jameswillam.pub.open.substack.com - robtex.com
jameswillam.pub.open.substack.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:4400::ac40:9638🇺🇸 Cloudflare2606:4700:4400::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:440b::6812:25c8🇺🇸 Cloudflare2606:4700:440b::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.18.37.200Cloudflare104.18.37.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.64.150.56🇺🇸 Cloudflare172.64.150.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.18.37.200, 172.64.150.56 | ||||||
| IPv6 | 2606:4700:4400::ac40:9638, 2606:4700:440b::6812:25c8 | ||||||
pub.open.substack.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:4400::ac40:9638🇺🇸 Cloudflare2606:4700:4400::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:440b::6812:25c8🇺🇸 Cloudflare2606:4700:440b::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.18.37.200Cloudflare104.18.37.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.64.150.56🇺🇸 Cloudflare172.64.150.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.18.37.200, 172.64.150.56 | ||||||
| IPv6 | 2606:4700:4400::ac40:9638, 2606:4700:440b::6812:25c8 | ||||||
Subdomains
p.jameswillam.pub.open.substack.com |
DNS History
4 records (4 active, 0 former)
●A104.18.37.2002026-03-15 → 2026-03-27 · 2 obs
● 2026-03-27 23:15:02
●A172.64.150.562026-03-15 → 2026-03-27 · 2 obs
● 2026-03-27 23:15:02
●A2606:4700:4400::ac40:96382026-03-15 → 2026-03-27 · 2 obs
● 2026-03-27 23:15:02
●A2606:4700:440b::6812:25c82026-03-15 → 2026-03-27 · 2 obs
● 2026-03-27 23:15:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| substack.com | lee.ns.cloudflare.com, ali.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.192.59
NS records: lee.ns.cloudflare.com, ali.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for substack.com (unsigned zone)
⏱️ Timing
Total: 189ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.18.37.200, 172.64.150.56 |
| AAAA | 2 | 2606:4700:4400::ac40:9638, 2606:4700:440b::6812:25c8 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (lee.ns.cloudflare.com, lee.ns.cloudflare.com, lee.ns.cloudflare.com...)
Analysis
Hierarchy
jameswillam.pub.open.substack.com is a parent of p.jameswillam.pub.open.substack.com.
IP Addresses
jameswillam.pub.open.substack.com resolves to four IPs: 2606:4700:4400::ac40:9638, 2606:4700:440b::6812:25c8, 104.18.37.200 and 172.64.150.56.
Other host names such as html.p.manakaroyalty.substack.com, gameposts.substack.com, caitlinjohnstone.substack.com, auth.vantagemarkets.com and officialexpediahelp.substack.com share IP numbers with jameswillam.pub.open.substack.com.