🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`systemblocks.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:4e5^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:8493^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.4.229^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.132.147^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`cloe.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a56^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cloe.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c056^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`cloe.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2056^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`cloe.ns.cloudflare.com`
		A	108.162.192.86^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cloe.ns.cloudflare.com`
		A	172.64.32.86^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cloe.ns.cloudflare.com`
		A	173.245.58.86^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cloe.ns.cloudflare.com`
NS	`grant.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c82^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grant.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c382^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`grant.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2382^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`grant.ns.cloudflare.com`
		A	108.162.195.130^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grant.ns.cloudflare.com`
		A	162.159.44.130^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grant.ns.cloudflare.com`
		A	172.64.35.130^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grant.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.4.229, 172.67.132.147
		IPv6 hints	2606:4700:3030::6815:4e5, 2606:4700:3036::ac43:8493
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=84, name=cloudflare-ech.com
SOA	`cloe.ns.cloudflare.com`dns@cloudflare.com serial=2412177299

`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

systemblocks.dev

Similar names

blocksystems.buzz

Previous names

Next names

DNS History

6 records (6 active, 0 former)

●NScloe.ns.cloudflare.com2026-08-20 → 2026-08-26 · 2 obs

● 2026-08-20 07:26:30
● 2026-08-26 12:16:04

●NSgrant.ns.cloudflare.com2026-08-20 → 2026-08-26 · 2 obs

● 2026-08-20 07:26:30
● 2026-08-26 12:16:04

●A104.21.4.2292026-08-20 → 2026-08-26 · 2 obs

● 2026-08-20 07:26:30
● 2026-08-26 12:16:04

●A172.67.132.1472026-08-20 → 2026-08-26 · 2 obs

● 2026-08-20 07:26:30
● 2026-08-26 12:16:04

●A2606:4700:3030::6815:4e52026-08-20 → 2026-08-26 · 2 obs

● 2026-08-20 07:26:30
● 2026-08-26 12:16:04

●A2606:4700:3036::ac43:84932026-08-20 → 2026-08-26 · 2 obs

● 2026-08-20 07:26:30
● 2026-08-26 12:16:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	10 records
systemblocks.dev	grant.ns.cloudflare.com, cloe.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.130

NS records: grant.ns.cloudflare.com, cloe.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for systemblocks.dev (unsigned zone)

⏱️ Timing

Total: 951ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.4.229, 172.67.132.147`
AAAA	2	`2606:4700:3030::6815:4e5, 2606:4700:3036::ac43:8493`
NS	2	`cloe.ns.cloudflare.com, grant.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`cloe.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-tld1.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...)

Analysis

IP Addresses

systemblocks.dev directs to four IP numbers, which are 104.21.4.229, 172.67.132.147, 2606:4700:3030::6815:4e5 and 2606:4700:3036::ac43:8493.

ad-motion.co, kitaexpress.life, bdrome.net plus two other host names have IP numbers in common with systemblocks.dev.

Name Servers

systemblocks.dev is delegated to two name servers: cloe.ns.cloudflare.com and grant.ns.cloudflare.com.

The name server configuration of systemblocks.dev is shared with other domains, for instance aadpuserljcynid3cr.workers.dev, sola-dresden.de, nearbyelectrician.com and two others.

The name servers of systemblocks.dev overlap at least partially with those of other domains — among them juanjitopacheco061j5.workers.dev, bytique.com, xzdxz.top and two more.

These name servers commonly appear in combination with the name servers darl.ns.cloudflare.com.

Hosts with 6 IP addresses each:

cloe.ns.cloudflare.com resolves to 108.162.192.86, 172.64.32.86, 173.245.58.86 and 3 other IP addresses.

grant.ns.cloudflare.com resolves to 108.162.195.130, 162.159.44.130, 172.64.35.130 and 3 other IP addresses.

systemblocks.dev - robtex.com