calcstack.dev - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`calcstack.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:d53e^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::6815:1092^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.16.146^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.213.62^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`erin.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a71^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`erin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c071^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`erin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2071^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`erin.ns.cloudflare.com`
		A	108.162.192.113^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`erin.ns.cloudflare.com`
		A	172.64.32.113^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`erin.ns.cloudflare.com`
		A	173.245.58.113^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`erin.ns.cloudflare.com`
NS	`mike.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c3f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mike.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c33f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`mike.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:233f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`mike.ns.cloudflare.com`
		A	108.162.195.63^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mike.ns.cloudflare.com`
		A	162.159.44.63^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mike.ns.cloudflare.com`
		A	172.64.35.63^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mike.ns.cloudflare.com`
MX	`eforward1.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward2.registrar-servers.com` ⭐
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward3.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward4.registrar-servers.com`⁽¹⁵⁾
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward5.registrar-servers.com`⁽²⁰⁾
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
TXT	`google-site-verification=TPIET_QM5O4VeKCpvX_Ips67GSpgRi2ganU3T-1aJRM`
TXT	`v=spf1 include:spf.efwd.registrar-servers.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.16.146, 172.67.213.62
		IPv6 hints	2606:4700:3030::ac43:d53e, 2606:4700:3032::6815:1092
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=117, name=cloudflare-ech.com
SOA	`erin.ns.cloudflare.com`dns@cloudflare.com serial=2414188439

`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

calcstack.ai

calcstack.co

calcstack.pages.dev

calcstack.website

calcstack.dev

calcstack.co.uk

calcstack.io

calcstack.app

Similar names

stackcalc.pages.dev

stackcalc.app

stackcalc.com.br

stackcalc.com

stackcalc.io

Previous names

calcex.dev

calcforge.dev

calcgrid.dev

calchas.dev

calchub.dev

calcifer.dev

calcify.dev

calcina.dev

calcis.dev

calciumdoi.dev

calciumsulfat.dev

calckit.dev

calclab.dev

calclaro.dev

calco.dev

calcode.dev

calcodes.dev

calcote.dev

calcs.dev

calcsolver.dev

Next names

DNS History

15 records (11 active, 4 former)

