`sleepcalculation.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:cbd2^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:5ab8^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.90.184^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.203.210^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ariella.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2620^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ariella.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c220^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ariella.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2220^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ariella.ns.cloudflare.com`
		A	108.162.194.32^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ariella.ns.cloudflare.com`
		A	162.159.38.32^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ariella.ns.cloudflare.com`
		A	172.64.34.32^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ariella.ns.cloudflare.com`
NS	`yichun.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bf8^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yichun.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1f8^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`yichun.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21f8^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`yichun.ns.cloudflare.com`
		A	108.162.193.248^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yichun.ns.cloudflare.com`
		A	172.64.33.248^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yichun.ns.cloudflare.com`
		A	173.245.59.248^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yichun.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.90.184, 172.67.203.210
		IPv6 hints	2606:4700:3031::ac43:cbd2, 2606:4700:3035::6815:5ab8
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=124, name=cloudflare-ech.com
SOA	`ariella.ns.cloudflare.com`dns@cloudflare.com serial=2401639167

`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=1776378922

Previously MX for

sleepcalculation.com

Same first word

sleepcalculation.com

Similar names

scalpelinoculate.com

DNS History

17 records (6 active, 11 former)

●NSariella.ns.cloudflare.com2026-04-16 → 2026-04-16 · 2 obs

○ 2026-03-13 00:07:20
● 2026-04-16 23:03:24

○NSdns101.registrar-servers.com2026-03-11 → 2026-03-13 · 4 obs

○ 2026-02-19 10:42:36
● 2026-03-11 16:21:52
● 2026-03-13 00:07:20
○ 2026-04-16 23:03:24

○NSdns102.registrar-servers.com2026-03-11 → 2026-03-13 · 4 obs

○ 2026-02-19 10:42:36
● 2026-03-11 16:21:52
● 2026-03-13 00:07:20
○ 2026-04-16 23:03:24

○NSns1.symbolhost.com2026-02-19 → 2026-02-19 · 3 obs

● 2026-02-19 10:42:36
○ 2026-03-11 16:21:52
○ 2026-04-16 23:03:24

○NSns2.symbolhost.com2026-02-19 → 2026-02-19 · 3 obs

● 2026-02-19 10:42:36
○ 2026-03-11 16:21:52
○ 2026-04-16 23:03:24

○NSns3.symbolhost.com2026-02-19 → 2026-02-19 · 3 obs

● 2026-02-19 10:42:36
○ 2026-03-11 16:21:52
○ 2026-04-16 23:03:24

○NSns4.symbolhost.com2026-02-19 → 2026-02-19 · 3 obs

● 2026-02-19 10:42:36
○ 2026-03-11 16:21:52
○ 2026-04-16 23:03:24

●NSyichun.ns.cloudflare.com2026-04-16 → 2026-04-16 · 2 obs

○ 2026-03-13 00:07:20
● 2026-04-16 23:03:24

○MXmx.plingest.com2026-03-11 → 2026-03-13 · 4 obs

○ 2026-02-19 10:42:36
● 2026-03-11 16:21:52
● 2026-03-13 00:07:20
○ 2026-04-16 23:03:24

○MXsleepcalculation.com2026-02-19 → 2026-02-19 · 3 obs

● 2026-02-19 10:42:36
○ 2026-03-11 16:21:52
○ 2026-04-16 23:03:24

●A104.21.90.1842026-04-16 → 2026-04-16 · 2 obs

○ 2026-03-13 00:07:20
● 2026-04-16 23:03:24

○A162.19.58.1742026-02-19 → 2026-02-19 · 3 obs

● 2026-02-19 10:42:36
○ 2026-03-11 16:21:52
○ 2026-04-16 23:03:24

○A172.234.24.2112026-03-11 → 2026-03-13 · 4 obs

○ 2026-02-19 10:42:36
● 2026-03-11 16:21:52
● 2026-03-13 00:07:20
○ 2026-04-16 23:03:24

○A172.239.57.1172026-03-11 → 2026-03-13 · 4 obs

○ 2026-02-19 10:42:36
● 2026-03-11 16:21:52
● 2026-03-13 00:07:20
○ 2026-04-16 23:03:24

●A172.67.203.2102026-04-16 → 2026-04-16 · 2 obs

○ 2026-03-13 00:07:20
● 2026-04-16 23:03:24

●A2606:4700:3031::ac43:cbd22026-04-16 → 2026-04-16 · 2 obs

○ 2026-03-13 00:07:20
● 2026-04-16 23:03:24

●A2606:4700:3035::6815:5ab82026-04-16 → 2026-04-16 · 2 obs

○ 2026-03-13 00:07:20
● 2026-04-16 23:03:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
sleepcalculation.com	yichun.ns.cloudflare.com, ariella.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.32

NS records: yichun.ns.cloudflare.com, ariella.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sleepcalculation.com (unsigned zone)

⏱️ Timing

Total: 109ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.90.184, 172.67.203.210`
AAAA	2	`2606:4700:3035::6815:5ab8, 2606:4700:3031::ac43:cbd2`
NS	2	`ariella.ns.cloudflare.com, yichun.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ariella.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

sleepcalculation.com maps to four IP numbers: 2606:4700:3031::ac43:cbd2, 2606:4700:3035::6815:5ab8, 104.21.90.184 and 172.67.203.210.

Other host names, for instance in-nw.net, ambedkarmission.org, www.unidrain.de, thumbnail.vidstream.pw and lft-online.de share IP numbers with sleepcalculation.com.

Name Servers

Two name servers ariella.ns.cloudflare.com and yichun.ns.cloudflare.com handle delegation for sleepcalculation.com.

sleepcalculation.com uses the same name server setup as other domains, for example returnpolicybuzz.com, theinvestmentsharks.com, arkansassportsstore.com, jdcaster.com and millhousesteakhouse.com.

sleepcalculation.com partially shares name servers with other domains; examples include lirtal.com, melioravexis.com, mediamandi.com, onviamen.com and kelolahr.id.

These name servers are commonly used with langston.ns.cloudflare.com, damien.ns.cloudflare.com and zita.ns.cloudflare.com.

Host names with six IP numbers: ariella.ns.cloudflare.com points to: 2606:4700:50::a29f:2620, 2803:f800:50::6ca2:c220, 2a06:98c1:50::ac40:2220, 108.162.194.32, 162.159.38.32 and 172.64.34.32; yichun.ns.cloudflare.com points to: 2606:4700:58::adf5:3bf8, 2803:f800:50::6ca2:c1f8, 2a06:98c1:50::ac40:21f8, 108.162.193.248, 172.64.33.248 and 173.245.59.248.

sleepcalculation.com - robtex.com