`s136.coreserver.jp`

DNSSEC	⚠️ Not signed
A	202.172.28.137^{🇯🇵 DRNET202.172.24.0/21}
		PTR	`s136.coreserver.jp`
MX	`s136.coreserver.jp` ⭐
		A	202.172.28.137^{🇯🇵 DRNET202.172.24.0/21}
			PTR	`s136.coreserver.jp`
TXT	`v=spf1 a:s136.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	104.18.24.150, 104.18.25.150
SOA	`gabriel.ns.cloudflare.com`dns@cloudflare.com serial=2399147664

WOT: SAFE (59/100)
rank #62470 globally
rank #1150 in the tld
WOT: SAFE (70/100)
📈 Tranco rank: #75,554

PTR for

137.28.172.202.in-addr.arpa

MX for

s136.coreserver.jp

Previously MX for

daichi-inochi.com

Same first word

s136.org

s136.cn

Similar names

631s.com

6s13.com

s316.com

s631.com

163s.cn

136s.cc

s613.com

s163.cn

s361.com

s631.cc

s163.com

1s63.com

361s.com

1s36.com

DNS History

2 records (2 active, 0 former)

●MXs136.coreserver.jp2015-08-02 → 2026-03-25 · 3 obs

○ 2008-05-05 05:19:42
● 2015-08-02 05:32:50
● 2026-03-25 00:27:04

●A202.172.28.1372015-08-02 → 2026-03-25 · 3 obs

○ 2008-05-05 05:19:42
● 2015-08-02 05:32:50
● 2026-03-25 00:27:04

🔍 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:108.162.195.244

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: 587ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`202.172.28.137`
MX	1	`s136.coreserver.jp (pri: 10)`
TXT	1	`v=spf1 a:s136.coreserver.jp include:mxr.`

Analysis

Mail Server Role

For s136.coreserver.jp, the mail server is s136.coreserver.jp.

IP Addresses

s136.coreserver.jp points to a single IP number: 202.172.28.137.

other host names for instance m-brains.com, old.pius.in, birdnavi.com, mail.ems-c.net and kangaer.com share IP numbers with s136.coreserver.jp.

Mail Servers

One mail server handles s136.coreserver.jp.

Host name s136.coreserver.jp points to IP address 202.172.28.137.

s136.coreserver.jp - robtex.com