What are some alternatives?
When comparing Open Site Explorer and Moz, you can also consider the following products
Majestic - Majestic - Link intelligence tools for SEO and Internet PR and Marketing. Site Explorer shows inbound link and site summary data.
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
Screaming Frog - Screaming Frog is search engine marketing agency offering search engine optimisation and pay-per-click advertising services.
Ahrefs - Ahrefs is a toolset for SEO and marketing. We have tools for backlink research, organic traffic research, keyword research, content marketing & more. Give Ahrefs a try!
OpenGraphTool.com - Open Graph Checker Tool
MetaTagTool.com - Meta Tag & Open Graph Tag Generator, Simulator, & Analyzer