certmaster.com.br - dns.ninja

`certmaster.com.br`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:c39e^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:2496^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.36.150^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.195.158^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`curt.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b5e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`curt.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c15e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`curt.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:215e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`curt.ns.cloudflare.com`
		A	108.162.193.94^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`curt.ns.cloudflare.com`
		A	172.64.33.94^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`curt.ns.cloudflare.com`
		A	173.245.59.94^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`curt.ns.cloudflare.com`
NS	`dorthy.ns.cloudflare.com`
		A	2606:4700:50::adf5:3af9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dorthy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dorthy.ns.cloudflare.com`
		A	108.162.192.249^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	172.64.32.249^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	173.245.58.249^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c09::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bh-in-f27.1e100.net`
		A	172.253.115.26^{🇺🇸 Google172.253.115.0/24}
			PTR	`bg-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`google-site-verification=FH2yoNQQQM_8ZbghwghPvx8aA01RYvFH5-7KoibQ1tk`
TXT	`v=spf1 include:_spf.google.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.36.150, 172.67.195.158
		IPv6 hints	2606:4700:3030::ac43:c39e, 2606:4700:3033::6815:2496
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=238, name=cloudflare-ech.com
SOA	`curt.ns.cloudflare.com`dns@cloudflare.com serial=2407220270

`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=2026206320

rank #482921 globally
rank #3499 in the tld
WOT: SAFE (69/100)

Same first word

certmaster.org

certmaster.co

certmaster.at

certmaster.store

certmaster.info

certmaster.me

certmaster.com.br

certmaster.us

certmaster.ca

certmaster.shop

certmaster.com

certmaster.online

Similar names

certstream.net

mastercert.com

mastercret.com

secretmart.com

secretmart.shop

smartcrete.net

smartertec.com

certstream.com

DNS History

23 records (11 active, 12 former)

●NScurt.ns.cloudflare.com2026-03-10 → 2026-07-25 · 3 obs

○ 2016-11-17 16:04:26
● 2026-03-10 23:44:52
● 2026-07-25 13:41:48

●NSdorthy.ns.cloudflare.com2026-03-10 → 2026-07-25 · 3 obs

○ 2016-11-17 16:04:26
● 2026-03-10 23:44:52
● 2026-07-25 13:41:48

○NSns1.locaweb.com.br2015-08-31 → 2016-11-17 · 4 obs

● 2015-08-31 01:22:22
● 2016-11-17 16:04:26
○ 2026-03-10 23:44:52
○ 2026-07-25 13:41:48

○NSns2.locaweb.com.br2015-08-31 → 2016-11-17 · 4 obs

● 2015-08-31 01:22:22
● 2016-11-17 16:04:26
○ 2026-03-10 23:44:52
○ 2026-07-25 13:41:48

○NSns3.locaweb.com.br2015-08-31 → 2016-11-17 · 4 obs

● 2015-08-31 01:22:22
● 2016-11-17 16:04:26
○ 2026-03-10 23:44:52
○ 2026-07-25 13:41:48

●MXalt1.aspmx.l.google.com2015-08-31 → 2026-07-25 · 2 obs

● 2015-08-31 01:22:22
● 2026-07-25 13:41:48

●MXalt2.aspmx.l.google.com2015-08-31 → 2026-07-25 · 2 obs

● 2015-08-31 01:22:22
● 2026-07-25 13:41:48

●MXalt3.aspmx.l.google.com2026-03-10 → 2026-07-25 · 3 obs

○ 2016-11-17 16:04:26
● 2026-03-10 23:44:52
● 2026-07-25 13:41:48

●MXalt4.aspmx.l.google.com2026-03-10 → 2026-07-25 · 3 obs

○ 2016-11-17 16:04:26
● 2026-03-10 23:44:52
● 2026-07-25 13:41:48

●MXaspmx.l.google.com2015-08-31 → 2026-07-25 · 2 obs

● 2015-08-31 01:22:22
● 2026-07-25 13:41:48

○MXaspmx2.googlemail.com2015-08-31 → 2016-11-17 · 4 obs

● 2015-08-31 01:22:22
● 2016-11-17 16:04:26
○ 2026-03-10 23:44:52
○ 2026-07-25 13:41:48

○MXaspmx3.googlemail.com2015-08-31 → 2016-11-17 · 4 obs

● 2015-08-31 01:22:22
● 2016-11-17 16:04:26
○ 2026-03-10 23:44:52
○ 2026-07-25 13:41:48

●A104.21.36.1502026-03-10 → 2026-07-25 · 10 obs

○ 2016-11-17 16:04:26
● 2026-03-10 23:44:52
● 2026-04-29 10:45:54
○ 2026-05-01 09:37:32
● 2026-05-01 11:06:40
● 2026-06-04 21:23:40
○ 2026-06-10 13:48:54
● 2026-06-19 13:55:48
○ 2026-07-08 09:57:00
● 2026-07-25 13:41:48

●A172.67.195.1582026-03-10 → 2026-07-25 · 10 obs

○A186.202.153.1412015-08-31 → 2016-11-17 · 4 obs

● 2015-08-31 01:22:22
● 2016-11-17 16:04:26
○ 2026-03-10 23:44:52
○ 2026-07-25 13:41:48

