🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`coretoolchain.dev`

DNSSEC	⚠️ Not signed
NS	`ns1.dnsimple-edge.com` ⭐
		A	2620:111:8004::53^{🇺🇸 AS327712620:111:8004::/48 DNSimple Corporation}
		A	199.247.152.53^{🇺🇸 AS32771199.247.152.0/24 DNSimple Corporation}
NS	`ns2.dnsimple-edge.net`
		A	2620:111:8005::53^{🇺🇸 AS327712620:111:8005::/48 Vultr Customer Route}
		A	199.247.153.53^{🇺🇸 AS32771199.247.153.0/24 Vultr Customer Route}
NS	`ns3.dnsimple-edge.io`
		A	2620:111:8006::53^{🇺🇸 AS327712620:111:8006::/48 DNSimple Corporation}
		A	199.247.154.53^{🇺🇸 AS32771199.247.154.0/24 DNSimple Corporation}
NS	`ns4.dnsimple-edge.org`
		A	2620:111:8007::53^{🇺🇸 AS327712620:111:8007::/48 Vultr Customer Route}
		A	199.247.155.53^{🇺🇸 AS32771199.247.155.0/24 Vultr Customer Route}
MX	`smtp.kernel.org` ⭐
		A	35.83.38.47^{🇺🇸 Amazon35.80.0.0/12 EC2 PDX prefix}
			PTR	`ec2-35-83-38-47.us-west-2.compute.amazonaws.com`
		A	35.85.114.177^{🇺🇸 Amazon35.80.0.0/12 EC2 PDX prefix}
			PTR	`ec2-35-85-114-177.us-west-2.compute.amazonaws.com`
		A	44.230.10.245^{🇺🇸 Amazon44.224.0.0/11 EC2 PDX prefix}
			PTR	`ec2-44-230-10-245.us-west-2.compute.amazonaws.com`
TXT	`v=spf1 include:_spf.kernel.org -all`
SOA	`ns1.dnsimple-edge.com`admin@dnsimple.com serial=1698684767

`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

coretoolchain.dev

Similar names

olharconceito.com.br

coolearthcoin.com

noirchocolate.com

ironchocolate.com

Previous names

Next names

DNS History

5 records (5 active, 0 former)

●NSns1.dnsimple-edge.com2026-09-03 → 2026-09-05 · 2 obs

● 2026-09-03 15:15:22
● 2026-09-05 19:02:16

●NSns2.dnsimple-edge.net2026-09-03 → 2026-09-05 · 2 obs

● 2026-09-03 15:15:22
● 2026-09-05 19:02:16

●NSns3.dnsimple-edge.io2026-09-03 → 2026-09-05 · 2 obs

● 2026-09-03 15:15:22
● 2026-09-05 19:02:16

●NSns4.dnsimple-edge.org2026-09-03 → 2026-09-05 · 2 obs

● 2026-09-03 15:15:22
● 2026-09-05 19:02:16

●MXsmtp.kernel.org2026-09-03 → 2026-09-05 · 2 obs

● 2026-09-03 15:15:22
● 2026-09-05 19:02:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
coretoolchain.dev	ns1.dnsimple-edge.com, ns4.dnsimple-edge.org, ns3.dnsimple-edge.io, ns2.dnsimple-edge.net	-

✅ Authoritative Response

Server:199.247.152.53

NS records: ns1.dnsimple-edge.com, ns4.dnsimple-edge.org, ns3.dnsimple-edge.io, ns2.dnsimple-edge.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coretoolchain.dev (unsigned zone)

⏱️ Timing

Total: 1864ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns1.dnsimple-edge.com, ns2.dnsimple-edge.net...`
MX	1	`smtp.kernel.org (pri: 0)`
TXT	1	`v=spf1 include:_spf.kernel.org -all`
SOA	1	`ns1.dnsimple-edge.com admin.dnsimple.com`

Analysis

Name Servers

Four name servers handle the delegation for coretoolchain.dev: ns1.dnsimple-edge.com, ns3.dnsimple-edge.io, ns2.dnsimple-edge.net and ns4.dnsimple-edge.org.

The name servers of coretoolchain.dev overlap at least partially with those of other domains — among them u67.org, bitz7.com, spiritual2020.com and two more.

These name servers commonly appear alongside the name servers ns1.dnsimple.com and ns3.dnsimple.com.

Each of the four hosts ns1.dnsimple-edge.com, ns3.dnsimple-edge.io, ns2.dnsimple-edge.net and ns4.dnsimple-edge.org has two IP addresses. ns1.dnsimple-edge.com points to 199.247.152.53 and 2620:111:8004::53. ns3.dnsimple-edge.io points to 199.247.154.53 and 2620:111:8006::53. ns2.dnsimple-edge.net points to 199.247.153.53 and 2620:111:8005::53. ns4.dnsimple-edge.org points to 199.247.155.53 and 2620:111:8007::53.

Mail Servers

coretoolchain.dev uses one mail server — smtp.kernel.org.

smtp.kernel.org maps to three IP addresses — 35.83.38.47, 35.85.114.177 and 44.230.10.245.

coretoolchain.dev - robtex.com