corejus.com - dns.ninja
corejus.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 186.202.157.79🇧🇷 Locaweb186.202.156.0/22 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.a.locaweb.com.br ⭐ | ||||||
| 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 ⭐ | ||||||
| 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 | v=spf1 include:_spf.locaweb.com.br ?all | ||||||
| SOA | ns1.locaweb.com.brhostmaster@locaweb.com.br 2022-03-10 #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=1786961259 | ||||||
Same first word
corejus.com |
Similar names
juscore.com |
corjesu.info |
jsource.ca |
scjoure.nl |
jcrouse.org |
corjesu.cz |
jecours.com |
juresco.com |
jocures.com |
jerusco.com |
corjesu.eu |
serjuco.es |
corjesu.org.br |
jsource.com |
jsource.co.jp |
corjesu.org |
DNS History
8 records (7 active, 1 former)
●NSns1.locaweb.com.br2016-12-20 → 2026-08-17 · 2 obs
● 2026-08-17 10:23:44
●NSns2.locaweb.com.br2016-12-20 → 2026-08-17 · 2 obs
● 2026-08-17 10:23:44
●NSns3.locaweb.com.br2016-12-20 → 2026-08-17 · 2 obs
● 2026-08-17 10:23:44
●MXmx.a.locaweb.com.br2016-12-20 → 2026-08-17 · 2 obs
● 2026-08-17 10:23:44
●MXmx.b.locaweb.com.br2016-12-20 → 2026-08-17 · 2 obs
● 2026-08-17 10:23:44
●MXmx.jk.locaweb.com.br2016-12-20 → 2026-08-17 · 2 obs
● 2026-08-17 10:23:44
○A186.202.153.1412016-12-20 → 2017-10-26 · 4 obs
● 2017-10-26 21:55:40
○ 2026-03-14 01:39:36
○ 2026-08-17 10:23:44
●A186.202.157.792026-03-14 → 2026-08-17 · 3 obs
● 2026-03-14 01:39:36
● 2026-08-17 10:23:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| corejus.com | ns1.locaweb.com.br, ns2.locaweb.com.br, ns3.locaweb.com.br | - |
✅ Authoritative Response
Server:186.202.8.254
NS records: ns1.locaweb.com.br, ns2.locaweb.com.br, ns3.locaweb.com.br
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for corejus.com (unsigned zone)
⏱️ Timing
Total: 3138ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 186.202.157.79 |
| NS | 3 | ns2.locaweb.com.br, ns1.locaweb.com.br... |
| MX | 3 | mx.a.locaweb.com.br (pri: 10), mx.b.locaweb.com.br (pri: 10)... |
| TXT | 1 | v=spf1 include:_spf.locaweb.com.br ?all |
| SOA | 1 | ns1.locaweb.com.br hostmaster.locaweb.co |
Analysis
IP Addresses
corejus.com points to a single IP number: 186.202.157.79.
Additional host names — 4allcom.com.br, cupom150.com, itstr.com.br and two others — share IP numbers with corejus.com.
Name Servers
Three name servers are authoritative for corejus.com: ns1.locaweb.com.br, ns2.locaweb.com.br and ns3.locaweb.com.br.
corejus.com has at least partial name server overlap with other domains, such as sabemat.com.br, minhavisaodocinema.com.br, polyens.com and two others.
ns1.locaweb.com.br resolves to 186.202.8.254 and 2804:218:7000:0:186:202:8:254. ns2.locaweb.com.br resolves to 187.45.248.254 and 2804:218:7001:0:187:45:248:254. ns3.locaweb.com.br resolves to 189.126.101.254 and 2804:218:7002:0:189:126:101:254. All three hostnames point to two IP numbers each.
Mail Servers
corejus.com has three mail servers: mx.a.locaweb.com.br, mx.b.locaweb.com.br and mx.jk.locaweb.com.br.
corejus.com shares mail servers — at least in part — with other domains, including ceifeiros.ad.org.br, belacintra.com.br, kensize.com and two others.
These mail servers are frequently seen alongside the mail servers mx.core.locaweb.com.br.
Three hostnames, one IP address apiece: mx.a.locaweb.com.br resolves to 186.202.4.42, mx.b.locaweb.com.br resolves to 177.153.23.242 and mx.jk.locaweb.com.br resolves to 200.234.204.130.