support.activebuilding.com - dns.ninja

`support.activebuilding.com`

CNAME	`activebuilding.zendesk.com`
DNSSEC	⚠️ Not signed
A	216.198.53.2^{🇺🇸 CLOUDFLARESPECTRUM216.198.53.0/24 989 Market St San Francisco CA 94103 United States}
A	216.198.54.2^{🇺🇸 CLOUDFLARESPECTRUM216.198.54.0/24 989 Market St San Francisco CA 94103 United States}
MX	`mail.zendesk.com` ⭐
		A	3.211.161.173^{🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-211-161-173.compute-1.amazonaws.com`
		A	34.227.209.168^{🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix}
			PTR	`ec2-34-227-209-168.compute-1.amazonaws.com`
		A	52.21.142.91^{🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix}
			PTR	`ec2-52-21-142-91.compute-1.amazonaws.com`
TXT	`v=spf1 include:_netblocks.zdsys.com ~all`

`activebuilding.com`

	DNSSEC	⚠️ Not signed
	A	173.223.234.137^{🇺🇸 AKAMAI-ASN1173.223.234.0/24 Akamai Technologies}
	A	173.223.234.143^{🇺🇸 AKAMAI-ASN1173.223.234.0/24 Akamai Technologies}
	A	173.223.234.153^{🇺🇸 AKAMAI-ASN1173.223.234.0/24 Akamai Technologies}
	NS	`rpns1.realpage.com` ⭐
	NS	`rpns2.realpage.com`
	NS	`rpns3.realpage.com`
	NS	`rpns4.realpage.com`
	MX	`activebuilding-com.mail.protection.outlook.com` ⭐
	MX	`aspmx.l.google.com`⁽¹⁰⁾
	MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
	MX	`alt2.aspmx.l.google.com`⁽³⁰⁾
	MX	`aspmx2.googlemail.com`⁽⁴⁰⁾
	MX	`aspmx3.googlemail.com`⁽⁵⁰⁾
	TXT	`MS=ms62662552`
	TXT	`MS=ms14472708`
	TXT	`v=spf1 include:sendgrid.net include:support.zendesk.com include:_spf.google.c...`
	SOA	`rpns1.realpage.com`admin@realpage.com serial=316

rank #171529 globally
rank #71106 in the tld
📈 Tranco rank: #193,616

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DNS History

1 record (1 active, 0 former)

●CNAMEactivebuilding.zendesk.com2018-05-23 → 2026-07-28 · 2 obs

● 2018-05-23 19:39:16
● 2026-07-28 19:52:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
activebuilding.com	rpns3.realpage.com, rpns4.realpage.com, rpns1.realpage.com, rpns2.realpage.com	4 records

✅ Authoritative Response

Server:2.16.130.64

NS records: rpns3.realpage.com, rpns4.realpage.com, rpns1.realpage.com, rpns2.realpage.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for activebuilding.com (unsigned zone)

⏱️ Timing

Total: 148ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`activebuilding.zendesk.com`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (rpns3.realpage.com, rpns4.realpage.com, rpns1.realpage.com...)

Analysis

IP Addresses

support.activebuilding.com points to the IP addresses 216.198.53.2 and 216.198.54.2

emerald-milton.zendesk.com, tuteetutor.zendesk.com, hpfy.zendesk.com plus two other host names have IP numbers in common with support.activebuilding.com.

Mail Servers

support.activebuilding.com uses one mail server — mail.zendesk.com.

The mail server setup of support.activebuilding.com matches that of other domains such as myraceteam.zendesk.com, ddfdfaafa.zendesk.com, news2uinc.zendesk.com and two others.

mail.zendesk.com resolves to three IP numbers — 3.211.161.173, 34.227.209.168 and 52.21.142.91.