Branding and custom domains
Users trust a login page that looks like the product they came from. LumoAuth lets you brand the hosted pages with your logo, colours, layout and CSS, serve them on auth.yourcompany.com, and send verification and reset emails from your own domain and templates.
A third-party login page on a third-party domain costs conversions
Users hesitate when the sign-in page looks nothing like the product. Enterprise buyers ask why the URL is someone else's.
How LumoAuth solves it
Branding settings
Logo, colours, background, layout (centred, split, card), dark or light, and a footer badge you can remove. Docs
AI theme generator
Paste your website URL. The AI reads your colours and typography and drafts a matching theme you can adjust. Docs
Custom CSS and layout
Stable CSS hooks on every element, an allow-listed stylesheet, and a custom HTML layout with safe slots for the platform-rendered parts. Docs
Custom domains
Add auth.yourcompany.com, verify DNS, and TLS is issued automatically. Per organization if you need it. Docs
Email templates and providers
Edit every email, preview it, and send through Amazon SES, SendGrid, Mailgun, Resend, Postmark or SMTP. Docs
Per-application branding
Different products, different looks, one organization. Docs
Setting it up
Upload a logo and pick colours
Or paste your URL for a generated draft.
Add your domain
One CNAME record. TLS follows.
Connect your email provider
Set the from address and edit the templates.
Standards involved
Plain names on the left, the specification on the right. The full map is in the standards reference.
- TLS
- Automatic certificate issuance
- Content security
- Sanitised CSS and HTML, CSP on every page
Which plan you need
Basic branding is on every plan. Custom domain, badge removal, custom CSS and HTML, the AI theme generator and custom email templates start on Pro (one domain; three on Business; more at $20/month each).
Documentation
Questions
Can I embed the login form instead?
Ship passwordless sign-in this week. Put guardrails on your agents today.
The Developer plan is free for 10,000 monthly users and ten agents, with no card. Everything speaks open standards, so moving in or out is a config change.