=== HTTP code : 200 ===

Response headers
================
HTTP/2 200 
content-type: text/html; charset=utf-8
content-length: 99311
date: Sat, 10 May 2025 02:02:24 GMT
accept-ranges: bytes
cache-control: max-age=300, public, no-transform
content-security-policy: frame-ancestors motionpoint.com;
last-modified: Wed, 07 May 2025 15:02:23 GMT
strict-transport-security: max-age=31536000
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x-xss-protection: 1; mode=block
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etag: &quot;681b75ff-183ef&quot;
vary: Accept-Encoding,Accept-Encoding
x-cache: Hit from cloudfront
via: 1.1 e5f49cd65618fc548cd417b060a75e76.cloudfront.net (CloudFront)
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age: 271

Request headers
================
HEAD / HTTP/2
Host: www.airnow.gov
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://greenmanual.rutgers.edu
connection: close


Link is valid.