fix: certain sites do not pass URL validation > not fix

[shseok]

Certain URLs cause a 422 error in axios.get(url).

1. Security and permissions
   Certain websites may have security policies or permission controls. Login or permission may be required to access the URL.
2. Specific User-Agent Requirement
   Some websites may require a specific User-Agent.
3. Website Crawling Policy
   Web crawling may be prohibited depending on robot.txt or the website's crawling policy.

For the above reasons, rather than handling validation failure on the server, we introduced an alternative that prompts the client to input a different URL if validation fails once.

ex) url : https://www.similarweb.com/