`abacusseries.com`

DNSSEC	⚠️ Not signed
A	151.101.2.159^{🇺🇸 Fastly151.101.0.0/22}
NS	`pdns91.ultradns.com` ⭐
		A	2001:502:f3ff::7f^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`pdns91.ultradns.com`
		A	156.154.64.91^{🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar}
			PTR	`pdns91.ultradns.com`
NS	`pdns91.ultradns.biz`
		A	2610:a1:1015::7f^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`pdns91.ultradns.biz`
		A	156.154.66.91^{🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar}
			PTR	`pdns91.ultradns.biz`
NS	`pdns91.ultradns.net`
		A	2610:a1:1014::7f^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`pdns91.ultradns.net`
		A	156.154.65.91^{🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar}
			PTR	`pdns91.ultradns.net`
NS	`pdns91.ultradns.org`
		A	2001:502:4612::7f^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`pdns91.ultradns.org`
		A	156.154.67.91^{🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar}
			PTR	`pdns91.ultradns.org`
MX	`abacusseries-com.mail.protection.outlook.com` ⭐
TXT	`v=spf1 -all`
SOA	`pdns91.ultradns.com`ipdse@horacemann.com 2023-08-01 #5

`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.net`nstld@verisign-grs.com serial=1776238912

Subdomains

www.abacusseries.com

Same first word

abacusseries.com

DNS History

13 records (6 active, 7 former)

○NSns1.lnhi.net2015-08-05 → 2020-02-04 · 4 obs

● 2015-08-05 11:01:18
● 2020-02-04 06:55:28
○ 2026-04-08 08:57:30
○ 2026-04-15 08:05:16

○NSns2.lnhi.net2015-08-05 → 2020-02-04 · 4 obs

● 2015-08-05 11:01:18
● 2020-02-04 06:55:28
○ 2026-04-08 08:57:30
○ 2026-04-15 08:05:16

○NSns3.lnhi.net2015-08-05 → 2020-02-04 · 4 obs

● 2015-08-05 11:01:18
● 2020-02-04 06:55:28
○ 2026-04-08 08:57:30
○ 2026-04-15 08:05:16

●NSpdns91.ultradns.biz2026-04-08 → 2026-04-15 · 3 obs

○ 2020-02-04 06:55:28
● 2026-04-08 08:57:30
● 2026-04-15 08:05:16

●NSpdns91.ultradns.com2026-04-08 → 2026-04-15 · 3 obs

○ 2020-02-04 06:55:28
● 2026-04-08 08:57:30
● 2026-04-15 08:05:16

●NSpdns91.ultradns.net2026-04-08 → 2026-04-15 · 3 obs

○ 2020-02-04 06:55:28
● 2026-04-08 08:57:30
● 2026-04-15 08:05:16

●NSpdns91.ultradns.org2026-04-08 → 2026-04-15 · 3 obs

○ 2020-02-04 06:55:28
● 2026-04-08 08:57:30
● 2026-04-15 08:05:16

●MXabacusseries-com.mail.protection.outlook.com2026-04-08 → 2026-04-15 · 3 obs

○ 2020-02-04 06:55:28
● 2026-04-08 08:57:30
● 2026-04-15 08:05:16

○MXmx.spamexperts.com2015-08-05 → 2020-02-04 · 4 obs

● 2015-08-05 11:01:18
● 2020-02-04 06:55:28
○ 2026-04-08 08:57:30
○ 2026-04-15 08:05:16

○A130.211.148.1182016-03-13 → 2017-02-19 · 5 obs

○ 2015-12-04 17:42:58
● 2016-03-13 05:18:50
● 2017-02-19 20:08:58
○ 2020-02-04 06:55:28
○ 2026-04-15 08:05:16

●A151.101.2.1592026-04-08 → 2026-04-15 · 3 obs

○ 2020-02-04 06:55:28
● 2026-04-08 08:57:30
● 2026-04-15 08:05:16

○A54.208.112.592015-08-05 → 2015-12-04 · 4 obs

● 2015-08-05 11:01:18
● 2015-12-04 17:42:58
○ 2016-03-13 05:18:50
○ 2026-04-15 08:05:16

○A68.65.122.1952020-02-04 → 2020-02-04 · 4 obs

○ 2017-02-19 20:08:58
● 2020-02-04 06:55:28
○ 2026-04-08 08:57:30
○ 2026-04-15 08:05:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
abacusseries.com	pdns91.ultradns.net, pdns91.ultradns.com, pdns91.ultradns.biz, pdns91.ultradns.org	2 records

✅ Authoritative Response

Server:156.154.64.91

NS records: pdns91.ultradns.net, pdns91.ultradns.com, pdns91.ultradns.biz, pdns91.ultradns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for abacusseries.com (unsigned zone)

⏱️ Timing

Total: 304ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`151.101.2.159`
NS	4	`pdns91.ultradns.biz, pdns91.ultradns.com...`
MX	1	`abacusseries-com.mail.protection.outlook`
TXT	1	`v=spf1 -all`
SOA	1	`pdns91.ultradns.com ipdse.horacemann.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (pdns91.ultradns.com, pdns91.ultradns.com)

Analysis

Hierarchy

abacusseries.com is the parent of www.abacusseries.com.

IP Addresses

abacusseries.com points to a single IP number: 151.101.2.159.

other host names for instance westovercompanies.com, graniterootsbrewing.com, dannevins.com, abraxasworldwide.com and philanthropyjournal.com share IP numbers with abacusseries.com.

Name Servers

abacusseries.com is delegated to four name servers: pdns91.ultradns.biz, pdns91.ultradns.com, pdns91.ultradns.net and pdns91.ultradns.org.

abacusseries.com at least partially shares name servers with other domains, for instance bloomenergy.com, rbleipzig.net, redbullskydiveteam.com, redbull.mk and redbullcola.nl.

These name servers are often used with ns15.ultradns2.com and ns15.ultradns2.org.

Host names with two IP numbers:

Host name pdns91.ultradns.biz points to: 2610:a1:1015::7f and 156.154.66.91.

Host name pdns91.ultradns.com points to: 2001:502:f3ff::7f and 156.154.64.91.

Host name pdns91.ultradns.net points to: 2610:a1:1014::7f and 156.154.65.91.

Host name pdns91.ultradns.org points to: 2001:502:4612::7f and 156.154.67.91.

Mail Servers

abacusseries.com is handled by a single mail server, abacusseries-com.mail.protection.outlook.com.

abacusseries.com - robtex.com