ontopschool.com - robtex.com

ontopschool.com

DNSSEC⚠️ Not signed
A2001:19f0:5:39fb:5400:4ff:fe7c:e4cc🇺🇸 AS-VULTR2001:19f0::/38 Vultr Assigned Prefix
A2001:19f0:9002:1b90:5400:4ff:fe7c:e525🇺🇸 AS-VULTR2001:19f0:9000::/38 Vultr Assigned Prefix
A2604:a880:400:d0::1a3d:e001🇺🇸 DIGITALOCEAN2604:a880:400::/48 DigitalOcean
A45.55.107.236🇺🇸 DIGITALOCEAN45.55.104.0/22 DigitalOcean
A104.156.247.183🇺🇸 AS-VULTR104.156.240.0/21 Vultr Assigned Prefix
A108.61.89.136🇺🇸 AS-VULTR108.61.64.0/19 Vultr Assigned Prefix
NSnsb1.hostnet.com.br ⭐
A2604:a880:1:20::23:a001🇺🇸 DIGITALOCEAN2604:a880:1::/48 DigitalOcean
A138.68.200.41🇺🇸 DIGITALOCEAN138.68.200.0/22 DigitalOcean
NSnsb2.hostnet.com.br
A2600:1f1e:f14:a800:5336:89de:e6f7:d668🇧🇷 Amazon2600:1f1e:c00::/38 AMAZON AWS
A177.71.249.106🇧🇷 Amazon177.71.224.0/19 EC2 GRU prefix
PTRec2-177-71-249-106.sa-east-1.compute.amazonaws.com
NSnsb3.hostnet.com.br
A2a03:b0c0:1:d0::fcd:3001🇬🇧 DIGITALOCEAN2a03:b0c0:1::/48 DigitalOcean
A68.183.254.209🇬🇧 DIGITALOCEAN68.183.252.0/22 DigitalOcean
NSnsb4.hostnet.com.br
A2a05:d018:eef:900:396:630c:24b8:b3d1🇮🇪 Amazon2a05:d018:c00::/38 AMAZON AWS
A79.125.120.36🇮🇪 Amazon79.125.0.0/17 EU AWS Dublin
PTRec2-79-125-120-36.eu-west-1.compute.amazonaws.com
NSnsb5.hostnet.com.br
A2a03:b0c0:1:d0::fe4:4001🇬🇧 DIGITALOCEAN2a03:b0c0:1::/48 DigitalOcean
A143.198.242.209🇬🇧 DIGITALOCEAN143.198.240.0/22 DigitalOcean
NSnsb6.hostnet.com.br
A2600:1f18:73e:d500:11bb:37da:a52f:bc15🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix
A184.73.232.169🇺🇸 Amazon184.73.0.0/16 IAD prefix
PTRec2-184-73-232-169.compute-1.amazonaws.com
MXsmtpsin1.f1.k8.com.br ⭐
A187.73.32.142🇧🇷 Digirati187.73.32.0/24 This route object is for a UPX Technologies customer route, which is being exported under this origin AS. This route object was created because no existing route object with the same origin was found, and since some UPX peers filter based on these objects this route may be rejected if this object is not created. Please contact noc@upx.com.br if you have any questions regarding this object.
PTRsmtpsin1.f1.k8.com.br
TXTv=spf1 a:mxs.f1.k8.com.br -all
SOAnsb1.hostnet.com.brdnsmasters@k8.com.br serial=83

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=1776176232

Same first word

ontopschool.com

DNS History

34 records (13 active, 21 former)

