`combustech.com.br`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::ac43:89bb^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:365f^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.54.95^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.137.187^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`aaden.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c5c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aaden.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c35c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`aaden.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:235c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`aaden.ns.cloudflare.com`
		A	108.162.195.92^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aaden.ns.cloudflare.com`
		A	162.159.44.92^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aaden.ns.cloudflare.com`
		A	172.64.35.92^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aaden.ns.cloudflare.com`
NS	`elaine.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a98^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elaine.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c098^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elaine.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2098^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elaine.ns.cloudflare.com`
		A	108.162.192.152^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elaine.ns.cloudflare.com`
		A	172.64.32.152^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elaine.ns.cloudflare.com`
		A	173.245.58.152^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elaine.ns.cloudflare.com`
MX	`mx.core.locaweb.com.br` ⭐
		A	177.153.23.241^{🇧🇷 Locaweb177.153.0.0/19 Servicos de Internet SA}
			PTR	`mx.core.locaweb.com.br`
MX	`mx.a.locaweb.com.br`⁽²⁰⁾
		A	186.202.4.42^{🇧🇷 Locaweb186.202.0.0/19 Servicos de Internet SA}
			PTR	`mx.a.locaweb.com.br`
MX	`mx.b.locaweb.com.br`⁽²⁰⁾
		A	177.153.23.242^{🇧🇷 Locaweb177.153.0.0/19 Servicos de Internet SA}
			PTR	`mx.b.locaweb.com.br`
MX	`mx.jk.locaweb.com.br`⁽²⁰⁾
		A	200.234.204.130^{🇧🇷 Locaweb200.234.192.0/20 Servicos de Internet SA}
			PTR	`mx.jk.locaweb.com.br`
TXT	`ca3-5936f5b156024fd3b611718db497b670`
TXT	`v=spf1 include:_spf.locaweb.com.br -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.54.95, 172.67.137.187
		IPv6	2606:4700:3035::ac43:89bb, 2606:4700:3037::6815:365f
SOA	`aaden.ns.cloudflare.com`dns@cloudflare.com serial=2398955643

`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=2026086460

rank #550596 globally
rank #4104 in the tld
WOT: SAFE (69/100)

Previously MX for

combustech.com.br

Same first word

combustech.net

combustech.com.br

DNS History

28 records (10 active, 18 former)

●NSaaden.ns.cloudflare.com2026-02-25 → 2026-03-27 · 3 obs

○ 2020-02-02 10:10:42
● 2026-02-25 07:40:18
● 2026-03-27 19:23:44

○NSdns1.kinghost.com.br2015-05-08 → 2015-09-23 · 4 obs

● 2015-05-08 15:00:52
● 2015-09-23 23:28:26
○ 2015-12-17 18:27:36
○ 2026-03-27 19:23:44

○NSdns2.kinghost.com.br2015-05-08 → 2015-09-23 · 4 obs

● 2015-05-08 15:00:52
● 2015-09-23 23:28:26
○ 2015-12-17 18:27:36
○ 2026-03-27 19:23:44

○NSdns3.kinghost.com.br2015-05-08 → 2015-09-23 · 4 obs

● 2015-05-08 15:00:52
● 2015-09-23 23:28:26
○ 2015-12-17 18:27:36
○ 2026-03-27 19:23:44

○NSdns4.kinghost.com.br2015-05-08 → 2015-09-23 · 4 obs

● 2015-05-08 15:00:52
● 2015-09-23 23:28:26
○ 2015-12-17 18:27:36
○ 2026-03-27 19:23:44

○NSdns5.kinghost.com.br2015-05-08 → 2015-09-23 · 4 obs

● 2015-05-08 15:00:52
● 2015-09-23 23:28:26
○ 2015-12-17 18:27:36
○ 2026-03-27 19:23:44

○NSdns6.kinghost.com.br2015-05-08 → 2015-09-23 · 4 obs

● 2015-05-08 15:00:52
● 2015-09-23 23:28:26
○ 2015-12-17 18:27:36
○ 2026-03-27 19:23:44

