`mathematicsintervention.org`

DNSSEC	⚠️ Not signed
NS	`pdns85.ultradns.biz` ⚠️ Not in zone NS records
		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.com` ⚠️ Not in zone NS records
		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.net` ⚠️ Not in zone NS records
		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` ⚠️ Not in zone NS records
		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`

`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.info`hostmaster@donuts.email serial=1777024875

Same first word

mathematicsintervention.org

mathematicsintervention.info

DNS History

4 records (4 active, 0 former)

●NSpdns85.ultradns.biz2026-04-23 → 2026-04-24 · 2 obs

● 2026-04-23 10:34:10
● 2026-04-24 10:24:18

●NSpdns85.ultradns.com2026-04-23 → 2026-04-24 · 2 obs

● 2026-04-23 10:34:10
● 2026-04-24 10:24:18

●NSpdns85.ultradns.net2026-04-23 → 2026-04-24 · 2 obs

● 2026-04-23 10:34:10
● 2026-04-24 10:24:18

●NSpdns85.ultradns.org2026-04-23 → 2026-04-24 · 2 obs

● 2026-04-23 10:34:10
● 2026-04-24 10:24:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, b0.org.afilias-nst.org, d0.org.afilias-nst.org	-
mathematicsintervention.org	pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.org, pdns85.ultradns.biz	2 records

✅ Authoritative Response

Server:156.154.64.85

NS records: pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.org, pdns85.ultradns.biz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathematicsintervention.org (unsigned zone)

⏱️ Timing

Total: 256ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (pdns85.ultradns.org, pdns85.ultradns.org)

Analysis

Name Servers

mathematicsintervention.org is delegated to four name servers: pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net and pdns85.ultradns.org.

mathematicsintervention.org shares some name servers with other domains, for example mhriib.com, mcgraw-hillresidentscentral.com, connectpsychology.ca, mhereadingbasics.com and segconnect.com.

Host names with two IP numbers

Two IPs per host:

pdns85.ultradns.biz points to 2610:a1:1015::79 and 156.154.66.85

pdns85.ultradns.com points to 2001:502:f3ff::79 and 156.154.64.85

pdns85.ultradns.net points to 2610:a1:1014::79 and 156.154.65.85

pdns85.ultradns.org points to 2001:502:4612::79 and 156.154.67.85

mathematicsintervention.org - robtex.com