sysdev.co - dns.ninja

`sysdev.co`

DNSSEC	⚠️ Not signed
NS	`hasslo.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c86^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hasslo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c386^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`hasslo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2386^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`hasslo.ns.cloudflare.com`
		A	108.162.195.134^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hasslo.ns.cloudflare.com`
		A	162.159.44.134^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hasslo.ns.cloudflare.com`
		A	172.64.35.134^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hasslo.ns.cloudflare.com`
NS	`jean.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a79^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jean.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c079^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jean.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2079^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jean.ns.cloudflare.com`
		A	108.162.192.121^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jean.ns.cloudflare.com`
		A	172.64.32.121^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jean.ns.cloudflare.com`
		A	173.245.58.121^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jean.ns.cloudflare.com`
MX	`mail.protonmail.ch` ⭐
		A	176.119.200.128^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mail.protonmail.ch`
		A	185.70.42.128^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mail.protonmail.ch`
		A	185.205.70.128^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mail.protonmail.ch`
MX	`mailsec.protonmail.ch`⁽²⁰⁾
		A	176.119.200.129^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.70.42.129^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.205.70.129^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mailsec.protonmail.ch`
TXT	`protonmail-verification=84900d19bd1712a6fa9f013fdab48562c1ed1031`
TXT	`v=spf1 include:_spf.protonmail.ch mx ~all`
SOA	`hasslo.ns.cloudflare.com`dns@cloudflare.com serial=2410015265

`co`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.registrydns.co`
	NS	`b.registrydns.co`
	NS	`c.registrydns.co`
	NS	`d.registrydns.co`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1759718020

Same first word

sysdev.org

sysdev.no

sysdev.co

sysdev.de

sysdev.cf

sysdev.cl

sysdev.lv

sysdev.eu

sysdev.ro

sysdev.ru

sysdev.es

sysdev.com

sysdev.id

Similar names

devsys.com

devsys.com.br

devsys.cl

devsys.de

devsys.co.kr

devsys.net

devsys.co.in

devyss.de

devsys.co.za

devsys.fr

vedsys.com

devsys.com.uy

devsys.at

devsys.ru

devsys.co.uk

devsys.com.mx

devsys.ca

DNS History

8 records (4 active, 4 former)

●NShasslo.ns.cloudflare.com2026-03-11 → 2026-07-28 · 3 obs

○ 2017-10-04 14:51:26
● 2026-03-11 10:37:38
● 2026-07-28 01:15:20

●NSjean.ns.cloudflare.com2026-03-11 → 2026-07-28 · 3 obs

○ 2017-10-04 14:51:26
● 2026-03-11 10:37:38
● 2026-07-28 01:15:20

○NSns1.sysdev.co2017-10-04 → 2017-10-04 · 3 obs

● 2017-10-04 14:51:26
○ 2026-03-11 10:37:38
○ 2026-07-28 01:15:20

○NSns2.sysdev.co2017-10-04 → 2017-10-04 · 3 obs

● 2017-10-04 14:51:26
○ 2026-03-11 10:37:38
○ 2026-07-28 01:15:20

●MXmail.protonmail.ch2026-03-11 → 2026-07-28 · 3 obs

○ 2017-10-04 14:51:26
● 2026-03-11 10:37:38
● 2026-07-28 01:15:20

○MXmail.sysdev.co2017-10-04 → 2017-10-04 · 3 obs

● 2017-10-04 14:51:26
○ 2026-03-11 10:37:38
○ 2026-07-28 01:15:20

●MXmailsec.protonmail.ch2026-03-11 → 2026-07-28 · 3 obs

○ 2017-10-04 14:51:26
● 2026-03-11 10:37:38
● 2026-07-28 01:15:20

○A158.69.196.1592017-10-04 → 2017-10-04 · 3 obs

● 2017-10-04 14:51:26
○ 2026-03-11 10:37:38
○ 2026-07-28 01:15:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	c.registrydns.co, b.registrydns.co, d.registrydns.co, a.registrydns.co	-
sysdev.co	jean.ns.cloudflare.com, hasslo.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.44.134

NS records: jean.ns.cloudflare.com, hasslo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sysdev.co (unsigned zone)

⏱️ Timing

Total: 1679ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`hasslo.ns.cloudflare.com, jean.ns.cloudflare.com`
MX	2	`mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20)`
TXT	2	`protonmail-verification=84900d19bd1712a6, v=spf1 include:_spf.protonmail.ch mx ~al`
SOA	1	`hasslo.ns.cloudflare.com dns.cloudflare.`

Analysis

Name Servers

sysdev.co is served by two delegated name servers, hasslo.ns.cloudflare.com and jean.ns.cloudflare.com.

sysdev.co has the same name server delegation as a number of other domains, such as keshaa.uno, wallstreetenglish.ch, kitchenknack.com and two more.

At least some of sysdev.co's name servers are shared with other domains, for example printmastersofwillmar.com, kalahkankanker.com, elesix.net and two more.

It is common for these name servers to be used in conjunction with the name servers brynne.ns.cloudflare.com, ivan.ns.cloudflare.com and bob.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

hasslo.ns.cloudflare.com carries IP addresses 108.162.195.134, 162.159.44.134 and 172.64.35.134, with 3 other addresses beyond those.

jean.ns.cloudflare.com carries IP addresses 108.162.192.121, 172.64.32.121 and 173.245.58.121, with 3 other addresses beyond those.

Mail Servers

The MX records for sysdev.co point to two mail servers: mail.protonmail.ch and mailsec.protonmail.ch.

sysdev.co has the same mail server arrangement as a number of other domains, for example brimson.com, warpdrive.se, thebartleys.me and two more.

sysdev.co shares at least some of its mail servers with other domains — for example cukierek.be, nuvole.ch, name-holdings.com and two more.

The hosts mail.protonmail.ch and mailsec.protonmail.ch both resolve to three IP numbers: mail.protonmail.ch to 176.119.200.128, 185.70.42.128 and 185.205.70.128, and mailsec.protonmail.ch to 176.119.200.129, 185.70.42.129 and 185.205.70.129.