fourbit.jp - dns.ninja

`fourbit.jp`

DNSSEC	⚠️ Not signed
A	85.131.197.137^{🇯🇵 XSERVER-AS85.131.192.0/18 XSERVER Inc.}
		PTR	`sv16196.xserver.jp`
NS	`ns1.xserver.jp` ⭐
		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`
		A	35.72.43.26^{🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix}
			PTR	`ns2.xserver.jp`
NS	`ns3.xserver.jp`
		A	202.226.36.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns3.xserver.jp`
NS	`ns4.xserver.jp`
		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`
		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`
MX	`fourbit.jp` ⭐
		A	85.131.197.137^{🇯🇵 XSERVER-AS85.131.192.0/18 XSERVER Inc.}
			PTR	`sv16196.xserver.jp`
TXT	`v=spf1 +a:sv16196.xserver.jp +a:fourbit.jp +mx include:spf.sender.xserver.jp ...`
SOA	`ns1.xserver.jp`root@xserver.jp serial=0

`jp`

	DNSSEC	🔒 Signed (DS record present)
	NS	`z.dns.jp` ⭐
	NS	`a.dns.jp`
	NS	`b.dns.jp`
	NS	`c.dns.jp`
	NS	`d.dns.jp`
	NS	`e.dns.jp`
	NS	`f.dns.jp`
	NS	`g.dns.jp`
	NS	`h.dns.jp`
	SOA	`z.dns.jp`root@dns.jp serial=1783221303

MX for

fourbit.jp

Subdomains

www.fourbit.jp

Same first word

fourbit.io

fourbit.jp

fourbit.co.jp

fourbit.com

Similar names

furbito.com

borufit.com

fitobur.com

bitfour.com

biofrut.com

turbofi.com

bioturf.com

bfourit.com

turbofi.sk

tubifor.it

turbofi.com.br

bofruit.com

fibrout.com

bioturf.ch

iforbut.com

fiturbo.com

DNS History

12 records (7 active, 5 former)

○NSdns0.heteml.jp2015-07-06 → 2018-11-19 · 4 obs

● 2015-07-06 15:04:06
● 2018-11-19 06:59:04
○ 2026-07-02 21:52:28
○ 2026-07-05 04:25:36

○NSdns1.heteml.jp2015-07-06 → 2018-11-19 · 4 obs

● 2015-07-06 15:04:06
● 2018-11-19 06:59:04
○ 2026-07-02 21:52:28
○ 2026-07-05 04:25:36

●NSns1.xserver.jp2026-07-02 → 2026-07-05 · 3 obs

○ 2018-11-19 06:59:04
● 2026-07-02 21:52:28
● 2026-07-05 04:25:36

●NSns2.xserver.jp2026-07-02 → 2026-07-05 · 3 obs

○ 2018-11-19 06:59:04
● 2026-07-02 21:52:28
● 2026-07-05 04:25:36

●NSns3.xserver.jp2026-07-02 → 2026-07-05 · 3 obs

○ 2018-11-19 06:59:04
● 2026-07-02 21:52:28
● 2026-07-05 04:25:36

●NSns4.xserver.jp2026-07-02 → 2026-07-05 · 3 obs

○ 2018-11-19 06:59:04
● 2026-07-02 21:52:28
● 2026-07-05 04:25:36

●NSns5.xserver.jp2026-07-02 → 2026-07-05 · 3 obs

○ 2018-11-19 06:59:04
● 2026-07-02 21:52:28
● 2026-07-05 04:25:36

●MXfourbit.jp2026-07-02 → 2026-07-05 · 3 obs

○ 2018-11-19 06:59:04
● 2026-07-02 21:52:28
● 2026-07-05 04:25:36

○MXmail2.heteml.jp2015-07-06 → 2018-11-19 · 4 obs

● 2015-07-06 15:04:06
● 2018-11-19 06:59:04
○ 2026-07-02 21:52:28
○ 2026-07-05 04:25:36

○A157.7.188.2322015-11-22 → 2018-11-19 · 5 obs

○ 2015-07-06 15:04:06
● 2015-11-22 16:42:00
● 2018-11-19 06:59:04
○ 2026-07-02 21:52:28
○ 2026-07-05 04:25:36

○A210.188.199.2462015-07-06 → 2015-07-06 · 3 obs

● 2015-07-06 15:04:06
○ 2015-11-22 16:42:00
○ 2026-07-05 04:25:36

●A85.131.197.1372026-07-02 → 2026-07-05 · 3 obs

○ 2018-11-19 06:59:04
● 2026-07-02 21:52:28
● 2026-07-05 04:25:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
fourbit.jp	ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp...	11 records

✅ Authoritative Response

Server:202.226.36.170

NS records: ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp, ns1.xserver.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for fourbit.jp (unsigned zone)

⏱️ Timing

Total: 773ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`85.131.197.137`
NS	5	`ns1.xserver.jp, ns3.xserver.jp...`
MX	1	`fourbit.jp (pri: 0)`
TXT	1	`v=spf1 +a:sv16196.xserver.jp +a:fourbit.`
SOA	1	`ns1.xserver.jp root.xserver.jp`

📌 Glue Records Collected

Total: 11

Out-of-bailiwick: 11 (ns1.xserver.jp, ns1.xserver.jp, ns1.xserver.jp...)

Analysis

Hierarchy

www.fourbit.jp is delegated beneath fourbit.jp.

Mail Server Role

The MX record for fourbit.jp points back to fourbit.jp — it is its own mail server.

IP Addresses

fourbit.jp directs to one IP number, which is 85.131.197.137.

Among the host names that share IP numbers with fourbit.jp are sekiso-s.co.jp, simz2.jp, analytics-jp.com and two others.

Name Servers

The authoritative name servers for fourbit.jp are ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.

There is at least partial name server overlap between fourbit.jp and other domains — holoholog.com, suzukien-chaho.com, noritane.co.jp and two more among them.

These name servers frequently co-occur with the name servers ns4.xserver.jp and ns5.xserver.jp.

Hosts with three IP address records:

ns1.xserver.jp maps to three IP addresses: 202.226.36.164, 202.226.36.170 and 202.226.36.246.

ns4.xserver.jp maps to three IP addresses: 183.90.224.226, 183.90.224.230 and 202.226.39.247.

ns5.xserver.jp maps to three IP addresses: 157.112.182.218, 157.112.182.220 and 202.226.37.247.

Hosts that resolve to one IP address:

ns2.xserver.jp resolves to the IP address 35.72.43.26.

ns3.xserver.jp resolves to the IP address 202.226.36.247.

Mail Servers

The MX record for fourbit.jp points to a single mail server: fourbit.jp.

fourbit.jp resolves to 85.131.197.137 and no other IP number.