`robertocosta.com.br`

DNSSEC	⚠️ Not signed
A	200.155.159.45^{🇧🇷 UNSPECIFIED200.155.158.0/23 Telium Networks}
		PTR	`srv01.smartsupport.com.br`
NS	`srv01.smartsupport.com.br` ⭐
		A	200.155.159.45^{🇧🇷 UNSPECIFIED200.155.158.0/23 Telium Networks}
			PTR	`srv01.smartsupport.com.br`
NS	`srv06.smartsupport.com.br`
		A	161.35.106.210^{🇺🇸 DIGITALOCEAN161.35.96.0/20 DigitalOcean}
			PTR	`srv06.smartsupport.com.br`
MX	`mail.robertocosta.com.br` ⭐
		A	200.155.159.68^{🇧🇷 UNSPECIFIED200.155.158.0/23 Telium Networks}
			PTR	`srv03.smartsupport.com.br`
TXT	`v=spf1 include:spf.smartsupport.com.br mx ~all`
SOA	`srv01.smartsupport.com.br`hostmaster@smartsupport.com.br 2024-06-06 #1

`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=2026133044

rank #536330 globally
rank #4055 in the tld
WOT: SAFE (69/100)

Subdomains

mail.robertocosta.com.br

Same first word

robertocosta.com.br

DNS History

7 records (4 active, 3 former)

○NSns1.robertocosta.com.br2015-07-22 → 2017-04-09 · 4 obs

● 2015-07-22 17:46:12
● 2017-04-09 09:52:52
○ 2026-03-13 08:11:32
○ 2026-05-13 02:16:28

○NSns2.robertocosta.com.br2015-07-22 → 2017-04-09 · 4 obs

● 2015-07-22 17:46:12
● 2017-04-09 09:52:52
○ 2026-03-13 08:11:32
○ 2026-05-13 02:16:28

●NSsrv01.smartsupport.com.br2026-03-13 → 2026-05-13 · 3 obs

○ 2017-04-09 09:52:52
● 2026-03-13 08:11:32
● 2026-05-13 02:16:28

●NSsrv06.smartsupport.com.br2026-03-13 → 2026-05-13 · 3 obs

○ 2017-04-09 09:52:52
● 2026-03-13 08:11:32
● 2026-05-13 02:16:28

●MXmail.robertocosta.com.br2015-07-22 → 2026-05-13 · 2 obs

● 2015-07-22 17:46:12
● 2026-05-13 02:16:28

○A173.224.123.1512015-07-22 → 2017-04-09 · 4 obs

● 2015-07-22 17:46:12
● 2017-04-09 09:52:52
○ 2026-03-13 08:11:32
○ 2026-05-13 02:16:28

●A200.155.159.452026-03-13 → 2026-05-13 · 3 obs

○ 2017-04-09 09:52:52
● 2026-03-13 08:11:32
● 2026-05-13 02:16:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	a.dns.br, e.dns.br, c.dns.br, d.dns.br...	-
robertocosta.com.br	srv01.smartsupport.com.br, srv06.smartsupport.com.br	-

✅ Authoritative Response

Server:200.155.159.45

NS records: srv01.smartsupport.com.br, srv06.smartsupport.com.br

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 892ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`200.155.159.45`
NS	2	`srv01.smartsupport.com.br, srv06.smartsupport.com.br`
MX	1	`mail.robertocosta.com.br (pri: 5)`
TXT	1	`v=spf1 include:spf.smartsupport.com.br m`
SOA	1	`srv01.smartsupport.com.br hostmaster.sma`

Analysis

Hierarchy

The parent of mail.robertocosta.com.br is robertocosta.com.br.

IP Addresses

robertocosta.com.br points to IP number: 200.155.159.45.

Other host names such as ns03.smartsupport.com.br, www.smartsupport.com.br, centroms.com.br, baggioarq.com and unibind.com.br share IPs with robertocosta.com.br.

Name Servers

robertocosta.com.br is delegated to two name servers: srv01.smartsupport.com.br and srv06.smartsupport.com.br.

robertocosta.com.br shares the same name server setup as gaia-rs.ind.br, pandrolbrasil.com.br, comexigroup.com.br, gadv.com.br and sulpetro.com.br.

Host names with a single IP:

srv01.smartsupport.com.br points to 200.155.159.45.

srv06.smartsupport.com.br points to 161.35.106.210.

Mail Servers

robertocosta.com.br is handled by a single mail server, mail.robertocosta.com.br.

mail.robertocosta.com.br points to a single IP: 200.155.159.68.

robertocosta.com.br - robtex.com