Passion Brains

The top 100 bitcoin addresses ( people ) control 17.3 % of all the issued currency.

You need a robots.txt file only if your site includes content that you don't want search engines to index. If you want search engines to index everything in your site, you don't need a robots.txt file — not even an empty one. If you don't have a robots.txt file, your server will return a 404 when Googlebot requests it, and we will continue to crawl your site. No problem.”