`mail.coreconfan.com`

DNSSEC	⚠️ Not signed
A	183.90.235.7^{🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.}
		PTR	`sv146.xbiz.ne.jp`

`coreconfan.com`

	DNSSEC	⚠️ Not signed
	A	183.90.235.7^{🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.}
	NS	`ns1.xbiz.ne.jp` ⭐
	NS	`ns2.xbiz.ne.jp`
	NS	`ns3.xbiz.ne.jp`
	MX	`coreconfan.com` ⭐
	TXT	`v=spf1 +a:sv146.xbiz.ne.jp +a:coreconfan.com +mx include:spf.sender.xserver.j...`
	SOA	`ns1.xbiz.ne.jp`root@xbiz.ne.jp serial=0

Previously MX for

coreconfan.com

Same first word

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DNS History

2 records (1 active, 1 former)

●A183.90.235.72026-03-26 → 2026-03-31 · 3 obs

○ 2016-05-02 03:20:50
● 2026-03-26 09:57:58
● 2026-03-31 21:46:24

○A54.199.215.652015-05-21 → 2016-05-02 · 4 obs

● 2015-05-21 05:03:50
● 2016-05-02 03:20:50
○ 2026-03-26 09:57:58
○ 2026-03-31 21:46:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
coreconfan.com	ns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp	-

✅ Authoritative Response

Server:157.112.182.247

NS records: ns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coreconfan.com (unsigned zone)

⏱️ Timing

Total: 2353ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`183.90.235.7`

Analysis

IP Addresses

mail.coreconfan.com resolves to one IP number: 183.90.235.7.

other host names including sakurajyuken.co.jp, ns.dohmiya.com, balorama.jp, st-t.jp and yuimarl.co.jp share IP numbers with mail.coreconfan.com.

mail.coreconfan.com - robtex.com