rftech.com.br - dns.ninja

`rftech.com.br`

DNSSEC	⚠️ Not signed
A	191.252.83.188^{🇧🇷 Locaweb191.252.80.0/22 Servicos de Internet SA}
NS	`ns1.locaweb.com.br` ⭐
		A	2804:218:7000:0:186:202:8:254^{🇧🇷 Locaweb2804:218:7000::/48}
		A	186.202.8.254^{🇧🇷 Locaweb186.202.8.0/24 Servicos de Internet SA}
NS	`ns2.locaweb.com.br`
		A	2804:218:7001:0:187:45:248:254^{🇧🇷 Locaweb2804:218:7001::/48}
		A	187.45.248.254^{🇧🇷 Locaweb187.45.248.0/24 Servicos de Internet SA}
NS	`ns3.locaweb.com.br`
		A	2804:218:7002:0:189:126:101:254^{🇧🇷 Locaweb2804:218:7002::/48}
		A	189.126.101.254^{🇧🇷 Locaweb189.126.101.0/24 Servicos de Internet SA}
MX	`mx.b.locaweb.com.br` ⭐
		A	177.153.23.242^{🇧🇷 Locaweb177.153.0.0/19 Servicos de Internet SA}
			PTR	`mx.b.locaweb.com.br`
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.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	`v=spf1 include:_spf.locaweb.com.br -all`
SOA	`ns1.locaweb.com.br`postmaster@locaweb.com.br 2026-07-13 #4

`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=2026199078

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

Same first word

rftech.co.za

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rftech.us

rftech.awsapps.com

rftech.co.kr

rftech.com

rftech.org

rftech.de

rftech.ca

rftech.ro

rftech.net.au

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DNS History

19 records (8 active, 11 former)

○NSns1.dominios.uol.com.br2015-06-26 → 2017-10-13 · 4 obs

● 2015-06-26 19:22:40
● 2017-10-13 14:59:02
○ 2026-03-27 23:21:34
○ 2026-07-18 03:16:30

●NSns1.locaweb.com.br2026-03-27 → 2026-07-18 · 3 obs

○ 2017-10-13 14:59:02
● 2026-03-27 23:21:34
● 2026-07-18 03:16:30

○NSns2.dominios.uol.com.br2015-06-26 → 2017-10-13 · 4 obs

● 2015-06-26 19:22:40
● 2017-10-13 14:59:02
○ 2026-03-27 23:21:34
○ 2026-07-18 03:16:30

●NSns2.locaweb.com.br2026-03-27 → 2026-07-18 · 3 obs

○ 2017-10-13 14:59:02
● 2026-03-27 23:21:34
● 2026-07-18 03:16:30

○NSns3.dominios.uol.com.br2015-06-26 → 2017-10-13 · 4 obs

● 2015-06-26 19:22:40
● 2017-10-13 14:59:02
○ 2026-03-27 23:21:34
○ 2026-07-18 03:16:30

●NSns3.locaweb.com.br2026-03-27 → 2026-07-18 · 3 obs

○ 2017-10-13 14:59:02
● 2026-03-27 23:21:34
● 2026-07-18 03:16:30

○MXalt1.aspmx.l.google.com2015-06-26 → 2017-10-13 · 4 obs

● 2015-06-26 19:22:40
● 2017-10-13 14:59:02
○ 2026-03-27 23:21:34
○ 2026-07-18 03:16:30

○MXalt2.aspmx.l.google.com2015-06-26 → 2017-10-13 · 4 obs

● 2015-06-26 19:22:40
● 2017-10-13 14:59:02
○ 2026-03-27 23:21:34
○ 2026-07-18 03:16:30

○MXaspmx.l.google.com2015-06-26 → 2017-10-13 · 4 obs

● 2015-06-26 19:22:40
● 2017-10-13 14:59:02
○ 2026-03-27 23:21:34
○ 2026-07-18 03:16:30

○MXaspmx2.googlemail.com2015-06-26 → 2017-10-13 · 4 obs

● 2015-06-26 19:22:40
● 2017-10-13 14:59:02
○ 2026-03-27 23:21:34
○ 2026-07-18 03:16:30

○MXaspmx3.googlemail.com2015-06-26 → 2017-10-13 · 4 obs

● 2015-06-26 19:22:40
● 2017-10-13 14:59:02
○ 2026-03-27 23:21:34
○ 2026-07-18 03:16:30