●NSelaine.ns.cloudflare.com2026-02-25 → 2026-03-27 · 3 obs

○ 2020-02-02 10:10:42
● 2026-02-25 07:40:18
● 2026-03-27 19:23:44

○NSns1.locaweb.com.br2020-02-02 → 2020-02-02 · 4 obs

○ 2017-02-18 14:39:40
● 2020-02-02 10:10:42
○ 2026-02-25 07:40:18
○ 2026-03-27 19:23:44

○NSns2.locaweb.com.br2020-02-02 → 2020-02-02 · 4 obs

○ 2017-02-18 14:39:40
● 2020-02-02 10:10:42
○ 2026-02-25 07:40:18
○ 2026-03-27 19:23:44

○NSns3.locaweb.com.br2020-02-02 → 2020-02-02 · 4 obs

○ 2017-02-18 14:39:40
● 2020-02-02 10:10:42
○ 2026-02-25 07:40:18
○ 2026-03-27 19:23:44

○NSns604.hostgator.com.br2015-12-17 → 2017-02-18 · 5 obs

○ 2015-09-23 23:28:26
● 2015-12-17 18:27:36
● 2017-02-18 14:39:40
○ 2020-02-02 10:10:42
○ 2026-03-27 19:23:44

○NSns605.hostgator.com.br2015-12-17 → 2017-02-18 · 5 obs

○ 2015-09-23 23:28:26
● 2015-12-17 18:27:36
● 2017-02-18 14:39:40
○ 2020-02-02 10:10:42
○ 2026-03-27 19:23:44

○MXcombustech.com.br2015-12-17 → 2017-02-18 · 5 obs

○ 2015-09-23 23:28:26
● 2015-12-17 18:27:36
● 2017-02-18 14:39:40
○ 2020-02-02 10:10:42
○ 2026-03-27 19:23:44

○MXmx-vip-01.kinghost.net2015-05-08 → 2015-09-23 · 4 obs

● 2015-05-08 15:00:52
● 2015-09-23 23:28:26
○ 2015-12-17 18:27:36
○ 2026-03-27 19:23:44

○MXmx-vip-02.kinghost.net2015-05-08 → 2015-09-23 · 4 obs

● 2015-05-08 15:00:52
● 2015-09-23 23:28:26
○ 2015-12-17 18:27:36
○ 2026-03-27 19:23:44

●MXmx.a.locaweb.com.br2020-02-02 → 2026-03-27 · 3 obs

○ 2017-02-18 14:39:40
● 2020-02-02 10:10:42
● 2026-03-27 19:23:44

●MXmx.b.locaweb.com.br2020-02-02 → 2026-03-27 · 3 obs

○ 2017-02-18 14:39:40
● 2020-02-02 10:10:42
● 2026-03-27 19:23:44

●MXmx.core.locaweb.com.br2020-02-02 → 2026-03-27 · 3 obs

○ 2017-02-18 14:39:40
● 2020-02-02 10:10:42
● 2026-03-27 19:23:44

●MXmx.jk.locaweb.com.br2020-02-02 → 2026-03-27 · 3 obs

○ 2017-02-18 14:39:40
● 2020-02-02 10:10:42
● 2026-03-27 19:23:44

●A104.21.54.952026-02-25 → 2026-03-27 · 3 obs

○ 2020-02-02 10:10:42
● 2026-02-25 07:40:18
● 2026-03-27 19:23:44

○A108.179.253.2182015-12-17 → 2017-02-18 · 5 obs

○ 2015-09-23 23:28:26
● 2015-12-17 18:27:36
● 2017-02-18 14:39:40
○ 2020-02-02 10:10:42
○ 2026-03-27 19:23:44

