Improve SEO of developers.kodadot.xyz

- [x] **Submit your site to Google**: Do this via Google's Search Console. This informs Google your site exists and requests it to crawl your site.
- [x] **Check your `robots.txt` file and `meta` tags**: Ensure they're not inadvertently blocking Google from indexing your site or any of its important pages.
- [x] **Improve your SEO**: This might include using relevant keywords in your content, optimizing your meta descriptions and alt tags, using semantic HTML, etc.
- [x] **Improve your website's speed and mobile optimization**: Use tools and strategies to achieve this, from optimizing images to minimizing CSS and JavaScript.

The issue names no files, tests, or entry points to inspect, and all listed SEO tasks are already checked. Start by reviewing the developers.kodadot.xyz site and its current crawlability, metadata, semantic HTML, speed, and mobile behavior; done would require a specific, measurable SEO improvement, but this issue does not define one.

Written by the indexing model from the issue text.