`s105.coreserver.jp`

DNSSEC	⚠️ Not signed
A	202.172.28.106^{🇯🇵 DRNET202.172.24.0/21}
		PTR	`s105.coreserver.jp`
MX	`s105.coreserver.jp` ⭐
		A	202.172.28.106^{🇯🇵 DRNET202.172.24.0/21}
			PTR	`s105.coreserver.jp`
TXT	`v=spf1 a:s105.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 #61462 globally
rank #1151 in the tld
WOT: SAFE (58/100)
📈 Tranco rank: #42,044

PTR for

106.28.172.202.in-addr.arpa

MX for

s105.coreserver.jp

coobal.org

coore.biz

coore.jp

rep-service.com

rep-service.jp

Previously MX for

www.coore.jp

Same first word

s105.com

s105.cn

Similar names

051s.com

s510.cn

015s.cn

s510.com

501s.net

s150.ru

501s.com

DNS History

2 records (2 active, 0 former)

●MXs105.coreserver.jp2015-08-23 → 2026-04-15 · 3 obs

○ 2008-05-05 04:53:28
● 2015-08-23 07:40:38
● 2026-04-15 20:09:38

●A202.172.28.1062015-08-23 → 2026-04-15 · 3 obs

○ 2008-05-05 04:53:28
● 2015-08-23 07:40:38
● 2026-04-15 20:09:38

🔍 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:172.64.35.244

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: 555ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`202.172.28.106`
MX	1	`s105.coreserver.jp (pri: 10)`
TXT	1	`v=spf1 a:s105.coreserver.jp include:mxr.`

Analysis

Mail Server Role

s105.coreserver.jp serves as the mail server for s105.coreserver.jp, coobal.org, coore.biz, coore.jp, rep-service.com and a few other domains.

IP Addresses

s105.coreserver.jp points to a single IP address: 202.172.28.106.

Other host names such as mail.denyosha.com, charlescasha.com, fans.vg, coobal.net and mail.office-navigator.com share IP numbers with s105.coreserver.jp.

Mail Servers

Mail for s105.coreserver.jp is handled by a single mail server, s105.coreserver.jp.

s105.coreserver.jp uses the same mail server setup as other domains, for instance coobal.org, coore.biz, coore.jp, rep-service.com and rep-service.jp.

Host s105.coreserver.jp points to IP 202.172.28.106.

s105.coreserver.jp - robtex.com