cref4.gov.br - robtex.com
cref4.gov.br
| DNSSEC | ⚠️ Not signed | ||||||
| A | 177.154.155.117🇧🇷 Equinix177.154.128.0/19 Connect SP | ||||||
| PTR | 117.155.154.177.static.sp2.alog.com.br | ||||||
| NS | ns10.llevon.com.br ⭐ | ||||||
| A | 187.0.205.8🇧🇷 Equinix187.0.192.0/20 Connect RJ | ||||||
| PTR | 8.205.0.187.static.alog.com.br | ||||||
| NS | ns20.llevon.com.br | ||||||
| A | 187.0.205.9🇧🇷 Equinix187.0.192.0/20 Connect RJ | ||||||
| PTR | 9.205.0.187.static.alog.com.br | ||||||
| MX | cref4.gov.br ⭐ | ||||||
| A | 177.154.155.117🇧🇷 Equinix177.154.128.0/19 Connect SP | ||||||
| PTR | 117.155.154.177.static.sp2.alog.com.br | ||||||
| TXT | v=spf1 ip4:177.154.155.117 +a +mx +ip4:187.0.205.22 ip4:187.0.205.23 ip4:187.... | ||||||
| SOA | ns10.llevon.com.brservidores@llevon.com.br 2025-07-29 #0 | ||||||
gov.br
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2804:151:3:2:161:148:164:31🇧🇷 AS109542804:150::/30 ITX-VOGEL | ||||||
| A | 161.148.164.31🇧🇷 AS10954161.148.164.0/22 | ||||||
| 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 | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | a.dns.brhostmaster@registro.br serial=2026117062 | ||||||
rank #98 in the tld
this domain is the Brazilian government's official second‑level domain used as an umbrella for government websites and digital services. It hosts the main government portal (gov.br) and provides a centralized entry point for public services, information, and authentication across federal, state, and municipal bodies.WOT: SAFE (71/100)
MX for
cref4.gov.br |
Subdomains
mail.cref4.gov.br |
cpcalendars.cref4.gov.br |
cpanel.cref4.gov.br |
webmail.cref4.gov.br |
webdisk.cref4.gov.br |
cpcontacts.cref4.gov.br |
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns10.llevon.com.br2026-03-28 → 2026-04-27 · 2 obs
● 2026-04-27 02:37:30
●NSns20.llevon.com.br2026-03-28 → 2026-04-27 · 2 obs
● 2026-04-27 02:37:30
●MXcref4.gov.br2026-03-28 → 2026-04-27 · 2 obs
● 2026-04-27 02:37:30
●A177.154.155.1172026-03-28 → 2026-04-27 · 2 obs
● 2026-04-27 02:37:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| br | f.dns.br, d.dns.br, b.dns.br, e.dns.br... | - |
| cref4.gov.br | ns20.llevon.com.br, ns10.llevon.com.br | - |
✅ Authoritative Response
Server:187.0.205.9
NS records: ns20.llevon.com.br, ns10.llevon.com.br
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cref4.gov.br (unsigned zone)
⏱️ Timing
Total: 1073ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 177.154.155.117 |
| NS | 2 | ns10.llevon.com.br, ns20.llevon.com.br |
| MX | 1 | cref4.gov.br (pri: 0) |
| TXT | 1 | v=spf1 ip4:177.154.155.117 +a +mx +ip4:1 |
| SOA | 1 | ns10.llevon.com.br servidores.llevon.com |
Analysis
Hierarchy
cref4.gov.br is a parent of mail.cref4.gov.br, cpcalendars.cref4.gov.br, cpanel.cref4.gov.br, webmail.cref4.gov.br and webdisk.cref4.gov.br, plus a few other host names.
Mail Server Role
cref4.gov.br serves as the mail server for cref4.gov.br.
IP Addresses
cref4.gov.br resolves to one IP number: 177.154.155.117.
Other host names, for instance cpcalendars.cref4.gov.br, cpanel.cref4.gov.br, cref-sp.gov.br, crefsp.gov.br and webmail.cref4.gov.br share IP numbers with cref4.gov.br.
Name Servers
cref4.gov.br's delegation uses two name servers: ns10.llevon.com.br and ns20.llevon.com.br.
cref4.gov.br uses the same name server setup as other domains, such as mail.crefsp.gov.br, syncserver.com.br, acc.ind.br, cpadvogadosassociados.com.br and crtrrj.gov.br.
cref4.gov.br at least partially shares name servers with other domains, including bravai.com.br, h01r18.llevon.com.br, ydconfeccoes.com.br, fragataeantunes.com.br and llevon.com.br.
These name servers are commonly used with ns30.llevon.com.br, dns71.centraldedominio.com.br, dns72.centraldedominio.com.br, ns40.llevon.com.br, ns14.llevon.com.br and h01r14.llevon.com.br.
Host names with a single IP address: ns10.llevon.com.br points to 187.0.205.8; ns20.llevon.com.br points to 187.0.205.9.
Mail Servers
cref4.gov.br is handled by a single mail server, cref4.gov.br.
Host name cref4.gov.br resolves to a single IP: 177.154.155.117.