Test website performance with Siege


by Danila Vershinin, February 5, 2017

Test real website performance using Siege open source tool

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Varnish “Backend fetch failed”


by Danila Vershinin, January 20, 2017

Troubleshoot Varnish backend fetch failed 503 error

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Deployment and cache purge on Citrus powered servers


by Danila Vershinin, January 18, 2017

Clear Varnish and PHP opcode cache in your deployment script.

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Magento 2 Redis Configuration


by Danila Vershinin, December 23, 2016

Easily configure Redis cache for session storage and general cache storage with Magento 2

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Strip query parameters with Varnish


by Danila Vershinin, November 12, 2016

Strip unnecessary query parameters with some Varnish VCL magick!

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VCL coding style


by Danila Vershinin, October 14, 2016

Indentation: 4 spaces. Function opening bracket on the same line with definition: sub vcl_miss { return (fetch); } Single lines of VCL can be commented out using // or #. Multi-line blocks can be commented out with /* block /*.

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Install nginx with ngx_pagespeed dynamic module on CentOS 7


by Danila Vershinin, October 3, 2016

Easily install latest stable nginx with ngx_pagespeed dynamic module

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Clear disk space on CentOS 6 or CentOS 7


by Danila Vershinin, September 22, 2016

Here is how to quickly regain disk space in CentOS / RedHat 6 / 7 servers

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Zend Opcache


by Danila Vershinin,

PHP is fast. But not when you use CMS with hundreds of small PHP files. WordPress, Magento, Joomla are all great examples of popular CMS solutions, but you can find their performance extremely slow. This is due to the fact, that PHP is interpreted language. Each time a website page is requested, all those files […]

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Mysqldump hangs website? [Solved]


by Danila Vershinin,

Here is how to run mysqldump properly, without affecting the live website and no slowdown during your database backup

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