`b45.coreserver.jp`

DNSSEC	⚠️ Not signed
A	202.172.25.46^{🇯🇵 DRNET202.172.24.0/21}
		PTR	`b45.coreserver.jp`
MX	`b45.coreserver.jp` ⭐
		A	202.172.25.46^{🇯🇵 DRNET202.172.24.0/21}
			PTR	`b45.coreserver.jp`
TXT	`v=spf1 a:b45.coreserver.jp include:mxr.valueserver.jp ~all`

`coreserver.jp`

DNSSEC	⚠️ Not signed
A	104.18.24.150^{Cloudflare104.18.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.25.150^{Cloudflare104.18.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`gabriel.ns.cloudflare.com` ⭐
NS	`vera.ns.cloudflare.com`
MX	`mail.coreserver.jp` ⭐
TXT	`google-site-verification=M52iG-enU0nhGjZ1Rv0-Jd8Gpn3NEjwa4cWvyYct9tU`
TXT	`v=spf1 a:www.coreserver.jp ip4:202.172.25.31 include:_spf.google.com ~all`
TXT	`v=spf1 redirect=value-domain.com`
HTTPS	HTTP/2 ✓ hints match
		IPv4 hints	104.18.24.150, 104.18.25.150
SOA	`gabriel.ns.cloudflare.com`dns@cloudflare.com serial=2400112445

WOT: SAFE (59/100)
rank #62256 globally
rank #1163 in the tld
WOT: SAFE (58/100)
📈 Tranco rank: #41,768

PTR for

46.25.172.202.in-addr.arpa

MX for

b45.coreserver.jp

Same first word

b45.in

b45.de

b45.ru

b45.dk

b45.org

b45.fr

b45.com

b45.co

b45.net

Similar names

45b.dk

54b.org

45b.de

b54.net

b54.co

54b.dk

54b.pl

45b.eu

4b5.net

4b5.com

54b.de

5b4.de

b54.de

4b5.ru

5b4.ru

b54.cn

b54.eu

b54.com

45b.net

54b.me

54b.eu

b54.nl

54b.com

5b4.cn

5b4.com

45b.org

b54.org

DNS History

2 records (2 active, 0 former)

●MXb45.coreserver.jp2015-08-13 → 2026-04-23 · 2 obs

● 2015-08-13 17:00:02
● 2026-04-23 20:42:26

●A202.172.25.462015-08-13 → 2026-04-23 · 2 obs

● 2015-08-13 17:00:02
● 2026-04-23 20:42:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	b.dns.jp, d.dns.jp, f.dns.jp, a.dns.jp...	-
coreserver.jp	gabriel.ns.cloudflare.com, vera.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.244

NS records: gabriel.ns.cloudflare.com, vera.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coreserver.jp (unsigned zone)

⏱️ Timing

Total: 562ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`202.172.25.46`
MX	1	`b45.coreserver.jp (pri: 10)`
TXT	1	`v=spf1 a:b45.coreserver.jp include:mxr.v`

Analysis

Mail Server Role

b45.coreserver.jp serves as the mail server for b45.coreserver.jp.

IP Addresses

b45.coreserver.jp points to an IP address: 202.172.25.46.

other host names include xn--r4w.jp, sugiyou.com, www.yuyado-ichibanchi.jp, root.otogino.co.jp and ns.kikunosuke.com; they share IP numbers with b45.coreserver.jp.

Mail Servers

b45.coreserver.jp is handled by a single mail server.

The host name b45.coreserver.jp points to IP 202.172.25.46.

b45.coreserver.jp - robtex.com