`blockoffice.com.br`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:3e25^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:db6d^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.62.37^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.219.109^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ezra.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c0f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ezra.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c30f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ezra.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:230f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ezra.ns.cloudflare.com`
		A	108.162.195.15^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ezra.ns.cloudflare.com`
		A	162.159.44.15^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ezra.ns.cloudflare.com`
		A	172.64.35.15^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ezra.ns.cloudflare.com`
NS	`romina.ns.cloudflare.com`
		A	2606:4700:50::a29f:269f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`romina.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c29f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`romina.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:229f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`romina.ns.cloudflare.com`
		A	108.162.194.159^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`romina.ns.cloudflare.com`
		A	162.159.38.159^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`romina.ns.cloudflare.com`
		A	172.64.34.159^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`romina.ns.cloudflare.com`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c1b::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f26.1e100.net`
		A	2607:f8b0:4004:c1d::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f26.1e100.net`
		A	2607:f8b0:4004:c1d::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f27.1e100.net`
		A	2607:f8b0:4004:c23::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f27.1e100.net`
		A	142.251.163.26^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f26.1e100.net`
		A	142.251.167.26^{🇺🇸 Google142.251.167.0/24}
			PTR	`ww-in-f26.1e100.net`
		A	142.251.167.27^{🇺🇸 Google142.251.167.0/24}
			PTR	`ww-in-f27.1e100.net`
		A	192.178.155.26^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	192.178.155.27^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f27.1e100.net`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.62.37, 172.67.219.109
		IPv6 hints	2606:4700:3034::6815:3e25, 2606:4700:3035::ac43:db6d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=194, name=cloudflare-ech.com
SOA	`ezra.ns.cloudflare.com`dns@cloudflare.com serial=2408357585

`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=2026200512

rank #530825 globally
rank #3902 in the tld
WOT: SAFE (69/100)

Same first word

blockoffice.com.br

blockoffice.cz

Similar names

officeblock.io

DNS History

11 records (7 active, 4 former)

●NSezra.ns.cloudflare.com2026-04-01 → 2026-07-19 · 3 obs

○ 2018-05-06 16:45:08
● 2026-04-01 09:54:38
● 2026-07-19 21:47:46

○NSns81.domaincontrol.com2018-05-06 → 2018-05-06 · 3 obs

● 2018-05-06 16:45:08
○ 2026-04-01 09:54:38
○ 2026-07-19 21:47:46

○NSns82.domaincontrol.com2018-05-06 → 2018-05-06 · 3 obs

● 2018-05-06 16:45:08
○ 2026-04-01 09:54:38
○ 2026-07-19 21:47:46

●NSromina.ns.cloudflare.com2026-04-01 → 2026-07-19 · 3 obs

○ 2018-05-06 16:45:08
● 2026-04-01 09:54:38
● 2026-07-19 21:47:46

○MXblockoffice-com-br.mail.protection.outlook.com2018-05-06 → 2018-05-06 · 3 obs

● 2018-05-06 16:45:08
○ 2026-04-01 09:54:38
○ 2026-07-19 21:47:46

●MXsmtp.google.com2026-04-01 → 2026-07-19 · 3 obs

○ 2018-05-06 16:45:08
● 2026-04-01 09:54:38
● 2026-07-19 21:47:46

●A104.21.62.372026-04-01 → 2026-07-19 · 3 obs

○ 2018-05-06 16:45:08
● 2026-04-01 09:54:38
● 2026-07-19 21:47:46

●A172.67.219.1092026-04-01 → 2026-07-19 · 3 obs

○ 2018-05-06 16:45:08
● 2026-04-01 09:54:38
● 2026-07-19 21:47:46

●A2606:4700:3034::6815:3e252026-04-01 → 2026-07-19 · 3 obs

○ 2018-05-06 16:45:08
● 2026-04-01 09:54:38
● 2026-07-19 21:47:46

●A2606:4700:3035::ac43:db6d2026-04-01 → 2026-07-19 · 3 obs

○ 2018-05-06 16:45:08
● 2026-04-01 09:54:38
● 2026-07-19 21:47:46

○A50.63.202.72018-05-06 → 2018-05-06 · 3 obs

● 2018-05-06 16:45:08
○ 2026-04-01 09:54:38
○ 2026-07-19 21:47:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	a.dns.br, b.dns.br, c.dns.br, d.dns.br...	-
blockoffice.com.br	ezra.ns.cloudflare.com, romina.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.159

NS records: ezra.ns.cloudflare.com, romina.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 777ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.219.109, 104.21.62.37`
AAAA	2	`2606:4700:3034::6815:3e25, 2606:4700:3035::ac43:db6d`
NS	2	`ezra.ns.cloudflare.com, romina.ns.cloudflare.com`
MX	1	`smtp.google.com (pri: 1)`
TXT	1	`v=spf1 include:_spf.google.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ezra.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

blockoffice.com.br points to the four IP addresses 104.21.62.37, 172.67.219.109, 2606:4700:3034::6815:3e25 and 2606:4700:3035::ac43:db6d.

yuan-horng.com, www.xmsinfo.org.cn, blog.lizardwrangler.com plus two other host names have IP numbers in common with blockoffice.com.br.

Name Servers

DNS delegation for blockoffice.com.br points to two name servers: ezra.ns.cloudflare.com and romina.ns.cloudflare.com.

The name server configuration of blockoffice.com.br is shared with other domains, for instance hsholdings.lk, votes-onbeam.com, fire-quant.com and two others.

The name servers of blockoffice.com.br overlap at least partially with those of other domains — among them fiancees-ua.com, tecnesta.com, speed-rower.pl and two more.

These name servers commonly appear alongside the name servers suzanne.ns.cloudflare.com and thea.ns.cloudflare.com.

Hosts with 6 IP addresses each:

ezra.ns.cloudflare.com has IP addresses 108.162.195.15, 162.159.44.15 and 172.64.35.15, plus 3 other.

romina.ns.cloudflare.com has IP addresses 108.162.194.159, 162.159.38.159 and 172.64.34.159, plus 3 other.

Mail Servers

blockoffice.com.br uses one mail server — smtp.google.com.

The mail server setup of blockoffice.com.br matches that of other domains such as secche.com, adagintech.com, chaocaipira.org.br and two others.

At least some of the mail servers used by blockoffice.com.br are shared with other domains: u(0x736578)pat.com, visakh.in, cbix.ae and two others among them.

The mail servers aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com are commonly used alongside these mail servers.

smtp.google.com has 9 IP addresses: 142.251.163.26, 142.251.167.26, 142.251.167.27 plus 6 more.

blockoffice.com.br - robtex.com