Show HN: CrawlerCheck – A tool to check if a site is blocking crawlers

I'm a long-time developer and SEO consultant. Over the years, I've seen clients suffer from a simple, costly mistake: accidentally blocking Googlebot or other important crawlers with a misplaced rule in robots.txt or a noindex tag.

Manually checking the robots.txt file, then the page's meta tags, then the X-Robots-Tag HTTP header is a tedious process. I wanted a tool that would do it all in one shot and give me a clear answer.

So, I built CrawlerCheck. You give it a URL, and it checks all three sources of crawler directives to tell you if a page is accessible.

The backend is written in Go, and the frontend is a lightweight Svelte app. The goal was to make it as fast and reliable as possible.

It's a brand new project, and I'd love to get some honest feedback from the HN community. Thanks for taking a look.