sysdev-jp.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`sysdev-jp.com`

DNSSEC	⚠️ Not signed
NS	`rustam.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c94^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rustam.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c394^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rustam.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2394^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rustam.ns.cloudflare.com`
		A	108.162.195.148^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rustam.ns.cloudflare.com`
		A	162.159.44.148^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rustam.ns.cloudflare.com`
		A	172.64.35.148^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rustam.ns.cloudflare.com`
NS	`sky.ns.cloudflare.com`
		A	2606:4700:50::a29f:2602^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sky.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c202^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sky.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2202^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sky.ns.cloudflare.com`
		A	108.162.194.2^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sky.ns.cloudflare.com`
		A	162.159.38.2^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sky.ns.cloudflare.com`
		A	172.64.34.2^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sky.ns.cloudflare.com`
MX	`sysdev.sakura.ne.jp` ⭐
		A	49.212.235.91^{🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`www3381.sakura.ne.jp`
TXT	`v=spf1 a:www3381.sakura.ne.jp mx ~all`
SOA	`rustam.ns.cloudflare.com`dns@cloudflare.com serial=2415877461

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1790755229

Same first word

sysdev-jp.com

Previous names

Next names

DNS History

3 records (3 active, 0 former)

●NSrustam.ns.cloudflare.com2026-09-10 → 2026-09-30 · 2 obs

● 2026-09-10 01:39:24
● 2026-09-30 08:01:00

●NSsky.ns.cloudflare.com2026-09-10 → 2026-09-30 · 2 obs

● 2026-09-10 01:39:24
● 2026-09-30 08:01:00

●MXsysdev.sakura.ne.jp2026-09-10 → 2026-09-30 · 2 obs

● 2026-09-10 01:39:24
● 2026-09-30 08:01:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, c.gtld-servers.net, m.gtld-servers.net, b.gtld-servers.net...	-
sysdev-jp.com	sky.ns.cloudflare.com, rustam.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.2

NS records: sky.ns.cloudflare.com, rustam.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sysdev-jp.com (unsigned zone)

⏱️ Timing

Total: 1015ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`rustam.ns.cloudflare.com, sky.ns.cloudflare.com`
MX	1	`sysdev.sakura.ne.jp (pri: 10)`
TXT	1	`v=spf1 a:www3381.sakura.ne.jp mx ~all`
SOA	1	`rustam.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (sky.ns.cloudflare.com, sky.ns.cloudflare.com, sky.ns.cloudflare.com...)

Analysis

Name Servers

sysdev-jp.com has two authoritative name servers — rustam.ns.cloudflare.com and sky.ns.cloudflare.com.

sysdev-jp.com has the same name server delegation as a number of other domains, such as vcfl68qg6ck.workers.dev, iranv2ray.store, elevations.biz and two more.

The name servers of sysdev-jp.com overlap at least partially with those of other domains — among them christian-mitsch.workers.dev, 1909rso.workers.dev, maiasilversmide1.pages.dev and two more.

These name servers commonly co-occur with the name servers danica.ns.cloudflare.com, serenity.ns.cloudflare.com, dolly.ns.cloudflare.com and ram.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

rustam.ns.cloudflare.com points to 108.162.195.148, 162.159.44.148, 172.64.35.148 and 3 other IP addresses.

sky.ns.cloudflare.com points to 108.162.194.2, 162.159.38.2, 172.64.34.2 and 3 other IP addresses.

Mail Servers

sysdev-jp.com routes its mail through a single mail server, sysdev.sakura.ne.jp.

sysdev.sakura.ne.jp points to one IP number — 49.212.235.91.