mathmatters1.com - dns.ninja
mathmatters1.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 204.74.99.100🇺🇸 MAINT-ID-12008204.74.99.0/24 Neustar | ||||||
| PTR | crs.ultradns.net | ||||||
| NS | pdns85.ultradns.com ⭐ | ||||||
| A | 2001:502:f3ff::79🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar | ||||||
| PTR | pdns85.ultradns.com | ||||||
| A | 156.154.64.85🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar | ||||||
| PTR | pdns85.ultradns.com | ||||||
| NS | pdns85.ultradns.biz | ||||||
| A | 2610:a1:1015::79🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar | ||||||
| PTR | pdns85.ultradns.biz | ||||||
| A | 156.154.66.85🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar | ||||||
| PTR | pdns85.ultradns.biz | ||||||
| NS | pdns85.ultradns.net | ||||||
| A | 2610:a1:1014::79🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar | ||||||
| PTR | pdns85.ultradns.net | ||||||
| A | 156.154.65.85🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar | ||||||
| PTR | pdns85.ultradns.net | ||||||
| NS | pdns85.ultradns.org | ||||||
| A | 2001:502:4612::79🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar | ||||||
| PTR | pdns85.ultradns.org | ||||||
| A | 156.154.67.85🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar | ||||||
| PTR | pdns85.ultradns.org | ||||||
| TXT | v=spf1 mx -all | ||||||
| SOA | pdns85.ultradns.comhostmaster@mheducation.com 2014-06-08 #23 | ||||||
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=1783084906 | ||||||
Subdomains
www.mathmatters1.com |
Same first word
mathmatters1.com |
DNS History
6 records (5 active, 1 former)
●NSpdns85.ultradns.biz2015-07-17 → 2026-07-03 · 2 obs
● 2026-07-03 13:28:12
●NSpdns85.ultradns.com2015-07-17 → 2026-07-03 · 2 obs
● 2026-07-03 13:28:12
●NSpdns85.ultradns.net2015-07-17 → 2026-07-03 · 2 obs
● 2026-07-03 13:28:12
●NSpdns85.ultradns.org2015-07-17 → 2026-07-03 · 2 obs
● 2026-07-03 13:28:12
○A192.243.93.752015-07-17 → 2018-02-19 · 4 obs
● 2018-02-19 04:16:50
○ 2026-04-11 01:49:10
○ 2026-07-03 13:28:12
●A204.74.99.1002026-04-11 → 2026-07-03 · 6 obs
● 2026-04-11 01:49:10
● 2026-05-08 19:05:06
○ 2026-05-13 21:08:46
● 2026-07-03 13:28:10
● 2026-07-03 13:28:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| mathmatters1.com | pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org | 2 records |
✅ Authoritative Response
Server:156.154.66.85
NS records: pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathmatters1.com (unsigned zone)
⏱️ Timing
Total: 398ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 204.74.99.100 |
| NS | 4 | pdns85.ultradns.biz, pdns85.ultradns.com... |
| TXT | 1 | v=spf1 mx -all |
| SOA | 1 | pdns85.ultradns.com hostmaster.mheducati |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (pdns85.ultradns.com, pdns85.ultradns.com)
Analysis
Hierarchy
mathmatters1.com serves as the parent of www.mathmatters1.com.
IP Addresses
mathmatters1.com points to a single IP number: 204.74.99.100.
Additional host names — ddosattacks.neustar, milupa.lv, staplesadvantagepremium.ca and two others — share IP numbers with mathmatters1.com.
Name Servers
mathmatters1.com has four authoritative name servers: pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net and pdns85.ultradns.org.
mathmatters1.com has at least partial name server overlap with other domains, such as prekmath.com, firstaidfortheboards.com, srailabs.com and two others.
pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net and pdns85.ultradns.org all point to exactly two IP numbers each: pdns85.ultradns.biz → 156.154.66.85 and 2610:a1:1015::79; pdns85.ultradns.com → 156.154.64.85 and 2001:502:f3ff::79; pdns85.ultradns.net → 156.154.65.85 and 2610:a1:1014::79; pdns85.ultradns.org → 156.154.67.85 and 2001:502:4612::79.