=== HTTP code : 200 ===

Response headers
================
HTTP/2 200 
server: openresty
date: Thu, 08 Sep 2022 08:54:57 GMT
content-type: text/html; charset=UTF-8
set-cookie: parking_session=ff76e24c-7f16-fd95-ec9e-f4ec40406567; expires=Thu, 08-Sep-2022 09:09:57 GMT; Max-Age=900; path=/; HttpOnly
x-adblock-key: MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBANDrp2lz7AOmADaN8tA50LsWcjLFyQFcb/P2Txc58oYOeILb3vBw7J6f4pamkAQVSQuqYsKx3YzdUHCvbVZvFUsCAwEAAQ==_LMz2M/iOeoeOZrRwlhIBmys7572BZZcPGHEeIa31+Pct5sgK/fbGDrYVJGXfILzqwAF06oct507iUcSwNmHJxw==
cache-control: no-cache
expires: Thu, 01 Jan 1970 00:00:01 GMT
cache-control: no-store, must-revalidate
cache-control: post-check=0, pre-check=0
pragma: no-cache

Request headers
================
HEAD /wp-content/uploads/2018/09/Gas_Safe_Register.svg_-910x1024.png HTTP/2
Host: gas-engineer-manchester.co.uk
user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36
accept: */*
referer: https://boiler-installer-boiler-repair.com
connection: close


Link is valid.