ntb.blue - robtex.com
ntb.blue
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.xserver.jp ⚠️ Not in zone NS records | ||||||
| A | 202.226.36.164🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| A | 202.226.36.170🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| A | 202.226.36.246🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns1.xserver.jp | ||||||
| NS | ns2.xserver.jp ⚠️ Not in zone NS records | ||||||
| A | 35.72.43.26🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix | ||||||
| PTR | ns2.xserver.jp | ||||||
| NS | ns3.xserver.jp ⚠️ Not in zone NS records | ||||||
| A | 202.226.36.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns3.xserver.jp | ||||||
| NS | ns4.xserver.jp ⚠️ Not in zone NS records | ||||||
| A | 183.90.224.226🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc. | ||||||
| A | 183.90.224.230🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc. | ||||||
| A | 202.226.39.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns4.xserver.jp | ||||||
| NS | ns5.xserver.jp ⚠️ Not in zone NS records | ||||||
| A | 157.112.182.218🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc. | ||||||
| A | 157.112.182.220🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc. | ||||||
| A | 202.226.37.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns5.xserver.jp | ||||||
blue
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.blue ⭐ | ||||||
| NS | a2.nic.blue | ||||||
| NS | b0.nic.blue | ||||||
| NS | b2.nic.blue | ||||||
| NS | c0.nic.blue | ||||||
| SOA | a0.nic.bluehostmaster@donuts.email serial=1775948008 | ||||||
Previously MX for
ntb.blue |
Same first word
Similar names
DNS History
7 records (5 active, 2 former)
●NSns1.xserver.jp2016-12-10 → 2026-04-11 · 2 obs
● 2026-04-11 23:30:22
●NSns2.xserver.jp2016-12-10 → 2026-04-11 · 2 obs
● 2026-04-11 23:30:22
●NSns3.xserver.jp2016-12-10 → 2026-04-11 · 2 obs
● 2026-04-11 23:30:22
●NSns4.xserver.jp2016-12-10 → 2026-04-11 · 2 obs
● 2026-04-11 23:30:22
●NSns5.xserver.jp2016-12-10 → 2026-04-11 · 2 obs
● 2026-04-11 23:30:22
○MXntb.blue2016-12-10 → 2021-07-03 · 4 obs
● 2021-07-03 02:23:44
○ 2026-03-26 08:42:54
○ 2026-04-11 23:30:22
○A120.136.14.152016-12-10 → 2021-07-03 · 4 obs
● 2021-07-03 02:23:44
○ 2026-03-26 08:42:54
○ 2026-04-11 23:30:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| blue | a0.nic.blue, b2.nic.blue, a2.nic.blue, b0.nic.blue... | 10 records |
| ntb.blue | ns1.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp... | - |
✅ Authoritative Response
Server:202.226.36.247
NS records: ns1.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp, ns2.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ntb.blue (unsigned zone)
⏱️ Timing
Total: 2033ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
📌 Glue Records Collected
Total: 10
In-bailiwick: 10 (a0.nic.blue, a2.nic.blue, b0.nic.blue...)
Analysis
Name Servers
ntb.blue is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.
ntb.blue at least partially shares name servers with other domains, including office-qqsantosu.com, yonacomi.com, mirai-sensei.org, ezboxjp.com and daibo-company.com.
Host names with three IP numbers:
ns1.xserver.jp points to: 202.226.36.164, 202.226.36.170 and 202.226.36.246.
ns4.xserver.jp points to: 183.90.224.226, 183.90.224.230 and 202.226.39.247.
ns5.xserver.jp points to: 157.112.182.218, 157.112.182.220 and 202.226.37.247.
Host names with one IP number:
ns2.xserver.jp points to: 35.72.43.26.
ns3.xserver.jp points to: 202.226.36.247.