exercise101.com - robtex.com
exercise101.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| PTR | a904c694c05102f30.awsglobalaccelerator.com | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| NS | ns3.afternic.com ⭐ | ||||||
| A | 97.74.98.65🇺🇸 GODADDY-DNS97.74.98.0/23 | ||||||
| PTR | ns3.afternic.com | ||||||
| NS | ns4.afternic.com | ||||||
| A | 173.201.66.65🇺🇸 GODADDY-DNS173.201.66.0/23 | ||||||
| PTR | ns4.namefind.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns3.afternic.comdns@jomax.net 2025-10-01 #0 | ||||||
com
| 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=1774720842 | ||||||
Subdomains
mail.exercise101.com |
Same first word
exercise101.com |
exercise101.com.au |
Similar names
DNS History
11 records (4 active, 7 former)
○NSns1.peer1.net2015-07-31 → 2017-02-15 · 4 obs
● 2017-02-15 09:35:42
○ 2020-01-31 15:06:32
○ 2026-03-28 18:21:54
○NSns2.peer1.net2015-07-31 → 2017-02-15 · 4 obs
● 2017-02-15 09:35:42
○ 2020-01-31 15:06:32
○ 2026-03-28 18:21:54
●NSns3.afternic.com2026-03-28 → 2026-03-28 · 3 obs
● 2026-03-28 11:29:24
● 2026-03-28 18:21:54
○NSns3.epik.com2020-01-31 → 2020-01-31 · 4 obs
● 2020-01-31 15:06:32
○ 2026-03-28 11:29:24
○ 2026-03-28 18:21:54
●NSns4.afternic.com2026-03-28 → 2026-03-28 · 3 obs
● 2026-03-28 11:29:24
● 2026-03-28 18:21:54
○NSns4.epik.com2020-01-31 → 2020-01-31 · 4 obs
● 2020-01-31 15:06:32
○ 2026-03-28 11:29:24
○ 2026-03-28 18:21:54
○MXmail.exercise101.com2015-07-31 → 2017-02-15 · 4 obs
● 2017-02-15 09:35:42
○ 2020-01-31 15:06:32
○ 2026-03-28 18:21:54
●A13.248.169.482026-03-28 → 2026-03-28 · 3 obs
● 2026-03-28 11:29:24
● 2026-03-28 18:21:54
○A207.198.109.592015-07-31 → 2017-02-15 · 4 obs
● 2017-02-15 09:35:42
○ 2020-01-31 15:06:32
○ 2026-03-28 18:21:54
○A45.88.202.1152020-01-31 → 2020-01-31 · 4 obs
● 2020-01-31 15:06:32
○ 2026-03-28 11:29:24
○ 2026-03-28 18:21:54
●A76.223.54.1462026-03-28 → 2026-03-28 · 3 obs
● 2026-03-28 11:29:24
● 2026-03-28 18:21:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| exercise101.com | ns3.afternic.com, ns4.afternic.com | 2 records |
✅ Authoritative Response
Server:173.201.66.65
NS records: ns3.afternic.com, ns4.afternic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for exercise101.com (unsigned zone)
⏱️ Timing
Total: 81ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 13.248.169.48, 76.223.54.146 |
| NS | 2 | ns3.afternic.com, ns4.afternic.com |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns3.afternic.com dns.jomax.net |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns3.afternic.com, ns4.afternic.com)
Analysis
Hierarchy
mail.exercise101.com is a child of exercise101.com.
IP Addresses
exercise101.com has two IP numbers: 13.248.169.48 and 76.223.54.146.
Other host names, for instance nvhh.com, ns1.moput.com, okfund.com, tiedyeing.com and akloans.com share IP numbers with exercise101.com.
Name Servers
exercise101.com's delegation uses two name servers: ns3.afternic.com and ns4.afternic.com.
exercise101.com uses the same name server setup as other domains, such as fijoe.com, mail.kado.me, youarenotguilty.com, www.pcc1.com and arcwholesale.com.
exercise101.com at least partially shares name servers with other domains, including yxpb.com, lqinc.com, nanosers.com, nrix.com and relativemind.com.
These name servers are commonly used with verification-frsgyqgb387khmr9jzuunx.ns101.verify.hn, ns1.shunmi.com and ns2.shunmi.com.
Host names with a single IP address: ns3.afternic.com points to 97.74.98.65; ns4.afternic.com points to 173.201.66.65.