Curated list of useful publically available tools for web hosting and development.
- Google Lighthouse - test performance, quality, and correctness
- Broken links checker
- Test SMTP mail server
- Mailinator - Dummy email addresses for testing signups
- BuiltWith - Wich tech stack is used by a site
- Google Page Speed Insights performance testing
- Google Mobile Website Speed Testing Tool
- Test web site performance from many locations in the world
- YSlow
- SSLLabs Test SSL server configuration
- Generate SSL CAA record
- Webbkoll web data-protecting measures analytzer
- instant.page improve performance by prefetching pages on hover