30
○ 2026-02-18 04:21:30
○ 2026-08-02 05:15:02
○A184.168.221.52017-10-03 → 2017-10-03 · 4 obs
● 2017-10-03 10:54:30
○ 2026-02-18 04:21:30
○ 2026-08-02 05:15:02
○A184.168.221.552016-12-13 → 2016-12-13 · 3 obs
○ 2017-10-03 10:54:30
○ 2026-08-02 05:15:02
○A50.63.202.122017-10-03 → 2017-10-03 · 4 obs
● 2017-10-03 10:54:30
○ 2026-02-18 04:21:30
○ 2026-08-02 05:15:02
○A50.63.202.212017-10-03 → 2017-10-03 · 4 obs
● 2017-10-03 10:54:30
○ 2026-02-18 04:21:30
○ 2026-08-02 05:15:02
○A50.63.202.312017-10-03 → 2017-10-03 · 4 obs
● 2017-10-03 10:54:30
○ 2026-02-18 04:21:30
○ 2026-08-02 05:15:02
○A50.63.202.92017-10-03 → 2017-10-03 · 4 obs
● 2017-10-03 10:54:30
○ 2026-02-18 04:21:30
○ 2026-08-02 05:15:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | i.gtld-servers.net, b.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net... | - |
| letsdoup.com | cns1.simplexi.com, cns2.simplexi.com | 2 records |
✅ Authoritative Response
Server:58.121.85.54
NS records: cns1.simplexi.com, cns2.simplexi.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for letsdoup.com (unsigned zone)
⏱️ Timing
Total: 487ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 1.248.227.158 |
| NS | 2 | cns2.simplexi.com, cns1.simplexi.com |
| MX | 1 | letsdoup.com (pri: 10) |
| TXT | 1 | v=spf1 ip4:1.248.227.158 ~all |
| SOA | 1 | letsdoup.com postmaster.letsdoup.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (cns1.simplexi.com, cns2.simplexi.com)
Analysis
Name Server Role
The NS records for letsdoup.com point back to letsdoup.com itself.
cns1.simplexi.com, cns2.simplexi.com and letsdoup.com regularly act as name servers together.
Mail Server Role
letsdoup.com handles its own mail, functioning as its own mail server.
IP Addresses
letsdoup.com resolves to just one IP address, 1.248.227.158.
dolsingjjak.com is an example of another host name that shares IP numbers with letsdoup.com.
Name Servers
The DNS delegation for letsdoup.com uses three name servers — letsdoup.com, cns1.simplexi.com and cns2.simplexi.com.
letsdoup.com partially shares its NS delegation with several other domains, including iedu4u.com, medone.co.kr, m-mds.com and two others.
Each of the three hostnames points to exactly one IP address: letsdoup.com points to 1.248.227.158, cns1.simplexi.com points to 58.121.85.54 and cns2.simplexi.com points to 211.192.139.9.
Mail Servers
letsdoup.com is served by just one mail server: letsdoup.com.