`standard-deviation-calculator.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3036::6815:5429^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:ba16^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.84.41^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.186.22^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`clara.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26db^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clara.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2db^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`clara.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22db^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`clara.ns.cloudflare.com`
		A	108.162.194.219^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clara.ns.cloudflare.com`
		A	162.159.38.219^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clara.ns.cloudflare.com`
		A	172.64.34.219^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clara.ns.cloudflare.com`
NS	`igor.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b77^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c177^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`igor.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2177^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`igor.ns.cloudflare.com`
		A	108.162.193.119^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
		A	172.64.33.119^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
		A	173.245.59.119^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`igor.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.84.41, 172.67.186.22
		IPv6 hints	2606:4700:3036::6815:5429, 2606:4700:3037::ac43:ba16
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=205, name=cloudflare-ech.com
SOA	`clara.ns.cloudflare.com`dns@cloudflare.com serial=2399264201

`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=1775937127

Previously MX for

standard-deviation-calculator.com

Same first word

standard-deviation-calculator.com

DNS History

10 records (6 active, 4 former)

●NSclara.ns.cloudflare.com2026-02-17 → 2026-04-11 · 3 obs

○ 2018-05-09 14:15:58
● 2026-02-17 23:14:08
● 2026-04-11 20:05:34

●NSigor.ns.cloudflare.com2026-02-17 → 2026-04-11 · 3 obs

○ 2018-05-09 14:15:58
● 2026-02-17 23:14:08
● 2026-04-11 20:05:34

○NSns100.eleven2.com2018-05-09 → 2018-05-09 · 3 obs

● 2018-05-09 14:15:58
○ 2026-02-17 23:14:08
○ 2026-04-11 20:05:34

○NSns101.eleven2.com2018-05-09 → 2018-05-09 · 3 obs

● 2018-05-09 14:15:58
○ 2026-02-17 23:14:08
○ 2026-04-11 20:05:34

○MXstandard-deviation-calculator.com2018-05-09 → 2018-05-09 · 3 obs

● 2018-05-09 14:15:58
○ 2026-02-17 23:14:08
○ 2026-04-11 20:05:34

●A104.21.84.412026-02-17 → 2026-04-11 · 3 obs

○ 2018-05-09 14:15:58
● 2026-02-17 23:14:08
● 2026-04-11 20:05:34

○A162.219.248.1032018-05-09 → 2018-05-09 · 3 obs

● 2018-05-09 14:15:58
○ 2026-02-17 23:14:08
○ 2026-04-11 20:05:34

●A172.67.186.222026-02-17 → 2026-04-11 · 3 obs

○ 2018-05-09 14:15:58
● 2026-02-17 23:14:08
● 2026-04-11 20:05:34

●A2606:4700:3036::6815:54292026-02-17 → 2026-04-11 · 3 obs

○ 2018-05-09 14:15:58
● 2026-02-17 23:14:08
● 2026-04-11 20:05:34

●A2606:4700:3037::ac43:ba162026-02-17 → 2026-04-11 · 3 obs

○ 2018-05-09 14:15:58
● 2026-02-17 23:14:08
● 2026-04-11 20:05:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
standard-deviation-calculator.com	igor.ns.cloudflare.com, clara.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.119

NS records: igor.ns.cloudflare.com, clara.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for standard-deviation-calculator.com (unsigned zone)

⏱️ Timing

Total: 111ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.84.41, 172.67.186.22`
AAAA	2	`2606:4700:3037::ac43:ba16, 2606:4700:3036::6815:5429`
NS	2	`clara.ns.cloudflare.com, igor.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`clara.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

standard-deviation-calculator.com maps to four IP numbers: 2606:4700:3036::6815:5429, 2606:4700:3037::ac43:ba16, 104.21.84.41 and 172.67.186.22.

Other host names, for instance mestredaputaria.com, buynow.plus, fhgh.com.cn, atlastrove.com and xwmgm.com share IP numbers with standard-deviation-calculator.com.

Name Servers

Two name servers clara.ns.cloudflare.com and igor.ns.cloudflare.com are delegated to standard-deviation-calculator.com.

standard-deviation-calculator.com uses the same name server configuration as other domains, such as datamining.tw, popecountdown.com, amata.ws, thepiratebay.cr and cphonlinecounselling.sg.

standard-deviation-calculator.com at least partially shares name servers with other domains such as rorycollins.org, pushcreative.tv, lemerlus.com, bookmore.com and madisonminiwarehouses.com.

These name servers are commonly used with eva.ns.cloudflare.com and cory.ns.cloudflare.com.

Host names with six IP numbers: Host name clara.ns.cloudflare.com points to 2606:4700:50::a29f:26db, 2803:f800:50::6ca2:c2db, 2a06:98c1:50::ac40:22db, 108.162.194.219, 162.159.38.219 and 172.64.34.219; host name igor.ns.cloudflare.com points to 2606:4700:58::adf5:3b77, 2803:f800:50::6ca2:c177, 2a06:98c1:50::ac40:2177, 108.162.193.119, 172.64.33.119 and 173.245.59.119.

standard-deviation-calculator.com - robtex.com