`scienceblogs.com.br`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::ac43:dd4b^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:5696^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.86.150^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.221.75^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`alexandra.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:261e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alexandra.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c21e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`alexandra.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:221e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`alexandra.ns.cloudflare.com`
		A	108.162.194.30^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alexandra.ns.cloudflare.com`
		A	162.159.38.30^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alexandra.ns.cloudflare.com`
		A	172.64.34.30^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alexandra.ns.cloudflare.com`
NS	`jay.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b7b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jay.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c17b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jay.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:217b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jay.ns.cloudflare.com`
		A	108.162.193.123^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jay.ns.cloudflare.com`
		A	172.64.33.123^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jay.ns.cloudflare.com`
		A	173.245.59.123^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jay.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.86.150, 172.67.221.75
		IPv6 hints	2606:4700:3035::ac43:dd4b, 2606:4700:3036::6815:5696
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=155, name=cloudflare-ech.com
SOA	`alexandra.ns.cloudflare.com`dns@cloudflare.com serial=2402745390

`com.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=2026117182

rank #834585 globally
rank #6039 in the tld
WOT: SAFE (91/100)
rank #577683 globally
rank #4188 in the tld
WOT: SAFE (69/100)

Same first word

scienceblogs.com.br

scienceblogs.de

scienceblogs.org.uk

scienceblogs.fr

scienceblogs.com

scienceblogs.dk

scienceblogs.eu

DNS History

19 records (6 active, 13 former)

○NSa.auto.dns.br2026-04-25 → 2026-04-25 · 3 obs

○ 2026-03-17 19:42:12
● 2026-04-25 16:56:30
○ 2026-04-27 07:44:14

●NSalexandra.ns.cloudflare.com2026-04-27 → 2026-04-27 · 2 obs

○ 2026-04-25 16:56:30
● 2026-04-27 07:44:14

○NSb.auto.dns.br2026-04-25 → 2026-04-25 · 3 obs

○ 2026-03-17 19:42:12
● 2026-04-25 16:56:30
○ 2026-04-27 07:44:14

○NSisla.ns.cloudflare.com2015-08-22 → 2016-04-18 · 4 obs

● 2015-08-22 16:29:24
● 2016-04-18 21:37:46
○ 2026-03-17 19:42:12
○ 2026-04-27 07:44:14

●NSjay.ns.cloudflare.com2026-04-27 → 2026-04-27 · 2 obs

○ 2026-04-25 16:56:30
● 2026-04-27 07:44:14

○NSmax.ns.cloudflare.com2015-08-22 → 2016-04-18 · 4 obs

● 2015-08-22 16:29:24
● 2016-04-18 21:37:46
○ 2026-03-17 19:42:12
○ 2026-04-27 07:44:14

○MXalt1.aspmx.l.google.com2015-08-22 → 2016-04-18 · 4 obs

● 2015-08-22 16:29:24
● 2016-04-18 21:37:46
○ 2026-03-17 19:42:12
○ 2026-04-27 07:44:14

○MXalt2.aspmx.l.google.com2015-08-22 → 2016-04-18 · 4 obs

● 2015-08-22 16:29:24
● 2016-04-18 21:37:46
○ 2026-03-17 19:42:12
○ 2026-04-27 07:44:14

○MXaspmx.l.google.com2015-08-22 → 2016-04-18 · 4 obs

● 2015-08-22 16:29:24
● 2016-04-18 21:37:46
○ 2026-03-17 19:42:12
○ 2026-04-27 07:44:14

○MXaspmx2.googlemail.com2015-08-22 → 2016-04-18 · 4 obs

● 2015-08-22 16:29:24
● 2016-04-18 21:37:46
○ 2026-03-17 19:42:12
○ 2026-04-27 07:44:14

○MXaspmx3.googlemail.com2015-08-22 → 2016-04-18 · 4 obs

● 2015-08-22 16:29:24
● 2016-04-18 21:37:46
○ 2026-03-17 19:42:12
○ 2026-04-27 07:44:14