20162017201820192020202120222023202420252026NSnsb1.hostnet.com.brnsb2.hostnet.com.brnsb3.hostnet.com.brnsb4.hostnet.com.brnsb5.hostnet.com.brnsb6.hostnet.com.brdns1.name-services.comdns2.name-services.comdns3.name-services.comdns4.name-services.comdns5.name-services.comnsa1.k8.com.brnsa2.k8.com.brnsa3.k8.com.brnsa4.k8.com.brnsa5.k8.com.brnsa6.k8.com.brMXsmtpsin1.f1.k8.com.brsmtprin1.f1.k8.com.brA104.156.247.183108.61.89.1362001:19f0:5:39fb:5400:4ff:fe7c:e4cc2001:19f0:9002:1b90:5400:4ff:fe7c:e5252604:a880:400:d0::1a3d:e00145.55.107.236177.71.183.219177.71.188.70192.241.146.220209.200.154.3845.55.195.12446.137.248.17454.228.191.20454.241.242.14254.83.41.200
○NSdns1.name-services.com2018-09-21 → 2018-09-21 · 4 obs
○ 2017-02-16 14:20:38
● 2018-09-21 19:37:42
○ 2026-04-08 13:13:08
○ 2026-04-14 14:33:48
○NSdns2.name-services.com2018-09-21 → 2018-09-21 · 4 obs
○ 2017-02-16 14:20:38
● 2018-09-21 19:37:42
○ 2026-04-08 13:13:08
○ 2026-04-14 14:33:48
○NSdns3.name-services.com2018-09-21 → 2018-09-21 · 4 obs
○ 2017-02-16 14:20:38
● 2018-09-21 19:37:42
○ 2026-04-08 13:13:08
○ 2026-04-14 14:33:48
○NSdns4.name-services.com2018-09-21 → 2018-09-21 · 4 obs
○ 2017-02-16 14:20:38
● 2018-09-21 19:37:42
○ 2026-04-08 13:13:08
○ 2026-04-14 14:33:48
○NSdns5.name-services.com2018-09-21 → 2018-09-21 · 4 obs
○ 2017-02-16 14:20:38
● 2018-09-21 19:37:42
○ 2026-04-08 13:13:08
○ 2026-04-14 14:33:48
○NSnsa1.k8.com.br2015-08-04 → 2017-02-16 · 4 obs
● 2015-08-04 04:33:36
● 2017-02-16 14:20:38
○ 2018-09-21 19:37:42
○ 2026-04-14 14:33:48
○NSnsa2.k8.com.br2015-08-04 → 2017-02-16 · 4 obs
● 2015-08-04 04:33:36
● 2017-02-16 14:20:38
○ 2018-09-21 19:37:42
○ 2026-04-14 14:33:48
○NSnsa3.k8.com.br2015-08-04 → 2017-02-16 · 4 obs
● 2015-08-04 04:33:36
● 2017-02-16 14:20:38
○ 2018-09-21 19:37:42
○ 2026-04-14 14:33:48
○NSnsa4.k8.com.br2015-08-04 → 2017-02-16 · 4 obs
● 2015-08-04 04:33:36
● 2017-02-16 14:20:38
○ 2018-09-21 19:37:42
○ 2026-04-14 14:33:48
○NSnsa5.k8.com.br2015-08-04 → 2017-02-16 · 4 obs
● 2015-08-04 04:33:36
● 2017-02-16 14:20:38
○ 2018-09-21 19:37:42
○ 2026-04-14 14:33:48
○NSnsa6.k8.com.br2015-08-04 → 2017-02-16 · 4 obs
● 2015-08-04 04:33:36
● 2017-02-16 14:20:38
○ 2018-09-21 19:37:42
○ 2026-04-14 14:33:48
●NSnsb1.hostnet.com.br2026-04-08 → 2026-04-14 · 3 obs
○ 2018-09-21 19:37:42
● 2026-04-08 13:13:08
● 2026-04-14 14:33:48
●NSnsb2.hostnet.com.br2026-04-08 → 2026-04-14 · 3 obs
○ 2018-09-21 19:37:42
● 2026-04-08 13:13:08
● 2026-04-14 14:33:48
●NSnsb3.hostnet.com.br2026-04-08 → 2026-04-14 · 3 obs
○ 2018-09-21 19:37:42
● 2026-04-08 13:13:08
● 2026-04-14 14:33:48
●NSnsb4.hostnet.com.br2026-04-08 → 2026-04-14 · 3 obs
○ 2018-09-21 19:37:42
● 2026-04-08 13:13:08
● 2026-04-14 14:33:48