○A188.114.96.02026-05-01 → 2026-07-08 · 8 obs

○ 2026-04-29 10:45:54
● 2026-05-01 09:37:32
○ 2026-05-01 11:06:40
○ 2026-06-04 21:23:40
● 2026-06-10 13:48:54
○ 2026-06-19 13:55:48
● 2026-07-08 09:57:00
○ 2026-07-25 13:41:48

○A188.114.97.02026-05-01 → 2026-07-08 · 8 obs

○ 2026-04-29 10:45:54
● 2026-05-01 09:37:32
○ 2026-05-01 11:06:40
○ 2026-06-04 21:23:40
● 2026-06-10 13:48:54
○ 2026-06-19 13:55:48
● 2026-07-08 09:57:00
○ 2026-07-25 13:41:48

●A2606:4700:3030::ac43:c39e2026-07-25 → 2026-07-25 · 2 obs

○ 2026-07-08 09:57:00
● 2026-07-25 13:41:48

●A2606:4700:3033::6815:24962026-07-25 → 2026-07-25 · 2 obs

○ 2026-07-08 09:57:00
● 2026-07-25 13:41:48

○A2606:4700:3033::ac43:c39e2026-03-10 → 2026-06-19 · 10 obs

○A2606:4700:3034::6815:24962026-03-10 → 2026-06-19 · 10 obs

○A2a06:98c1:3120::2026-05-01 → 2026-07-08 · 8 obs

○ 2026-04-29 10:45:54
● 2026-05-01 09:37:32
○ 2026-05-01 11:06:40
○ 2026-06-04 21:23:40
● 2026-06-10 13:48:54
○ 2026-06-19 13:55:48
● 2026-07-08 09:57:00
○ 2026-07-25 13:41:48

○A2a06:98c1:3121::2026-05-01 → 2026-07-08 · 8 obs

○ 2026-04-29 10:45:54
● 2026-05-01 09:37:32
○ 2026-05-01 11:06:40
○ 2026-06-04 21:23:40
● 2026-06-10 13:48:54
○ 2026-06-19 13:55:48
● 2026-07-08 09:57:00
○ 2026-07-25 13:41:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	b.dns.br, f.dns.br, a.dns.br, e.dns.br...	-
certmaster.com.br	curt.ns.cloudflare.com, dorthy.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.94

NS records: curt.ns.cloudflare.com, dorthy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 842ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.36.150, 172.67.195.158`
AAAA	2	`2606:4700:3033::6815:2496, 2606:4700:3030::ac43:c39e`
NS	2	`curt.ns.cloudflare.com, dorthy.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	2	`google-site-verification=FH2yoNQQQM_8Zbg, v=spf1 include:_spf.google.com -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`curt.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

certmaster.com.br directs to four IP numbers, which are 104.21.36.150, 172.67.195.158, 2606:4700:3030::ac43:c39e and 2606:4700:3033::6815:2496.

Among the host names that share IP numbers with certmaster.com.br are ltngworth.icu, dfkj999.com, www.goldendusthive.pro and two others.

Name Servers

Two name servers handle the delegation for certmaster.com.br: curt.ns.cloudflare.com and dorthy.ns.cloudflare.com.

certmaster.com.br has the same name server delegation as a number of other domains, such as melkib.com, paulokoziol.com.br, talua.com.br and two more.

At least some of certmaster.com.br's name servers are shared with other domains, for example beephone.vn, thephysicianrelationship.com, ph11.com and two more.

These name servers are often deployed together with the name servers rayden.ns.cloudflare.com, abdullah.ns.cloudflare.com, dalary.ns.cloudflare.com and alina.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

curt.ns.cloudflare.com resolves to 108.162.193.94, 172.64.33.94 and 173.245.59.94 among others, with 3 other IP addresses in total.

dorthy.ns.cloudflare.com resolves to 108.162.192.249, 172.64.32.249 and 173.245.58.249 among others, with 3 other IP addresses in total.

Mail Servers

Five mail servers handle certmaster.com.br: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

certmaster.com.br shares at least some of its mail servers with other domains — for example leadpluss.com, ns500671.ns500731.ns500754.ns500742.ns500742.ns500742.ns500731.ns500671.ns500705.ns500649.ns500649.ns500649.ns500666.tenderladiesbz.com, ns500731.ns500671.ns500742.ns500671.ns500731.ns500671.ns500688.ns500704.ns500688.ns500671.ns500649.ns500649.lustychickser.com and two more.

These mail servers tend to be used in conjunction with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and two additional mail servers.

Hosts with two IP numbers each:

aspmx.l.google.com resolves to two addresses: 172.253.115.26 and 2607:f8b0:4004:c09::1b.

alt1.aspmx.l.google.com resolves to two addresses: 108.177.123.26 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com resolves to two addresses: 172.253.116.27 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com resolves to two addresses: 192.178.223.27 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com resolves to two addresses: 172.253.157.26 and 2a00:1450:400c:c23::1b.