Social & community
Who hosts substack.com?
substack.com's homepage is behind Cloudflare. Visitors connect to Cloudflare's network, which fetches pages from the origin server, so that server's address and hosting company aren't publicly visible.
- Origin
- Behind Cloudflare (origin hidden)
- CDN / proxy
- Cloudflare
- DNS hosted at
- Cloudflare
- ali.ns.cloudflare.com, lee.ns.cloudflare.com
- Platform
- Not identified
- IP network
- AS13335
- CLOUDFLARENET - Cloudflare, Inc., US
What the public signals show
DNS for substack.com is managed at Cloudflare (nameservers ali.ns.cloudflare.com and lee.ns.cloudflare.com).
Evidence
- The IP is a Cloudflare edge — it sits in front of the real server and hides its address
Questions about substack.com
Who hosts substack.com?
substack.com's homepage is behind Cloudflare.
Is substack.com on Cloudflare?
Yes — substack.com's responses come through Cloudflare's network.
Where is substack.com's DNS hosted?
At Cloudflare, based on the domain's NS records.
Checked 2026-10-01from public DNS records, IP network registrations (via Team Cymru's ASN data) and the site's HTTP response headers. Hosting can change at any time — use the live re-check for the current answer. substack.com is a trademark of its owner; this page is not affiliated with or endorsed by them.
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