sylvan.jp - robtex.com

sylvan.jp

DNSSEC⚠️ Not signed
A202.172.25.42🇯🇵 DRNET202.172.24.0/21
PTRb41.coreserver.jp
NSns1.value-domain.com ⭐
A172.64.52.38🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.52.161🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns2.value-domain.com
A172.64.53.3🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.53.115🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns3.value-domain.com ⚠️ Not in zone NS records
A172.64.52.38🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.52.161🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
MXsylvan.jp ⭐
A202.172.25.42🇯🇵 DRNET202.172.24.0/21
PTRb41.coreserver.jp
TXTgoogle-site-verification=ClhHL-WgGkOSLhN_JCgq36eUv4Sjfx93szpaMuJ8FoA
TXTv=spf1 ip4:202.172.25.42 ~all
SOAns1.value-domain.comhostmaster@sylvan.jp 2026-03-20 #15

jp

DNSSEC🔒 Signed (DS record present)
NSz.dns.jp ⭐
NSa.dns.jp
NSb.dns.jp
NSc.dns.jp
NSd.dns.jp
NSe.dns.jp
NSf.dns.jp
NSg.dns.jp
NSh.dns.jp
SOAz.dns.jproot@dns.jp serial=1774397703

MX for

sylvan.jp

Subdomains

www.sylvan.jp

Same first word

sylvan.net
sylvan.nl
sylvan.se
sylvan.hu
sylvan.k12.ca.us
sylvan.be
sylvan.biz
sylvan.st
sylvan.jp
sylvan.bc.ca
sylvan.co
sylvan.com
sylvan.com.pt
sylvan.info
sylvan.it
sylvan.eu
sylvan.org.uk
sylvan.de
sylvan.org
sylvan.cz
sylvan.me

Similar names

lyvans.com
lsnavy.net
salvyn.com
slavny.ru
synval.com
valsyn.com
savnly.com
vanlys.com
vansly.com

DNS History

5 records (5 active, 0 former)

20162017201820192020202120222023202420252026NSns1.value-domain.comns2.value-domain.comns3.value-domain.comMXsylvan.jpA202.172.25.42
●NSns1.value-domain.com2015-08-16 → 2026-03-25 · 2 obs
● 2015-08-16 02:53:14
● 2026-03-25 00:48:08
●NSns2.value-domain.com2015-08-16 → 2026-03-25 · 2 obs
● 2015-08-16 02:53:14
● 2026-03-25 00:48:08
●NSns3.value-domain.com2026-02-28 → 2026-03-25 · 3 obs
○ 2015-08-16 02:53:14
● 2026-02-28 13:51:22
● 2026-03-25 00:48:08
●MXsylvan.jp2015-08-16 → 2026-03-25 · 2 obs
● 2015-08-16 02:53:14
● 2026-03-25 00:48:08
●A202.172.25.422015-08-16 → 2026-03-25 · 2 obs
● 2015-08-16 02:53:14
● 2026-03-25 00:48:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jph.dns.jp, b.dns.jp, a.dns.jp, c.dns.jp...15 records
sylvan.jpns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com-

✅ Authoritative Response

Server:172.64.52.161

NS records: ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sylvan.jp (unsigned zone)

⏱️ Timing

Total: 805ms | Queries: -

📄 Records

TypeCountSample Data
A1202.172.25.42
NS2ns2.value-domain.com, ns1.value-domain.com
MX1sylvan.jp (pri: 10)
TXT2google-site-verification=ClhHL-WgGkOSLhN, v=spf1 ip4:202.172.25.42 ~all
SOA1ns1.value-domain.com hostmaster.sylvan.j

📌 Glue Records Collected

Total: 15

In-bailiwick: 15 (h.dns.jp, g.dns.jp, f.dns.jp...)

Analysis

Hierarchy

The parent of www.sylvan.jp is sylvan.jp.

Mail Server Role

sylvan.jp serves as the mail server for sylvan.jp.

IP Addresses

sylvan.jp points to IP number: 202.172.25.42.

Other host names such as dousoukai-mie-ueng.org, an-te.net, ooya.co.jp, www.sylvan.jp and belief-1.co.jp share IPs with sylvan.jp.

Name Servers

sylvan.jp is delegated to three name servers: ns1.value-domain.com, ns2.value-domain.com and ns3.value-domain.com.

sylvan.jp at least partially shares name servers with other domains, for instance rblact.org, yamaguchi-u.info, c-pro.net, netline-s.com and minamideban.com.

these name servers are commonly used together with the name servers ns4.value-domain.com, ns5.value-domain.com, ns11.value-domain.com, ns12.value-domain.com and ns13.value-domain.com.

Host names with two IP numbers

The host name ns1.value-domain.com points to 172.64.52.38 and 172.64.52.161. The host name ns2.value-domain.com points to 172.64.53.3 and 172.64.53.115. The host name ns3.value-domain.com points to 172.64.52.38 and 172.64.52.161. Host names that point to 172.64.52.38 are ns1.value-domain.com and ns3.value-domain.com. Host names that point to 172.64.52.161 are ns1.value-domain.com and ns3.value-domain.com.

Mail Servers

sylvan.jp is handled by a single mail server, sylvan.jp.

sylvan.jp points to a single IP: 202.172.25.42.