Custom Domains is a 📝MythOS feature that lets creators serve their entire knowledge library under their own domain. Instead of mythos.one/me/username, your memos, feed, knowledge graph, and AI-readable endpoints live at yourdomain.com — fully branded, fully yours. Available on the 📝Oracle plan.
Why Custom Domains
Your knowledge deserves its own address. Custom domains give you three things that platform-hosted URLs never can.
Your domain, your authority. Every memo you publish builds 🏷️#seo equity on your domain, not ours. Backlinks from readers, citations from AI agents, and Google indexing all compound under your brand. If your domain already has history and authority, your MythOS content inherits it immediately.
AI agents recognize you. Answer engines and AI crawlers increasingly weight domain reputation as a trust signal. Content on your established domain carries more authority in RAG pipelines and AI-generated answers than content on a shared platform. Your custom domain includes a dedicated llm.txt manifest so AI agents can discover and index your entire library — structured for machines, written for humans.
Zero-config publishing. No static site generators. No build steps. No hosting to manage. Connect a domain and your library is live — with sitemaps, canonical URLs, structured data, and SSL handled automatically.
How It Works
- Go to Settings → Publishing → Domains
- Enter your domain (e.g.,
brain.example.comoryourdomain.com) - Add a CNAME record at your DNS provider pointing to the target shown in settings
- Click Verify DNS — once confirmed, your domain is live with SSL provisioned automatically
That's it. Your library homepage loads at the root of your domain, and every public memo is accessible at its slug path.
What Gets Served
Your custom domain is a complete web presence, not a redirect. Everything is generated automatically from your library:
- Homepage (
/) — your memo feed, same content as your MythOS profile - Memo pages (
/slug) — every public memo with a custom slug is directly accessible - Sitemap (
/sitemap.xml) — auto-generated, scoped to your public memos, submitted to search engines - Robots.txt (
/robots.txt) — configured for search engines and AI crawlers, with explicit permissions for GPTBot, ClaudeBot, PerplexityBot, and others - LLM manifest (
/llm.txt) — structured index of your library for AI agents, including topics, recent memos, and direct links. Full content dump available at/llms-full.txt - SEO metadata — canonical URLs, OpenGraph tags, Twitter cards, and JSON-LD structured data (WebSite + Person schemas) all reference your custom domain
Canonical URL Ownership
When you activate a custom domain, MythOS treats it as the authoritative source for your content. This means:
- Canonical URLs on your memo pages (even when accessed via
mythos.one) point to your custom domain - Search engines consolidate indexing signals under your domain, not ours
- Structured data identifies your domain as the primary web presence
This is the same approach Ghost and other creator-first platforms use — your SEO equity belongs to you.
Multiple Domains
You can connect up to five domains. One is marked as primary — this is the domain used for canonical URLs and search engine indexing. Additional domains serve content identically but defer to the primary for SEO consolidation.
DNS Configuration
Most domain providers support this in under a minute:
Some providers don't allow CNAME on the root domain (@). In that case, use a subdomain (e.g., library.yourdomain.com) or check if your provider supports CNAME flattening — 📝Cloudflare does this automatically.
DNS propagation typically takes minutes, though it can take up to 48 hours. Click Verify DNS at any time to check status.
Plan Requirements
Custom domains are available on the Oracle plan ($100/mo). If you downgrade, your custom domains are suspended — not deleted. Upgrade again and they reactivate without reconfiguration.