●NSerin.ns.cloudflare.com2026-08-30 → 2026-09-23 · 2 obs

● 2026-08-30 05:14:30
● 2026-09-23 18:48:40

●NSmike.ns.cloudflare.com2026-08-30 → 2026-09-23 · 2 obs

● 2026-08-30 05:14:30
● 2026-09-23 18:48:40

●MXeforward1.registrar-servers.com2026-08-30 → 2026-09-23 · 2 obs

● 2026-08-30 05:14:30
● 2026-09-23 18:48:40

●MXeforward2.registrar-servers.com2026-08-30 → 2026-09-23 · 2 obs

● 2026-08-30 05:14:30
● 2026-09-23 18:48:40

●MXeforward3.registrar-servers.com2026-08-30 → 2026-09-23 · 2 obs

● 2026-08-30 05:14:30
● 2026-09-23 18:48:40

●MXeforward4.registrar-servers.com2026-08-30 → 2026-09-23 · 2 obs

● 2026-08-30 05:14:30
● 2026-09-23 18:48:40

●MXeforward5.registrar-servers.com2026-08-30 → 2026-09-23 · 2 obs

● 2026-08-30 05:14:30
● 2026-09-23 18:48:40

●A104.21.16.1462026-09-15 → 2026-09-23 · 3 obs

○ 2026-08-30 05:14:30
● 2026-09-15 18:54:36
● 2026-09-23 18:48:40

●A172.67.213.622026-09-15 → 2026-09-23 · 3 obs

○ 2026-08-30 05:14:30
● 2026-09-15 18:54:36
● 2026-09-23 18:48:40

○A188.114.96.02026-08-30 → 2026-08-30 · 3 obs

● 2026-08-30 05:14:30
○ 2026-09-15 18:54:36
○ 2026-09-23 18:48:40

○A188.114.97.02026-08-30 → 2026-08-30 · 3 obs

● 2026-08-30 05:14:30
○ 2026-09-15 18:54:36
○ 2026-09-23 18:48:40

●A2606:4700:3030::ac43:d53e2026-09-15 → 2026-09-23 · 3 obs

○ 2026-08-30 05:14:30
● 2026-09-15 18:54:36
● 2026-09-23 18:48:40

●A2606:4700:3032::6815:10922026-09-15 → 2026-09-23 · 3 obs

○ 2026-08-30 05:14:30
● 2026-09-15 18:54:36
● 2026-09-23 18:48:40

○A2a06:98c1:3120::2026-08-30 → 2026-08-30 · 3 obs

● 2026-08-30 05:14:30
○ 2026-09-15 18:54:36
○ 2026-09-23 18:48:40

○A2a06:98c1:3121::2026-08-30 → 2026-08-30 · 3 obs

● 2026-08-30 05:14:30
○ 2026-09-15 18:54:36
○ 2026-09-23 18:48:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld4.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...	-
calcstack.dev	erin.ns.cloudflare.com, mike.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.63

NS records: erin.ns.cloudflare.com, mike.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for calcstack.dev (unsigned zone)

⏱️ Timing

Total: 1016ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.16.146, 172.67.213.62`
AAAA	2	`2606:4700:3032::6815:1092, 2606:4700:3030::ac43:d53e`
NS	2	`erin.ns.cloudflare.com, mike.ns.cloudflare.com`
MX	5	`eforward1.registrar-servers.com (pri: 10, eforward2.registrar-servers.com (pri: 10...`
TXT	2	`google-site-verification=TPIET_QM5O4VeKC, v=spf1 include:spf.efwd.registrar-server`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`erin.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

calcstack.dev points to the four IP addresses 104.21.16.146, 172.67.213.62, 2606:4700:3030::ac43:d53e and 2606:4700:3032::6815:1092.

Among the host names that share IP numbers with calcstack.dev are karambacasino.kr, 88vb.pro, stepwith.me and two others.

Name Servers

calcstack.dev is served by two delegated name servers, erin.ns.cloudflare.com and mike.ns.cloudflare.com.

calcstack.dev has the same name server delegation as a number of other domains, such as c6-5xl.pages.dev, sahinaf405-20493-0-law.pages.dev, saqe.ca and two more.

The name servers of calcstack.dev overlap at least partially with those of other domains — among them pushnotifier.app, turboshinecleaner.shop, lowawerkschoenen.com and two more.

The name servers houston.ns.cloudflare.com, treasure.ns.cloudflare.com and ivan.ns.cloudflare.com are commonly seen alongside these name servers.

Host names resolving to 6 IP numbers:

erin.ns.cloudflare.com carries IP addresses 108.162.192.113, 172.64.32.113 and 173.245.58.113, with 3 other addresses beyond those.

mike.ns.cloudflare.com carries IP addresses 108.162.195.63, 162.159.44.63 and 172.64.35.63, with 3 other addresses beyond those.

Mail Servers

calcstack.dev has five mail servers, which are eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com and two others.

calcstack.dev shares at least some of its mail servers with other domains — for example orbitmedtech.com, boneu.co.uk, bukharideals.online and two more.

The mail servers eforward4.registrar-servers.com and eforward5.registrar-servers.com are commonly paired with these mail servers.

Hosts that resolve to one IP address:

eforward1.registrar-servers.com points to the IP address 162.255.118.51.

eforward2.registrar-servers.com points to the IP address 162.255.118.52.

eforward3.registrar-servers.com points to the IP address 162.255.118.51.

eforward4.registrar-servers.com points to the IP address 162.255.118.52.

eforward5.registrar-servers.com points to the IP address 162.255.118.51.

eforward1.registrar-servers.com, eforward3.registrar-servers.com and eforward5.registrar-servers.com all direct to 162.255.118.51.

These two host names — eforward2.registrar-servers.com and eforward4.registrar-servers.com — each point to 162.255.118.52 IP addresses.