systemsprogramming.dev - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`systemsprogramming.dev`

DNSSEC	⚠️ Not signed
NS	`isla.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a77^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isla.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c077^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`isla.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2077^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`isla.ns.cloudflare.com`
		A	108.162.192.119^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isla.ns.cloudflare.com`
		A	172.64.32.119^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isla.ns.cloudflare.com`
		A	173.245.58.119^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isla.ns.cloudflare.com`
NS	`wesley.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bf6^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`wesley.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1f6^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`wesley.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21f6^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`wesley.ns.cloudflare.com`
		A	108.162.193.246^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`wesley.ns.cloudflare.com`
		A	172.64.33.246^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`wesley.ns.cloudflare.com`
		A	173.245.59.246^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`wesley.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=dc5e5f5bba4911372c32e2774cff506ae36aaca0`
TXT	`v=spf1 include:_spf.protonmail.ch ~all`
SOA	`isla.ns.cloudflare.com`dns@cloudflare.com serial=2414834316

`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)

Same first word

systemsprogramming.dev

systemsprogramming.academy

Similar names

programmingsystems.com

programmingsystems.nl

programmingsystems.eu

Previous names

Next names

DNS History

4 records (4 active, 0 former)

●NSisla.ns.cloudflare.com2026-09-13 → 2026-09-15 · 2 obs

● 2026-09-13 08:18:58
● 2026-09-15 09:12:08

●NSwesley.ns.cloudflare.com2026-09-13 → 2026-09-15 · 2 obs

● 2026-09-13 08:18:58
● 2026-09-15 09:12:08

●MXmail.protonmail.ch2026-09-13 → 2026-09-15 · 2 obs

● 2026-09-13 08:18:58
● 2026-09-15 09:12:08

●MXmailsec.protonmail.ch2026-09-13 → 2026-09-15 · 2 obs

● 2026-09-13 08:18:58
● 2026-09-15 09:12:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...	-
systemsprogramming.dev	isla.ns.cloudflare.com, wesley.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.246

NS records: isla.ns.cloudflare.com, wesley.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for systemsprogramming.dev (unsigned zone)

⏱️ Timing

Total: 678ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`isla.ns.cloudflare.com, wesley.ns.cloudflare.com`
MX	2	`mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20)`
TXT	2	`protonmail-verification=dc5e5f5bba491137, v=spf1 include:_spf.protonmail.ch ~all`
SOA	1	`isla.ns.cloudflare.com dns.cloudflare.co`

Analysis

Name Servers

systemsprogramming.dev has two authoritative name servers — isla.ns.cloudflare.com and wesley.ns.cloudflare.com.

systemsprogramming.dev has the same name server delegation as a number of other domains, such as hydrawaterdamage.com, 5eomvqnz6d8s.workers.dev, brothersplumbingwa.pro and two more.

systemsprogramming.dev partially shares its NS delegation with several other domains, including meetwizobgpub.com, pipstreet.space, moveinhale.info and two others.

These name servers are regularly seen alongside hugh.ns.cloudflare.com and ollie.ns.cloudflare.com as name servers.

Host names resolving to 6 IP numbers:

isla.ns.cloudflare.com points to 108.162.192.119, 172.64.32.119, 173.245.58.119 and 3 other IP addresses.

wesley.ns.cloudflare.com points to 108.162.193.246, 172.64.33.246, 173.245.59.246 and 3 other IP addresses.

Mail Servers

The MX records for systemsprogramming.dev point to two mail servers: mail.protonmail.ch and mailsec.protonmail.ch.

systemsprogramming.dev has the same mail server arrangement as a number of other domains, for example jeffpatterson.me, meta-health.org, cheekyboba.net and two more.

systemsprogramming.dev shares at least some of its mail servers with other domains — for example knurdology.com, jonathanott.de, delloye.org and two more.

mail.protonmail.ch has three IP addresses (176.119.200.128, 185.70.42.128 and 185.205.70.128) and mailsec.protonmail.ch has three IP addresses (176.119.200.129, 185.70.42.129 and 185.205.70.129).