`appsheartbeat.com`

DNSSEC	⚠️ Not signed
NS	`a3.share-dns.com` ⭐ ⚠️ Not in parent delegation
		A	172.64.53.25^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`a.share-dns.com` ⚠️ Not in zone NS records
		A	172.64.53.25^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`b.share-dns.net` ⚠️ Not in zone NS records
		A	172.64.52.239^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`b3.share-dns.net` ⚠️ Not in parent delegation
		A	172.64.52.239^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`mail.emb666.com` ⭐
		A	172.65.225.8^{🇺🇸 Cloudflare172.65.224.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
TXT	`v=spf1 include:spf.emb666.com ~all`
SOA	`a.share-dns.com`master@share-dns.com serial=1778501679

`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=1778627796

⚠️ On DNS blocklist: tif

Same first word

appsheartbeat.com

DNS History

5 records (5 active, 0 former)

●NSa.share-dns.com2026-05-07 → 2026-05-12 · 2 obs

● 2026-05-07 13:20:52
● 2026-05-12 23:44:14

●NSa3.share-dns.com2026-05-07 → 2026-05-12 · 2 obs

● 2026-05-07 13:20:52
● 2026-05-12 23:44:14

●NSb.share-dns.net2026-05-07 → 2026-05-12 · 2 obs

● 2026-05-07 13:20:52
● 2026-05-12 23:44:14

●NSb3.share-dns.net2026-05-07 → 2026-05-12 · 2 obs

● 2026-05-07 13:20:52
● 2026-05-12 23:44:14

●MXmail.emb666.com2026-05-07 → 2026-05-12 · 2 obs

● 2026-05-07 13:20:52
● 2026-05-12 23:44:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, m.gtld-servers.net, g.gtld-servers.net, k.gtld-servers.net...	-
appsheartbeat.com	b3.share-dns.net, a3.share-dns.com	1 record

✅ Authoritative Response

Server:172.64.53.25

NS records: b3.share-dns.net, a3.share-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for appsheartbeat.com (unsigned zone)

⏱️ Timing

Total: 429ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`a.share-dns.com, b.share-dns.net`
MX	1	`mail.emb666.com (pri: 5)`
TXT	1	`v=spf1 include:spf.emb666.com ~all`
SOA	1	`a.share-dns.com master.share-dns.com`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (a3.share-dns.com)

Analysis

Name Servers

appsheartbeat.com is delegated to four name servers: a3.share-dns.com, a.share-dns.com, b3.share-dns.net and b.share-dns.net.

appsheartbeat.com at least partially shares name servers with other domains, for instance 97828ff.vip, 8fc36a95c96c.top, lu4555.com, ashuileju.com and atazon.com.

These name servers are commonly used alongside a2.share-dns.com, b2.share-dns.net, a10.share-dns.com, b10.share-dns.net, a7.share-dns.com, b7.share-dns.net, ns1.gname-dns.com, ns2.gname-dns.com, a12.share-dns.com and b12.share-dns.net.

Host names with one IP target:

a3.share-dns.com maps to 172.64.53.25

a.share-dns.com maps to 172.64.53.25

b3.share-dns.net maps to 172.64.52.239

b.share-dns.net maps to 172.64.52.239

Host names that map to 172.64.53.25: a3.share-dns.com and a.share-dns.com

Host names that map to 172.64.52.239: b3.share-dns.net and b.share-dns.net

Mail Servers

appsheartbeat.com is handled by a single mail server, mail.emb666.com.

The mail server setup for appsheartbeat.com matches that of other domains, for instance amlverifications.net, todd4senate.org, hhys.cc, rakuten01.com and solooutfit.com.

appsheartbeat.com shares some mail servers with other domains, at least in part, for instance 001trade.com.

mail.emb666.com points to a single IP: 172.65.225.8.

appsheartbeat.com - robtex.com