`scienceandus.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:32b7^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:d00c^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.50.183^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.208.12^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`roman.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c67^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roman.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c367^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`roman.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2367^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`roman.ns.cloudflare.com`
		A	108.162.195.103^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roman.ns.cloudflare.com`
		A	162.159.44.103^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roman.ns.cloudflare.com`
		A	172.64.35.103^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roman.ns.cloudflare.com`
NS	`selah.ns.cloudflare.com`
		A	2606:4700:50::a29f:2615^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`selah.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c215^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`selah.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2215^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`selah.ns.cloudflare.com`
		A	108.162.194.21^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`selah.ns.cloudflare.com`
		A	162.159.38.21^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`selah.ns.cloudflare.com`
		A	172.64.34.21^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`selah.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.50.183, 172.67.208.12
		IPv6 hints	2606:4700:3030::6815:32b7, 2606:4700:3037::ac43:d00c
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=12, name=cloudflare-ech.com
SOA	`roman.ns.cloudflare.com`dns@cloudflare.com serial=2410706877

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1785245569

rank #262024 globally
rank #20750 in the tld

Same first word

scienceandus.org

DNS History

24 records (6 active, 18 former)

○NSdns1.registrar-servers.com2018-09-28 → 2018-09-28 · 3 obs

● 2018-09-28 22:18:36
○ 2026-04-09 19:08:08
○ 2026-07-28 13:48:02

○NSdns2.registrar-servers.com2018-09-28 → 2018-09-28 · 3 obs

● 2018-09-28 22:18:36
○ 2026-04-09 19:08:08
○ 2026-07-28 13:48:02

●NSroman.ns.cloudflare.com2026-04-09 → 2026-07-28 · 3 obs

○ 2018-09-28 22:18:36
● 2026-04-09 19:08:08
● 2026-07-28 13:48:02

●NSselah.ns.cloudflare.com2026-04-09 → 2026-07-28 · 3 obs

○ 2018-09-28 22:18:36
● 2026-04-09 19:08:08
● 2026-07-28 13:48:02

○MXalt1.aspmx.l.google.com2018-09-28 → 2018-09-28 · 3 obs

● 2018-09-28 22:18:36
○ 2026-04-09 19:08:08
○ 2026-07-28 13:48:02

○MXalt2.aspmx.l.google.com2018-09-28 → 2018-09-28 · 3 obs

● 2018-09-28 22:18:36
○ 2026-04-09 19:08:08
○ 2026-07-28 13:48:02

○MXalt3.aspmx.l.google.com2018-09-28 → 2018-09-28 · 3 obs

● 2018-09-28 22:18:36
○ 2026-04-09 19:08:08
○ 2026-07-28 13:48:02

○MXalt4.aspmx.l.google.com2018-09-28 → 2018-09-28 · 3 obs

● 2018-09-28 22:18:36
○ 2026-04-09 19:08:08
○ 2026-07-28 13:48:02

○MXaspmx.l.google.com2018-09-28 → 2018-09-28 · 3 obs

● 2018-09-28 22:18:36
○ 2026-04-09 19:08:08
○ 2026-07-28 13:48:02

●A104.21.50.1832026-07-10 → 2026-07-28 · 3 obs

○ 2026-06-24 20:16:14
● 2026-07-10 17:59:50
● 2026-07-28 13:48:02

○A104.21.79.1242026-04-09 → 2026-04-09 · 4 obs

○ 2018-09-28 22:18:36
● 2026-04-09 19:08:08
○ 2026-07-10 17:59:50
○ 2026-07-28 13:48:02

○A162.255.119.202018-09-28 → 2018-09-28 · 3 obs

● 2018-09-28 22:18:36
○ 2026-04-09 19:08:08
○ 2026-07-28 13:48:02

○A172.67.145.1622026-04-09 → 2026-04-09 · 4 obs

○ 2018-09-28 22:18:36
● 2026-04-09 19:08:08
○ 2026-07-10 17:59:50
○ 2026-07-28 13:48:02

