Google Tag Manager is Google's free tag management system that deploys analytics, marketing, and third-party code through visual triggers, variables, and templates, so all pixels can be managed without editing site source code.
STAT Search Analytics is an enterprise SEO rank tracking and AI brand visibility platform under Moz (a Ziff Davis company), shipping 100+ parser changes each year for data accuracy, and a professional choice for agencies and big brands tracking rankings at scale.
Prefinery is a US-based pre-launch landing page and beta registration tool that helps startups build teaser pages, collect seed user emails and control beta rollout with invite codes before launch, with a free plan to start the first project.