classbuilder.com.br - robtex.com
classbuilder.com.br
| DNSSEC | ⚠️ Not signed | ||||||
com.br
| DNSSEC | ⚠️ Not signed | ||||||
| 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 | ||||||
| SOA | a.dns.brhostmaster@registro.br serial=2026074138 | ||||||
rank #4047 in the tld
WOT: SAFE (69/100)
Same first word
Similar names
DNS History
11 records (0 active, 11 former)
○NSdns-amer-1.ptns.pearson.com2021-09-11 → 2021-09-11 · 4 obs
○ 2017-05-21 19:58:54
● 2021-09-11 01:39:12
○ 2026-03-13 11:33:00
○ 2026-03-22 20:21:34
● 2021-09-11 01:39:12
○ 2026-03-13 11:33:00
○ 2026-03-22 20:21:34
○NSdns-amer-2.ptns.pearson.com2021-09-11 → 2021-09-11 · 4 obs
○ 2017-05-21 19:58:54
● 2021-09-11 01:39:12
○ 2026-03-13 11:33:00
○ 2026-03-22 20:21:34
● 2021-09-11 01:39:12
○ 2026-03-13 11:33:00
○ 2026-03-22 20:21:34
○NSdns-apac-1.ptns.pearson.com2021-09-11 → 2021-09-11 · 4 obs
○ 2017-05-21 19:58:54
● 2021-09-11 01:39:12
○ 2026-03-13 11:33:00
○ 2026-03-22 20:21:34
● 2021-09-11 01:39:12
○ 2026-03-13 11:33:00
○ 2026-03-22 20:21:34
○NSdns-apac-2.ptns.pearson.com2021-09-11 → 2021-09-11 · 4 obs
○ 2017-05-21 19:58:54
● 2021-09-11 01:39:12
○ 2026-03-13 11:33:00
○ 2026-03-22 20:21:34
● 2021-09-11 01:39:12
○ 2026-03-13 11:33:00
○ 2026-03-22 20:21:34
○NSdns-emea-1.ptns.pearson.com2021-09-11 → 2021-09-11 · 4 obs
○ 2017-05-21 19:58:54
● 2021-09-11 01:39:12
○ 2026-03-13 11:33:00
○ 2026-03-22 20:21:34
● 2021-09-11 01:39:12
○ 2026-03-13 11:33:00
○ 2026-03-22 20:21:34
○NSdns-emea-2.ptns.pearson.com2021-09-11 → 2021-09-11 · 4 obs
○ 2017-05-21 19:58:54
● 2021-09-11 01:39:12
○ 2026-03-13 11:33:00
○ 2026-03-22 20:21:34
● 2021-09-11 01:39:12
○ 2026-03-13 11:33:00
○ 2026-03-22 20:21:34
○NSns01.pearson.com2015-07-20 → 2017-05-21 · 4 obs
● 2015-07-20 16:06:22
● 2017-05-21 19:58:54
○ 2021-09-11 01:39:12
○ 2026-03-22 20:21:34
● 2017-05-21 19:58:54
○ 2021-09-11 01:39:12
○ 2026-03-22 20:21:34
○NSns02.pearson.com2015-07-20 → 2017-05-21 · 4 obs
● 2015-07-20 16:06:22
● 2017-05-21 19:58:54
○ 2021-09-11 01:39:12
○ 2026-03-22 20:21:34
● 2017-05-21 19:58:54
○ 2021-09-11 01:39:12
○ 2026-03-22 20:21:34
○NSns03.pearson.com2015-07-20 → 2017-05-21 · 4 obs
● 2015-07-20 16:06:22
● 2017-05-21 19:58:54
○ 2021-09-11 01:39:12
○ 2026-03-22 20:21:34
● 2017-05-21 19:58:54
○ 2021-09-11 01:39:12
○ 2026-03-22 20:21:34
○NSns04.pearson.com2015-07-20 → 2017-05-21 · 4 obs
● 2015-07-20 16:06:22
● 2017-05-21 19:58:54
○ 2021-09-11 01:39:12
○ 2026-03-22 20:21:34
● 2017-05-21 19:58:54
○ 2021-09-11 01:39:12
○ 2026-03-22 20:21:34
○A159.182.80.462015-07-20 → 2021-09-11 · 4 obs
● 2015-07-20 16:06:22
● 2021-09-11 01:39:12
○ 2026-03-13 11:33:00
○ 2026-03-22 20:21:34
● 2021-09-11 01:39:12
○ 2026-03-13 11:33:00
○ 2026-03-22 20:21:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| br | a.dns.br, b.dns.br, c.dns.br, d.dns.br... | - |
✅ Authoritative Response
Server: 200.219.154.10
NS records: a.dns.br, b.dns.br, c.dns.br, d.dns.br, e.dns.br, f.dns.br
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 327ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|