`smtb.com.br`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:8ab^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:9db9^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.8.171^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.157.185^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`adam.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b36^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adam.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c136^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`adam.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2136^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`adam.ns.cloudflare.com`
		A	108.162.193.54^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adam.ns.cloudflare.com`
		A	172.64.33.54^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adam.ns.cloudflare.com`
		A	173.245.59.54^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adam.ns.cloudflare.com`
NS	`rachel.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ad7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rachel.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rachel.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rachel.ns.cloudflare.com`
		A	108.162.192.215^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rachel.ns.cloudflare.com`
		A	172.64.32.215^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rachel.ns.cloudflare.com`
		A	173.245.58.215^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rachel.ns.cloudflare.com`
MX	`mx1.hostinger.com` ⭐
		A	2606:4700:90:0:c1f8:f874:2386:b61f^{🇺🇸 Cloudflare2606:4700:90::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.65.182.103^{🇺🇸 Cloudflare172.65.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`mx2.hostinger.com`⁽¹⁰⁾
		A	2606:4700:90:0:c1f8:f874:2386:b61f^{🇺🇸 Cloudflare2606:4700:90::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.65.182.103^{🇺🇸 Cloudflare172.65.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
TXT	`facebook-domain-verification=494rqhm06ys0fky6d7qv1xr92uixvp`
TXT	`google-site-verification=tglHblnGSffb38NHDXZMaz8mF9D74zxtknFByJNb9B0`
TXT	`v=spf1 include:_spf.mail.hostinger.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.8.171, 172.67.157.185
		IPv6 hints	2606:4700:3031::6815:8ab, 2606:4700:3035::ac43:9db9
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=20, name=cloudflare-ech.com
SOA	`adam.ns.cloudflare.com`dns@cloudflare.com serial=2409640424

`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=2026198438

rank #524847 globally
rank #3892 in the tld
WOT: SAFE (69/100)

Same first word

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DNS History

20 records (8 active, 12 former)

●NSadam.ns.cloudflare.com2026-06-19 → 2026-07-17 · 3 obs

○ 2019-01-12 21:39:08
● 2026-06-19 10:52:54
● 2026-07-17 18:22:22

○NSns1.hostinger.com.br2019-01-12 → 2019-01-12 · 3 obs

● 2019-01-12 21:39:08
○ 2026-06-19 10:52:54
○ 2026-07-17 18:22:22

○NSns2.hostinger.com.br2019-01-12 → 2019-01-12 · 3 obs

● 2019-01-12 21:39:08
○ 2026-06-19 10:52:54
○ 2026-07-17 18:22:22

○NSns3.hostinger.com.br2019-01-12 → 2019-01-12 · 3 obs

● 2019-01-12 21:39:08
○ 2026-06-19 10:52:54
○ 2026-07-17 18:22:22

○NSns4.hostinger.com.br2019-01-12 → 2019-01-12 · 3 obs

● 2019-01-12 21:39:08
○ 2026-06-19 10:52:54
○ 2026-07-17 18:22:22

●NSrachel.ns.cloudflare.com2026-06-19 → 2026-07-17 · 3 obs

○ 2019-01-12 21:39:08
● 2026-06-19 10:52:54
● 2026-07-17 18:22:22

●MXmx1.hostinger.com2026-06-19 → 2026-07-17 · 3 obs

○ 2019-01-12 21:39:08
● 2026-06-19 10:52:54
● 2026-07-17 18:22:22

○MXmx1.hostinger.com.br2019-01-12 → 2019-01-12 · 3 obs

● 2019-01-12 21:39:08
○ 2026-06-19 10:52:54
○ 2026-07-17 18:22:22

●MXmx2.hostinger.com2026-06-19 → 2026-07-17 · 3 obs

○ 2019-01-12 21:39:08
● 2026-06-19 10:52:54
● 2026-07-17 18:22:22

●A104.21.8.1712026-06-19 → 2026-07-17 · 4 obs

○ 2019-01-12 21:39:08
● 2026-06-19 10:52:54
○ 2026-07-16 11:52:24
● 2026-07-17 18:22:22

●A172.67.157.1852026-06-19 → 2026-07-17 · 4 obs

○ 2019-01-12 21:39:08
● 2026-06-19 10:52:54
○ 2026-07-16 11:52:24
● 2026-07-17 18:22:22

