What is the difference between 当{とう} and この?


I am making a website and needed inspiration for a "404 not found" page in
Japanese. Going to a non-existent page on Amazon.co.jp (ex:
[amazon.co.jp/aaaaaaa](https://www.amazon.co.jp/aaaaa)) gives this message:

> 何{なに}かお探{さが}しですか？
>
> 入力{にゅうりょく}したURLが当{とう}サイトのページと一致{いっち}しません

When I translated it to English with Google translate, it meant:

> Are you looking for something? The URL you entered does not match the page
> on this site

I then clicked the `⇄` to translate the English I just received back to
Japanese, and I saw that **当サイト** got replaced with **このサイト**.

I know they both mean " _this website_ " but **what is the difference between
using _当{とう}_ and using _この_?**




My understanding is that

当= this (business organisation or place)

この =this (something or someone close to the speaker (including the speaker),
or ideas expressed by the speaker)

Hope that helps

