alfconstrutora.com - robtex.com
alfconstrutora.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 200.210.238.142🇧🇷 EMBRATEL200.210.0.0/16 CLARO S.A. | ||||||
| NS | ns21.sisbr.net ⭐ ⚠️ Not in parent delegation | ||||||
| A | 200.210.238.142🇧🇷 EMBRATEL200.210.0.0/16 CLARO S.A. | ||||||
| NS | ns21.imobibrasil.com.br ⚠️ Not in zone NS records | ||||||
| A | 204.216.159.199🇧🇷 ORACLE-OCI-31898204.216.128.0/18 Oracle Corporation | ||||||
| NS | ns21.imobibrasil.net ⚠️ Not in parent delegation | ||||||
| A | 204.216.159.199🇧🇷 ORACLE-OCI-31898204.216.128.0/18 Oracle Corporation | ||||||
| NS | ns22.imobibrasil.com.br ⚠️ Not in zone NS records | ||||||
| A | 204.216.154.5🇧🇷 ORACLE-OCI-31898204.216.128.0/18 Oracle Corporation | ||||||
| NS | ns22.imobibrasil.net ⚠️ Not in parent delegation | ||||||
| A | 204.216.154.5🇧🇷 ORACLE-OCI-31898204.216.128.0/18 Oracle Corporation | ||||||
| NS | ns22.sisbr.net ⚠️ Not in parent delegation | ||||||
| A | 187.73.192.99🇧🇷 ASN-CABOTELECOM187.73.192.0/24 Prefixo em "Customer Cone" da Link Brasil (AS271253). | ||||||
| PTR | stetnet192-99.datacenter.stetnet.com.br | ||||||
| MX | mx.alfconstrutora.com ⭐ | ||||||
| A | 200.234.222.116🇧🇷 Locaweb200.234.220.0/22 Servicos de Internet SA | ||||||
| PTR | mx01.admincontrolpanel.com | ||||||
| TXT | v=spf1 ip4:200.210.238.142 ip4:10.100.0.181 ip4:200.210.238.142 ip4:187.73.19... | ||||||
| SOA | ns21.sisbr.netsuporte@sysbrasil.com.br 2025-07-24 #1 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1775252497 | ||||||
Subdomains
mx.alfconstrutora.com |
Same first word
alfconstrutora.com |
Similar names
DNS History
9 records (8 active, 1 former)
●NSns21.imobibrasil.com.br2016-12-20 → 2026-04-03 · 2 obs
● 2026-04-03 21:59:14
●NSns21.imobibrasil.net2016-12-20 → 2026-04-03 · 5 obs
● 2026-02-26 22:58:08
○ 2026-03-17 08:37:26
● 2026-04-03 21:59:10
● 2026-04-03 21:59:14
●NSns21.sisbr.net2026-02-16 → 2026-04-03 · 6 obs
● 2026-02-16 17:20:10
● 2026-02-26 22:58:08
○ 2026-03-17 08:37:26
● 2026-04-03 21:59:10
● 2026-04-03 21:59:14
●NSns22.imobibrasil.com.br2016-12-20 → 2026-04-03 · 2 obs
● 2026-04-03 21:59:14
●NSns22.imobibrasil.net2016-12-20 → 2026-04-03 · 5 obs
● 2026-02-26 22:58:08
○ 2026-03-17 08:37:26
● 2026-04-03 21:59:10
● 2026-04-03 21:59:14
●NSns22.sisbr.net2026-02-16 → 2026-04-03 · 6 obs
● 2026-02-16 17:20:10
● 2026-02-26 22:58:08
○ 2026-03-17 08:37:26
● 2026-04-03 21:59:10
● 2026-04-03 21:59:14
●MXmx.alfconstrutora.com2016-12-20 → 2026-04-03 · 5 obs
● 2026-02-26 22:58:08
○ 2026-03-17 08:37:26
● 2026-04-03 21:59:10
● 2026-04-03 21:59:14
○A184.172.148.242016-12-20 → 2017-12-14 · 4 obs
● 2017-12-14 07:49:16
○ 2026-02-16 17:20:10
○ 2026-04-03 21:59:14
●A200.210.238.1422026-02-16 → 2026-04-03 · 6 obs
● 2026-02-16 17:20:10
● 2026-02-26 22:58:08
○ 2026-03-17 08:37:26
● 2026-04-03 21:59:10
● 2026-04-03 21:59:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, a.gtld-servers.net, j.gtld-servers.net, i.gtld-servers.net... | - |
| alfconstrutora.com | ns21.imobibrasil.com.br, ns22.imobibrasil.com.br | - |
✅ Authoritative Response
Server:204.216.159.199
NS records: ns21.imobibrasil.com.br, ns22.imobibrasil.com.br
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for alfconstrutora.com (unsigned zone)
⏱️ Timing
Total: 681ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 200.210.238.142 |
| NS | 4 | ns22.imobibrasil.net, ns22.sisbr.net... |
| MX | 1 | mx.alfconstrutora.com (pri: 10) |
| TXT | 1 | v=spf1 ip4:200.210.238.142 ip4:10.100.0. |
| SOA | 1 | ns21.sisbr.net suporte.sysbrasil.com.br |
Analysis
Hierarchy
The parent of mx.alfconstrutora.com is alfconstrutora.com.
IP Addresses
alfconstrutora.com points to a single IP: 200.210.238.142.
Other host names, for instance _dc-mx.ef3bb486b086.francoimoveis.cim.br, robertomamede.com.br, imoveisreal.com.br, joseloimoveis.com.br and _dc-mx.b39fe5cbbceb.masimoveis.com.br share IP numbers with alfconstrutora.com.
Name Servers
alfconstrutora.com is delegated to six name servers: ns21.imobibrasil.net, ns22.imobibrasil.net, ns21.sisbr.net, ns22.sisbr.net, ns21.imobibrasil.com.br and ns22.imobibrasil.com.br.
alfconstrutora.com partially shares name servers with other domains; examples include somma.com.br, imoteto.com.br, sergioquintanilhaneto.com.br, imobiliariasantarita.com.br and novamorada.com.br.
Hostnames with a single IP
- ns21.imobibrasil.net points to 204.216.159.199
- ns22.imobibrasil.net points to 204.216.154.5
- ns21.sisbr.net points to 200.210.238.142
- ns22.sisbr.net points to 187.73.192.99
- ns21.imobibrasil.com.br points to 204.216.159.199
- ns22.imobibrasil.com.br points to 204.216.154.5
Hostnames pointing to 204.216.159.199: ns21.imobibrasil.net and ns21.imobibrasil.com.br
Hostnames pointing to 204.216.154.5: ns22.imobibrasil.net and ns22.imobibrasil.com.br
Mail Servers
alfconstrutora.com is handled by a single mail server, mx.alfconstrutora.com.
mx.alfconstrutora.com points to a single IP: 200.234.222.116.