=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Server: CloudFront
Date: Sun, 28 Nov 2021 15:17:12 GMT
Content-Type: text/html
Content-Length: 183
Connection: close
Location: https://www.lifehacker.jp/2010/05/100507dropboxtips.html
X-Cache: Redirect from cloudfront
Via: 1.1 c2d4dc2b9e3d88768037bd0f77e3d802.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: NRT51-C1
X-Amz-Cf-Id: iAUo_iOcfeUE5ORh3jx-Zh77MsvS8GtzDAVRBuTn1xV7l8SBU8Kg6g==

HTTP/1.1 200 OK
Content-Type: text/html; charset=UTF-8
Connection: close
Cache-Control: max-age=120
Date: Sun, 28 Nov 2021 15:17:12 GMT
Server: nginx
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
Vary: Accept-Encoding
X-Cache: Miss from cloudfront
Via: 1.1 2bbc1f6dd26fc38478c686763c4fd1c9.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: NRT57-P2
X-Amz-Cf-Id: H0tl30ySll1Iu_P8kyUrnGKow6BPQjGr3Jp8u2Nti7-w-aYiSGw44w==

Request headers
================
HEAD /2010/05/100507dropboxtips.html HTTP/1.1
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: www.lifehacker.jp
Accept: */*
Referer: http://web-marketing.zako.org
Connection: close


Link is valid.