WWW.RTSAK.COM - substack.com
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substack.com checked at 2025-09-26T13:30:25.289Z 317ms 137/137/137 100% R:15substack.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 points to four IP numbers: 2606:4700:4400::ac40:9638, 2606:4700:440b::6812:25c8, 104.18.37.200 and 172.64.150.56.
Other host names, for instance 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, for instance vzsp.ru, kafein.org, jkpcoin.com, randompress.net and mndr.be.
substack.com shares name servers with other domains at least partially, for instance fourscale.com, austinmoms.com, communionmusic.co.uk, articlequery.com and hillromdifference.com.
These name servers are commonly used with matteo.ns.cloudflare.com, woz.ns.cloudflare.com, abby.ns.cloudflare.com, dan.ns.cloudflare.com, jeff.ns.cloudflare.com and ned.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 shares the same mail server setup as other domains, including mason-rose.ca, post.leadhit.ru, z.teachablemail.com, philadelphiavotes.com and greyfell.net.
substack.com shares some mail servers with other domains, including lokobuzz.com, myoneoffer.com, ihtspirit.com, sitetor.com and ketengo.com.
these mail servers are commonly used with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
Host names with one IP number:
mxa.mailgun.org points to: 34.160.157.95.
mxb.mailgun.org points to: 34.160.63.108.