Sometimes, you don't need a traditional website to get your message across. Adobe Spark Page is ideal for projects that don't require more than one page, such as portfolios, resumes, presentations, blog posts and photo galleries. For businesses, a Spark Page can showcase a product catalog, advertise a special offer, or act as a weekly or monthly newsletter.
Web.com also has enormous security problems. I try every website builder with my own credit card (to test billing practices) and in order to cancel my Web.com account I had to tell customer service my password over the phone. It's hard to overstate how huge of a security problem this is. It makes you incredibly vulnerable (remember: these agents can also see your email address!).
Strikingly has its focus on one-page layouts. This can be especially interesting if you want to create a landing page, say for event registrations. Their responsive designs are indeed striking (no pun intended) and look great on mobile devices. You can either start with their ad-sponsored free plan or upgrade to the Limited ($8) or Pro plan ($16 per month). Limited also includes a 5-product online store, whereas PRO increases this limit to 300 products.