engineercalcs.com - dns.ninja

`engineercalcs.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:ca90^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:450a^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.69.10^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.202.144^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`lex.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bc4^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lex.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1c4^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lex.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21c4^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lex.ns.cloudflare.com`
		A	108.162.193.196^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lex.ns.cloudflare.com`
		A	172.64.33.196^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lex.ns.cloudflare.com`
		A	173.245.59.196^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lex.ns.cloudflare.com`
NS	`susan.ns.cloudflare.com`
		A	2606:4700:50::a29f:26c7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`susan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2c7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`susan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22c7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`susan.ns.cloudflare.com`
		A	108.162.194.199^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`susan.ns.cloudflare.com`
		A	162.159.38.199^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`susan.ns.cloudflare.com`
		A	172.64.34.199^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`susan.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.69.10, 172.67.202.144
		IPv6 hints	2606:4700:3033::ac43:ca90, 2606:4700:3037::6815:450a
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=133, name=cloudflare-ech.com
SOA	`lex.ns.cloudflare.com`dns@cloudflare.com serial=2404575179

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1782574695

Same first word

engineercalcs.com

DNS History

22 records (6 active, 16 former)

○NSedna.ns.cloudflare.com2017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 02:25:58
○ 2026-02-15 14:53:58
○ 2026-06-27 16:01:16

○NSeric.ns.cloudflare.com2017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 02:25:58
○ 2026-02-15 14:53:58
○ 2026-06-27 16:01:16

●NSlex.ns.cloudflare.com2026-02-15 → 2026-06-27 · 3 obs

○ 2017-08-10 02:25:58
● 2026-02-15 14:53:58
● 2026-06-27 16:01:16

●NSsusan.ns.cloudflare.com2026-02-15 → 2026-06-27 · 3 obs

○ 2017-08-10 02:25:58
● 2026-02-15 14:53:58
● 2026-06-27 16:01:16

○A104.18.42.2492017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 02:25:58
○ 2026-02-15 14:53:58
○ 2026-06-27 16:01:16

○A104.18.43.2492017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 02:25:58
○ 2026-02-15 14:53:58
○ 2026-06-27 16:01:16

●A104.21.69.102026-02-15 → 2026-06-27 · 17 obs

○ 2017-08-10 02:25:58
● 2026-02-15 14:53:58
● 2026-04-16 22:43:32
○ 2026-04-19 19:06:44
● 2026-04-25 01:08:06
● 2026-06-01 02:22:48
○ 2026-06-02 16:29:00
● 2026-06-03 23:26:00
○ 2026-06-04 11:51:12
○ 2026-06-06 13:42:04
● 2026-06-06 14:20:18
○ 2026-06-06 22:19:14
○ 2026-06-13 17:31:06
● 2026-06-17 19:40:48
○ 2026-06-23 13:35:12
● 2026-06-26 13:52:58
● 2026-06-27 16:01:16

●A172.67.202.1442026-02-15 → 2026-06-27 · 17 obs

○A188.114.96.02026-04-19 → 2026-06-24 · 17 obs

○ 2026-04-16 22:43:32
● 2026-04-19 19:06:44
○ 2026-04-25 01:08:06
○ 2026-06-01 02:22:48
● 2026-06-02 16:29:00
○ 2026-06-03 23:26:00
● 2026-06-04 11:51:12
● 2026-06-06 13:42:04
○ 2026-06-06 14:20:18
● 2026-06-06 22:19:14
● 2026-06-13 17:31:06
○ 2026-06-17 19:40:48
● 2026-06-23 13:35:12
○ 2026-06-24 06:17:20
● 2026-06-24 07:17:30
○ 2026-06-26 13:52:58
○ 2026-06-27 16:01:16

○A188.114.96.42026-06-24 → 2026-06-24 · 4 obs

○ 2026-06-23 13:35:12
● 2026-06-24 06:17:20
○ 2026-06-24 07:17:30
○ 2026-06-27 16:01:16

○A188.114.97.02026-04-19 → 2026-06-24 · 17 obs

○A188.114.97.42026-06-24 → 2026-06-24 · 4 obs

○ 2026-06-23 13:35:12
● 2026-06-24 06:17:20
○ 2026-06-24 07:17:30
○ 2026-06-27 16:01:16

○A2400:cb00:2048:1::6812:2af92017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 02:25:58
○ 2026-02-15 14:53:58
○ 2026-06-27 16:01:16

○A2400:cb00:2048:1::6812:2bf92017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 02:25:58
○ 2026-02-15 14:53:58
○ 2026-06-27 16:01:16

○A2606:4700:3030::ac43:ca902026-02-15 → 2026-06-26 · 18 obs

●A2606:4700:3033::ac43:ca902026-06-27 → 2026-06-27 · 3 obs

○ 2026-06-26 13:52:58
● 2026-06-27 16:01:14
● 2026-06-27 16:01:16

○A2606:4700:3036::6815:450a2026-02-15 → 2026-06-26 · 18 obs

●A2606:4700:3037::6815:450a2026-06-27 → 2026-06-27 · 3 obs

○ 2026-06-26 13:52:58
● 2026-06-27 16:01:14
● 2026-06-27 16:01:16

○A2a06:98c1:3120::2026-04-19 → 2026-06-24 · 17 obs

○A2a06:98c1:3120::42026-06-24 → 2026-06-24 · 4 obs

○ 2026-06-23 13:35:12
● 2026-06-24 06:17:20
○ 2026-06-24 07:17:30
○ 2026-06-27 16:01:16

○A2a06:98c1:3121::2026-04-19 → 2026-06-24 · 17 obs

○A2a06:98c1:3121::42026-06-24 → 2026-06-24 · 4 obs

○ 2026-06-23 13:35:12
● 2026-06-24 06:17:20
○ 2026-06-24 07:17:30
○ 2026-06-27 16:01:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
engineercalcs.com	lex.ns.cloudflare.com, susan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.196

NS records: lex.ns.cloudflare.com, susan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for engineercalcs.com (unsigned zone)

⏱️ Timing

Total: 166ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.202.144, 104.21.69.10`
AAAA	2	`2606:4700:3033::ac43:ca90, 2606:4700:3037::6815:450a`
NS	2	`lex.ns.cloudflare.com, susan.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`lex.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (lex.ns.cloudflare.com, lex.ns.cloudflare.com, lex.ns.cloudflare.com...)

Analysis

IP Addresses

engineercalcs.com points to the four IP addresses 104.21.69.10, 172.67.202.144, 2606:4700:3033::ac43:ca90 and 2606:4700:3037::6815:450a.

Two other host names, along with puretravel.com.au, yildizgomlek.com.tr and mail.notanotherbrittany.com, also share IP numbers with engineercalcs.com.

Name Servers

DNS delegation for engineercalcs.com points to two name servers: lex.ns.cloudflare.com and susan.ns.cloudflare.com.

engineercalcs.com shares its NS records with other domains, for example msc.co.ug, biogas.eco.br, ansonlohonting-intlfanclub.com and two others.

There is at least partial name server overlap between engineercalcs.com and other domains — charlottesnailspa.co.uk, aligedgam.com, 629qq.com and two more among them.

These name servers tend to appear in combination with the name servers erin.ns.cloudflare.com, damon.ns.cloudflare.com, denver.ns.cloudflare.com and noel.ns.cloudflare.com.

DNS names with 6 IP addresses:

lex.ns.cloudflare.com has IP addresses 108.162.193.196, 172.64.33.196 and 173.245.59.196, plus 3 other.

susan.ns.cloudflare.com has IP addresses 108.162.194.199, 162.159.38.199 and 172.64.34.199, plus 3 other.