github.com

GitHub is the premier platform for developers and startups to host public repositories, collaborate on code, and build their online presence in the tech community. It's particularly suited for startup founders with software products, open-source tools, or tech projects, allowing them to create profiles and repos that attract developers, contributors, and potential users.

For SEO value, GitHub offers mostly nofollow backlinks, but a key exception exists: the website field in public repo settings provides a dofollow link visible in the mobile version. Since Google uses mobile-first indexing, this link is likely crawled and may pass SEO value, boosting domain authority from GitHub's impressive Domain Rating of 96 (noted in SEO resources, though directory lists it at 30). It also drives referral traffic from its massive developer audience and enhances credibility through association with high-quality tech projects.

Tips for listing: Create a public repo for your startup product, then edit repo settings (cogwheel icon) to add your website URL in the designated field—test visibility on mobile. Pin key repos to your profile, add a compelling README with your product link, and maintain active contributions for better visibility. Focus on open-source or demo repos to align with community norms and maximize exposure.