s19.coreserver.jp - dns.ninja
s19.coreserver.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 202.172.28.20🇯🇵 DRNET202.172.24.0/21 | ||||||
| PTR | s19.coreserver.jp | ||||||
| MX | s19.coreserver.jp ⭐ | ||||||
| A | 202.172.28.20🇯🇵 DRNET202.172.24.0/21 | ||||||
| PTR | s19.coreserver.jp | ||||||
| TXT | v=spf1 a:s19.coreserver.jp include:mxr.valueserver.jp ~all | ||||||
coreserver.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 104.18.24.150Cloudflare104.18.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.18.25.150Cloudflare104.18.16.0/20 , 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 | _globalsign-domain-verification=rgM5jLvewIPQ1kUWl4oyGT2IX6lJq_GqQv8kTD5OAY | ||||||
| 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.comdns@cloudflare.com serial=2410875002 | ||||||
rank #62740 globally
rank #1334 in the tld
WOT: SAFE (58/100)
📈 Tranco rank: #71,110
PTR for
MX for
s19.coreserver.jp |
Same first word
s19.be |
s19.fr |
s19.net |
s19.biz |
s19.ir |
s19.de |
s19.eu |
s19.org |
s19.nl |
s19.ru |
s19.com |
s19.top |
s19.se |
s19.tech |
s19.in |
s19.ch |
Similar names
DNS History
2 records (2 active, 0 former)
●MXs19.coreserver.jp2015-06-17 → 2026-08-04 · 3 obs
○ 2007-10-02 03:38:02
● 2015-06-17 18:09:36
● 2026-08-04 04:16:02
● 2015-06-17 18:09:36
● 2026-08-04 04:16:02
●A202.172.28.202015-06-17 → 2026-08-04 · 3 obs
○ 2007-10-02 03:38:02
● 2015-06-17 18:09:36
● 2026-08-04 04:16:02
● 2015-06-17 18:09:36
● 2026-08-04 04:16:02
🔍 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:172.64.35.244
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: 1652ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.172.28.20 |
| MX | 1 | s19.coreserver.jp (pri: 10) |
| TXT | 1 | v=spf1 a:s19.coreserver.jp include:mxr.v |
Analysis
Mail Server Role
The MX record for s19.coreserver.jp points back to s19.coreserver.jp — it is its own mail server.
IP Addresses
s19.coreserver.jp directs to one IP number, which is 202.172.28.20.
Among the host names that share IP numbers with s19.coreserver.jp are www.miosys.net, mail.schaft.net, matono.net and two others.
Mail Servers
The MX record for s19.coreserver.jp points to a single mail server: s19.coreserver.jp.
s19.coreserver.jp resolves to 202.172.28.20 and no other IP number.