How to check if all of my backlinks are still present with minimum manual effort

You can use Google Search Console to check your backlinks. Just install it and open the Google Search Console and scroll down to the menu and select 'Links'. It will give you a breakdown of all the top external links directing to your website.

By clicking on 'More', you will get a breakdown of all the backlinks. It breaks it down by site, the number of linking pages from each website, and the number of pages that website is linking to you from.

You can change the rows per page to 500 if you have got a bigger list. You can also export the data into a spreadsheet.

Something to remember is that Google Search Console is not instant when it comes to your backlink profile, so if you have built backlinks recently, chances are that they may not yet show up in the console. It doesn't mean that the link is bad or not working properly. It simply means that Google has not yet crawled those new links.

To set up a specific website in Google Search Console, click 'add property', and add the website name.

This will generate a code to be added to your website. You can then install this google generated code to the DNS service on your website.