concept-4u.com - robtex.com
concept-4u.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 144.217.29.104🇨🇦 OVH144.217.0.0/16 Hosting route | ||||||
| PTR | cirrus.indowebsite.net | ||||||
| NS | dns1.indowebsite.net ⭐ | ||||||
| A | 51.79.194.75🇸🇬 OVH51.79.128.0/17 Hosting route | ||||||
| PTR | dns1.indowebsite.net | ||||||
| NS | dns2.indowebsite.net | ||||||
| A | 103.112.245.13🇮🇩 IDNIC-7ION-AS-ID103.112.245.0/24 Vultr Customer Route | ||||||
| PTR | dns2.indowebsite.net | ||||||
| NS | dns3.indowebsite.net | ||||||
| A | 54.39.125.27🇨🇦 OVH54.39.0.0/16 Hosting route | ||||||
| PTR | dns3.indowebsite.net | ||||||
| NS | dns4.indowebsite.net | ||||||
| A | 103.112.244.125🇮🇩 IDNIC-7ION-AS-ID103.112.244.0/24 PT. Tujuh Ion Indonesia | ||||||
| PTR | dns4.indowebsite.net | ||||||
| MX | concept-4u.com ⭐ | ||||||
| A | 144.217.29.104🇨🇦 OVH144.217.0.0/16 Hosting route | ||||||
| PTR | cirrus.indowebsite.net | ||||||
| TXT | v=spf1 ip4:144.217.29.104 ip4:54.39.118.90 ip4:54.39.70.216 +a +mx +ip4:216.5... | ||||||
| SOA | dns1.indowebsite.netalerts@indowebsite.net 2026-03-18 #1 | ||||||
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=1771291435 | ||||||
MX for
concept-4u.com |
Same first word
concept-4u.com |
DNS History
10 records (6 active, 4 former)
●NSdns1.indowebsite.net2026-02-26 → 2026-03-23 · 3 obs
● 2026-02-26 13:48:14
● 2026-03-23 08:07:16
●NSdns2.indowebsite.net2026-02-26 → 2026-03-23 · 3 obs
● 2026-02-26 13:48:14
● 2026-03-23 08:07:16
●NSdns3.indowebsite.net2026-02-26 → 2026-03-23 · 3 obs
● 2026-02-26 13:48:14
● 2026-03-23 08:07:16
●NSdns4.indowebsite.net2026-02-26 → 2026-03-23 · 3 obs
● 2026-02-26 13:48:14
● 2026-03-23 08:07:16
○NSns1.thevimark.com2015-07-05 → 2017-08-07 · 5 obs
● 2015-07-05 11:15:52
● 2017-08-07 19:55:28
○ 2026-02-26 13:48:14
○ 2026-03-23 08:07:16
○NSns2.thevimark.com2015-07-05 → 2017-08-07 · 5 obs
● 2015-07-05 11:15:52
● 2017-08-07 19:55:28
○ 2026-02-26 13:48:14
○ 2026-03-23 08:07:16
●MXconcept-4u.com2015-07-05 → 2026-03-23 · 3 obs
● 2015-07-05 11:15:52
● 2026-03-23 08:07:16
○A104.152.168.332016-04-19 → 2017-08-07 · 5 obs
● 2016-04-19 10:33:32
● 2017-08-07 19:55:28
○ 2026-02-26 13:48:14
○ 2026-03-23 08:07:16
●A144.217.29.1042026-02-26 → 2026-03-23 · 3 obs
● 2026-02-26 13:48:14
● 2026-03-23 08:07:16
○A204.197.248.1112015-07-05 → 2016-02-02 · 5 obs
● 2015-07-05 11:15:52
● 2016-02-02 23:36:52
○ 2016-04-19 10:33:32
○ 2026-03-23 08:07:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| concept-4u.com | dns1.indowebsite.net, dns2.indowebsite.net, dns4.indowebsite.net, dns3.indowebsite.net | - |
✅ Authoritative Response
Server:54.39.125.27
NS records: dns1.indowebsite.net, dns2.indowebsite.net, dns4.indowebsite.net, dns3.indowebsite.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for concept-4u.com (unsigned zone)
⏱️ Timing
Total: 1203ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 144.217.29.104 |
| NS | 4 | dns1.indowebsite.net, dns3.indowebsite.net... |
| MX | 1 | concept-4u.com (pri: 0) |
| TXT | 1 | v=spf1 ip4:144.217.29.104 ip4:54.39.118. |
| SOA | 1 | dns1.indowebsite.net alerts.indowebsite. |
Analysis
Mail Server Role
concept-4u.com serves as the mail server for concept-4u.com.
IP Addresses
concept-4u.com points to IP number: 144.217.29.104.
Other host names such as dlsshipping.com, mail.yustine.com, transbahteraindologistik.com, energyre-int.com and boltnutmetric.com share IPs with concept-4u.com.
Name Servers
concept-4u.com is delegated to four name servers: dns1.indowebsite.net, dns2.indowebsite.net, dns3.indowebsite.net and dns4.indowebsite.net.
concept-4u.com at least partially shares name servers with other domains, for instance kpu-probolinggokab.go.id, merapigallery.com, semuada.com, baliexpressindotour.com and bumiatsiri.com.
These name servers are commonly used with ns1.167-114-167-137.cprapid.com and ns2.167-114-167-137.cprapid.com.
Host names with one IP number:
dns1.indowebsite.net points to 51.79.194.75.
dns2.indowebsite.net points to 103.112.245.13.
dns3.indowebsite.net points to 54.39.125.27.
dns4.indowebsite.net points to 103.112.244.125.
Mail Servers
concept-4u.com is handled by a single mail server, concept-4u.com.
concept-4u.com points to a single IP: 144.217.29.104.