arrivemath.org - dns.ninja
arrivemath.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 192.243.85.12🇺🇸 F5192.243.85.0/24 hosted | ||||||
| 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 | ||||||
| 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 | ||||||
| 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 | ||||||
| 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 | ||||||
| TXT | v=spf1 -all | ||||||
| TXT | 2zsvhspvz8rzys8jgcn6qqbjpt9f9lwn | ||||||
| TXT | lmz95pd1j1rr914hw8gldqjtkbvykfgq | ||||||
| SOA | pdns85.ultradns.comhostmaster@mheducation.com 2017-09-21 #20 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1783437079 | ||||||
Same first word
DNS History
5 records (5 active, 0 former)
●NSpdns85.ultradns.biz2026-04-23 → 2026-07-07 · 2 obs
● 2026-07-07 15:50:48
●NSpdns85.ultradns.com2026-04-23 → 2026-07-07 · 2 obs
● 2026-07-07 15:50:48
●NSpdns85.ultradns.net2026-04-23 → 2026-07-07 · 2 obs
● 2026-07-07 15:50:48
●NSpdns85.ultradns.org2026-04-23 → 2026-07-07 · 2 obs
● 2026-07-07 15:50:48
●A192.243.85.122026-04-23 → 2026-07-07 · 2 obs
● 2026-07-07 15:50:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org | - |
| arrivemath.org | pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net, pdns85.ultradns.org | 2 records |
✅ Authoritative Response
Server:156.154.65.85
NS records: pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net, pdns85.ultradns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for arrivemath.org (unsigned zone)
⏱️ Timing
Total: 493ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 192.243.85.12 |
| NS | 4 | pdns85.ultradns.biz, pdns85.ultradns.com... |
| TXT | 3 | v=spf1 -all, 2zsvhspvz8rzys8jgcn6qqbjpt9f9lwn... |
| SOA | 1 | pdns85.ultradns.com hostmaster.mheducati |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (pdns85.ultradns.org, pdns85.ultradns.org)
Analysis
IP Addresses
arrivemath.org points to a single IP number: 192.243.85.12.
Additional host names — mathintervention.com, mhereadingwonders.com, ellevateenglish.com and two others — share IP numbers with arrivemath.org.
Name Servers
arrivemath.org has four authoritative name servers: pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net and pdns85.ultradns.org.
At least some of arrivemath.org's name servers are shared with other domains, for example ommbid.com, shopmcgrawhilleducation.com, mhmedical-education.com and two more.
Four hostnames, each resolving to a pair of IP addresses: pdns85.ultradns.biz directs to 156.154.66.85 and 2610:a1:1015::79; pdns85.ultradns.com directs to 156.154.64.85 and 2001:502:f3ff::79; pdns85.ultradns.net directs to 156.154.65.85 and 2610:a1:1014::79; pdns85.ultradns.org directs to 156.154.67.85 and 2001:502:4612::79.