For what it is worth, your site has been blocked by the UK's national cyber security centre on my current connection:
This site may be associated with malicious activity or malware.
Access to this site has been blocked by the Protective DNS Service
Site: wtf.korridzy.com
Please contact your local Network Administrator or IT support if you require further assistance
Look up this site on Cloudflare Radar [1] for more information.
I would wear this as a badge of pride![1] https://radar.cloudflare.com/domains/domain/wtf.korridzy.com
I can see 7 visitors from the UK in the last 30 minutes. It looks like no restrictions.
It is blocked by Cloudflare, and it looks like the reason is simply that it's a super new domain so it's just an overly cautious thing.
It looks like its blocked by Cloudflare Radar.
I do not think the NCSC blocks sites. I have never come across a site block ordered by them. Most blocks I see are by sites themselves blocking Uk visitors for GDPR or OSA reasons.