🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`engineeringnotes.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:b2a0^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:11e2^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.17.226^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.178.160^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`clyde.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b5b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clyde.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c15b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`clyde.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:215b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`clyde.ns.cloudflare.com`
		A	108.162.193.91^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clyde.ns.cloudflare.com`
		A	172.64.33.91^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clyde.ns.cloudflare.com`
		A	173.245.59.91^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clyde.ns.cloudflare.com`
NS	`lily.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a82^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lily.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c082^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lily.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2082^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lily.ns.cloudflare.com`
		A	108.162.192.130^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lily.ns.cloudflare.com`
		A	172.64.32.130^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lily.ns.cloudflare.com`
		A	173.245.58.130^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lily.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.17.226, 172.67.178.160
		IPv6 hints	2606:4700:3030::ac43:b2a0, 2606:4700:3035::6815:11e2
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=253, name=cloudflare-ech.com
SOA	`clyde.ns.cloudflare.com`dns@cloudflare.com serial=2414215412

`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

engineeringnotes.org

engineeringnotes.xyz

engineeringnotes.pages.dev

engineeringnotes.app

engineeringnotes.dev

engineeringnotes.com

Similar names

stoneengineering.co.uk

engineeringstone.org

stoneengineering.be

stoneengineering.ca

stoneengineering.com

onsetengineering.co.uk

sonetengineering.info

Previous names

Next names

DNS History

6 records (6 active, 0 former)

●NSclyde.ns.cloudflare.com2026-09-10 → 2026-10-01 · 2 obs

● 2026-09-10 22:08:40
● 2026-10-01 13:37:30

●NSlily.ns.cloudflare.com2026-09-10 → 2026-10-01 · 2 obs

● 2026-09-10 22:08:40
● 2026-10-01 13:37:30

●A104.21.17.2262026-09-10 → 2026-10-01 · 2 obs

● 2026-09-10 22:08:40
● 2026-10-01 13:37:30

●A172.67.178.1602026-09-10 → 2026-10-01 · 2 obs

● 2026-09-10 22:08:40
● 2026-10-01 13:37:30

●A2606:4700:3030::ac43:b2a02026-09-10 → 2026-10-01 · 2 obs

● 2026-09-10 22:08:40
● 2026-10-01 13:37:30

●A2606:4700:3035::6815:11e22026-09-10 → 2026-10-01 · 2 obs

● 2026-09-10 22:08:40
● 2026-10-01 13:37:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
engineeringnotes.dev	lily.ns.cloudflare.com, clyde.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.91

NS records: lily.ns.cloudflare.com, clyde.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for engineeringnotes.dev (unsigned zone)

⏱️ Timing

Total: 620ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.17.226, 172.67.178.160`
AAAA	2	`2606:4700:3030::ac43:b2a0, 2606:4700:3035::6815:11e2`
NS	2	`clyde.ns.cloudflare.com, lily.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`clyde.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

engineeringnotes.dev directs to four IP numbers, which are 104.21.17.226, 172.67.178.160, 2606:4700:3030::ac43:b2a0 and 2606:4700:3035::6815:11e2.

cyclescavenger.com, telecmi.in, presswinza.com plus two other host names have IP numbers in common with engineeringnotes.dev.

Name Servers

engineeringnotes.dev is delegated to two name servers: clyde.ns.cloudflare.com and lily.ns.cloudflare.com.

The name server configuration of engineeringnotes.dev is shared with other domains, for instance foroutdoors.co.uk, funplacebeach.com, stop-alzheimer.org and two others.

There is at least partial name server overlap between engineeringnotes.dev and other domains — ailesi.shop, cleanpoop.com.br, lotorama.com.br and two more among them.

These name servers are routinely deployed together with the name servers elle.ns.cloudflare.com.

Hosts with 6 IP addresses each:

clyde.ns.cloudflare.com resolves to 108.162.193.91, 172.64.33.91, 173.245.59.91 and 3 other IP addresses.

lily.ns.cloudflare.com resolves to 108.162.192.130, 172.64.32.130, 173.245.58.130 and 3 other IP addresses.

engineeringnotes.dev - robtex.com