critsci.com - dns.ninja

`critsci.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:afb1^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:3810^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.56.16^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.175.177^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ace.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c41^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ace.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c341^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ace.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2341^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ace.ns.cloudflare.com`
		A	108.162.195.65^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ace.ns.cloudflare.com`
		A	162.159.44.65^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ace.ns.cloudflare.com`
		A	172.64.35.65^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ace.ns.cloudflare.com`
NS	`laura.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ab7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`laura.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0b7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`laura.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20b7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`laura.ns.cloudflare.com`
		A	108.162.192.183^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`laura.ns.cloudflare.com`
		A	172.64.32.183^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`laura.ns.cloudflare.com`
		A	173.245.58.183^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`laura.ns.cloudflare.com`
MX	`critsci-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c803::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn1pr21cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:c902::16^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-byapr04cu00306.inbound.protection.outlook.com`
		A	2a01:111:f403:c92c::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-dm2pr04cu00102.inbound.protection.outlook.com`
		A	2a01:111:f403:f908::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn8pr05cu00102.inbound.protection.outlook.com`
		A	52.101.9.26^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl0pr02cu00702.inbound.protection.outlook.com`
		A	52.101.10.10^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn8pr05cu00102.inbound.protection.outlook.com`
		A	52.101.10.14^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn6pr04cu00206.inbound.protection.outlook.com`
		A	52.101.10.16^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn6pr21cu00500.inbound.protection.outlook.com`
TXT	`1password-site-verification=PQBOJSZXPZALFGWKA6M2UJZPSI`
TXT	`amazon-business-verification=d2a9e6085abd4fc5bc5e7af27293168a9ec602d94f7d4332...`
TXT	`anthropic-domain-verification-h3gzn4=OuIhaRQ2TRR829a29BHjYmOOz`
TXT	`apple-domain-verification=2KcXjjCDpFomZPi6`
TXT	`autodesk-domain-verification=6DkAiSktKpxyWupWQ_yZ`
TXT	`cloudflare_dashboard_sso=ccc79f7338a8c95c245d992dd1322a5f`
TXT	`dropbox-domain-verification=9dmv1qndoii5`
TXT	`google-site-verification=Drrsa-xKgmwGGVuSKHEneOXTnjE2K805lJK1HhBRFDg`
TXT	`v=spf1 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com includ...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.56.16, 172.67.175.177
		IPv6 hints	2606:4700:3032::ac43:afb1, 2606:4700:3035::6815:3810
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=79, name=cloudflare-ech.com
SOA	`ace.ns.cloudflare.com`dns@cloudflare.com serial=2411535261

`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=1786067734

🔒 HSTS Preload (+subdomains)

Same first word

critsci.com

critsci.net

critsci.org

Similar names

cristic.com

sictric.com

critics.ca

critics.org

critics.com.au

critics.ch

cristic.ro

critics.ru

DNS History

14 records (7 active, 7 former)

●NSace.ns.cloudflare.com2026-08-07 → 2026-08-07 · 2 obs

○ 2026-03-26 10:38:42
● 2026-08-07 02:09:50

●NSlaura.ns.cloudflare.com2026-08-07 → 2026-08-07 · 2 obs

○ 2026-03-26 10:38:42
● 2026-08-07 02:09:50

○NSns83.worldnic.com2016-12-13 → 2026-03-26 · 3 obs

● 2016-12-13 06:20:06
● 2026-03-26 10:38:42
○ 2026-08-07 02:09:50

○NSns84.worldnic.com2016-12-13 → 2026-03-26 · 3 obs

● 2016-12-13 06:20:06
● 2026-03-26 10:38:42
○ 2026-08-07 02:09:50

●MXcritsci-com.mail.protection.outlook.com2016-12-13 → 2026-08-07 · 2 obs

● 2016-12-13 06:20:06
● 2026-08-07 02:09:50

●A104.21.56.162026-08-07 → 2026-08-07 · 2 obs

○ 2026-03-26 10:38:42
● 2026-08-07 02:09:50

●A172.67.175.1772026-08-07 → 2026-08-07 · 2 obs

○ 2026-03-26 10:38:42
● 2026-08-07 02:09:50

○A198.185.159.1442026-02-26 → 2026-03-26 · 4 obs

○ 2016-12-13 06:20:06
● 2026-02-26 03:19:58
● 2026-03-26 10:38:42
○ 2026-08-07 02:09:50

○A198.185.159.1452026-02-26 → 2026-03-26 · 4 obs

○ 2016-12-13 06:20:06
● 2026-02-26 03:19:58
● 2026-03-26 10:38:42
○ 2026-08-07 02:09:50

○A198.49.23.1442026-02-26 → 2026-03-26 · 4 obs

○ 2016-12-13 06:20:06
● 2026-02-26 03:19:58
● 2026-03-26 10:38:42
○ 2026-08-07 02:09:50

○A198.49.23.1452026-02-26 → 2026-03-26 · 4 obs

○ 2016-12-13 06:20:06
● 2026-02-26 03:19:58
● 2026-03-26 10:38:42
○ 2026-08-07 02:09:50

○A208.91.197.272016-12-13 → 2016-12-13 · 3 obs

● 2016-12-13 06:20:06
○ 2026-02-26 03:19:58
○ 2026-08-07 02:09:50

●A2606:4700:3032::ac43:afb12026-08-07 → 2026-08-07 · 2 obs

○ 2026-03-26 10:38:42
● 2026-08-07 02:09:50

●A2606:4700:3035::6815:38102026-08-07 → 2026-08-07 · 2 obs

○ 2026-03-26 10:38:42
● 2026-08-07 02:09:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
critsci.com	laura.ns.cloudflare.com, ace.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.183

NS records: laura.ns.cloudflare.com, ace.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 160ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.56.16, 172.67.175.177`
AAAA	2	`2606:4700:3035::6815:3810, 2606:4700:3032::ac43:afb1`
NS	2	`ace.ns.cloudflare.com, laura.ns.cloudflare.com`
MX	1	`critsci-com.mail.protection.outlook.com`
TXT	9	`1password-site-verification=PQBOJSZXPZAL, amazon-business-verification=d2a9e6085ab...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ace.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

critsci.com directs to four IP numbers, which are 104.21.56.16, 172.67.175.177, 2606:4700:3032::ac43:afb1 and 2606:4700:3035::6815:3810.

dralithenovo.com, hidengalleries.net, casino-mg2.buzz and two other host names share IP numbers with critsci.com.

Name Servers

DNS delegation for critsci.com points to two name servers: ace.ns.cloudflare.com and laura.ns.cloudflare.com.

critsci.com uses the same name servers as several other domains — among them 5x0.com, learnenglish1-2-1.com, pushtolearn.com and two more.

At least some of critsci.com's name servers are shared with other domains, for example masuk-nilam189.pages.dev, ometro.sa.com, howtouselinux.com and two more.

It is common to find these name servers alongside the name servers augustus.ns.cloudflare.com, paislee.ns.cloudflare.com, violet.ns.cloudflare.com and two others.

Hostnames that resolve to 6 IP addresses:

ace.ns.cloudflare.com has IP addresses 108.162.195.65, 162.159.44.65 and 172.64.35.65, plus 3 other.

laura.ns.cloudflare.com has IP addresses 108.162.192.183, 172.64.32.183 and 173.245.58.183, plus 3 other.

Mail Servers

Mail for critsci.com is handled by a single mail server, critsci-com.mail.protection.outlook.com.

critsci-com.mail.protection.outlook.com resolves to 8 IP addresses — 52.101.9.26, 52.101.10.10, 52.101.10.14 and 5 others.