🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`engineeringnotes.app`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:389f^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:bb29^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.56.159^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.187.41^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`garrett.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cc3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`garrett.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3c3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`garrett.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23c3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`garrett.ns.cloudflare.com`
		A	108.162.195.195^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`garrett.ns.cloudflare.com`
		A	162.159.44.195^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`garrett.ns.cloudflare.com`
		A	172.64.35.195^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`garrett.ns.cloudflare.com`
NS	`jewel.ns.cloudflare.com`
		A	2606:4700:50::a29f:26ab^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jewel.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2ab^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jewel.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22ab^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jewel.ns.cloudflare.com`
		A	108.162.194.171^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jewel.ns.cloudflare.com`
		A	162.159.38.171^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jewel.ns.cloudflare.com`
		A	172.64.34.171^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jewel.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.56.159, 172.67.187.41
		IPv6 hints	2606:4700:3031::6815:389f, 2606:4700:3037::ac43:bb29
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=26, name=cloudflare-ech.com
SOA	`garrett.ns.cloudflare.com`dns@cloudflare.com serial=2415999605

`app`

	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=101427

🔒 HSTS Preload (+subdomains)

Same first word

engineeringnotes.xyz

engineeringnotes.pages.dev

engineeringnotes.app

engineeringnotes.dev

engineeringnotes.com

engineeringnotes.org

Similar names

stoneengineering.ca

stoneengineering.com

onsetengineering.co.uk

sonetengineering.info

stoneengineering.co.uk

engineeringstone.org

stoneengineering.be

Previous names

Next names

DNS History

10 records (6 active, 4 former)

●NSgarrett.ns.cloudflare.com2026-09-27 → 2026-10-02 · 2 obs

● 2026-09-27 00:13:04
● 2026-10-02 10:45:28

●NSjewel.ns.cloudflare.com2026-09-27 → 2026-10-02 · 2 obs

● 2026-09-27 00:13:04
● 2026-10-02 10:45:28

●A104.21.56.1592026-10-01 → 2026-10-02 · 3 obs

○ 2026-09-27 00:13:04
● 2026-10-01 22:55:20
● 2026-10-02 10:45:28

●A172.67.187.412026-10-01 → 2026-10-02 · 3 obs

○ 2026-09-27 00:13:04
● 2026-10-01 22:55:20
● 2026-10-02 10:45:28

○A188.114.96.02026-09-27 → 2026-09-27 · 3 obs

● 2026-09-27 00:13:04
○ 2026-10-01 22:55:20
○ 2026-10-02 10:45:28

○A188.114.97.02026-09-27 → 2026-09-27 · 3 obs

● 2026-09-27 00:13:04
○ 2026-10-01 22:55:20
○ 2026-10-02 10:45:28

●A2606:4700:3031::6815:389f2026-10-01 → 2026-10-02 · 3 obs

○ 2026-09-27 00:13:04
● 2026-10-01 22:55:20
● 2026-10-02 10:45:28

●A2606:4700:3037::ac43:bb292026-10-01 → 2026-10-02 · 3 obs

○ 2026-09-27 00:13:04
● 2026-10-01 22:55:20
● 2026-10-02 10:45:28

○A2a06:98c1:3120::42026-09-27 → 2026-09-27 · 3 obs

● 2026-09-27 00:13:04
○ 2026-10-01 22:55:20
○ 2026-10-02 10:45:28

○A2a06:98c1:3121::42026-09-27 → 2026-09-27 · 3 obs

● 2026-09-27 00:13:04
○ 2026-10-01 22:55:20
○ 2026-10-02 10:45:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
app	ns-tld2.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com...	-
engineeringnotes.app	garrett.ns.cloudflare.com, jewel.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.171

NS records: garrett.ns.cloudflare.com, jewel.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for engineeringnotes.app (unsigned zone)

⏱️ Timing

Total: 897ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.56.159, 172.67.187.41`
AAAA	2	`2606:4700:3037::ac43:bb29, 2606:4700:3031::6815:389f`
NS	2	`garrett.ns.cloudflare.com, jewel.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`garrett.ns.cloudflare.com dns.cloudflare`

Analysis

IP Addresses

engineeringnotes.app points to the four IP addresses 104.21.56.159, 172.67.187.41, 2606:4700:3031::6815:389f and 2606:4700:3037::ac43:bb29.

Additional host names — happyjokers.shop, iglacio.com, emon778lv.space and two others — share IP numbers with engineeringnotes.app.

Name Servers

Two name servers handle the delegation for engineeringnotes.app: garrett.ns.cloudflare.com and jewel.ns.cloudflare.com.

engineeringnotes.app shares its name server setup with other domains, including sweety-spinappbonus.eu, lovin80.pages.dev, outdoor-306-dgi.pages.dev and two others.

The name servers of engineeringnotes.app overlap at least partially with those of other domains — among them viserion-forgejo.pages.dev, restaurant-lepoissonavoile-anglet-fr.pages.dev, quoristaoverseas.in and two more.

The name servers demi.ns.cloudflare.com, colin.ns.cloudflare.com and amy.ns.cloudflare.com are commonly seen alongside these name servers.

Host names with 6 IP numbers:

garrett.ns.cloudflare.com resolves to 108.162.195.195, 162.159.44.195 and 172.64.35.195 among others, with 3 other IP addresses in total.

jewel.ns.cloudflare.com resolves to 108.162.194.171, 162.159.38.171 and 172.64.34.171 among others, with 3 other IP addresses in total.

engineeringnotes.app - robtex.com