🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`prototype-dev.work`

DNSSEC	⚠️ Not signed
A	219.94.128.82^{🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
		PTR	`www872.sakura.ne.jp`
NS	`master.dns.ne.jp` ⭐
		A	210.224.172.18^{🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`master.dns.ne.jp`
NS	`ns1.dns.ne.jp`
		A	61.211.236.1^{🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`ns1.dns.ne.jp`
NS	`ns2.dns.ne.jp`
		A	133.167.21.1^{🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan}
			PTR	`ns2.dns.ne.jp`
MX	`prototype-dev.work` ⭐
		A	219.94.128.82^{🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`www872.sakura.ne.jp`
TXT	`v=spf1 a:www872.sakura.ne.jp mx ~all`
SOA	`master.dns.ne.jp`tech@sakura.ad.jp 2019-07-05 #18

`work`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.nic.work` ⭐
	NS	`b.nic.work`
	NS	`c.nic.work`
	NS	`x.nic.work`
	NS	`y.nic.work`
	NS	`z.nic.work`
	SOA	`a.nic.work`admin@tldns.godaddy serial=1793118138

⚠️ On DNS blocklist: spam-tlds

MX for

prototype-dev.work

Same first word

prototype-dev.work

prototype-dev.pages.dev

prototype-dev.com

Similar names

dev-prototype.cloud

dev-prototype.com

Previous names

Next names

DNS History

5 records (5 active, 0 former)

●NSmaster.dns.ne.jp2026-10-03 → 2026-10-27 · 2 obs

● 2026-10-03 00:43:12
● 2026-10-27 16:38:10

●NSns1.dns.ne.jp2026-10-03 → 2026-10-27 · 2 obs

● 2026-10-03 00:43:12
● 2026-10-27 16:38:10

●NSns2.dns.ne.jp2026-10-03 → 2026-10-27 · 2 obs

● 2026-10-03 00:43:12
● 2026-10-27 16:38:10

●MXprototype-dev.work2026-10-03 → 2026-10-27 · 2 obs

● 2026-10-03 00:43:12
● 2026-10-27 16:38:10

●A219.94.128.822026-10-03 → 2026-10-27 · 2 obs

● 2026-10-03 00:43:12
● 2026-10-27 16:38:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
work	a.nic.work, b.nic.work, c.nic.work, x.nic.work...	12 records
prototype-dev.work	ns1.dns.ne.jp, ns2.dns.ne.jp	-

✅ Authoritative Response

Server:133.167.21.1

NS records: ns1.dns.ne.jp, ns2.dns.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for prototype-dev.work (unsigned zone)

⏱️ Timing

Total: 1175ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`219.94.128.82`
NS	2	`ns1.dns.ne.jp, ns2.dns.ne.jp`
MX	1	`prototype-dev.work (pri: 10)`
TXT	1	`v=spf1 a:www872.sakura.ne.jp mx ~all`
SOA	1	`master.dns.ne.jp tech.sakura.ad.jp`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (a.nic.work, a.nic.work, b.nic.work...)

Analysis

Mail Server Role

The MX record for prototype-dev.work points back to prototype-dev.work — it is its own mail server.

IP Addresses

prototype-dev.work directs to one IP number, which is 219.94.128.82.

Among the host names that share IP numbers with prototype-dev.work are stock-job.com, minori-kenchiku.jp, hotflute.com and two others.

Name Servers

The authoritative name servers for prototype-dev.work are master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp — three in total.

prototype-dev.work has at least partial name server overlap with other domains, such as ofmine.jp, emnet.co.jp, frogcatgames.com and two others.

The hostnames master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp each resolve to a single IP: master.dns.ne.jp → 210.224.172.18, ns1.dns.ne.jp → 61.211.236.1, ns2.dns.ne.jp → 133.167.21.1.

Mail Servers

The MX record for prototype-dev.work points to a single mail server: prototype-dev.work.

prototype-dev.work directs to just one IP number, 219.94.128.82.

prototype-dev.work - robtex.com