HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
MailerLite is an email marketing tool and website builder for businesses of all shapes and sizes.
Open Graph is a protocol that is used to integrate any web page into the social graph.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.
Shopify is a subscription-based software that allows anyone to set up an online store and sell their products. Shopify store owners can also sell in physical locations using Shopify POS, a point-of-sale app and accompanying hardware.