Last week I was checking the backlinks for our site and realized we increased our domain authority by 10 points. It was weird since we weren't doing that much work on SEO.
We took an amazing surprise when we found out that Hubspot (a huge Marketing/CRM tool) featured us as one of "The Best A/B Testing Plugins For WordPress" in their official blog.
We didn't reach out to anyone. A few weeks ago someone with the mail @hubspot.com signed up, and we assume they tried it out and like it.