ajwriter.substack.com - dns.ninja
ajwriter.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 hints | 104.18.37.200, 172.64.150.56 | ||||||
| IPv6 hints | 2606:4700:4400::ac40:9638, 2606:4700:440b::6812:25c8 | ||||||
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 | ||||||
| NS | ali.ns.cloudflare.com ⭐ | ||||||
| NS | lee.ns.cloudflare.com | ||||||
| MX | mxa.mailgun.org ⭐ | ||||||
| MX | mxb.mailgun.org ⭐ | ||||||
| TXT | facebook-domain-verification=8vbxp2ntmkudc6is3h5r840c9fwo7f | ||||||
| TXT | google-site-verification=4V_X38Yf0J4VJcWFwtG38bOS1nkOWeIWJhticlMgNQE | ||||||
| TXT | google-site-verification=DAkdykID6WqQM6tT7IfSu9_uB7-qIdB039MA_C3T3eA | ||||||
| TXT | google-site-verification=FfNIQIxsRHpj3Y7E_d3N6GFqGgWDZ-sfYojqCilwtqE | ||||||
| TXT | google-site-verification=SXEl7_p4SBszcanSWwVc_3-RFky80c0-94janbeeWI4 | ||||||
| TXT | google-site-verification=vQEKLOUDfKNOQAv9W3EUMiRD6e5ibAEPhc2yCzP7big | ||||||
| TXT | tiktok-developers-site-verification=7PgqCAJ52ILLOqf2KELd8uaRfJpuzaLQ | ||||||
| TXT | tiktok-developers-site-verification=A9XRSo8lWy5CPFJ0bqI04KCpUZGAAq7p | ||||||
| TXT | v=spf1 include:_spf.google.com include:mailgun.org include:mail.zendesk.com ~all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.18.37.200, 172.64.150.56 | ||||||
| IPv6 hints | 2606:4700:4400::ac40:9638, 2606:4700:440b::6812:25c8 | ||||||
| SOA | ali.ns.cloudflare.comdns@cloudflare.com serial=2405435214 | ||||||
rank #110 in the tld
Semrush Rank:#326 Keywords:20,965,247 Traffic:8,317,919/mo
WOT: SAFE (50/100)
📈 Tranco rank: #494
Substack is a newsletter platform founded in 2017, enabling writers to build paid subscription businesses. With millions of readers and top writers earning over $1 million annually, Substack has revitalized independent journalism and writing.
Substack offers newsletter creation, paid subscriptions, podcasting, and Notes (social features). The platform takes a 10% cut of subscription revenue, making it attractive to independent writers.
Substack's infrastructure handles email delivery for thousands of newsletters with sophisticated deliverability optimization.
DNS for substack.com uses Cloudflare's authoritative DNS infrastructure. Email authentication is critical for newsletter deliverability.
DNS History
4 records (4 active, 0 former)
●A104.18.37.2002026-05-02 → 2026-06-05 · 2 obs
● 2026-06-05 20:25:20
●A172.64.150.562026-05-02 → 2026-06-05 · 2 obs
● 2026-06-05 20:25:20
●A2606:4700:4400::ac40:96382026-05-02 → 2026-06-05 · 2 obs
● 2026-06-05 20:25:20
●A2606:4700:440b::6812:25c82026-05-02 → 2026-06-05 · 2 obs
● 2026-06-05 20:25:20
🔍 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:108.162.193.129
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: 198ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.18.37.200, 172.64.150.56 |
| AAAA | 2 | 2606:4700:440b::6812:25c8, 2606:4700:4400::ac40:9638 |
| 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
IP Addresses
ajwriter.substack.com resolves to 4 IP numbers: 104.18.37.200, 172.64.150.56, 2606:4700:4400::ac40:9638 and 2606:4700:440b::6812:25c8.
Additional host names — www.vantagemarkets.com, ronaldgruner.substack.com, zanete-ferguson-professional-and.html.p.trendingvlogger.substack.com and two others — share IP numbers with ajwriter.substack.com.