letsworks.com - robtex.com
letsworks.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 43.202.190.57🇰🇷 Amazon43.200.0.0/14 EC2 ICN Prefix | ||||||
| PTR | letsworks.com | ||||||
| NS | ns3.dnszi.com ⭐ | ||||||
| A | 121.78.251.20🇰🇷 KINXIDC-AS-KR121.78.224.0/19 KINX-Net | ||||||
| NS | ns18.dnszi.com | ||||||
| A | 121.78.72.36🇰🇷 KINXIDC-AS-KR121.78.72.0/24 KINX-IDC | ||||||
| PTR | ns18.dnszi.com | ||||||
| NS | ns51.dnszi.com | ||||||
| A | 27.1.16.81🇰🇷 DAOU-AS-KR27.1.16.0/22 DAOU Tech | ||||||
| PTR | ns51.dnszi.com | ||||||
| NS | ns62.dnszi.com | ||||||
| A | 58.120.225.167🇰🇷 SKB-NET58.120.0.0/13 auto-generated route object for 58.120.0.0/13 | ||||||
| PTR | ns62.dnszi.com | ||||||
| NS | ns74.dnszi.com | ||||||
| A | 121.78.251.26🇰🇷 KINXIDC-AS-KR121.78.224.0/19 KINX-Net | ||||||
| MX | email.letsworks.com ⭐ | ||||||
| A | 43.202.190.57🇰🇷 Amazon43.200.0.0/14 EC2 ICN Prefix | ||||||
| PTR | letsworks.com | ||||||
| TXT | v=spf1 a mx -all | ||||||
| SOA | ns3.dnszi.comroot@dnszi.com 2026-03-08 #5 | ||||||
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=1774546022 | ||||||
PTR for
DNS History
20 records (7 active, 13 former)
○NSns1.whois.com2017-03-19 → 2017-03-19 · 3 obs
○ 2020-02-11 13:30:10
○ 2026-03-26 17:51:56
●NSns18.dnszi.com2020-02-11 → 2026-03-26 · 3 obs
● 2020-02-11 13:30:10
● 2026-03-26 17:51:56
○NSns2.whois.com2017-03-19 → 2017-03-19 · 3 obs
○ 2020-02-11 13:30:10
○ 2026-03-26 17:51:56
●NSns3.dnszi.com2020-02-11 → 2026-03-26 · 3 obs
● 2020-02-11 13:30:10
● 2026-03-26 17:51:56
○NSns3.whois.com2017-03-19 → 2017-03-19 · 3 obs
○ 2020-02-11 13:30:10
○ 2026-03-26 17:51:56
○NSns4.whois.com2017-03-19 → 2017-03-19 · 3 obs
○ 2020-02-11 13:30:10
○ 2026-03-26 17:51:56
●NSns51.dnszi.com2020-02-11 → 2026-03-26 · 3 obs
● 2020-02-11 13:30:10
● 2026-03-26 17:51:56
●NSns62.dnszi.com2020-02-11 → 2026-03-26 · 3 obs
● 2020-02-11 13:30:10
● 2026-03-26 17:51:56
●NSns74.dnszi.com2020-02-11 → 2026-03-26 · 3 obs
● 2020-02-11 13:30:10
● 2026-03-26 17:51:56
○MXalt1.aspmx.l.google.com2020-02-11 → 2020-02-11 · 3 obs
● 2020-02-11 13:30:10
○ 2026-03-26 17:51:56
○MXalt2.aspmx.l.google.com2020-02-11 → 2020-02-11 · 3 obs
● 2020-02-11 13:30:10
○ 2026-03-26 17:51:56
○MXalt3.aspmx.l.google.com2020-02-11 → 2020-02-11 · 3 obs
● 2020-02-11 13:30:10
○ 2026-03-26 17:51:56
○MXalt4.aspmx.l.google.com2020-02-11 → 2020-02-11 · 3 obs
● 2020-02-11 13:30:10
○ 2026-03-26 17:51:56
○MXaspmx.l.google.com2020-02-11 → 2020-02-11 · 3 obs
● 2020-02-11 13:30:10
○ 2026-03-26 17:51:56
●MXemail.letsworks.com2026-03-26 → 2026-03-26 · 2 obs
● 2026-03-26 17:51:56
○MXmx.zoho.com2017-03-19 → 2017-03-19 · 3 obs
○ 2020-02-11 13:30:10
○ 2026-03-26 17:51:56
○MXmx2.zoho.com2017-03-19 → 2017-03-19 · 3 obs
○ 2020-02-11 13:30:10
○ 2026-03-26 17:51:56
○A182.162.136.1412017-03-19 → 2017-03-19 · 3 obs
○ 2020-02-11 13:30:10
○ 2026-03-26 17:51:56
●A43.202.190.572026-03-26 → 2026-03-26 · 2 obs
● 2026-03-26 17:51:56
○A49.168.116.1312020-02-11 → 2020-02-11 · 3 obs
● 2020-02-11 13:30:10
○ 2026-03-26 17:51:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| letsworks.com | ns3.dnszi.com, ns18.dnszi.com, ns51.dnszi.com, ns62.dnszi.com... | 5 records |
✅ Authoritative Response
Server:121.78.251.20
NS records: ns3.dnszi.com, ns18.dnszi.com, ns51.dnszi.com, ns62.dnszi.com, ns74.dnszi.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for letsworks.com (unsigned zone)
⏱️ Timing
Total: 603ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 43.202.190.57 |
| NS | 5 | ns74.dnszi.com, ns18.dnszi.com... |
| MX | 1 | email.letsworks.com (pri: 10) |
| TXT | 1 | v=spf1 a mx -all |
| SOA | 1 | ns3.dnszi.com root.dnszi.com |
📌 Glue Records Collected
Total: 5
Out-of-bailiwick: 5 (ns3.dnszi.com, ns18.dnszi.com, ns51.dnszi.com...)
Analysis
IP Addresses
letsworks.com resolves to one IP number: 43.202.190.57.
Other host names, for instance letsguam.com, sejongsimin.com, saipanrentcar.com and ec2-43-202-190-57.ap-northeast-2.compute.amazonaws.com share IP numbers with letsworks.com.
Name Servers
letsworks.com is delegated to five name servers: ns18.dnszi.com, ns3.dnszi.com, ns51.dnszi.com, ns62.dnszi.com and ns74.dnszi.com.
letsworks.com at least partially shares name servers with other domains, for instance chung-hae.com, lulab.net, antnews.org, banuzil.com and naeil.or.kr.
these name servers are commonly used alongside ns.gabia.net.
Host names with one IP number:
ns18.dnszi.com points to 121.78.72.36
ns3.dnszi.com points to 121.78.251.20
ns51.dnszi.com points to 27.1.16.81
ns62.dnszi.com points to 58.120.225.167
ns74.dnszi.com points to 121.78.251.26
Mail Servers
letsworks.com is handled by a single mail server, email.letsworks.com.
email.letsworks.com resolves to IP 43.202.190.57.