9 Things to do after migrating the website from HTTP to the HTTPS (By PromozSEO, SEO training program https://www.promozseo.com/online-courses/seo-training-in-india/)
Redirect the domain from HTTP to HTTPS using permanent 301 redirection
Redirect all of the site URLs from HTTP to HTTPS using permanent 301 redirection
Update the Sitemap file
Update the internal URLs, resource links, and Canonical tags. Point those to their respective HTTPS URL version
Update the Robots.txt file, and point the sitemap file path to the HTTPS version
Re-add your website's new HTTPS web property to the Google Search Console and Google Analytics tool
Upload the Disavow file (if any) to the newly added HTTPS web property of the website's Google Search Console account
Update the backlinks and social links where it is possible and point those to their respective HTTPS version
Update the tools where you mentioned the website or webpages. Point those to the respective HTTPS version of URLs