¿Cuál es la diferencia entre los redireccionamientos 301 y 302?

A 301 redirect signals to search engines and browsers that a page has permanently moved to a new URL. This is crucial for SEO, as it passes most of the original page's link equity (ranking power) to the new destination. A 302 redirect, conversely, indicates a temporary move. Search engines understand that the original page will likely return, so they typically do not transfer link equity. Using a 302 for a permanent move can negatively impact SEO by preventing the new page from accumulating authority. The other options incorrectly describe the permanent/temporary nature or introduce non-standard "block redirects.