🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`substackcode.com`

DNSSEC	⚠️ Not signed
A	2606:4700:4404::ac40:9428^{🇺🇸 Cloudflare2606:4700:4404::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2a06:98c1:3109::6812:27d8^{🇺🇸 Cloudflare2a06:98c1:3109::/48} ✓ In HTTPS hints
A	104.18.39.216^{Cloudflare104.18.39.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.64.148.40^{🇺🇸 Cloudflare172.64.148.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ali.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a3b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ali.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c03b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ali.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:203b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ali.ns.cloudflare.com`
		A	108.162.192.59^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ali.ns.cloudflare.com`
		A	172.64.32.59^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ali.ns.cloudflare.com`
		A	173.245.58.59^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ali.ns.cloudflare.com`
NS	`lee.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b81^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lee.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c181^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lee.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2181^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lee.ns.cloudflare.com`
		A	108.162.193.129^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lee.ns.cloudflare.com`
		A	172.64.33.129^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lee.ns.cloudflare.com`
		A	173.245.59.129^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lee.ns.cloudflare.com`
HTTPS	HTTP/2 ✓ hints match
		IPv4 hints	104.18.39.216, 172.64.148.40
		IPv6 hints	2606:4700:4404::ac40:9428, 2a06:98c1:3109::6812:27d8
SOA	`ali.ns.cloudflare.com`dns@cloudflare.com serial=2412384118

`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=1787880770

Subdomains

de77124e-6965-4d72-9873-3d9c8d0a86bf.substackcode.com

Same first word

substackcode.com

Previous names

Next names

DNS History

6 records (6 active, 0 former)

●NSali.ns.cloudflare.com2026-08-12 → 2026-08-28 · 2 obs

● 2026-08-12 16:04:30
● 2026-08-28 01:38:10

●NSlee.ns.cloudflare.com2026-08-12 → 2026-08-28 · 2 obs

● 2026-08-12 16:04:30
● 2026-08-28 01:38:10

●A104.18.39.2162026-08-12 → 2026-08-28 · 2 obs

● 2026-08-12 16:04:30
● 2026-08-28 01:38:10

●A172.64.148.402026-08-12 → 2026-08-28 · 2 obs

● 2026-08-12 16:04:30
● 2026-08-28 01:38:10

●A2606:4700:4404::ac40:94282026-08-12 → 2026-08-28 · 2 obs

● 2026-08-12 16:04:30
● 2026-08-28 01:38:10

●A2a06:98c1:3109::6812:27d82026-08-12 → 2026-08-28 · 2 obs

● 2026-08-12 16:04:30
● 2026-08-28 01:38:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
substackcode.com	lee.ns.cloudflare.com, ali.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:172.64.32.59

NS records: lee.ns.cloudflare.com, ali.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for substackcode.com (unsigned zone)

⏱️ Timing

Total: 283ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.64.148.40, 104.18.39.216`
AAAA	2	`2606:4700:4404::ac40:9428, 2a06:98c1:3109::6812:27d8`
NS	2	`ali.ns.cloudflare.com, lee.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`
SOA	1	`ali.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

substackcode.com is the parent zone for de77124e-6965-4d72-9873-3d9c8d0a86bf.substackcode.com.

IP Addresses

substackcode.com resolves to four IP addresses: 104.18.39.216, 172.64.148.40, 2606:4700:4404::ac40:9428 and 2a06:98c1:3109::6812:27d8.

Among the host names that share IP numbers with substackcode.com are secure-suggest.webstart-page.com, interviewed.exposed, www.sleipner.org.cdn.cloudflare.net and two others.

Name Servers

Two name servers handle the delegation for substackcode.com: ali.ns.cloudflare.com and lee.ns.cloudflare.com.

substackcode.com has the same name server delegation as a number of other domains, such as avpersonal.workers.dev, shadum.com, odva.fun and two more.

substackcode.com partially shares its NS delegation with several other domains, including towin9.org, keydent.ir, huayhit99-th.com and two others.

These name servers regularly co-occur with the name servers aarav.ns.cloudflare.com, anton.ns.cloudflare.com and galilea.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

ali.ns.cloudflare.com resolves to 108.162.192.59, 172.64.32.59 and 173.245.58.59 among others, with 3 other IP addresses in total.

lee.ns.cloudflare.com resolves to 108.162.193.129, 172.64.33.129 and 173.245.59.129 among others, with 3 other IP addresses in total.

substackcode.com - robtex.com