Payment QR
The address is checked before the code is drawn. The QR is generated in this browser; no QR service sees the address.
The QR code appears here once the address passes the check.
A valid format does not mean the address belongs to the right person. It only means the address is well-formed. Compare the whole address with the source and send a small test amount first.
FAQ
What is a BIP-21 payment link?
A link like bitcoin:ADDRESS?amount=0.001&label=… that wallets read to fill in the address and amount. BIP-21 defines it for Bitcoin; Litecoin, Dogecoin and Bitcoin Cash wallets use the same form.
Is the address sent to a QR service?
No. The QR code is computed in the browser, and this page cannot make network requests.