`b52.coreserver.jp`

DNSSEC	⚠️ Not signed
A	202.172.25.53^{🇯🇵 DRNET202.172.24.0/21}
		PTR	`b1002.coreserver.jp`
MX	`b52.coreserver.jp` ⭐
		A	202.172.25.53^{🇯🇵 DRNET202.172.24.0/21}
			PTR	`b1002.coreserver.jp`
TXT	`v=spf1 a:b52.coreserver.jp a:spf4_mxr.valueserver.jp a:spf5_mxr.valueserver.j...`

`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	104.18.24.150, 104.18.25.150
SOA	`gabriel.ns.cloudflare.com`dns@cloudflare.com serial=2400112445

WOT: SAFE (70/100)
rank #62776 globally
rank #1157 in the tld
WOT: SAFE (70/100)
📈 Tranco rank: #62,953

MX for

b52.coreserver.jp

Same first word

b52.claims

b52.mba

b52.black

b52.co.uk

b52.nl

b52.org

b52.solar

b52.zone

b52.nyc

b52.sh

b52.win

b52.app

b52.com.ua

b52.cn

b52.me

b52.cloud

b52.be

b52.com.pl

b52.ing

b52.cab

b52.club

b52.bot

b52.fo

b52.moe

b52.live

b52.cc

b52.game

b52.sx

b52.poker

b52.co.th

b52.studio

b52.casino

b52.io

b52.gd

b52.cool

b52.at

b52.spot

b52.xyz

b52.info

b52.sk

b52.mobi

b52.fr

b52.ch

b52.solutions

b52.hair

b52.com

Similar names

52b.ru

b25.net

52b.de

25b.cn

b25.at

52b.com

5b2.com.cn

52b.my

b25.ru

b25.be

25b.co

25b.com

b25.cn

b25.su

5b2.cc

5b2.com

b25.com

25b.net

25b.org

b25.de

2b5.de

25b.de

b25.lv

b25.fr

52b.mobi

2b5.com

52b.jp

DNS History

2 records (2 active, 0 former)

●MXb52.coreserver.jp2017-05-07 → 2026-03-29 · 2 obs

● 2017-05-07 12:34:04
● 2026-03-29 11:48:34

●A202.172.25.532017-05-07 → 2026-03-29 · 2 obs

● 2017-05-07 12:34:04
● 2026-03-29 11:48:34

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:162.159.44.244

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coreserver.jp (unsigned zone)

⏱️ Timing

Total: 528ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`202.172.25.53`
MX	1	`b52.coreserver.jp (pri: 10)`
TXT	1	`v=spf1 a:b52.coreserver.jp a:spf4_mxr.va`

Analysis

Mail Server Role

b52.coreserver.jp serves as a mail server for b52.coreserver.jp.

IP Addresses

b52.coreserver.jp points to a single IP: 202.172.25.53.

Other host names, for instance mail.pc-ya.com, o-tsuka.com, www.ktk-sol.co.jp, for-est.jp and eastcourt.net share IP numbers with b52.coreserver.jp.

Mail Servers

b52.coreserver.jp is handled by a single mail server.

b52.coreserver.jp points to IP number 202.172.25.53.

b52.coreserver.jp - robtex.com