○A185.206.162.2152019-01-12 → 2019-01-12 · 3 obs

● 2019-01-12 21:39:08
○ 2026-06-19 10:52:54
○ 2026-07-17 18:22:22

○A188.114.96.02026-07-16 → 2026-07-16 · 3 obs

○ 2026-06-23 19:04:56
● 2026-07-16 11:52:24
○ 2026-07-17 18:22:22

○A188.114.97.02026-07-16 → 2026-07-16 · 3 obs

○ 2026-06-23 19:04:56
● 2026-07-16 11:52:24
○ 2026-07-17 18:22:22

○A2606:4700:3030::6815:8ab2026-06-19 → 2026-06-19 · 4 obs

○ 2019-01-12 21:39:08
● 2026-06-19 10:52:54
○ 2026-06-23 19:04:56
○ 2026-07-17 18:22:22

●A2606:4700:3031::6815:8ab2026-06-23 → 2026-07-17 · 4 obs

○ 2026-06-19 10:52:54
● 2026-06-23 19:04:56
○ 2026-07-16 11:52:24
● 2026-07-17 18:22:22

●A2606:4700:3035::ac43:9db92026-06-23 → 2026-07-17 · 4 obs

○ 2026-06-19 10:52:54
● 2026-06-23 19:04:56
○ 2026-07-16 11:52:24
● 2026-07-17 18:22:22

○A2606:4700:3036::ac43:9db92026-06-19 → 2026-06-19 · 4 obs

○ 2019-01-12 21:39:08
● 2026-06-19 10:52:54
○ 2026-06-23 19:04:56
○ 2026-07-17 18:22:22

○A2a06:98c1:3120::2026-07-16 → 2026-07-16 · 3 obs

○ 2026-06-23 19:04:56
● 2026-07-16 11:52:24
○ 2026-07-17 18:22:22

○A2a06:98c1:3121::2026-07-16 → 2026-07-16 · 3 obs

○ 2026-06-23 19:04:56
● 2026-07-16 11:52:24
○ 2026-07-17 18:22:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	a.dns.br, c.dns.br, b.dns.br, d.dns.br...	-
smtb.com.br	rachel.ns.cloudflare.com, adam.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.54

NS records: rachel.ns.cloudflare.com, adam.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 1278ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.157.185, 104.21.8.171`
AAAA	2	`2606:4700:3031::6815:8ab, 2606:4700:3035::ac43:9db9`
NS	2	`adam.ns.cloudflare.com, rachel.ns.cloudflare.com`
MX	2	`mx2.hostinger.com (pri: 10), mx1.hostinger.com (pri: 5)`
TXT	3	`facebook-domain-verification=494rqhm06ys, google-site-verification=tglHblnGSffb38N...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`adam.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

smtb.com.br resolves to four IP addresses: 104.21.8.171, 172.67.157.185, 2606:4700:3031::6815:8ab and 2606:4700:3035::ac43:9db9.

Two other host names, along with www.dftb-plus.info, elevationsplumbing242.com and www.vrfx8.com, also share IP numbers with smtb.com.br.

Name Servers

The NS records for smtb.com.br delegate to adam.ns.cloudflare.com and rachel.ns.cloudflare.com.

smtb.com.br shares its NS records with other domains, for example tomz.fr, inscode.pl, mxalfa.com and two others.

smtb.com.br shares at least some of its name servers with other domains, including cdn-proxy16.pages.dev, santaclaraca.gov, zxqyglykj.com and two others.

These name servers are frequently paired with the name servers sonia.ns.cloudflare.com and johnny.ns.cloudflare.com.

DNS names with 6 IP addresses:

adam.ns.cloudflare.com maps to 108.162.193.54, 172.64.33.54, 173.245.59.54 and 3 additional IP addresses.

rachel.ns.cloudflare.com maps to 108.162.192.215, 172.64.32.215, 173.245.58.215 and 3 additional IP addresses.

Mail Servers

smtb.com.br is served by two mail servers, mx1.hostinger.com and mx2.hostinger.com.

Among the domains sharing a mail server setup with smtb.com.br are eslwriting.org, marciodidier.com.br, freelanceeducator.com and two others.

smtb.com.br partially shares its mail servers with other domains; known examples include iqsf.pk, rydiant.com and bakermaster.ca.

mx1.hostinger.com has IP addresses 172.65.182.103 and 2606:4700:90:0:c1f8:f874:2386:b61f; mx2.hostinger.com has the same IP addresses: 172.65.182.103 and 2606:4700:90:0:c1f8:f874:2386:b61f.

mx1.hostinger.com and mx2.hostinger.com each have 2606:4700:90:0:c1f8:f874:2386:b61f IP addresses.

mx1.hostinger.com and mx2.hostinger.com each have 172.65.182.103 IP addresses.

smtb.com.br - robtex.com

smtb.com.br

com.br

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`smtb.com.br`

`com.br`