`simulation-studies.org`

DNSSEC	⚠️ Not signed
A	121.101.73.57^{🇯🇵 So-net121.101.64.0/18 Sony Network Communications Inc.}
		PTR	`p654939.hyogff01.ap.so-net.ne.jp`
NS	`simulation-studies.org` ⭐
		A	121.101.73.57^{🇯🇵 So-net121.101.64.0/18 Sony Network Communications Inc.}
			PTR	`p654939.hyogff01.ap.so-net.ne.jp`
NS	`dnss10.so-net.ne.jp`
		A	210.139.255.1^{🇯🇵 So-net210.139.128.0/17 Sony Network Communications Inc.}
			PTR	`dnss10.so-net.ne.jp`
NS	`dnss11.so-net.ne.jp`
		A	210.139.255.17^{🇯🇵 So-net210.139.128.0/17 Sony Network Communications Inc.}
			PTR	`dnss11.so-net.ne.jp`
TXT	`v=spf1 +mx ~all`
SOA	`simulation-studies.org`hostmaster@simulation-studies.org serial=2602171610

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1774957652

NS for

simulation-studies.org

Subdomains

www.simulation-studies.org

Same first word

simulation-studies.org

DNS History

4 records (4 active, 0 former)

●NSdnss10.so-net.ne.jp2015-05-30 → 2026-03-31 · 2 obs

● 2015-05-30 07:17:12
● 2026-03-31 12:06:00

●NSdnss11.so-net.ne.jp2015-05-30 → 2026-03-31 · 2 obs

● 2015-05-30 07:17:12
● 2026-03-31 12:06:00

●NSsimulation-studies.org2015-05-30 → 2026-03-31 · 2 obs

● 2015-05-30 07:17:12
● 2026-03-31 12:06:00

●A121.101.73.572015-05-30 → 2026-03-31 · 2 obs

● 2015-05-30 07:17:12
● 2026-03-31 12:06:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
simulation-studies.org	dnss10.so-net.ne.jp, dnss11.so-net.ne.jp	-

✅ Authoritative Response

Server:210.139.255.1

NS records: dnss10.so-net.ne.jp, dnss11.so-net.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for simulation-studies.org (unsigned zone)

⏱️ Timing

Total: 939ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`121.101.73.57`
NS	2	`dnss11.so-net.ne.jp, dnss10.so-net.ne.jp`
TXT	1	`v=spf1 +mx ~all`
SOA	1	`simulation-studies.org hostmaster.simula`

Analysis

Hierarchy

www.simulation-studies.org is a child of simulation-studies.org.

Name Server Role

simulation-studies.org serves as a name server for simulation-studies.org.

dnss10.so-net.ne.jp and dnss11.so-net.ne.jp commonly function as name servers alongside simulation-studies.org.

IP Addresses

simulation-studies.org resolves to one IP number: 121.101.73.57.

Other host names, for example www.simulation-studies.org, share IP numbers with simulation-studies.org.

Name Servers

simulation-studies.org is delegated to three name servers: simulation-studies.org, dnss10.so-net.ne.jp and dnss11.so-net.ne.jp.

simulation-studies.org at least partially shares name servers with other domains, including net-ai.co.jp, abechan.com, e-agent.jp, its08.co.jp and techno-sihnko.jp.

These name servers are commonly used with koken-eng.co.jp.

Host names with a single IP:

simulation-studies.org points to 121.101.73.57; dnss10.so-net.ne.jp points to 210.139.255.1; dnss11.so-net.ne.jp points to 210.139.255.17.

simulation-studies.org - robtex.com