`documentoestudantil.org.br`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:2407^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3031::ac43:b6ad^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.36.7^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.182.173^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`harlan.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cfa^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3fa^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`harlan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23fa^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`harlan.ns.cloudflare.com`
		A	108.162.195.250^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	162.159.44.250^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	172.64.35.250^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
NS	`journey.ns.cloudflare.com`
		A	2606:4700:50::a29f:2603^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`journey.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c203^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`journey.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2203^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`journey.ns.cloudflare.com`
		A	108.162.194.3^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`journey.ns.cloudflare.com`
		A	162.159.38.3^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`journey.ns.cloudflare.com`
		A	172.64.34.3^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`journey.ns.cloudflare.com`
TXT	`v=spf1 -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.36.7, 172.67.182.173
		IPv6 hints	2606:4700:3031::6815:2407, 2606:4700:3031::ac43:b6ad
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=101, name=cloudflare-ech.com
SOA	`harlan.ns.cloudflare.com`dns@cloudflare.com serial=2403091598

`org.br`

	DNSSEC	⚠️ Not signed
	NS	`a.dns.br` ⭐ ⚠️ Not in parent delegation
	NS	`b.dns.br` ⚠️ Not in parent delegation
	NS	`c.dns.br` ⚠️ Not in parent delegation
	NS	`d.dns.br` ⚠️ Not in parent delegation
	NS	`e.dns.br` ⚠️ Not in parent delegation
	NS	`f.dns.br` ⚠️ Not in parent delegation
	SOA	`a.dns.br`hostmaster@registro.br serial=2026129352

WOT: SAFE (99/100)

Same first word

documentoestudantil.org.br

DNS History

7 records (6 active, 1 former)

●NSharlan.ns.cloudflare.com2026-04-24 → 2026-05-09 · 2 obs

● 2026-04-24 16:07:44
● 2026-05-09 15:02:12

●NSjourney.ns.cloudflare.com2026-04-24 → 2026-05-09 · 2 obs

● 2026-04-24 16:07:44
● 2026-05-09 15:02:12

●A104.21.36.72026-05-05 → 2026-05-09 · 3 obs

○ 2026-04-29 14:43:44
● 2026-05-05 02:07:22
● 2026-05-09 15:02:12

○A162.241.2.302026-04-24 → 2026-04-29 · 4 obs

● 2026-04-24 16:07:44
● 2026-04-29 14:43:44
○ 2026-05-05 02:07:22
○ 2026-05-09 15:02:12

●A172.67.182.1732026-05-05 → 2026-05-09 · 3 obs

○ 2026-04-29 14:43:44
● 2026-05-05 02:07:22
● 2026-05-09 15:02:12

●A2606:4700:3031::6815:24072026-05-05 → 2026-05-09 · 3 obs

○ 2026-04-29 14:43:44
● 2026-05-05 02:07:22
● 2026-05-09 15:02:12

●A2606:4700:3031::ac43:b6ad2026-05-05 → 2026-05-09 · 3 obs

○ 2026-04-29 14:43:44
● 2026-05-05 02:07:22
● 2026-05-09 15:02:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	a.dns.br, b.dns.br, c.dns.br, d.dns.br...	-
documentoestudantil.org.br	harlan.ns.cloudflare.com, journey.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.250

NS records: harlan.ns.cloudflare.com, journey.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for documentoestudantil.org.br (unsigned zone)

⏱️ Timing

Total: 903ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.36.7, 172.67.182.173`
AAAA	2	`2606:4700:3031::ac43:b6ad, 2606:4700:3031::6815:2407`
NS	2	`harlan.ns.cloudflare.com, journey.ns.cloudflare.com`
MX	1	`. (pri: 0)`
TXT	1	`v=spf1 -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`harlan.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

documentoestudantil.org.br maps to four IP numbers: 2606:4700:3031::6815:2407, 2606:4700:3031::ac43:b6ad, 104.21.36.7 and 172.67.182.173.

other host names include sws.aero, regionlister.com, www.fcogarrena.com, www.2365.com.cn and kitchencookwarereviewsandrecipes.com; they share IP numbers with documentoestudantil.org.br.

Name Servers

Two name servers harlan.ns.cloudflare.com and journey.ns.cloudflare.com handle the delegation for documentoestudantil.org.br.

documentoestudantil.org.br shares the same name server setup as other domains, for instance edgar.ca, shortvalley.se, zeesoft.com, datagrame.com and space-pay.live.

documentoestudantil.org.br at least partially shares name servers with other domains, for instance simtinstitute.org, concordiadiscors.org, lcd-phone.com, techbar.info and aseet-grup333.cloud.

These name servers are commonly used alongside nena.ns.cloudflare.com, leland.ns.cloudflare.com and aida.ns.cloudflare.com.

Six IP addresses per host:

harlan.ns.cloudflare.com points to 2606:4700:58::a29f:2cfa, 2803:f800:50::6ca2:c3fa, 2a06:98c1:50::ac40:23fa, 108.162.195.250, 162.159.44.250 and 172.64.35.250; journey.ns.cloudflare.com points to 2606:4700:50::a29f:2603, 2803:f800:50::6ca2:c203, 2a06:98c1:50::ac40:2203, 108.162.194.3, 162.159.38.3 and 172.64.34.3

documentoestudantil.org.br - robtex.com