What are the user-agent for Cloudflare?
Question： What are the user-agent for Cloudflare? Cloudflare does not have our own User-Agent except for our ‘Always Online’ crawler. We forward to visitors User-Agent through our proxy. The …
How to Check Server Response Time using cURL command line?
Open any linux command line shell, and type in the following and hit return (remember to substitute the domain URL). curl -o /dev/null -s -w %{time_total}\\n http://helloacm.com Example response: …
How to Static Link VC Runtime in Visual C++?
C Runtime Library (CRT) for native code is redistributed in DLL such as msvcrversion.dll. This is required for all application compiled under Microsoft Visual Studio. Typically, you do not …
Some Thoughts on VPS v.s. Dedicated Server
In last conversion with QuickHostUK, we talked about moving to dedicated server if the site is having a large traffic. The VPS network bandwidth is shared and the Dedicated …
Mod_PageSpeed Reports Slow Write Operation on File
I have noticed quite often the following in the apache2 log and expressed my concern to Quickhostuk. Slow write operation on file /var/cache/mod_pagespeed/v2/... ...: 67.025ms; configure SlowFileLatencyUs to change …
CloudFlare Full Strict HTTPS and Flexible – Is it a Must to use Full SSL when a Valid certificate is present?
Question: About 525 SSL handshake failed, my two domains have valid SSL certificates, so can I just ignore them and using the CloudFlare Flexible SSL insteal of Full SSL? …