`s171.coreserver.jp`

DNSSEC	⚠️ Not signed
A	202.172.28.172^{🇯🇵 DRNET202.172.24.0/21}
		PTR	`s171.coreserver.jp`
MX	`s171.coreserver.jp` ⭐
		A	202.172.28.172^{🇯🇵 DRNET202.172.24.0/21}
			PTR	`s171.coreserver.jp`
TXT	`v=spf1 a:s171.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 #62350 globally
rank #1199 in the tld
WOT: SAFE (58/100)
📈 Tranco rank: #41,965

PTR for

172.28.172.202.in-addr.arpa

MX for

s171.coreserver.jp

Same first word

s171.cc

Similar names

711s.cc

s117.com

171s.cc

s117.ru

711s.vip

117s.com

s117.me

s117.de

s711.info

DNS History

2 records (2 active, 0 former)

●MXs171.coreserver.jp2015-07-08 → 2026-05-11 · 3 obs

○ 2008-05-05 04:50:38
● 2015-07-08 16:57:20
● 2026-05-11 17:08:20

●A202.172.28.1722015-07-08 → 2026-05-11 · 3 obs

○ 2008-05-05 04:50:38
● 2015-07-08 16:57:20
● 2026-05-11 17:08:20

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:173.245.58.147

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: 619ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`202.172.28.172`
MX	1	`s171.coreserver.jp (pri: 10)`
TXT	1	`v=spf1 a:s171.coreserver.jp include:mxr.`

Analysis

Mail Server Role

s171.coreserver.jp serves as the mail server for s171.coreserver.jp.

IP Addresses

s171.coreserver.jp points to an IP address: 202.172.28.172.

other host names include yamano-s.com, alteka.net, mail.a-sukikaku.com, xn--q9jbbq2lv38q9yvi4m.biz and newmarketgeneral.com; they share IP numbers with s171.coreserver.jp.

Mail Servers

s171.coreserver.jp is handled by a single mail server.

The host name s171.coreserver.jp points to IP 202.172.28.172.

s171.coreserver.jp - robtex.com