cursosbr.com - robtex.com

cursosbr.com

DNSSEC⚠️ Not signed
A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix
A2600:1f18:4ae:c606:78d4:4260:db4e:aeee🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix
A13.223.25.84🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix
A54.243.117.197🇺🇸 Amazon54.242.0.0/15 EC2 IAD prefix
NSns1.namebrightdns.com ⭐
A2600:1f18:683a:ae1a:34d8:9aa4:f653:1ca0🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1a:77e3:70dc:d7e:bcec🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A3.81.4.12🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix
PTRec2-3-81-4-12.compute-1.amazonaws.com
A54.91.4.171🇺🇸 Amazon54.90.0.0/15 EC2 IAD prefix
PTRec2-54-91-4-171.compute-1.amazonaws.com
A204.236.252.8🇺🇸 Amazon204.236.224.0/19 Execution Services
PTRec2-204-236-252-8.compute-1.amazonaws.com
NSnsg1.namebrightdns.com
A2600:1f18:683a:ae1a:180a:eaa0:98f4:64d8🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1a:3225:8a68:a4e5:e20b🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:bf1a:3581:5545:a15d🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A3.84.96.195🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix
PTRec2-3-84-96-195.compute-1.amazonaws.com
A34.229.61.165🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix
PTRec2-34-229-61-165.compute-1.amazonaws.com
A34.234.97.191🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix
PTRec2-34-234-97-191.compute-1.amazonaws.com
A52.91.197.160🇺🇸 Amazon52.90.0.0/15 EC2 IAD prefix
PTRec2-52-91-197-160.compute-1.amazonaws.com
A54.81.79.209🇺🇸 Amazon54.80.0.0/14 EC2 IAD prefix
PTRec2-54-81-79-209.compute-1.amazonaws.com
A54.91.57.12🇺🇸 Amazon54.90.0.0/15 EC2 IAD prefix
PTRec2-54-91-57-12.compute-1.amazonaws.com
A54.175.237.59🇺🇸 Amazon54.174.0.0/15 EC2 IAD prefix
PTRec2-54-175-237-59.compute-1.amazonaws.com
A54.196.100.248🇺🇸 Amazon54.196.0.0/15 EC2 IAD 54.196.0.0/15
PTRec2-54-196-100-248.compute-1.amazonaws.com
A54.198.0.235🇺🇸 Amazon54.198.0.0/16 EC2 IAD prefix
PTRec2-54-198-0-235.compute-1.amazonaws.com
A54.209.182.252🇺🇸 Amazon54.208.0.0/15 EC2 IAD prefix
PTRec2-54-209-182-252.compute-1.amazonaws.com
NSnsg2.namebrightdns.com
A2600:1f18:683a:ae1a:2607:ed1c:3b72:e7f4🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1a:5264:a5f4:2244:ab6c🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1a:b112:e521:202f:80f6🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:2cdc:4a86:59f5:b3f4🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:7bd7:3433:72e2:b3a0🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:b79a:8bac:5855:a603🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A3.93.61.76🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix
PTRec2-3-93-61-76.compute-1.amazonaws.com
A18.209.106.44🇺🇸 Amazon18.208.0.0/13 EC2 IAD prefix
PTRec2-18-209-106-44.compute-1.amazonaws.com
A23.20.211.132🇺🇸 Amazon23.20.0.0/15 EC2 IAD prefix
PTRec2-23-20-211-132.compute-1.amazonaws.com
A35.173.181.189🇺🇸 Amazon35.168.0.0/13 EC2 IAD prefix
PTRec2-35-173-181-189.compute-1.amazonaws.com
A54.210.78.10🇺🇸 Amazon54.210.0.0/16 EC2 IAD VPC Address Range
PTRec2-54-210-78-10.compute-1.amazonaws.com
A54.227.104.240🇺🇸 Amazon54.226.0.0/15 EC2 IAD prefix
PTRec2-54-227-104-240.compute-1.amazonaws.com
TXTafternic-verification-G9G3tM8T8EwEizzPzjGJWF
TXTv=spf1 -all
SOAns1.namebrightdns.comdns@namebright.com 2026-04-26 #1

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1777208011

Same first word

cursosbr.com
cursosbr.com.br
cursosbr.net

Similar names

brcursos.com.br

DNS History

23 records (7 active, 16 former)