○MXaspmx4.googlemail.com2015-06-26 → 2017-10-13 · 4 obs

● 2015-06-26 19:22:40
● 2017-10-13 14:59:02
○ 2026-03-27 23:21:34
○ 2026-07-18 03:16:30

○MXaspmx5.googlemail.com2015-06-26 → 2017-10-13 · 4 obs

● 2015-06-26 19:22:40
● 2017-10-13 14:59:02
○ 2026-03-27 23:21:34
○ 2026-07-18 03:16:30

●MXmx.a.locaweb.com.br2026-03-27 → 2026-07-18 · 3 obs

○ 2017-10-13 14:59:02
● 2026-03-27 23:21:34
● 2026-07-18 03:16:30

●MXmx.b.locaweb.com.br2026-03-27 → 2026-07-18 · 3 obs

○ 2017-10-13 14:59:02
● 2026-03-27 23:21:34
● 2026-07-18 03:16:30

●MXmx.core.locaweb.com.br2026-03-27 → 2026-07-18 · 3 obs

○ 2017-10-13 14:59:02
● 2026-03-27 23:21:34
● 2026-07-18 03:16:30

●MXmx.jk.locaweb.com.br2026-03-27 → 2026-07-18 · 3 obs

○ 2017-10-13 14:59:02
● 2026-03-27 23:21:34
● 2026-07-18 03:16:30

○A187.17.111.982015-06-26 → 2017-10-13 · 4 obs

● 2015-06-26 19:22:40
● 2017-10-13 14:59:02
○ 2026-03-27 23:21:34
○ 2026-07-18 03:16:30

●A191.252.83.1882026-03-27 → 2026-07-18 · 3 obs

○ 2017-10-13 14:59:02
● 2026-03-27 23:21:34
● 2026-07-18 03:16:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	f.dns.br, d.dns.br, b.dns.br, e.dns.br...	-
rftech.com.br	ns3.locaweb.com.br, ns1.locaweb.com.br, ns2.locaweb.com.br	6 records

✅ Authoritative Response

Server:189.126.101.254

NS records: ns3.locaweb.com.br, ns1.locaweb.com.br, ns2.locaweb.com.br

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 566ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`191.252.83.188`
NS	3	`ns1.locaweb.com.br, ns3.locaweb.com.br...`
MX	4	`mx.b.locaweb.com.br (pri: 10), mx.a.locaweb.com.br (pri: 20)...`
TXT	1	`v=spf1 include:_spf.locaweb.com.br -all`
SOA	1	`ns1.locaweb.com.br postmaster.locaweb.co`

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (ns3.locaweb.com.br, ns2.locaweb.com.br, ns1.locaweb.com.br...)

Analysis

IP Addresses

rftech.com.br points to a single IP number: 191.252.83.188.

Additional host names — vidaplena.com.br, loja.ovelha.cafe, gfoppel.com and two others — share IP numbers with rftech.com.br.

Name Servers

DNS for rftech.com.br is handled by three authoritative name servers: ns1.locaweb.com.br, ns2.locaweb.com.br and ns3.locaweb.com.br.

There is at least partial name server overlap between rftech.com.br and other domains — altinamedia.com, cepavi.eng.br, previdencia.alvoradadooeste.ro.gov.br and two more among them.

Three hostnames — ns1.locaweb.com.br, ns2.locaweb.com.br and ns3.locaweb.com.br — each have two IP addresses: ns1.locaweb.com.br has 186.202.8.254 and 2804:218:7000:0:186:202:8:254, ns2.locaweb.com.br has 187.45.248.254 and 2804:218:7001:0:187:45:248:254, and ns3.locaweb.com.br has 189.126.101.254 and 2804:218:7002:0:189:126:101:254.

Mail Servers

Mail for rftech.com.br is handled by four mail servers: mx.a.locaweb.com.br, mx.b.locaweb.com.br, mx.core.locaweb.com.br and mx.jk.locaweb.com.br.

rftech.com.br shares mail servers — at least in part — with other domains, including luz.com.br, previewdesign.com.br, aajump.com.br and two others.

mx.a.locaweb.com.br, mx.b.locaweb.com.br, mx.core.locaweb.com.br and mx.jk.locaweb.com.br each resolve to one IP address: mx.a.locaweb.com.br resolves to 186.202.4.42, mx.b.locaweb.com.br resolves to 177.153.23.242, mx.core.locaweb.com.br resolves to 177.153.23.241 and mx.jk.locaweb.com.br resolves to 200.234.204.130.