🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`substacktools.com`

DNSSEC	⚠️ Not signed
A	76.76.21.21^{🇺🇸 Amazon76.76.21.0/24 EC2 Prefix}
NS	`lochlan.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cea^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lochlan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3ea^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lochlan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23ea^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lochlan.ns.cloudflare.com`
		A	108.162.195.234^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lochlan.ns.cloudflare.com`
		A	162.159.44.234^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lochlan.ns.cloudflare.com`
		A	172.64.35.234^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lochlan.ns.cloudflare.com`
NS	`pola.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ad6^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pola.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d6^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`pola.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d6^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`pola.ns.cloudflare.com`
		A	108.162.192.214^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pola.ns.cloudflare.com`
		A	172.64.32.214^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pola.ns.cloudflare.com`
		A	173.245.58.214^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pola.ns.cloudflare.com`
MX	`mx1.spacemail.com` ⭐
		A	162.255.118.30^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`mx1.spacemail.com`
MX	`mx2.spacemail.com` ⭐
		A	162.255.118.31^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`mx2.spacemail.com`
MX	`mx1.forwardemail.net`⁽¹⁰⁾
		A	2604:a880:2:d0::306:1^{🇺🇸 DIGITALOCEAN2604:a880:2::/48 DigitalOcean}
			PTR	`mx1.forwardemail.net`
		A	2a02:6ea0:d71e::2^{🇺🇸 CDN772a02:6ea0:d700::/40 Denver IPv6}
			PTR	`mx1.forwardemail.net`
		A	121.127.44.56^{🇺🇸 CDN77121.127.44.0/24 Denver}
			PTR	`mx1.forwardemail.net`
		A	138.197.213.185^{🇺🇸 DIGITALOCEAN138.197.208.0/20 DigitalOcean}
			PTR	`mx1.forwardemail.net`
MX	`mx2.forwardemail.net`⁽¹⁰⁾
		A	2604:a880:400:d1::cd:9001^{🇺🇸 DIGITALOCEAN2604:a880:400::/48 DigitalOcean}
			PTR	`mx2.forwardemail.net`
		A	2a02:6ea0:d71e::1^{🇺🇸 CDN772a02:6ea0:d700::/40 Denver IPv6}
			PTR	`mx2.forwardemail.net`
		A	104.248.224.170^{🇺🇸 DIGITALOCEAN104.248.224.0/20 DigitalOcean}
			PTR	`mx2.forwardemail.net`
		A	121.127.44.59^{🇺🇸 CDN77121.127.44.0/24 Denver}
			PTR	`mx2.forwardemail.net`
TXT	`0193c0ad-592c-4823-9844-0b2d1c2faca7`
TXT	`forward-email-site-verification=mglA5VarlC`
TXT	`google-gws-recovery-domain-verification=64082166`
TXT	`google-site-verification=P-iaJK2uKwMdpyVgrYiv3PVPReS1ix_TNn5_T4CXPc8`
TXT	`google-site-verification=l6FfPIEytL-ZPBKltkt3Tq_mAbz6uPDRi9bYEQXMZGw`
TXT	`v=spf1 include:spf.spacemail.com ~all`
SOA	`lochlan.ns.cloudflare.com`dns@cloudflare.com serial=2412185825

`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=1787580721

Same first word

substacktools.com

Previous names

Next names

DNS History

7 records (7 active, 0 former)

●NSlochlan.ns.cloudflare.com2026-08-15 → 2026-08-24 · 2 obs

● 2026-08-15 12:33:30
● 2026-08-24 14:15:58

●NSpola.ns.cloudflare.com2026-08-15 → 2026-08-24 · 2 obs

● 2026-08-15 12:33:30
● 2026-08-24 14:15:58

●MXmx1.forwardemail.net2026-08-15 → 2026-08-24 · 2 obs

● 2026-08-15 12:33:30
● 2026-08-24 14:15:58

●MXmx1.spacemail.com2026-08-15 → 2026-08-24 · 2 obs

● 2026-08-15 12:33:30
● 2026-08-24 14:15:58

●MXmx2.forwardemail.net2026-08-15 → 2026-08-24 · 2 obs

● 2026-08-15 12:33:30
● 2026-08-24 14:15:58

●MXmx2.spacemail.com2026-08-15 → 2026-08-24 · 2 obs

● 2026-08-15 12:33:30
● 2026-08-24 14:15:58

●A76.76.21.212026-08-15 → 2026-08-24 · 2 obs

● 2026-08-15 12:33:30
● 2026-08-24 14:15:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
substacktools.com	pola.ns.cloudflare.com, lochlan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.214

NS records: pola.ns.cloudflare.com, lochlan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for substacktools.com (unsigned zone)

⏱️ Timing

Total: 213ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`76.76.21.21`
NS	2	`lochlan.ns.cloudflare.com, pola.ns.cloudflare.com`
MX	4	`mx1.spacemail.com (pri: 0), mx2.spacemail.com (pri: 0)...`
TXT	6	`0193c0ad-592c-4823-9844-0b2d1c2faca7, forward-email-site-verification=mglA5Var...`
SOA	1	`lochlan.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (pola.ns.cloudflare.com, pola.ns.cloudflare.com, pola.ns.cloudflare.com...)

Analysis

IP Addresses

substacktools.com points to a single IP number: 76.76.21.21.

Additional host names — kalvinwolf.com, krumzi.com, massmarket.ai and two others — share IP numbers with substacktools.com.

Name Servers

substacktools.com is delegated to two name servers: lochlan.ns.cloudflare.com and pola.ns.cloudflare.com.

substacktools.com shares its name server setup with other domains, including esgouveia.pt, bolenscontrolhouse.com, theturbot.uk and two others.

substacktools.com has at least partial name server overlap with other domains, such as dq-14f.workers.dev, whrckj.com, eczema-miracle.com and two others.

It is common to find these name servers paired with the name servers elle.ns.cloudflare.com.

Host names with 6 IP numbers:

lochlan.ns.cloudflare.com resolves to 108.162.195.234, 162.159.44.234, 172.64.35.234 and 3 other IP addresses.

pola.ns.cloudflare.com resolves to 108.162.192.214, 172.64.32.214, 173.245.58.214 and 3 other IP addresses.

Mail Servers

Four mail servers handle email for substacktools.com: mx1.spacemail.com, mx2.spacemail.com, mx1.forwardemail.net and mx2.forwardemail.net.

substacktools.com shares mail servers — at least in part — with other domains, including putlucht.nl, nationalcouncilona.com, goodmorningbitcoin.com and two others.

Host names resolving to four IP addresses:

mx1.forwardemail.net has four IP addresses: 121.127.44.56, 138.197.213.185, 2604:a880:2:d0::306:1 and 2a02:6ea0:d71e::2.

mx2.forwardemail.net has four IP addresses: 104.248.224.170, 121.127.44.59, 2604:a880:400:d1::cd:9001 and 2a02:6ea0:d71e::1.

Host names pointing to a single IP address:

mx1.spacemail.com points to 162.255.118.30.

mx2.spacemail.com points to 162.255.118.31.

substacktools.com - robtex.com