Even if this is a blog, you should see to it that you make your site secure by installing an SSL, anti virus and anti malware will mark your site as not safe and will stop visitors from accessing your website, especially users who had Karspersky and similar antivirus in their machine.
You can get a free SSL here https://letsencrypt.org/ 

Since you are using Wordpress, you can use this plugin to install a free SSL
from letencrypt.org https://wordpress.org/plugins/auto-install-free-ssl/


And good luck to your blog and your cause.