●A104.21.86.1502026-04-27 → 2026-04-27 · 2 obs

○ 2026-03-17 19:42:12
● 2026-04-27 07:44:14

○A104.28.24.1242015-08-22 → 2016-04-18 · 4 obs

● 2015-08-22 16:29:24
● 2016-04-18 21:37:46
○ 2026-03-17 19:42:12
○ 2026-04-27 07:44:14

○A104.28.25.1242015-08-22 → 2016-04-18 · 4 obs

● 2015-08-22 16:29:24
● 2016-04-18 21:37:46
○ 2026-03-17 19:42:12
○ 2026-04-27 07:44:14

●A172.67.221.752026-04-27 → 2026-04-27 · 2 obs

○ 2026-03-17 19:42:12
● 2026-04-27 07:44:14

○A2400:cb00:2048:1::681c:187c2015-08-22 → 2016-04-18 · 4 obs

● 2015-08-22 16:29:24
● 2016-04-18 21:37:46
○ 2026-03-17 19:42:12
○ 2026-04-27 07:44:14

○A2400:cb00:2048:1::681c:197c2015-08-22 → 2016-04-18 · 4 obs

● 2015-08-22 16:29:24
● 2016-04-18 21:37:46
○ 2026-03-17 19:42:12
○ 2026-04-27 07:44:14

●A2606:4700:3035::ac43:dd4b2026-04-27 → 2026-04-27 · 2 obs

○ 2026-03-17 19:42:12
● 2026-04-27 07:44:14

●A2606:4700:3036::6815:56962026-04-27 → 2026-04-27 · 2 obs

○ 2026-03-17 19:42:12
● 2026-04-27 07:44:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	c.dns.br, e.dns.br, b.dns.br, f.dns.br...	-
scienceblogs.com.br	jay.ns.cloudflare.com, alexandra.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.38.30

NS records: jay.ns.cloudflare.com, alexandra.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for scienceblogs.com.br (unsigned zone)

⏱️ Timing

Total: 693ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.86.150, 172.67.221.75`
AAAA	2	`2606:4700:3036::6815:5696, 2606:4700:3035::ac43:dd4b`
NS	2	`alexandra.ns.cloudflare.com, jay.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`alexandra.ns.cloudflare.com dns.cloudfla`

Analysis

IP Addresses

scienceblogs.com.br resolves to four IP numbers: 2606:4700:3035::ac43:dd4b, 2606:4700:3036::6815:5696, 104.21.86.150 and 172.67.221.75.

Other host names such as spa.co.il, bgc.rs, saicasdg.co.za, nixiagamer.com and babnb.cn share IPs with scienceblogs.com.br.

Name Servers

scienceblogs.com.br is delegated to two name servers: alexandra.ns.cloudflare.com and jay.ns.cloudflare.com.

scienceblogs.com.br shares the same name server setup as idbmm.com, fous.com, resumoescolar.com.br, ko-yardim.com and yaak.app.

scienceblogs.com.br at least partially shares name servers with other domains, for instance jiusentd.com, 888bet-casino-br.com, jxsyfs.com, ayulankatours.com and elitedriftshop.com.

These name servers are commonly used with sage.ns.cloudflare.com and albert.ns.cloudflare.com.

Host names with six IP numbers:

alexandra.ns.cloudflare.com points to 2606:4700:50::a29f:261e, 2803:f800:50::6ca2:c21e, 2a06:98c1:50::ac40:221e, 108.162.194.30, 162.159.38.30 and 172.64.34.30.

jay.ns.cloudflare.com points to 2606:4700:58::adf5:3b7b, 2803:f800:50::6ca2:c17b, 2a06:98c1:50::ac40:217b, 108.162.193.123, 172.64.33.123 and 173.245.59.123.

scienceblogs.com.br - robtex.com