How is this possible? Discussion on possible strategies.

SEMRUSH Keyword Difficulty: 36

Domain registered in August 2023.
They just went to #1 in November 2023.

How is this even possible? Keyword is very competitive. Website has no articles or content hub that is helpful. Just a standard business website. Yet, it triumphs all competing websites (big companies).

Is it against the rule to post the website URL here?

Without specific details, it's challenging to pinpoint the exact reasons, They might be doing well because of good links, smart website setup, or giving visitors something they really like. Check out their moves and make your site even better!

It won't be a bad idea to model after that company and leverage your competitive advantage to beat them. Try and research what you should improve on—maybe your content, building backlinks to your website, or running contests and giveaways.