lessons.at - robtex.com
lessons.at
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.243.5🇺🇸 Amazon13.248.240.0/20 | ||||||
| PTR | a16e665f42988324c.awsglobalaccelerator.com | ||||||
| A | 76.223.105.230🇺🇸 Amazon76.223.96.0/20 | ||||||
| NS | ns33.domaincontrol.com ⭐ | ||||||
| A | 2603:5:21a1::11🇺🇸 GODADDY-DNS2603:5:21a0::/44 | ||||||
| PTR | ns33.domaincontrol.com | ||||||
| A | 97.74.106.17🇺🇸 GODADDY-DNS97.74.106.0/23 | ||||||
| PTR | ns33.domaincontrol.com | ||||||
| NS | ns34.domaincontrol.com | ||||||
| A | 2603:5:22a1::11🇺🇸 GODADDY-DNS2603:5:22a0::/44 | ||||||
| PTR | ns34.domaincontrol.com | ||||||
| A | 173.201.74.17🇺🇸 GODADDY-DNS173.201.74.0/23 | ||||||
| PTR | ns34.domaincontrol.com | ||||||
| SOA | ns33.domaincontrol.comdns@jomax.net 2026-07-15 #1 | ||||||
at
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns.nic.at ⭐ | ||||||
| NS | d.ns.at | ||||||
| NS | j.ns.at | ||||||
| NS | n.ns.at | ||||||
| NS | ns1.univie.ac.at | ||||||
| NS | ns2.univie.ac.at | ||||||
| NS | r.ns.at | ||||||
| NS | u.ns.at | ||||||
| SOA | dns.nic.atdomain-admin@univie.ac.at serial=1785135602 | ||||||
Subdomains
www.lessons.at |
Same first word
Similar names
DNS History
9 records (4 active, 5 former)
○NSns1.sedoparking.com2015-08-06 → 2017-01-08 · 4 obs
● 2017-01-08 20:54:20
○ 2026-06-13 10:14:24
○ 2026-07-27 08:14:48
○NSns2.sedoparking.com2015-08-06 → 2017-01-08 · 4 obs
● 2017-01-08 20:54:20
○ 2026-06-13 10:14:24
○ 2026-07-27 08:14:48
●NSns33.domaincontrol.com2026-07-16 → 2026-07-27 · 3 obs
● 2026-07-16 19:20:12
● 2026-07-27 08:14:48
●NSns34.domaincontrol.com2026-07-16 → 2026-07-27 · 3 obs
● 2026-07-16 19:20:12
● 2026-07-27 08:14:48
○MXlocalhost2017-01-08 → 2017-01-08 · 4 obs
● 2017-01-08 20:54:20
○ 2026-06-13 10:14:24
○ 2026-07-27 08:14:48
○MXmail.nickstel.com2015-08-06 → 2016-05-03 · 4 obs
● 2016-05-03 09:24:34
○ 2017-01-08 20:54:20
○ 2026-07-27 08:14:48
●A13.248.243.52026-07-16 → 2026-07-27 · 3 obs
● 2026-07-16 19:20:12
● 2026-07-27 08:14:48
○A72.52.4.912015-08-06 → 2017-01-08 · 4 obs
● 2017-01-08 20:54:20
○ 2026-06-13 10:14:24
○ 2026-07-27 08:14:48
●A76.223.105.2302026-07-16 → 2026-07-27 · 3 obs
● 2026-07-16 19:20:12
● 2026-07-27 08:14:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| at | ns1.univie.ac.at, ns2.univie.ac.at, u.ns.at, n.ns.at... | - |
| lessons.at | ns33.domaincontrol.com, ns34.domaincontrol.com | - |
✅ Authoritative Response
Server:173.201.74.17
NS records: ns33.domaincontrol.com, ns34.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for lessons.at (unsigned zone)
⏱️ Timing
Total: 557ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 76.223.105.230, 13.248.243.5 |
| NS | 2 | ns33.domaincontrol.com, ns34.domaincontrol.com |
| SOA | 1 | ns33.domaincontrol.com dns.jomax.net |
Analysis
Hierarchy
www.lessons.at is delegated beneath lessons.at.
IP Addresses
lessons.at has two IP addresses: 13.248.243.5 and 76.223.105.230
americansonics.com, christianengineer.org, climate-king.com plus two other host names have IP numbers in common with lessons.at.
Name Servers
lessons.at is served by two delegated name servers, ns33.domaincontrol.com and ns34.domaincontrol.com.
The name server configuration of lessons.at is shared with other domains, for instance auroradazzle.com, thelalalandstudio.com, brookwoodclearlake.com and two others.
The DNS delegation for lessons.at at least partly coincides with that of other domains, aiid.com.eg being one example.
Each of the two host names carries two IP addresses: ns33.domaincontrol.com points to 97.74.106.17 and 2603:5:21a1::11, and ns34.domaincontrol.com points to 173.201.74.17 and 2603:5:22a1::11.