Such a solution, I think, will satisfy your needs.
curl www.yoururl.com > /path/to/yourfolder/file.html
See below stories if you are interested.
Story
A few months ago I was working on the yii2 project. The index page loaded after 3 seconds due to a response from external services. Cloudflare and other caching scripts did not succeed - I came up with a maximum of 2.5 seconds.
2-3 :)
, index.html ( yii2 web) 2 .
- (< 0,2s), .
, ,
curl www.example.com > /path/to/web/index.html