`previewedu.com`

DNSSEC	⚠️ Not signed
A	2606:4700:20::681a:a05^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::681a:b05^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::ac43:441d^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.10.5^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.11.5^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.68.29^{🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`felipe.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c74^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`felipe.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c374^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`felipe.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2374^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`felipe.ns.cloudflare.com`
		A	108.162.195.116^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`felipe.ns.cloudflare.com`
		A	162.159.44.116^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`felipe.ns.cloudflare.com`
		A	172.64.35.116^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`felipe.ns.cloudflare.com`
NS	`raquel.ns.cloudflare.com`
		A	2606:4700:50::a29f:26d2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`raquel.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2d2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`raquel.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22d2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`raquel.ns.cloudflare.com`
		A	108.162.194.210^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`raquel.ns.cloudflare.com`
		A	162.159.38.210^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`raquel.ns.cloudflare.com`
		A	172.64.34.210^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`raquel.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.26.10.5, 104.26.11.5, 172.67.68.29
		IPv6 hints	2606:4700:20::681a:a05, 2606:4700:20::681a:b05, 2606:4700:20::ac43:441d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=36, name=cloudflare-ech.com
SOA	`felipe.ns.cloudflare.com`dns@cloudflare.com serial=2409161152

`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=1783764462

Same first word

previewedu.com

DNS History

24 records (8 active, 16 former)

●NSfelipe.ns.cloudflare.com2026-05-25 → 2026-07-11 · 3 obs

○ 2018-08-31 04:55:10
● 2026-05-25 19:47:46
● 2026-07-11 10:25:58

○NSns1.namebrightdns.com2015-11-29 → 2018-08-31 · 7 obs

○ 2015-08-10 04:55:52
● 2015-11-29 23:45:00
○ 2016-03-12 11:05:46
● 2016-09-11 07:53:30
● 2018-08-31 04:55:10
○ 2026-05-25 19:47:46
○ 2026-07-11 10:25:58

○NSns2.namebrightdns.com2015-11-29 → 2018-08-31 · 7 obs

○ 2015-08-10 04:55:52
● 2015-11-29 23:45:00
○ 2016-03-12 11:05:46
● 2016-09-11 07:53:30
● 2018-08-31 04:55:10
○ 2026-05-25 19:47:46
○ 2026-07-11 10:25:58

○NSnsg1.namebrightdns.com2015-08-10 → 2016-03-12 · 5 obs

● 2015-08-10 04:55:52
○ 2015-11-29 23:45:00
● 2016-03-12 11:05:46
○ 2016-09-11 07:53:30
○ 2026-07-11 10:25:58

○NSnsg2.namebrightdns.com2015-08-10 → 2016-03-12 · 5 obs

● 2015-08-10 04:55:52
○ 2015-11-29 23:45:00
● 2016-03-12 11:05:46
○ 2016-09-11 07:53:30
○ 2026-07-11 10:25:58

●NSraquel.ns.cloudflare.com2026-05-25 → 2026-07-11 · 3 obs

○ 2018-08-31 04:55:10
● 2026-05-25 19:47:46
● 2026-07-11 10:25:58

○MXanmail.namebrightmail.com2015-08-10 → 2015-08-10 · 3 obs

● 2015-08-10 04:55:52
○ 2015-11-29 23:45:00
○ 2026-07-11 10:25:58

●A104.26.10.52026-05-25 → 2026-07-11 · 3 obs

○ 2018-08-31 04:55:10
● 2026-05-25 19:47:46
● 2026-07-11 10:25:58

●A104.26.11.52026-05-25 → 2026-07-11 · 3 obs

○ 2018-08-31 04:55:10
● 2026-05-25 19:47:46
● 2026-07-11 10:25:58

○A107.23.198.2402016-09-11 → 2016-09-11 · 4 obs

○ 2016-03-12 11:05:46
● 2016-09-11 07:53:30
○ 2018-08-31 04:55:10
○ 2026-07-11 10:25:58

