`presentingscience.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:95e2^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:5808^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.88.8^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.149.226^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`sydney.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2666^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sydney.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c266^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sydney.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2266^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sydney.ns.cloudflare.com`
		A	108.162.194.102^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sydney.ns.cloudflare.com`
		A	162.159.38.102^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sydney.ns.cloudflare.com`
		A	172.64.34.102^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sydney.ns.cloudflare.com`
NS	`valentin.ns.cloudflare.com`
		A	2606:4700:58::a29f:2cce^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`valentin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3ce^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`valentin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23ce^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`valentin.ns.cloudflare.com`
		A	108.162.195.206^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`valentin.ns.cloudflare.com`
		A	162.159.44.206^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`valentin.ns.cloudflare.com`
		A	172.64.35.206^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`valentin.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.88.8, 172.67.149.226
		IPv6 hints	2606:4700:3031::ac43:95e2, 2606:4700:3035::6815:5808
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=99, name=cloudflare-ech.com
SOA	`sydney.ns.cloudflare.com`dns@cloudflare.com serial=2407122282

`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=1786174719

Previously MX for

presentingscience.com

Same first word

presentingscience.com

DNS History

18 records (6 active, 12 former)

○NSns0.demon.co.uk2007-11-10 → 2007-11-10 · 3 obs

● 2007-11-10 17:12:52
○ 2015-06-01 08:41:52
○ 2026-08-08 07:54:26

○NSns1.demon.co.uk2007-11-10 → 2007-11-10 · 3 obs

● 2007-11-10 17:12:52
○ 2015-06-01 08:41:52
○ 2026-08-08 07:54:26

○NSns2.demon.net2007-11-10 → 2007-11-10 · 3 obs

● 2007-11-10 17:12:52
○ 2015-06-01 08:41:52
○ 2026-08-08 07:54:26

○NSns5.catalyst2.net2015-06-01 → 2019-04-13 · 5 obs

○ 2007-11-10 17:12:52
● 2015-06-01 08:41:52
● 2019-04-13 17:39:18
○ 2026-06-21 19:52:12
○ 2026-08-08 07:54:26

○NSns6.catalyst2.net2015-06-01 → 2019-04-13 · 5 obs

○ 2007-11-10 17:12:52
● 2015-06-01 08:41:52
● 2019-04-13 17:39:18
○ 2026-06-21 19:52:12
○ 2026-08-08 07:54:26

●NSsydney.ns.cloudflare.com2026-06-21 → 2026-08-08 · 3 obs

○ 2019-04-13 17:39:18
● 2026-06-21 19:52:12
● 2026-08-08 07:54:26

●NSvalentin.ns.cloudflare.com2026-06-21 → 2026-08-08 · 3 obs

○ 2019-04-13 17:39:18
● 2026-06-21 19:52:12
● 2026-08-08 07:54:26

○MXmailbackup.active-ns.com2015-06-01 → 2019-04-13 · 5 obs

○ 2007-11-10 17:12:52
● 2015-06-01 08:41:52
● 2019-04-13 17:39:18
○ 2026-06-21 19:52:12
○ 2026-08-08 07:54:26

○MXpresentingscience.com2015-06-01 → 2019-04-13 · 5 obs

○ 2007-11-10 17:12:52
● 2015-06-01 08:41:52
● 2019-04-13 17:39:18
○ 2026-06-21 19:52:12
○ 2026-08-08 07:54:26

○MXpunt-1.mail.demon.net2007-11-10 → 2007-11-10 · 3 obs

● 2007-11-10 17:12:52
○ 2015-06-01 08:41:52
○ 2026-08-08 07:54:26

○MXpunt-2.mail.demon.net2007-11-10 → 2007-11-10 · 3 obs

● 2007-11-10 17:12:52
○ 2015-06-01 08:41:52
○ 2026-08-08 07:54:26

●A104.21.88.82026-06-21 → 2026-08-08 · 3 obs

○ 2019-04-13 17:39:18
● 2026-06-21 19:52:12
● 2026-08-08 07:54:26

●A172.67.149.2262026-06-21 → 2026-08-08 · 3 obs

○ 2019-04-13 17:39:18
● 2026-06-21 19:52:12
● 2026-08-08 07:54:26

●A2606:4700:3031::ac43:95e22026-07-31 → 2026-08-08 · 3 obs

○ 2026-06-21 19:52:12
● 2026-07-31 07:36:00
● 2026-08-08 07:54:26

●A2606:4700:3035::6815:58082026-07-31 → 2026-08-08 · 3 obs

○ 2026-06-21 19:52:12
● 2026-07-31 07:36:00
● 2026-08-08 07:54:26

○A2606:4700:3035::ac43:95e22026-06-21 → 2026-06-21 · 4 obs

○ 2019-04-13 17:39:18
● 2026-06-21 19:52:12
○ 2026-07-31 07:36:00
○ 2026-08-08 07:54:26

○A2606:4700:3036::6815:58082026-06-21 → 2026-06-21 · 4 obs

○ 2019-04-13 17:39:18
● 2026-06-21 19:52:12
○ 2026-07-31 07:36:00
○ 2026-08-08 07:54:26

○A84.18.207.682015-06-01 → 2019-04-13 · 5 obs

○ 2007-11-10 17:12:52
● 2015-06-01 08:41:52
● 2019-04-13 17:39:18
○ 2026-06-21 19:52:12
○ 2026-08-08 07:54:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
presentingscience.com	sydney.ns.cloudflare.com, valentin.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.102

NS records: sydney.ns.cloudflare.com, valentin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for presentingscience.com (unsigned zone)

⏱️ Timing

Total: 197ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.149.226, 104.21.88.8`
AAAA	2	`2606:4700:3035::6815:5808, 2606:4700:3031::ac43:95e2`
NS	2	`sydney.ns.cloudflare.com, valentin.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`sydney.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

presentingscience.com has four IP addresses: 104.21.88.8, 172.67.149.226, 2606:4700:3031::ac43:95e2 and 2606:4700:3035::6815:5808.

Among the host names that share IP numbers with presentingscience.com are sfstp.org, cxswzx.com, comparedrives.com and two others.

Name Servers

The NS records for presentingscience.com delegate to sydney.ns.cloudflare.com and valentin.ns.cloudflare.com.

presentingscience.com has the same name server delegation as a number of other domains, such as crabillshamburgers.com, shipdirectusa.com, muravey68.ru and two more.

presentingscience.com partially shares its NS delegation with several other domains, including cyclestuffs.com, work-at-home-forum.com, moduys01.com and two others.

These name servers are routinely co-deployed with the name servers kipp.ns.cloudflare.com, marge.ns.cloudflare.com, cesar.ns.cloudflare.com and two others.

Host names resolving to 6 IP numbers:

sydney.ns.cloudflare.com maps to 108.162.194.102, 162.159.38.102, 172.64.34.102 and 3 additional IP addresses.

valentin.ns.cloudflare.com maps to 108.162.195.206, 162.159.44.206, 172.64.35.206 and 3 additional IP addresses.

presentingscience.com - robtex.com