What are some alternatives?
When comparing Open Site Explorer and SEMRush, 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.
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!
Screaming Frog - Screaming Frog is search engine marketing agency offering search engine optimisation and pay-per-click advertising services.
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
Marketing 360 - Marketing 360® is a powerful marketing and website platform built for any size brand. It's fully managed and has everything a brand needs to drive beautiful marketing and sales.
MetaTagTool.com - Meta Tag & Open Graph Tag Generator, Simulator, & Analyzer