`mathintervention.info`

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`

`info`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.info.afilias-nst.info` ⭐
	NS	`a2.info.afilias-nst.info`
	NS	`b0.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`b2.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`c0.info.afilias-nst.info`
	NS	`d0.info.afilias-nst.org` ⚠️ Not in parent delegation
	SOA	`a0.info.afilias-nst.info`hostmaster@donuts.email serial=1777062401

Same first word

mathintervention.com

mathintervention.org

mathintervention.info

mathintervention.net

DNS History

4 records (4 active, 0 former)

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

● 2026-04-24 09:22:42
● 2026-04-24 21:06:14

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

● 2026-04-24 09:22:42
● 2026-04-24 21:06:14

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

● 2026-04-24 09:22:42
● 2026-04-24 21:06:14

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

● 2026-04-24 09:22:42
● 2026-04-24 21:06:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
info	a0.info.afilias-nst.info, a2.info.afilias-nst.info, c0.info.afilias-nst.info	-
mathintervention.info	pdns85.ultradns.net, pdns85.ultradns.org, pdns85.ultradns.biz, pdns85.ultradns.com	-

✅ Authoritative Response

Server:156.154.66.85

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathintervention.info (unsigned zone)

⏱️ Timing

Total: 650ms | Queries: -

📄 Records

Type	Count	Sample Data

Analysis

Name Servers

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

mathintervention.info at least partially shares name servers with other domains, including wncpmath10.com, mcgrawhill-textbooks.com, simnetkeepitsimple.com, topclassroom.us and mcgrawhill.gen.in.

Hosts with two IP numbers:

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

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

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

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

mathintervention.info - robtex.com