What are some alternatives?
When comparing Previewmojo and Elbo, you can also consider the following products
Peeklink - Customized Link Previews for 🔥 Posts
Bitly - Get the most out of your social and online marketing efforts. Own, understand and activate your best audience through the power of the link with Bitly Enterprise.
Pretty Links - The easy way to customize Facebook link previews
YOURLS - YOURLS is a website that contains all the tools you need to create and launch your very own URL shortener. URL shorteners like bitly or TinyURL are fine for public use, but they offer limited options in terms of URL customization.
GlimpseLink - Customize your link previews for social media
Polr - An open source URL shortener. A great non-profit and free alternative to bit.ly, TinyURL, or goo.gl.