`activation.hrblock.com`

DNSSEC	⚠️ Not signed
A	13.89.172.0^{🇺🇸 Microsoft13.64.0.0/11 MICROSOFT}
NS	`pdns1.registrar-servers.com` ⭐
		A	2610:a1:1024::100^{🇺🇸 MAINT-ID-120082610:a1:1024::/48 Neustar}
		A	156.154.132.100^{🇺🇸 MAINT-ID-12008156.154.132.0/24 Neustar}
NS	`pdns2.registrar-servers.com`
		A	2610:a1:1025::100^{🇺🇸 MAINT-ID-120082610:a1:1025::/48 Neustar}
		A	156.154.133.100^{🇺🇸 MAINT-ID-12008156.154.133.0/24 Neustar}
MX	`mxa.mailgun.org` ⭐
		A	34.160.13.42^{🇺🇸 Google34.160.0.0/16}
			PTR	`42.13.160.34.bc.googleusercontent.com`
MX	`mxb.mailgun.org` ⭐
		A	34.160.13.42^{🇺🇸 Google34.160.0.0/16}
			PTR	`42.13.160.34.bc.googleusercontent.com`
TXT	`v=spf1 include:mailgun.org ~all`
SOA	`pdns1.registrar-servers.com`hostmaster@registrar-servers.com serial=1585171615

`hrblock.com`

	DNSSEC	⚠️ Not signed
	A	20.98.176.55^{🇺🇸 Microsoft20.64.0.0/10}
	NS	`ns1-04.azure-dns.com` ⭐
	NS	`ns2-04.azure-dns.net`
	NS	`ns3-04.azure-dns.org`
	NS	`ns4-04.azure-dns.info`
	MX	`hrblock-com.mail.protection.outlook.com` ⭐
	TXT	`v=spf1 a mx ip4:20.84.177.68 ip4:20.84.177.70 ip4:35.80.141.6 ip4:44.229.121....`
	TXT	`apple-domain-verification=uWKqUpnzUVGDneYh`
	TXT	`Dynatrace-site-verification=d5f1cd2a-4fd5-4e7a-84e1-f3dc9cd8f0e5__1udgokcegsb...`
	TXT	`apple-domain-verification=bUjK4j4pDkWAr_von1QII0mxfWaL8570jfLYUgiYppU`
	TXT	`google-site-verification=aeZI60hcL3X1AlwL3mhGGDdHWtSlvTbpXqU4RLDUJz8`
	TXT	`liveramp-site-verification=M4RoHs9ffjJYuCa6wrv3DKOOegDNUDtOIf46fQZ2acU`
	TXT	`_sdoqggyavs2bcm251m1vbuonh0ypewh`
	TXT	`google-site-verification=G1Ga4hwgwABo0Ig2kVZTkdZN8K1DQeR5FX8plgxu7DM`
	TXT	`klaviyo-site-verification=VYaDL5`
	TXT	`yahoo-verification-key=fC7lO0bTzZID8iy34MAK3/mrxIbcIvyog+01YINyJjM=`
	TXT	`docker-verification=da2ce9ec-9c35-47d9-bf2f-7fbea0db01cf`
	TXT	`openai-domain-verification=dv-kqjVYmE7RV0Pgmrn98yZpTId`
	TXT	`7874fbf4-2603-43f6-b2a8-10e07a862f44`
	TXT	`hubspot-domain-verification=ZjczMzg1MjUtMzI3OS00NzgyLWJjNTMtMjIyYTc4MTAyYjhi`
	SOA	`ns1-04.azure-dns.com`dnssupport@hrblock.com serial=986837691

WOT: SAFE (93/100)
rank #9528 globally
rank #4723 in the tld
WOT: SAFE (93/100)
📈 Tranco rank: #5,398

Subdomains

www.activation.hrblock.com

Same first word

Similar names

vitaaction.com

cavitation.ch

cavitation.ru

cavitation.net

cavitation.us

cavitation.de

ctaviation.com

cavitation.jp

cavitation.com

DNS History

5 records (5 active, 0 former)

●NSpdns1.registrar-servers.com2026-02-22 → 2026-03-23 · 2 obs

● 2026-02-22 02:52:38
● 2026-03-23 20:26:58

●NSpdns2.registrar-servers.com2026-02-22 → 2026-03-23 · 2 obs

● 2026-02-22 02:52:38
● 2026-03-23 20:26:58

●MXmxa.mailgun.org2026-02-22 → 2026-03-23 · 2 obs

● 2026-02-22 02:52:38
● 2026-03-23 20:26:58

●MXmxb.mailgun.org2026-02-22 → 2026-03-23 · 2 obs

● 2026-02-22 02:52:38
● 2026-03-23 20:26:58

●A13.89.172.02026-02-22 → 2026-03-23 · 2 obs

● 2026-02-22 02:52:38
● 2026-03-23 20:26:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
hrblock.com	ns1-04.azure-dns.com, ns2-04.azure-dns.net, ns3-04.azure-dns.org, ns4-04.azure-dns.info	2 records
activation.hrblock.com	pdns1.registrar-servers.com, pdns2.registrar-servers.com	-

✅ Authoritative Response

Server:156.154.133.100

NS records: pdns1.registrar-servers.com, pdns2.registrar-servers.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hrblock.com (unsigned zone)

⏱️ Timing

Total: 501ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`13.89.172.0`
NS	2	`pdns1.registrar-servers.com, pdns2.registrar-servers.com`
MX	2	`mxa.mailgun.org (pri: 10), mxb.mailgun.org (pri: 10)`
TXT	1	`v=spf1 include:mailgun.org ~all`
SOA	1	`pdns1.registrar-servers.com hostmaster.r`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1-04.azure-dns.com, ns1-04.azure-dns.com)

Analysis

Hierarchy

activation.hrblock.com is a parent of www.activation.hrblock.com.

IP Addresses

activation.hrblock.com points to a single IP number: 13.89.172.0.

Other host names, for instance ahsaa.org, hotspringstrojans.com, rivieraimobiliaria.com.br, wmstigers.com and ne2bleague.org share IP numbers with activation.hrblock.com.

Name Servers

Delegation for activation.hrblock.com rests with two name servers, pdns1.registrar-servers.com and pdns2.registrar-servers.com.

activation.hrblock.com shares the same name server setup as other domains, including pstiming.com, dolls-byana.com, helpage.pro, a-h.photography and alexritchie.co.uk.

Host names with two IP numbers: pdns1.registrar-servers.com points to 2610:a1:1024::100 and 156.154.132.100; pdns2.registrar-servers.com points to 2610:a1:1025::100 and 156.154.133.100.

Mail Servers

activation.hrblock.com is handled by two mail servers: mxa.mailgun.org and mxb.mailgun.org.

activation.hrblock.com uses the same mail server configuration as other domains, such as prestigecdjrparts.com, hanru.org, rabahy.com, quirkethic.com and btc-faq.com.

activation.hrblock.com shares mail servers with other domains at least in part, for instance itsyourskills.com, themonaegroupllc.com, libertystore.lk, kakakdewa.org and atagames.com.

These mail servers are often used together with alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, mx2.zoho.com and mx3.zoho.com.

Host names sharing a single IP:

mxa.mailgun.org points to 34.160.13.42

mxb.mailgun.org points to 34.160.13.42

Host names that point to 34.160.13.42: mxa.mailgun.org and mxb.mailgun.org

activation.hrblock.com - robtex.com