=== HTTP code : 200 ===

Response headers
================
HTTP/2 200 
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content-length: 1545
date: Fri, 23 Jun 2023 17:30:17 GMT
x-powered-by: Express
etag: &quot;6a8a89c86cc453db698c8b50de202518&quot;
last-modified: Thu, 19 May 2022 15:29:24 GMT
strict-transport-security: max-age=604800
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Request headers
================
HEAD /image/twitter_name/w_36/DrEricDing.jpg HTTP/2
Host: cdn.substack.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.5112.34 Safari/537.36
Accept: */*
Referer: https://cryptogrizz.com
Connection: close


Link is valid.