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cdnjs is a free distributed JS library delivery service.

Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.

HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.

LottieFiles is an open-source animation file format that's tiny, high quality, interactive, and can be manipulated at runtime.

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.

Unpkg is a content delivery network for everything on npm.

YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.