The SBXHRL is known as structured data. Before knowing about SBXHRL, firstly, you need to know about SEO.
https://www.techsngadget.com/sbxhrl-tool/
Our community is FREE to join. To participate you must either login or register for an account.
Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. View our Privacy Policy.
Astronomy Magazine