ERR_BLOCKED_BY_CLIENT means your browser blocked a webpage or resource, often...

https://oscar-wiki.win/index.php/Why_Is_a_Random-Looking_Domain_Like_yfdnzfa.com_Getting_Blocked%3F

ERR_BLOCKED_BY_CLIENT means your browser blocked a webpage or resource, often because of an extension like an ad blocker. To fix it quickly, try opening the page in private mode. If it works, check your extensions and whitelist the site if it’s safe