●A172.67.137.1872026-02-25 → 2026-03-27 · 3 obs

○ 2020-02-02 10:10:42
● 2026-02-25 07:40:18
● 2026-03-27 19:23:44

○A177.185.196.542015-09-23 → 2015-09-23 · 4 obs

○ 2015-05-08 15:00:52
● 2015-09-23 23:28:26
○ 2015-12-17 18:27:36
○ 2026-03-27 19:23:44

○A177.185.196.742015-05-08 → 2015-05-08 · 3 obs

● 2015-05-08 15:00:52
○ 2015-09-23 23:28:26
○ 2026-03-27 19:23:44

○A179.188.11.372020-02-02 → 2020-02-02 · 4 obs

○ 2017-02-18 14:39:40
● 2020-02-02 10:10:42
○ 2026-02-25 07:40:18
○ 2026-03-27 19:23:44

●A2606:4700:3035::ac43:89bb2026-02-25 → 2026-03-27 · 3 obs

○ 2020-02-02 10:10:42
● 2026-02-25 07:40:18
● 2026-03-27 19:23:44

●A2606:4700:3037::6815:365f2026-02-25 → 2026-03-27 · 3 obs

○ 2020-02-02 10:10:42
● 2026-02-25 07:40:18
● 2026-03-27 19:23:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	b.dns.br, e.dns.br, d.dns.br, a.dns.br...	-
combustech.com.br	aaden.ns.cloudflare.com, elaine.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.152

NS records: aaden.ns.cloudflare.com, elaine.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 752ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.137.187, 104.21.54.95`
AAAA	2	`2606:4700:3037::6815:365f, 2606:4700:3035::ac43:89bb`
NS	2	`aaden.ns.cloudflare.com, elaine.ns.cloudflare.com`
MX	4	`mx.core.locaweb.com.br (pri: 10), mx.a.locaweb.com.br (pri: 20)...`
TXT	2	`ca3-5936f5b156024fd3b611718db497b670, v=spf1 include:_spf.locaweb.com.br -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`aaden.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

combustech.com.br resolves to four IP numbers: 2606:4700:3035::ac43:89bb, 2606:4700:3037::6815:365f, 104.21.54.95 and 172.67.137.187.

Other host names such as ldfsz.com, server2.itmp.eu, bandse.com, thenewpiratebay.org and tkhengineering.com.sg share IPs with combustech.com.br.

Name Servers

combustech.com.br is delegated to two name servers: aaden.ns.cloudflare.com and elaine.ns.cloudflare.com.

combustech.com.br shares the same name server setup with other domains, such as dotnetnotts.co.uk, sawo.dk and fcdk.org.

combustech.com.br at least partially shares name servers with other domains, for instance shannonberrey.com, apoint.co.il, goends.com, legendarysurfers.com and reviewus.co.in.

These name servers are commonly used together with mustafa.ns.cloudflare.com, brenna.ns.cloudflare.com and odin.ns.cloudflare.com.

Host names with six IP numbers:

aaden.ns.cloudflare.com points to 2606:4700:58::a29f:2c5c, 2803:f800:50::6ca2:c35c, 2a06:98c1:50::ac40:235c, 108.162.195.92, 162.159.44.92 and 172.64.35.92.

elaine.ns.cloudflare.com points to 2606:4700:50::adf5:3a98, 2803:f800:50::6ca2:c098, 2a06:98c1:50::ac40:2098, 108.162.192.152, 172.64.32.152 and 173.245.58.152.

Mail Servers

Four mail servers handle combustech.com.br: mx.a.locaweb.com.br, mx.b.locaweb.com.br, mx.core.locaweb.com.br and mx.jk.locaweb.com.br.

combustech.com.br shares at least partially some mail servers with other domains, including sameg.com.br, triche.com.br, bouquetgarni.com.br, unifila.co.uk and surftravel.com.br.

Host names with one IP number:

mx.a.locaweb.com.br points to 186.202.4.42.

mx.b.locaweb.com.br points to 177.153.23.242.

mx.core.locaweb.com.br points to 177.153.23.241.

mx.jk.locaweb.com.br points to 200.234.204.130.

combustech.com.br - robtex.com