`s73.coreserver.jp`

DNSSEC	⚠️ Not signed
A	202.172.28.74^{🇯🇵 DRNET202.172.24.0/21}
		PTR	`s73.coreserver.jp`
MX	`s73.coreserver.jp` ⭐
		A	202.172.28.74^{🇯🇵 DRNET202.172.24.0/21}
			PTR	`s73.coreserver.jp`
TXT	`v=spf1 a:s73.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 #61525 globally
rank #1186 in the tld
WOT: SAFE (58/100)
📈 Tranco rank: #41,934

PTR for

74.28.172.202.in-addr.arpa

MX for

s73.coreserver.jp

Same first word

s73.co

s73.com

s73.it

Similar names

3s7.cn

73s.com

73s.com.br

73s.de

7s3.com

s37.org

3s7.info

3s7.de

37s.cc

37s.com

s37.com

s37.cn

s37.it

73s.cn

s37.ru

37s.com.au

37s.de

37s.net

73s.ru

DNS History

2 records (2 active, 0 former)

●MXs73.coreserver.jp2015-08-14 → 2026-05-10 · 2 obs

● 2015-08-14 18:16:16
● 2026-05-10 00:54:16

●A202.172.28.742015-08-14 → 2026-05-10 · 2 obs

● 2015-08-14 18:16:16
● 2026-05-10 00:54:16

🔍 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:173.245.58.147

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: 832ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`202.172.28.74`
MX	1	`s73.coreserver.jp (pri: 10)`
TXT	1	`v=spf1 a:s73.coreserver.jp include:mxr.v`

Analysis

Mail Server Role

The mail server for s73.coreserver.jp is s73.coreserver.jp.

IP Addresses

s73.coreserver.jp points to a single IP address: 202.172.28.74.

Other host names such as mail.tanimuradenki.com, yasui-hikkoshi.info, kaigoo.net, mail.yasui-hikkoshi.info and mail.1000-fx.info share IPs with s73.coreserver.jp.

Mail Servers

One mail server handles s73.coreserver.jp; that server is s73.coreserver.jp.

s73.coreserver.jp points to a single IP number: 202.172.28.74.

s73.coreserver.jp - robtex.com