As SEO was getting more and more into our technological lives, we had to adapt. So we started to build tools that means we could edit certain areas of code on websites, without physically opening each page. A kind of ‘bulk too’, meaning you can view lots of information on lots of pages, at a glance – and change them. Meta Tags for example.
Yoast SEO does this now with superb ease. We built exactly this kind of tool in 2016.