●NSnsb5.hostnet.com.br2026-04-08 → 2026-04-14 · 3 obs
○ 2018-09-21 19:37:42
● 2026-04-08 13:13:08
● 2026-04-14 14:33:48
●NSnsb6.hostnet.com.br2026-04-08 → 2026-04-14 · 3 obs
○ 2018-09-21 19:37:42
● 2026-04-08 13:13:08
● 2026-04-14 14:33:48
○MXsmtprin1.f1.k8.com.br2015-08-04 → 2017-02-16 · 4 obs
● 2015-08-04 04:33:36
● 2017-02-16 14:20:38
○ 2018-09-21 19:37:42
○ 2026-04-14 14:33:48
●MXsmtpsin1.f1.k8.com.br2026-04-08 → 2026-04-14 · 3 obs
○ 2018-09-21 19:37:42
● 2026-04-08 13:13:08
● 2026-04-14 14:33:48
●A104.156.247.1832026-04-08 → 2026-04-14 · 3 obs
○ 2018-09-21 19:37:42
● 2026-04-08 13:13:08
● 2026-04-14 14:33:48
●A108.61.89.1362026-04-08 → 2026-04-14 · 3 obs
○ 2018-09-21 19:37:42
● 2026-04-08 13:13:08
● 2026-04-14 14:33:48
○A177.71.183.2192015-08-04 → 2017-02-16 · 4 obs
● 2015-08-04 04:33:36
● 2017-02-16 14:20:38
○ 2018-09-21 19:37:42
○ 2026-04-14 14:33:48
○A177.71.188.702015-08-04 → 2017-02-16 · 4 obs
● 2015-08-04 04:33:36
● 2017-02-16 14:20:38
○ 2018-09-21 19:37:42
○ 2026-04-14 14:33:48
○A192.241.146.2202015-11-25 → 2017-02-16 · 5 obs
○ 2015-08-04 04:33:36
● 2015-11-25 12:43:50
● 2017-02-16 14:20:38
○ 2018-09-21 19:37:42
○ 2026-04-14 14:33:48
●A2001:19f0:5:39fb:5400:4ff:fe7c:e4cc2026-04-08 → 2026-04-14 · 3 obs
○ 2018-09-21 19:37:42
● 2026-04-08 13:13:08
● 2026-04-14 14:33:48
●A2001:19f0:9002:1b90:5400:4ff:fe7c:e5252026-04-08 → 2026-04-14 · 3 obs
○ 2018-09-21 19:37:42
● 2026-04-08 13:13:08
● 2026-04-14 14:33:48
○A209.200.154.382018-09-21 → 2018-09-21 · 4 obs
○ 2017-02-16 14:20:38
● 2018-09-21 19:37:42
○ 2026-04-08 13:13:08
○ 2026-04-14 14:33:48
●A2604:a880:400:d0::1a3d:e0012026-04-08 → 2026-04-14 · 3 obs
○ 2018-09-21 19:37:42
● 2026-04-08 13:13:08
● 2026-04-14 14:33:48
●A45.55.107.2362026-04-08 → 2026-04-14 · 3 obs
○ 2018-09-21 19:37:42
● 2026-04-08 13:13:08
● 2026-04-14 14:33:48
○A45.55.195.1242015-11-25 → 2017-02-16 · 5 obs
○ 2015-08-04 04:33:36
● 2015-11-25 12:43:50
● 2017-02-16 14:20:38
○ 2018-09-21 19:37:42
○ 2026-04-14 14:33:48
○A46.137.248.1742015-08-04 → 2015-08-04 · 3 obs
● 2015-08-04 04:33:36
○ 2015-11-25 12:43:50
○ 2026-04-14 14:33:48
○A54.228.191.2042015-08-04 → 2017-02-16 · 4 obs
● 2015-08-04 04:33:36
● 2017-02-16 14:20:38
○ 2018-09-21 19:37:42
○ 2026-04-14 14:33:48
○A54.241.242.1422015-08-04 → 2015-08-04 · 3 obs
● 2015-08-04 04:33:36
○ 2015-11-25 12:43:50
○ 2026-04-14 14:33:48
○A54.83.41.2002015-08-04 → 2017-02-16 · 4 obs
● 2015-08-04 04:33:36
● 2017-02-16 14:20:38
○ 2018-09-21 19:37:42
○ 2026-04-14 14:33:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comi.gtld-servers.net, b.gtld-servers.net, m.gtld-servers.net, d.gtld-servers.net...-
ontopschool.comnsb1.hostnet.com.br, nsb2.hostnet.com.br, nsb3.hostnet.com.br, nsb4.hostnet.com.br...-

