`s102.coreserver.jp`

DNSSEC	⚠️ Not signed
A	202.172.28.103^{🇯🇵 DRNET202.172.24.0/21}
		PTR	`s102.coreserver.jp`
MX	`s102.coreserver.jp` ⭐
		A	202.172.28.103^{🇯🇵 DRNET202.172.24.0/21}
			PTR	`s102.coreserver.jp`
TXT	`v=spf1 a:s102.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 #61991 globally
rank #1167 in the tld
WOT: SAFE (58/100)
📈 Tranco rank: #42,053

PTR for

103.28.172.202.in-addr.arpa

MX for

s102.coreserver.jp

Same first word

s102.com.pl

Similar names

s021.cn

102s.cn

210s.com

2s10.com

120s.cc

s201.com

120s.ru

s012.cc

012s.com

201s.cc

120s.com

02s1.com

s021.com

10s2.com

s120.eu

201s.com

102s.com

s012.com

102s.net

s201.cn

s120.net

021s.com

DNS History

2 records (2 active, 0 former)

●MXs102.coreserver.jp2015-06-24 → 2026-04-25 · 2 obs

● 2015-06-24 23:42:46
● 2026-04-25 22:17:56

●A202.172.28.1032015-06-24 → 2026-04-25 · 2 obs

● 2015-06-24 23:42:46
● 2026-04-25 22:17:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, c.dns.jp, g.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: 776ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`202.172.28.103`
MX	1	`s102.coreserver.jp (pri: 10)`
TXT	1	`v=spf1 a:s102.coreserver.jp include:mxr.`

Analysis

Mail Server Role

For s102.coreserver.jp, the mail server is s102.coreserver.jp.

IP Addresses

s102.coreserver.jp resolves to one IP number: 202.172.28.103.

other host names including info1.hit28ujilga.net, reioff.com, mail.j-eagle.com, wolves.jp and www.whitlandhometour.org share IP numbers with s102.coreserver.jp.

Mail Servers

s102.coreserver.jp is served by a single mail server, s102.coreserver.jp.

s102.coreserver.jp resolves to IP 202.172.28.103.

s102.coreserver.jp - robtex.com