Yes, you can use Really Simple SSL for multisite. When you activate Really Simple SSL on a multisite environment, you can choose to network activate, or to activate per-site. When you network activate, you get the same option again (might be confusing) but even on network activation, you can choose to enable SSL per site. …
If you cannot access your website, but do not have redirect loop errors, your SSL certificate might be invalid. Normally Really Simple SSL checks if ssl is available, and only proceeds if the test is successfull. If you forced ssl anyway, or blocked access to the plugin folder in an unexpected way, you could accidentally …
If you do not see the green lock in your browser address bar, you still have mixed content. It is very important that this is fixed, because browsers will throw all sorts of warnings at users, who might get scared. What is mixed content? Your website consists of HTML, images, javascript and CSS files. When …
Your site can run on ssl without any issues. The plugin also adds some javascript to redirect any non https pages, so your site should load over https without any problems. Furthermore, you can enable the HSTS setting to improve security. Common causes: 1. The .htaccess is not writable, or not available. 2. Testing of …