Hi! With what script i can add meta keywords and description to each wordpress blog post? I don't want to use any plugin for that. Both figures should stay between <meta http-equiv="X-UA-Compatible" content="IE=edge"> description keywords <meta name="viewport" content="width=device-width, minimum-scale=1.0, maximum-scale=1.0"> Thanks!
It's annoying, but doable. You will have to create custom fields for each post, and call their values in header.php, or you can also create a function to automatically use content/excerpt for meta description, and category/tag for meta keyword. Although I'd highly recommend YOAST SEO. Also take a look at https://codex.wordpress.org/Meta_Tags_in_WordPress