When a website is remodeled, are the URLs of the posts and pages kept? Is the positioning maintained?

When renovating a website, it would be one of the most significant considerations. You must save the previous URL structure and try to retain the same URL and content structures while establishing the new website. If the web has changed significantly and we have lost that original structure or are unable to retain it for whatever reason, we must use 301 redirects to redirect the old URLs to the new URLs. This way, we don’t lose the placement, and you maintain the exact same settings as before.