20162017201820192020202120222023202420252026NSns1.namebrightdns.comnsg1.namebrightdns.comnsg2.namebrightdns.comns1.sedoparking.comns2.namebrightdns.comns2.sedoparking.comMXmail.nickstel.comA13.223.25.842600:1f18:4ae:c605:dd5d:b838:5816:d7fb2600:1f18:4ae:c606:78d4:4260:db4e:aeee54.243.117.19734.199.151.16352.20.154.352.200.243.12354.152.144.24354.174.31.25454.208.74.21554.209.90.8154.85.54.2972.52.4.119CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.comhdredirect-lb3-890977680.us-east-1.elb.amazonaws.comhdredirect-lb5-1afb6e2973825a56.elb.us-east-1.amazonaws.com
●NSns1.namebrightdns.com2016-01-23 → 2026-04-26 · 6 obs
○ 2015-11-03 20:14:18
● 2016-01-23 16:35:00
● 2017-02-15 23:29:44
○ 2020-01-06 14:24:02
● 2026-04-26 13:08:34
● 2026-04-26 13:08:36
○NSns1.sedoparking.com2015-06-15 → 2015-06-15 · 3 obs
● 2015-06-15 05:57:02
○ 2015-11-03 20:14:18
○ 2026-04-26 13:08:36
○NSns2.namebrightdns.com2016-01-23 → 2017-02-15 · 5 obs
○ 2015-11-03 20:14:18
● 2016-01-23 16:35:00
● 2017-02-15 23:29:44
○ 2020-01-06 14:24:02
○ 2026-04-26 13:08:36
○NSns2.sedoparking.com2015-06-15 → 2015-06-15 · 3 obs
● 2015-06-15 05:57:02
○ 2015-11-03 20:14:18
○ 2026-04-26 13:08:36
●NSnsg1.namebrightdns.com2015-11-03 → 2026-04-26 · 6 obs
○ 2015-06-15 05:57:02
● 2015-11-03 20:14:18
○ 2016-01-23 16:35:00
○ 2017-02-15 23:29:44
● 2020-01-06 14:24:02
● 2026-04-26 13:08:36
●NSnsg2.namebrightdns.com2015-11-03 → 2026-04-26 · 6 obs
○ 2015-06-15 05:57:02
● 2015-11-03 20:14:18
○ 2016-01-23 16:35:00
○ 2017-02-15 23:29:44
● 2020-01-06 14:24:02
● 2026-04-26 13:08:36
○MXmail.nickstel.com2015-06-15 → 2015-06-15 · 3 obs
● 2015-06-15 05:57:02
○ 2015-11-03 20:14:18
○ 2026-04-26 13:08:36
●A13.223.25.842026-04-26 → 2026-04-26 · 3 obs
○ 2020-01-06 14:24:02
● 2026-04-26 13:08:34
● 2026-04-26 13:08:36
●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-04-26 → 2026-04-26 · 3 obs
○ 2020-01-06 14:24:02
● 2026-04-26 13:08:34
● 2026-04-26 13:08:36
●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-04-26 → 2026-04-26 · 3 obs
○ 2020-01-06 14:24:02
● 2026-04-26 13:08:34
● 2026-04-26 13:08:36
○A34.199.151.1632017-02-15 → 2017-02-15 · 4 obs
○ 2016-04-24 13:20:28
● 2017-02-15 23:29:44
○ 2020-01-06 14:24:02
○ 2026-04-26 13:08:36
○A52.20.154.32017-02-15 → 2017-02-15 · 4 obs
○ 2016-04-24 13:20:28
● 2017-02-15 23:29:44
○ 2020-01-06 14:24:02
○ 2026-04-26 13:08:36
○A52.200.243.1232016-04-24 → 2016-04-24 · 4 obs
○ 2016-01-23 16:35:00
● 2016-04-24 13:20:28
○ 2017-02-15 23:29:44
○ 2026-04-26 13:08:36
○A54.152.144.2432016-04-24 → 2016-04-24 · 4 obs
○ 2016-01-23 16:35:00
● 2016-04-24 13:20:28
○ 2017-02-15 23:29:44
○ 2026-04-26 13:08:36
○A54.174.31.2542015-11-03 → 2015-11-03 · 4 obs
○ 2015-06-15 05:57:02
● 2015-11-03 20:14:18
○ 2016-01-23 16:35:00
○ 2026-04-26 13:08:36
○A54.208.74.2152015-11-03 → 2015-11-03 · 4 obs
○ 2015-06-15 05:57:02
● 2015-11-03 20:14:18
○ 2016-01-23 16:35:00
○ 2026-04-26 13:08:36
○A54.209.90.812016-01-23 → 2016-01-23 · 4 obs
○ 2015-11-03 20:14:18
● 2016-01-23 16:35:00
○ 2016-04-24 13:20:28
○ 2026-04-26 13:08:36
●A54.243.117.1972026-04-26 → 2026-04-26 · 3 obs
○ 2020-01-06 14:24:02
● 2026-04-26 13:08:34
● 2026-04-26 13:08:36
○A54.85.54.292016-01-23 → 2016-01-23 · 4 obs
○ 2015-11-03 20:14:18
● 2016-01-23 16:35:00
○ 2016-04-24 13:20:28
○ 2026-04-26 13:08:36
○A72.52.4.1192015-06-15 → 2015-06-15 · 3 obs
● 2015-06-15 05:57:02
○ 2015-11-03 20:14:18
○ 2026-04-26 13:08:36
○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2015-11-03 → 2016-04-24 · 4 obs
● 2015-11-03 20:14:18
● 2016-04-24 13:20:28
○ 2017-02-15 23:29:44
○ 2026-04-26 13:08:36
○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2017-02-15 → 2017-02-15 · 4 obs
○ 2016-04-24 13:20:28
● 2017-02-15 23:29:44
○ 2020-01-06 14:24:02
○ 2026-04-26 13:08:36
○CNAMEhdredirect-lb5-1afb6e2973825a56.elb.us-east-1.amazonaws.com2020-01-06 → 2020-01-06 · 4 obs
○ 2017-02-15 23:29:44
● 2020-01-06 14:24:02
○ 2026-04-26 13:08:34
○ 2026-04-26 13:08:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
cursosbr.comnsg1.namebrightdns.com, nsg2.namebrightdns.com24 records

