exercise-math.com - dns.ninja
exercise-math.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 89.142.149.221🇸🇮 SIOL-NET89.142.128.0/18 SiOL.SI, Provider Aggregated Block SiOL d.o.o. Internet Service Provider in Slovenia http://www.siol.net | ||||||
| PTR | bsn-142-149-221.dynamic.siol.net | ||||||
| NS | ns1.afraid.org ⭐ | ||||||
| A | 23.227.184.22🇺🇸 HIVELOCITY-123.227.184.0/24 DAL1 IPv4 Allocation | ||||||
| PTR | escapefromreailty.com | ||||||
| NS | ns2.afraid.org | ||||||
| A | 2001:1850:1:5:800::6b🇺🇸 ASN-CQ-GIGENET2001:1850::/32 GIGENET IPV6 ROUTE | ||||||
| PTR | ns2.afraid.org | ||||||
| A | 69.65.50.223🇺🇸 ASN-CQ-GIGENET69.65.0.0/18 GigENET Netblock | ||||||
| PTR | ns2.afraid.org | ||||||
| NS | ns3.afraid.org | ||||||
| A | 67.220.81.190🇺🇸 OBJX67.220.81.0/24 objx.net, LLC | ||||||
| NS | ns4.afraid.org | ||||||
| A | 2610:150:bddb:d271::2🇺🇸 SHARKTECH-12610:150:8000::/34 Sharktech Inc. | ||||||
| PTR | ns4.afraid.org | ||||||
| A | 70.39.97.253🇺🇸 SHARKTECH-170.39.97.0/24 PNAP-CHG FDCS Route | ||||||
| PTR | ns4.afraid.org | ||||||
| MX | mail.exercise-math.com ⭐ | ||||||
| A | 84.255.192.162🇸🇮 T-2-AS84.255.192.0/18 T-2 d.o.o. Provider Aggregated Block | ||||||
| PTR | 84-255-192-162.static.t-2.net | ||||||
| SOA | ns1.afraid.orgdnsadmin@afraid.org serial=2606090001 | ||||||
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=1785336467 | ||||||
Subdomains
mail.exercise-math.com |
Same first word
exercise-math.com |
DNS History
13 records (6 active, 7 former)
●NSns1.afraid.org2015-08-18 → 2026-07-29 · 2 obs
● 2026-07-29 14:54:04
●NSns2.afraid.org2015-08-18 → 2026-07-29 · 2 obs
● 2026-07-29 14:54:04
●NSns3.afraid.org2015-08-18 → 2026-07-29 · 2 obs
● 2026-07-29 14:54:04
●NSns4.afraid.org2015-08-18 → 2026-07-29 · 2 obs
● 2026-07-29 14:54:04
●MXmail.exercise-math.com2015-08-18 → 2026-07-29 · 2 obs
● 2026-07-29 14:54:04
○A109.182.74.1492015-12-23 → 2015-12-23 · 4 obs
● 2015-12-23 14:22:38
○ 2016-04-01 14:02:14
○ 2026-07-29 14:54:04
○A194.165.126.162016-04-01 → 2016-04-01 · 4 obs
● 2016-04-01 14:02:14
○ 2016-09-16 23:36:20
○ 2026-07-29 14:54:04
○A89.142.128.332015-08-18 → 2015-08-18 · 3 obs
○ 2015-12-23 14:22:38
○ 2026-07-29 14:54:04
○A89.142.149.1772026-02-15 → 2026-02-15 · 4 obs
● 2026-02-15 18:27:08
○ 2026-04-10 18:40:06
○ 2026-07-29 14:54:04
●A89.142.149.2212026-07-28 → 2026-07-29 · 3 obs
● 2026-07-28 06:37:00
● 2026-07-29 14:54:04
○A89.142.151.72026-04-10 → 2026-04-10 · 4 obs
● 2026-04-10 18:40:06
○ 2026-07-28 06:37:00
○ 2026-07-29 14:54:04
○A89.143.100.682017-05-31 → 2017-05-31 · 4 obs
● 2017-05-31 14:24:36
○ 2026-02-15 18:27:08
○ 2026-07-29 14:54:04
○A89.143.102.1822016-09-16 → 2016-09-16 · 4 obs
● 2016-09-16 23:36:20
○ 2017-05-31 14:24:36
○ 2026-07-29 14:54:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, b.gtld-servers.net, a.gtld-servers.net, l.gtld-servers.net... | - |
| exercise-math.com | ns1.afraid.org, ns2.afraid.org, ns3.afraid.org, ns4.afraid.org | - |
✅ Authoritative Response
Server:70.39.97.253
NS records: ns1.afraid.org, ns2.afraid.org, ns3.afraid.org, ns4.afraid.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for exercise-math.com (unsigned zone)
⏱️ Timing
Total: 5086ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 89.142.149.221 |
| NS | 4 | ns4.afraid.org, ns1.afraid.org... |
| MX | 1 | mail.exercise-math.com (pri: 10) |
| SOA | 1 | ns1.afraid.org dnsadmin.afraid.org |
Analysis
Hierarchy
mail.exercise-math.com is a subdomain of exercise-math.com.
IP Addresses
exercise-math.com has exactly one IP address — 89.142.149.221.
Name Servers
Four name servers handle the delegation for exercise-math.com: ns1.afraid.org, ns2.afraid.org, ns3.afraid.org and ns4.afraid.org.
The name servers of exercise-math.com overlap at least partially with those of other domains — among them vanessas-photography.com, dirba.net, byce.org and two more.
Host names pointing to two IP addresses:
ns2.afraid.org directs traffic to 69.65.50.223 and 2001:1850:1:5:800::6b.
ns4.afraid.org directs traffic to 70.39.97.253 and 2610:150:bddb:d271::2.
Host names resolving to a single IP address:
ns1.afraid.org has the IP address 23.227.184.22.
ns3.afraid.org has the IP address 67.220.81.190.
Mail Servers
exercise-math.com uses one mail server — mail.exercise-math.com.
mail.exercise-math.com directs to just one IP number, 84.255.192.162.