SEO-анализ сайта и рекомендации

Here is the assessment of the HTML code from the perspective of SEO parameters of the website labirin.ru:

1. **Cache control**: The `cache-control: no-cache, must-revalidate` meta tag is used to prevent caching of the webpage and ensure that the browser reloads the page from the server.

2. **Pragma**: The `pragma: no-cache` meta tag is used to prevent caching of the webpage and ensure that the browser reload the page from the server.

3. **Refresh**: The `refresh: 0; URL=http://prochest.ru` meta tag is used to set the refresh period of the webpage.

By setting these meta tags, you can control the caching of the webpage and ensure that the browser reload the page from the server.

This HTML code is optimized for search engine optimization (SEO) and provides a better user experience.