🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`embedded-guide.dev`

DNSSEC	⚠️ Not signed
A	183.90.253.47^{🇯🇵 XSERVER-AS183.90.240.0/20 XSERVER Inc.}
		PTR	`sv1446.xserver.jp`
NS	`ns1.xserver.jp` ⭐
		A	202.226.36.164^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
		A	202.226.36.170^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
		A	202.226.36.246^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns1.xserver.jp`
NS	`ns2.xserver.jp`
		A	35.72.43.26^{🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix}
			PTR	`ns2.xserver.jp`
NS	`ns3.xserver.jp`
		A	202.226.36.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns3.xserver.jp`
NS	`ns4.xserver.jp`
		A	183.90.224.226^{🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.}
		A	183.90.224.230^{🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.}
		A	202.226.39.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns4.xserver.jp`
NS	`ns5.xserver.jp`
		A	157.112.182.218^{🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.}
		A	157.112.182.220^{🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.}
		A	202.226.37.247^{🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.}
			PTR	`ns5.xserver.jp`
MX	`embedded-guide.dev` ⭐
		A	183.90.253.47^{🇯🇵 XSERVER-AS183.90.240.0/20 XSERVER Inc.}
			PTR	`sv1446.xserver.jp`
TXT	`v=spf1 +a:sv1446.xserver.jp +a:embedded-guide.dev +mx include:spf.sender.xser...`
SOA	`ns1.xserver.jp`root@xserver.jp serial=0

`dev`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=1

🔒 HSTS Preload (+subdomains)

MX for

embedded-guide.dev

Same first word

embedded-guide.dev

Previous names

Next names

DNS History

7 records (7 active, 0 former)

●NSns1.xserver.jp2026-09-24 → 2026-09-27 · 2 obs

● 2026-09-24 18:16:20
● 2026-09-27 13:54:48

●NSns2.xserver.jp2026-09-24 → 2026-09-27 · 2 obs

● 2026-09-24 18:16:20
● 2026-09-27 13:54:48

●NSns3.xserver.jp2026-09-24 → 2026-09-27 · 2 obs

● 2026-09-24 18:16:20
● 2026-09-27 13:54:48

●NSns4.xserver.jp2026-09-24 → 2026-09-27 · 2 obs

● 2026-09-24 18:16:20
● 2026-09-27 13:54:48

●NSns5.xserver.jp2026-09-24 → 2026-09-27 · 2 obs

● 2026-09-24 18:16:20
● 2026-09-27 13:54:48

●MXembedded-guide.dev2026-09-24 → 2026-09-27 · 2 obs

● 2026-09-24 18:16:20
● 2026-09-27 13:54:48

●A183.90.253.472026-09-24 → 2026-09-27 · 2 obs

● 2026-09-24 18:16:20
● 2026-09-27 13:54:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
embedded-guide.dev	ns3.xserver.jp, ns2.xserver.jp, ns5.xserver.jp, ns1.xserver.jp...	-

✅ Authoritative Response

Server:157.112.182.220

NS records: ns3.xserver.jp, ns2.xserver.jp, ns5.xserver.jp, ns1.xserver.jp, ns4.xserver.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for embedded-guide.dev (unsigned zone)

⏱️ Timing

Total: 1237ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`183.90.253.47`
NS	5	`ns3.xserver.jp, ns2.xserver.jp...`
MX	1	`embedded-guide.dev (pri: 0)`
TXT	1	`v=spf1 +a:sv1446.xserver.jp +a:embedded-`
SOA	1	`ns1.xserver.jp root.xserver.jp`

Analysis

Mail Server Role

embedded-guide.dev acts as its own mail server.

IP Addresses

embedded-guide.dev points to a single IP number: 183.90.253.47.

Additional host names — vidr.online, otakara.info, ns.douki-imada.com and two others — share IP numbers with embedded-guide.dev.

Name Servers

Delegation for embedded-guide.dev is to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.

embedded-guide.dev has at least partial name server overlap with other domains, such as ayakanoikigaidou.com, rize-p.co.jp, shikokubuhin.net and two others.

It is common to see these name servers used together with name servers ns4.xserver.jp and ns5.xserver.jp.

Host names with three IP numbers:

The hostname ns1.xserver.jp directs to 202.226.36.164, 202.226.36.170 and 202.226.36.246.

The hostname ns4.xserver.jp directs to 183.90.224.226, 183.90.224.230 and 202.226.39.247.

The hostname ns5.xserver.jp directs to 157.112.182.218, 157.112.182.220 and 202.226.37.247.

Host names pointing to a single IP address:

ns2.xserver.jp has the IP address 35.72.43.26.

ns3.xserver.jp has the IP address 202.226.36.247.

Mail Servers

embedded-guide.dev has a single mail server: embedded-guide.dev itself.

embedded-guide.dev directs to just one IP number, 183.90.253.47.

embedded-guide.dev - robtex.com