`s126.coreserver.jp`

DNSSEC	⚠️ Not signed
A	202.172.28.127^{🇯🇵 DRNET202.172.24.0/21}
		PTR	`s126.coreserver.jp`
MX	`s126.coreserver.jp` ⭐
		A	202.172.28.127^{🇯🇵 DRNET202.172.24.0/21}
			PTR	`s126.coreserver.jp`
TXT	`v=spf1 a:s126.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 #61720 globally
rank #1155 in the tld
WOT: SAFE (58/100)
📈 Tranco rank: #41,911

PTR for

127.28.172.202.in-addr.arpa

MX for

magata.net

s126.coreserver.jp

seiko-builtech.com

Same first word

s126.de

Similar names

s261.cn

261s.com

s612.com

216s.com

s162.com

s621.altervista.org

612s.com

s621.net

s162.ru

s216.org.ua

162s.com

DNS History

2 records (2 active, 0 former)

●MXs126.coreserver.jp2015-06-17 → 2026-04-25 · 2 obs

● 2015-06-17 14:39:54
● 2026-04-25 03:35:12

●A202.172.28.1272015-06-17 → 2026-04-25 · 2 obs

● 2015-06-17 14:39:54
● 2026-04-25 03:35:12

🔍 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:172.64.32.147

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: 495ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`202.172.28.127`
MX	1	`s126.coreserver.jp (pri: 10)`
TXT	1	`v=spf1 a:s126.coreserver.jp include:mxr.`

Analysis

Mail Server Role

s126.coreserver.jp serves as a mail server for magata.net, s126.coreserver.jp and seiko-builtech.com.

mail.seiko-builtech.com and smtp.seiko-builtech.com commonly serve as mail servers along with s126.coreserver.jp.

IP Addresses

s126.coreserver.jp points to IP number 202.172.28.127.

For instance, other host names mukanote.com, www.magata.net, wakeari-kakuyasu.com, www.zikisai.com and blueterra.jp share IP numbers with s126.coreserver.jp.

Mail Servers

s126.coreserver.jp is handled by a single mail server, s126.coreserver.jp.

The mail server setup of s126.coreserver.jp is the same as that of other domains, for instance magata.net.

s126.coreserver.jp shares at least partially some mail servers with other domains, for instance seiko-builtech.com.

s126.coreserver.jp points to a single IP: 202.172.28.127.

s126.coreserver.jp - robtex.com