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substack.com checked at 2025-10-30T08:51:04.200Z 267ms 229/229/229 100% R:14substack.com
com
rank #278 in the tld
This domain, "substack.com", is an online platform that provides publishing tools for independent writers and journalists. It allows them to send digital newsletters directly to subscribers. The platform offers a business model that enables writers to monetize their work through subscriptions.
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substack.com is a parent of qbcutomerservicenumber.substack.com, officialhelpcare.substack.com, newsreviews.substack.com, wisdomblend.substack.com, chandanamandawala.substack.com and hundreds of other host names.
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 caitlinjohnstone.substack.com, officialexpediahelp.substack.com, fun88india.substack.com, dcplanetfr.substack.com and luxembourg.decathlon.be.cdn.cloudflare.net share IP numbers with substack.com.
substack.com is delegated to two name servers: ali.ns.cloudflare.com and lee.ns.cloudflare.com.
substack.com uses the same name server setup as other domains, including vzsp.ru, kafein.org, jkpcoin.com, randompress.net and mndr.be.
At least part of the name servers for substack.com are shared with other domains, for instance fourscale.com, austinmoms.com, communionmusic.co.uk, articlequery.com and hillromdifference.com.
These name servers are commonly used alongside the name servers matteo.ns.cloudflare.com.
Host names with six IP numbers:
ali.ns.cloudflare.com points to: 2606:4700:50::adf5:3a3b, 2803:f800:50::6ca2:c03b, 2a06:98c1:50::ac40:203b, 108.162.192.59, 172.64.32.59 and 173.245.58.59.
lee.ns.cloudflare.com points to: 2606:4700:58::adf5:3b81, 2803:f800:50::6ca2:c181, 2a06:98c1:50::ac40:2181, 108.162.193.129, 172.64.33.129 and 173.245.59.129.
substack.com is handled by two mail servers: mxa.mailgun.org and mxb.mailgun.org.
substack.com uses the same mail server setup as other domains, for instance mason-rose.ca, post.leadhit.ru, z.teachablemail.com, buycoins.ca and philadelphiavotes.com.
substack.com shares at least some mail servers with other domains, for example lokobuzz.com, myoneoffer.com, ihtspirit.com, sitetor.com and ketengo.com.
these mail servers are frequently used alongside the mail servers aspmx.l.google.com.
Host names sharing a single IP: mxa.mailgun.org and mxb.mailgun.org point to 34.160.157.95.