mathmatters2.com - dns.ninja
mathmatters2.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=1782641655 | ||||||
Same first word
mathmatters2.com |
DNS History
6 records (5 active, 1 former)
●NSpdns85.ultradns.biz2015-08-03 → 2026-06-28 · 2 obs
● 2026-06-28 10:23:02
●NSpdns85.ultradns.com2015-08-03 → 2026-06-28 · 2 obs
● 2026-06-28 10:23:02
●NSpdns85.ultradns.net2015-08-03 → 2026-06-28 · 2 obs
● 2026-06-28 10:23:02
●NSpdns85.ultradns.org2015-08-03 → 2026-06-28 · 2 obs
● 2026-06-28 10:23:02
○A192.243.93.752015-08-03 → 2017-09-03 · 4 obs
● 2017-09-03 14:27:00
○ 2026-04-24 21:06:18
○ 2026-06-28 10:23:02
●A204.74.99.1002026-04-24 → 2026-06-28 · 3 obs
● 2026-04-24 21:06:18
● 2026-06-28 10:23:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| mathmatters2.com | pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org | 2 records |
✅ Authoritative Response
Server:156.154.65.85
NS records: pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathmatters2.com (unsigned zone)
⏱️ Timing
Total: 383ms | 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
IP Addresses
mathmatters2.com resolves to one IP address: 204.74.99.100.
humanamailorder.com, researchsurvey.org, nationaldentalplans.com and two other host names share IP numbers with mathmatters2.com.
Name Servers
The authoritative name servers for mathmatters2.com are pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net and pdns85.ultradns.org.
The name servers of mathmatters2.com overlap at least partially with those of other domains — among them olearyseries.com, fitzpatrickdermatology.com, accessmhtelecom.com and two more.
Each of the four hosts pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net and pdns85.ultradns.org has two IP addresses. pdns85.ultradns.biz points to 156.154.66.85 and 2610:a1:1015::79. pdns85.ultradns.com points to 156.154.64.85 and 2001:502:f3ff::79. pdns85.ultradns.net points to 156.154.65.85 and 2610:a1:1014::79. pdns85.ultradns.org points to 156.154.67.85 and 2001:502:4612::79.