problembook.net - robtex.com
problembook.net
| DNSSEC | ⚠️ Not signed | ||||||
net
| 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=1771291465 | ||||||
Same first word
problembook.net |
DNS History
25 records (0 active, 25 former)
○NSns1.reg.ru2015-06-26 → 2017-01-10 · 3 obs
● 2015-06-26 07:41:52
● 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
● 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
○A107.22.226.682015-06-26 → 2015-06-26 · 2 obs
● 2015-06-26 07:41:52
○ 2026-03-23 16:03:50
○ 2026-03-23 16:03:50
○A107.22.237.192015-11-14 → 2015-11-14 · 4 obs
○ 2015-06-26 07:41:52
● 2015-11-14 11:50:50
○ 2016-02-05 12:19:50
○ 2026-03-23 16:03:50
● 2015-11-14 11:50:50
○ 2016-02-05 12:19:50
○ 2026-03-23 16:03:50
○A23.23.165.2282016-02-05 → 2016-02-05 · 4 obs
○ 2015-11-14 11:50:50
● 2016-02-05 12:19:50
○ 2016-04-26 18:19:30
○ 2026-03-23 16:03:50
● 2016-02-05 12:19:50
○ 2016-04-26 18:19:30
○ 2026-03-23 16:03:50
○A50.16.193.1822016-02-05 → 2016-02-05 · 4 obs
○ 2015-11-14 11:50:50
● 2016-02-05 12:19:50
○ 2016-04-26 18:19:30
○ 2026-03-23 16:03:50
● 2016-02-05 12:19:50
○ 2016-04-26 18:19:30
○ 2026-03-23 16:03:50
○A50.16.234.2442016-02-05 → 2016-02-05 · 4 obs
○ 2015-11-14 11:50:50
● 2016-02-05 12:19:50
○ 2016-04-26 18:19:30
○ 2026-03-23 16:03:50
● 2016-02-05 12:19:50
○ 2016-04-26 18:19:30
○ 2026-03-23 16:03:50
○A54.197.223.432015-06-26 → 2015-06-26 · 2 obs
● 2015-06-26 07:41:52
○ 2026-03-23 16:03:50
○ 2026-03-23 16:03:50
○A54.225.138.1572016-04-26 → 2016-04-26 · 4 obs
○ 2016-02-05 12:19:50
● 2016-04-26 18:19:30
○ 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
● 2016-04-26 18:19:30
○ 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
○A54.225.202.2262015-11-14 → 2015-11-14 · 4 obs
○ 2015-06-26 07:41:52
● 2015-11-14 11:50:50
○ 2016-02-05 12:19:50
○ 2026-03-23 16:03:50
● 2015-11-14 11:50:50
○ 2016-02-05 12:19:50
○ 2026-03-23 16:03:50
○A54.225.214.1022017-01-10 → 2017-01-10 · 3 obs
○ 2016-04-26 18:19:30
● 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
● 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
○A54.225.244.1222017-01-10 → 2017-01-10 · 3 obs
○ 2016-04-26 18:19:30
● 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
● 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
○A54.235.107.2152016-04-26 → 2016-04-26 · 4 obs
○ 2016-02-05 12:19:50
● 2016-04-26 18:19:30
○ 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
● 2016-04-26 18:19:30
○ 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
○A54.243.113.312017-01-10 → 2017-01-10 · 3 obs
○ 2016-04-26 18:19:30
● 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
● 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
○A54.243.201.182016-04-26 → 2016-04-26 · 4 obs
○ 2016-02-05 12:19:50
● 2016-04-26 18:19:30
○ 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
● 2016-04-26 18:19:30
○ 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
○A54.243.203.152015-06-26 → 2015-06-26 · 2 obs
● 2015-06-26 07:41:52
○ 2026-03-23 16:03:50
○ 2026-03-23 16:03:50
○A54.243.253.2212015-11-14 → 2015-11-14 · 4 obs
○ 2015-06-26 07:41:52
● 2015-11-14 11:50:50
○ 2016-02-05 12:19:50
○ 2026-03-23 16:03:50
● 2015-11-14 11:50:50
○ 2016-02-05 12:19:50
○ 2026-03-23 16:03:50
○A91.195.240.942026-03-23 → 2026-03-23 · 1 obs
○ 2026-03-23 16:03:50
○CNAMEelb049689-1604000308.us-east-1.elb.amazonaws.com2015-11-14 → 2017-01-10 · 4 obs
○ 2015-06-26 07:41:52
● 2015-11-14 11:50:50
● 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
● 2015-11-14 11:50:50
● 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
○CNAMEsaga-4658.herokussl.com2015-11-14 → 2017-01-10 · 4 obs
○ 2015-06-26 07:41:52
● 2015-11-14 11:50:50
● 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
● 2015-11-14 11:50:50
● 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
○CNAMEwww.gitbook.io2015-11-14 → 2017-01-10 · 4 obs
○ 2015-06-26 07:41:52
● 2015-11-14 11:50:50
● 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
● 2015-11-14 11:50:50
● 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
○CNAMEwww.problembook.net2015-06-26 → 2017-01-10 · 3 obs
● 2015-06-26 07:41:52
● 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
● 2017-01-10 04:19:12
○ 2026-03-23 16:03:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | h.gtld-servers.net, k.gtld-servers.net, i.gtld-servers.net, m.gtld-servers.net... | - |
✅ Authoritative Response
Server:192.31.80.30
NS records: h.gtld-servers.net, k.gtld-servers.net, i.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net, g.gtld-servers.net, j.gtld-servers.net, b.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, c.gtld-servers.net, l.gtld-servers.net
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 253ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|