ipcheckme

IP address of substack.com

104.18.37.200

Site profile

substack.com

Site blocks automated checks · 429
Built withcloudflare

What we know about this site

IPv4 addresses

Summary

Popularity rank
#450 Tranco
CDN
Cloudflare
Hosting
AS13335 Cloudflare, Inc.
DNS provider
Cloudflare
Email
Mailgun
SPF
yes ~all
DMARC
p=reject
IPv6
yes

Server location

Country
Canada
Region
Ontario
City
Toronto
Hosting network
AS13335 Cloudflare, Inc.

Name servers

  • ali.ns.cloudflare.com
  • lee.ns.cloudflare.com

Mail servers

  • mxa.mailgun.org
  • mxb.mailgun.org

IPv6 addresses

  • 2606:4700:4404::6812:25c8
  • 2606:4700:4401::ac40:9638

Sites of similar popularity

Other sites on Cloudflare, Inc.

Questions and answers

What is the IP address of substack.com?

substack.com answers from 104.18.37.200, with 2 IPv4 addresses in total. Addresses can change; this page refreshes the data when opened.

Where is the substack.com server located?

The site runs on the Cloudflare CDN, so you see the nearest edge node (Toronto, Ontario, Canada). The origin server is hidden.

Who hosts substack.com?

The address belongs to the Cloudflare, Inc. network, autonomous system AS13335.

Who provides DNS for substack.com?

DNS for the domain is hosted by Cloudflare: ali.ns.cloudflare.com, lee.ns.cloudflare.com.

When was substack.com registered?

The domain was registered on 2010-04-27 through Amazon Registrar, Inc..

Which email provider does substack.com use?

Email is hosted by Mailgun. SPF is configured.