✅ Authoritative Response

Server:138.68.200.41

NS records: nsb1.hostnet.com.br, nsb2.hostnet.com.br, nsb3.hostnet.com.br, nsb4.hostnet.com.br, nsb5.hostnet.com.br, nsb6.hostnet.com.br

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ontopschool.com (unsigned zone)

⏱️ Timing

Total: 864ms | Queries: -

📄 Records

TypeCountSample Data
A345.55.107.236, 104.156.247.183...
AAAA32001:19f0:5:39fb:5400:4ff:fe7c:e4cc, 2001:19f0:9002:1b90:5400:4ff:fe7c:e525...
NS6nsb1.hostnet.com.br, nsb2.hostnet.com.br...
MX1smtpsin1.f1.k8.com.br (pri: 10)
TXT1v=spf1 a:mxs.f1.k8.com.br -all
SOA1nsb1.hostnet.com.br dnsmasters.k8.com.br

Analysis

IP Addresses

ontopschool.com points to six IPs: 2001:19f0:5:39fb:5400:4ff:fe7c:e4cc, 2001:19f0:9002:1b90:5400:4ff:fe7c:e525, 2604:a880:400:d0::1a3d:e001, 45.55.107.236, 104.156.247.183 and 108.61.89.136.

Other host names including pivamagazine.com.br, ctb.org.br, aboudib.com.br, riosambadancer.com and colegioweb.com.br share IP numbers with ontopschool.com.

Name Servers

ontopschool.com is delegated to six name servers: nsb1.hostnet.com.br, nsb2.hostnet.com.br, nsb3.hostnet.com.br, nsb4.hostnet.com.br, nsb5.hostnet.com.br and nsb6.hostnet.com.br.

ontopschool.com at least partially shares name servers with other domains, including pareja.com.br, linhavermelha.com.br, amaisaude.com, capaznet.com and legalvjk.com.

these name servers are commonly used with nsb1.k8.com.br, nsb2.k8.com.br, nsb3.k8.com.br, nsb4.k8.com.br and nsb5.k8.com.br.

Host names with two IP numbers:

Host nsb1.hostnet.com.br points to 2604:a880:1:20::23:a001 and 138.68.200.41

Host nsb2.hostnet.com.br points to 2600:1f1e:f14:a800:5336:89de:e6f7:d668 and 177.71.249.106

Host nsb3.hostnet.com.br points to 2a03:b0c0:1:d0::fcd:3001 and 68.183.254.209

Host nsb4.hostnet.com.br points to 2a05:d018:eef:900:396:630c:24b8:b3d1 and 79.125.120.36

Host nsb5.hostnet.com.br points to 2a03:b0c0:1:d0::fe4:4001 and 143.198.242.209

Host nsb6.hostnet.com.br points to 2600:1f18:73e:d500:11bb:37da:a52f:bc15 and 184.73.232.169

Mail Servers

ontopschool.com is handled by a single mail server, smtpsin1.f1.k8.com.br.

ontopschool.com shares its mail server setup with other domains, including redeart.com.br, guiaflix.com, issa.com.br, mgusinagem.com and casacalciolari.com.br.

ontopschool.com shares some mail servers with other domains, at least partially, for instance megacientifica.com.br.

smtpsin1.f1.k8.com.br points to a single IP: 187.73.32.142.