Editorial
Substack Custom Domain
DNS setup for branded Substack sends.
SiteBartar Research · Updated June 2026
Direct answer
Custom domain on paid/eligible settings — verify current Substack docs.
DNS: web records + email SPF/DKIM/DMARC alignment.
Subdomain newsletter.yourdomain.com common pattern.
Export/branding still Substack-hosted infrastructure.
Why this question matters
Creators skip DNS → spam folder issues.
leave-substack-with-subscribers easier if you own domain from day one.
email-deliverability-creators hub.
Rebrand without losing domain asset.
Get your personalized match
Answer a few questions — get a personalized match with reasons.
Take the Find Your Newsletter Platform quiz (~2 min)What changes the answer
Registrar choice (Cloudflare, Namecheap) affects DNS UX.
Root vs www redirect configuration.
Multiple publications one domain — policy check.
Migration off Substack keeps domain you control.
Compare your options
Beehiiv custom domain parallel setup.
Ghost roll-your-own DNS full control.
Kit landing custom domain.
best-newsletter-platform if DNS pain reason to switch.
Related questions
substack-custom-domain docs on support.substack.com.
Verify records with mail-tester.
48h propagation normal.
editorial-standards.
Tools mentioned
Get your personalized match
Answer a few questions — get a personalized match with reasons.
Take the Find Your Newsletter Platform quiz (~2 min)Frequently asked questions
Substack custom domain?
Supported — DNS steps in help center; improves brand and deliverability.
Free custom domain?
Verify if included on free vs paid publication settings.
Email domain match?
Authenticate sending domain — deliverability hub.
Transfer domain later?
You keep registrar; update DNS at new ESP.
WWW vs root?
Follow Substack DNS template.
Help setup?
Registrar DNS + Substack verification wizard.
Sources
Disclosure: SiteBartar may earn commissions when you click partner links. Affiliate relationships never change match order or editorial scores. Full affiliate disclosure