●A172.67.208.122026-07-10 → 2026-07-28 · 3 obs

○ 2026-06-24 20:16:14
● 2026-07-10 17:59:50
● 2026-07-28 13:48:02

○A185.199.108.1532018-09-28 → 2018-09-28 · 3 obs

● 2018-09-28 22:18:36
○ 2026-04-09 19:08:08
○ 2026-07-28 13:48:02

○A185.199.109.1532018-09-28 → 2018-09-28 · 3 obs

● 2018-09-28 22:18:36
○ 2026-04-09 19:08:08
○ 2026-07-28 13:48:02

○A185.199.110.1532018-09-28 → 2018-09-28 · 3 obs

● 2018-09-28 22:18:36
○ 2026-04-09 19:08:08
○ 2026-07-28 13:48:02

○A185.199.111.1532018-09-28 → 2018-09-28 · 3 obs

● 2018-09-28 22:18:36
○ 2026-04-09 19:08:08
○ 2026-07-28 13:48:02

●A2606:4700:3030::6815:32b72026-07-10 → 2026-07-28 · 3 obs

○ 2026-06-24 20:16:14
● 2026-07-10 17:59:50
● 2026-07-28 13:48:02

○A2606:4700:3031::ac43:91a22026-06-24 → 2026-06-24 · 4 obs

○ 2026-05-21 14:45:52
● 2026-06-24 20:16:14
○ 2026-07-10 17:59:50
○ 2026-07-28 13:48:02

○A2606:4700:3033::ac43:91a22026-04-09 → 2026-05-21 · 5 obs

○ 2018-09-28 22:18:36
● 2026-04-09 19:08:08
● 2026-05-21 14:45:52
○ 2026-06-24 20:16:14
○ 2026-07-28 13:48:02

○A2606:4700:3035::6815:4f7c2026-04-09 → 2026-05-21 · 5 obs

○ 2018-09-28 22:18:36
● 2026-04-09 19:08:08
● 2026-05-21 14:45:52
○ 2026-06-24 20:16:14
○ 2026-07-28 13:48:02

○A2606:4700:3036::6815:4f7c2026-06-24 → 2026-06-24 · 4 obs

○ 2026-05-21 14:45:52
● 2026-06-24 20:16:14
○ 2026-07-10 17:59:50
○ 2026-07-28 13:48:02

●A2606:4700:3037::ac43:d00c2026-07-10 → 2026-07-28 · 3 obs

○ 2026-06-24 20:16:14
● 2026-07-10 17:59:50
● 2026-07-28 13:48:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
scienceandus.org	roman.ns.cloudflare.com, selah.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.103

NS records: roman.ns.cloudflare.com, selah.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for scienceandus.org (unsigned zone)

⏱️ Timing

Total: 429ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.50.183, 172.67.208.12`
AAAA	2	`2606:4700:3037::ac43:d00c, 2606:4700:3030::6815:32b7`
NS	2	`roman.ns.cloudflare.com, selah.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`roman.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

scienceandus.org resolves to four IP addresses: 104.21.50.183, 172.67.208.12, 2606:4700:3030::6815:32b7 and 2606:4700:3037::ac43:d00c.

yealmptonshow.com, atlas-ints.com, epicjackpotarena.nl plus two other host names have IP numbers in common with scienceandus.org.

Name Servers

Two name servers handle the delegation for scienceandus.org: roman.ns.cloudflare.com and selah.ns.cloudflare.com.

The name server configuration of scienceandus.org is shared with other domains, for instance totaltoolsbh.com, beonline.ai, kharoozi.com and two others.

scienceandus.org shares at least some of its name servers with other domains, including portaldotrono.com, modeblog.co.uk, lumina-capital-app.com and two others.

These name servers are frequently paired with the name servers amalia.ns.cloudflare.com and jill.ns.cloudflare.com.

Hosts with 6 IP addresses each:

roman.ns.cloudflare.com resolves to 108.162.195.103, 162.159.44.103 and 172.64.35.103 among others, with 3 other IP addresses in total.

selah.ns.cloudflare.com resolves to 108.162.194.21, 162.159.38.21 and 172.64.34.21 among others, with 3 other IP addresses in total.

scienceandus.org - robtex.com