✅ Authoritative Response

Server:34.234.97.191

NS records: nsg1.namebrightdns.com, nsg2.namebrightdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cursosbr.com (unsigned zone)

⏱️ Timing

Total: 117ms | Queries: -

📄 Records

TypeCountSample Data
A213.223.25.84, 54.243.117.197
AAAA22600:1f18:4ae:c606:78d4:4260:db4e:aeee, 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb
NS2nsg1.namebrightdns.com, nsg2.namebrightdns.com
TXT2afternic-verification-G9G3tM8T8EwEizzPzj, v=spf1 -all
SOA1ns1.namebrightdns.com dns.namebright.com

📌 Glue Records Collected

Total: 24

Out-of-bailiwick: 24 (nsg1.namebrightdns.com, nsg1.namebrightdns.com, nsg1.namebrightdns.com...)

Analysis

IP Addresses

cursosbr.com maps to four IP numbers: 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb, 2600:1f18:4ae:c606:78d4:4260:db4e:aeee, 13.223.25.84 and 54.243.117.197.

other host names include dooradvertising.com, watchtowermedia.com, heartattitudes.com, do(0x68656e746169).com and gamexxl.com; they share IP numbers with cursosbr.com.

Name Servers

cursosbr.com is delegated to three name servers ns1.namebrightdns.com, nsg1.namebrightdns.com and nsg2.namebrightdns.com.

cursosbr.com at least partially shares name servers with other domains, for instance stonemint.com, mail.diabetesprotocol.com, melomatic.com, www.glazeme.com and mail.iadeel.com.

These name servers are commonly used alongside ns2.namebrightdns.com, domain-for-sale.hugedomainsdns.com and forsale.hugedomainsdns.com.

Host names with thirteen IP numbers: nsg1.namebrightdns.com points to 2600:1f18:683a:ae1a:180a:eaa0:98f4:64d8, 2600:1f18:683a:ae1a:3225:8a68:a4e5:e20b, 2600:1f18:683a:ae1b:bf1a:3581:5545:a15d, 3.84.96.195, 34.229.61.165, 34.234.97.191, 52.91.197.160, 54.81.79.209, 54.91.57.12, 54.175.237.59, 54.196.100.248, 54.198.0.235 and 54.209.182.252.

Host names with twelve IP numbers: nsg2.namebrightdns.com points to 2600:1f18:683a:ae1a:2607:ed1c:3b72:e7f4, 2600:1f18:683a:ae1a:5264:a5f4:2244:ab6c, 2600:1f18:683a:ae1a:b112:e521:202f:80f6, 2600:1f18:683a:ae1b:2cdc:4a86:59f5:b3f4, 2600:1f18:683a:ae1b:7bd7:3433:72e2:b3a0, 2600:1f18:683a:ae1b:b79a:8bac:5855:a603, 3.93.61.76, 18.209.106.44, 23.20.211.132, 35.173.181.189, 54.210.78.10 and 54.227.104.240.

Host names with five IP numbers: ns1.namebrightdns.com points to 2600:1f18:683a:ae1a:34d8:9aa4:f653:1ca0, 2600:1f18:683a:ae1a:77e3:70dc:d7e:bcec, 3.81.4.12, 54.91.4.171 and 204.236.252.8.