`engineeringbooks.me`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:1db7^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:9599^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.29.183^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.149.153^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`amir.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b3e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amir.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c13e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`amir.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:213e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`amir.ns.cloudflare.com`
		A	108.162.193.62^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amir.ns.cloudflare.com`
		A	172.64.33.62^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amir.ns.cloudflare.com`
		A	173.245.59.62^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amir.ns.cloudflare.com`
NS	`vita.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aee^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vita.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0ee^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`vita.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20ee^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`vita.ns.cloudflare.com`
		A	108.162.192.238^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vita.ns.cloudflare.com`
		A	172.64.32.238^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vita.ns.cloudflare.com`
		A	173.245.58.238^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vita.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.29.183, 172.67.149.153
		IPv6	2606:4700:3030::6815:1db7, 2606:4700:3037::ac43:9599
SOA	`amir.ns.cloudflare.com`dns@cloudflare.com serial=2397642454

`me`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.me` ⭐ 🔒
	NS	`a2.nic.me` 🔒
	NS	`b0.nic.me` 🔒
	NS	`b2.nic.me` 🔒
	NS	`c0.nic.me` 🔒
	SOA	`a0.nic.me`hostmaster@donuts.email serial=1771290442

Same first word

engineeringbooks.me

DNS History

14 records (6 active, 8 former)

●NSamir.ns.cloudflare.com2026-02-18 → 2026-02-28 · 3 obs

○ 2017-09-06 20:14:08
● 2026-02-18 06:40:52
● 2026-02-28 16:32:38

○NSdns1.registrar-servers.com2017-09-06 → 2017-09-06 · 3 obs

● 2017-09-06 20:14:08
○ 2026-02-18 06:40:52
○ 2026-02-28 16:32:38

○NSdns2.registrar-servers.com2017-09-06 → 2017-09-06 · 3 obs

● 2017-09-06 20:14:08
○ 2026-02-18 06:40:52
○ 2026-02-28 16:32:38

●NSvita.ns.cloudflare.com2026-02-18 → 2026-02-28 · 3 obs

○ 2017-09-06 20:14:08
● 2026-02-18 06:40:52
● 2026-02-28 16:32:38

○MXmx1.privateemail.com2017-09-06 → 2017-09-06 · 3 obs

● 2017-09-06 20:14:08
○ 2026-02-18 06:40:52
○ 2026-02-28 16:32:38

○MXmx2.privateemail.com2017-09-06 → 2017-09-06 · 3 obs

● 2017-09-06 20:14:08
○ 2026-02-18 06:40:52
○ 2026-02-28 16:32:38

●A104.21.29.1832026-02-18 → 2026-02-28 · 3 obs

○ 2017-09-06 20:14:08
● 2026-02-18 06:40:52
● 2026-02-28 16:32:38

●A172.67.149.1532026-02-18 → 2026-02-28 · 3 obs

○ 2017-09-06 20:14:08
● 2026-02-18 06:40:52
● 2026-02-28 16:32:38

○A216.239.32.212017-09-06 → 2017-09-06 · 3 obs

● 2017-09-06 20:14:08
○ 2026-02-18 06:40:52
○ 2026-02-28 16:32:38

○A216.239.34.212017-09-06 → 2017-09-06 · 3 obs

● 2017-09-06 20:14:08
○ 2026-02-18 06:40:52
○ 2026-02-28 16:32:38

○A216.239.36.212017-09-06 → 2017-09-06 · 3 obs

● 2017-09-06 20:14:08
○ 2026-02-18 06:40:52
○ 2026-02-28 16:32:38

○A216.239.38.212017-09-06 → 2017-09-06 · 3 obs

● 2017-09-06 20:14:08
○ 2026-02-18 06:40:52
○ 2026-02-28 16:32:38

●A2606:4700:3030::6815:1db72026-02-18 → 2026-02-28 · 3 obs

○ 2017-09-06 20:14:08
● 2026-02-18 06:40:52
● 2026-02-28 16:32:38

●A2606:4700:3037::ac43:95992026-02-18 → 2026-02-28 · 3 obs

○ 2017-09-06 20:14:08
● 2026-02-18 06:40:52
● 2026-02-28 16:32:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
me	a0.nic.me, a2.nic.me, b0.nic.me, b2.nic.me...	-
engineeringbooks.me	amir.ns.cloudflare.com, vita.ns.cloudflare.com	-

✅ Authoritative Response

Server: 172.64.32.238

NS records: amir.ns.cloudflare.com, vita.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for engineeringbooks.me (unsigned zone)

⏱️ Timing

Total: 376ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.149.153, 104.21.29.183`
AAAA	2	`2606:4700:3030::6815:1db7, 2606:4700:3037::ac43:9599`
NS	2	`amir.ns.cloudflare.com, vita.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`amir.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

engineeringbooks.me resolves to four IPs: 2606:4700:3030::6815:1db7, 2606:4700:3037::ac43:9599, 104.21.29.183 and 172.67.149.153.

Other host names such as mail.pene.co.uk, pharmacie-pharmaforce.be, e-xoopsfr.com, japanmarketpartner.com and www.empay.org share IP numbers with engineeringbooks.me.

Name Servers

engineeringbooks.me is delegated to two name servers: amir.ns.cloudflare.com and vita.ns.cloudflare.com.

engineeringbooks.me uses the same name server setup as other domains, including pastabellaseattle.com, rijksoverheid.net, kasooku.com, acculenders.com and sieuthicafe.vn.

At least part of the name servers for engineeringbooks.me are shared with other domains, for instance nutcloud.org, mountainmedia.com, ghaziabadpolice.com, vim.fi and haitimcc.org.

These name servers are commonly used alongside the name servers igor.ns.cloudflare.com.

Host names with six IP numbers:

amir.ns.cloudflare.com points to: 2606:4700:58::adf5:3b3e, 2803:f800:50::6ca2:c13e, 2a06:98c1:50::ac40:213e, 108.162.193.62, 172.64.33.62 and 173.245.59.62.

vita.ns.cloudflare.com points to: 2606:4700:50::adf5:3aee, 2803:f800:50::6ca2:c0ee, 2a06:98c1:50::ac40:20ee, 108.162.192.238, 172.64.32.238 and 173.245.58.238.

engineeringbooks.me - robtex.com