=== HTTP code : 200 ===

Response headers
================
HTTP/2 301 
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server: openresty
location: /learn/ethereum-101/ethereum-smart-contracts-work/
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expires: Sat, 20 May 2023 20:13:20 GMT
date: Sat, 20 May 2023 20:12:20 GMT
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HTTP/2 308 
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server: openresty
location: https://www.coindesk.com/learn/how-do-ethereum-smart-contracts-work/
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HTTP/2 200 
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Request headers
================
HEAD /learn/how-do-ethereum-smart-contracts-work/ HTTP/2
Host: www.coindesk.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.