Every account gets a free address like yourname.portfolio-os.online. You can change it (once a day; the old address keeps redirecting) and connect a domain you own.

Yes. Add the domain in your dashboard, create the DNS records we show you, and we verify ownership and HTTPS before it goes live. Your free address then redirects to your domain.

Only what you publish. Every entry has its own visibility, contact details are hidden unless you switch them on, and drafts, documents and requests are private by default.

That a document with a given ID was issued through Portfolio OS, its current status (valid, revoked, expired, superseded), and whether a PDF is byte-for-byte identical to the issued file. It does not certify that an employer or institution endorsed the claims in it.

Signatures are captured with explicit consent and bound to the exact document version, which supports many electronic-signature frameworks. Legal effect varies by country and document type; for regulated documents use a qualified e-signature provider.

If you enable it, visitors can submit a request from your portfolio. You choose whether to accept, decline or ask for more information, and nothing is issued or published without your action.

Yes. Download a complete JSON export at any time, and request account deletion from your settings.

No. A small “Built with Portfolio OS” link appears in the footer.