●A172.67.68.292026-05-25 → 2026-07-11 · 3 obs

○ 2018-08-31 04:55:10
● 2026-05-25 19:47:46
● 2026-07-11 10:25:58

●A2606:4700:20::681a:a052026-05-25 → 2026-07-11 · 3 obs

○ 2018-08-31 04:55:10
● 2026-05-25 19:47:46
● 2026-07-11 10:25:58

●A2606:4700:20::681a:b052026-05-25 → 2026-07-11 · 3 obs

○ 2018-08-31 04:55:10
● 2026-05-25 19:47:46
● 2026-07-11 10:25:58

●A2606:4700:20::ac43:441d2026-05-25 → 2026-07-11 · 3 obs

○ 2018-08-31 04:55:10
● 2026-05-25 19:47:46
● 2026-07-11 10:25:58

○A52.0.96.242016-03-12 → 2016-03-12 · 4 obs

○ 2015-11-29 23:45:00
● 2016-03-12 11:05:46
○ 2016-09-11 07:53:30
○ 2026-07-11 10:25:58

○A52.206.43.2342016-09-11 → 2016-09-11 · 4 obs

○ 2016-03-12 11:05:46
● 2016-09-11 07:53:30
○ 2018-08-31 04:55:10
○ 2026-07-11 10:25:58

○A52.4.72.1372016-09-11 → 2016-09-11 · 4 obs

○ 2016-03-12 11:05:46
● 2016-09-11 07:53:30
○ 2018-08-31 04:55:10
○ 2026-07-11 10:25:58

○A52.71.117.992016-03-12 → 2016-03-12 · 4 obs

○ 2015-11-29 23:45:00
● 2016-03-12 11:05:46
○ 2016-09-11 07:53:30
○ 2026-07-11 10:25:58

○A54.174.31.2542015-08-10 → 2015-11-29 · 4 obs

● 2015-08-10 04:55:52
● 2015-11-29 23:45:00
○ 2016-03-12 11:05:46
○ 2026-07-11 10:25:58

○A54.208.74.2152015-08-10 → 2015-11-29 · 4 obs

● 2015-08-10 04:55:52
● 2015-11-29 23:45:00
○ 2016-03-12 11:05:46
○ 2026-07-11 10:25:58

○A54.210.33.1902016-09-11 → 2016-09-11 · 4 obs

○ 2016-03-12 11:05:46
● 2016-09-11 07:53:30
○ 2018-08-31 04:55:10
○ 2026-07-11 10:25:58

○A54.236.123.2242016-09-11 → 2016-09-11 · 4 obs

○ 2016-03-12 11:05:46
● 2016-09-11 07:53:30
○ 2018-08-31 04:55:10
○ 2026-07-11 10:25:58

○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2015-08-10 → 2016-09-11 · 4 obs

● 2015-08-10 04:55:52
● 2016-09-11 07:53:30
○ 2018-08-31 04:55:10
○ 2026-07-11 10:25:58

○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2018-08-31 → 2018-08-31 · 4 obs

○ 2016-09-11 07:53:30
● 2018-08-31 04:55:10
○ 2026-05-25 19:47:46
○ 2026-07-11 10:25:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
previewedu.com	raquel.ns.cloudflare.com, felipe.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.116

NS records: raquel.ns.cloudflare.com, felipe.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 243ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`172.67.68.29, 104.26.10.5...`
AAAA	3	`2606:4700:20::681a:b05, 2606:4700:20::681a:a05...`
NS	2	`felipe.ns.cloudflare.com, raquel.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`felipe.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

previewedu.com resolves to 6 IP numbers: 104.26.10.5, 104.26.11.5, 172.67.68.29 and 3 other.

Additional host names — clothtube.chimpone.com, www.chronoseconds.com, savonaequipment.com and two others — share IP numbers with previewedu.com.

Name Servers

previewedu.com is served by two delegated name servers, felipe.ns.cloudflare.com and raquel.ns.cloudflare.com.

previewedu.com shares its name server setup with other domains, including imgedustock.com, dhlearnpipe.com, rledumeta.com and two others.

The name servers of previewedu.com overlap at least partially with those of other domains — among them dobr.pl, yszxcn.com, cxdhaishen.com and two more.

These name servers commonly appear alongside the name servers quinton.ns.cloudflare.com and nero.ns.cloudflare.com.

Host names with 6 IP numbers:

felipe.ns.cloudflare.com carries IP addresses 108.162.195.116, 162.159.44.116 and 172.64.35.116, with 3 other addresses beyond those.

raquel.ns.cloudflare.com carries IP addresses 108.162.194.210, 162.159.38.210 and 172.64.34.210, with 3 other addresses beyond those.

previewedu.com - robtex.com

previewedu.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`previewedu.com`

`com`