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Performance Analysis

Dave Hilditch
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Dave Hilditch
Founder at WP Intense
Author of the WPI performance guides and creator and coder of the plugins sold by WP Intense.
Dave Hilditch
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Latest posts by Dave Hilditch (see all)
You can chat to all our authors on our Discord

Figuring out slow PHP performance caused by loops using Xdebug

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Figuring out slow PHP performance caused by loops using Xdebug
Dave Hilditch
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Dave Hilditch
Founder at WP Intense
Author of the WPI performance guides and creator and coder of the plugins sold by WP Intense.
Dave Hilditch
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Latest posts by Dave Hilditch (see all)
You can chat to all our authors on our Discord

I use Xdebug regularly to help clients figure out why their PHP processes are consuming all the CPU. If you haven’t tried it yet, I have an old article covering how to install and configure Xdebug. In the example below, the object cache is in use, and you can see from the Query Monitor plugin […]

Dave Hilditch
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Dave Hilditch
Founder at WP Intense
Author of the WPI performance guides and creator and coder of the plugins sold by WP Intense.
Dave Hilditch
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Latest posts by Dave Hilditch (see all)
You can chat to all our authors on our Discord

Why the WooCommerce Products On Sale shortcode sucks (including a free plugin to fix it)

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WooCommerce Monster
Dave Hilditch
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Dave Hilditch
Founder at WP Intense
Author of the WPI performance guides and creator and coder of the plugins sold by WP Intense.
Dave Hilditch
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Latest posts by Dave Hilditch (see all)
You can chat to all our authors on our Discord

UPDATE: It’s been a long time since I wrote this Products on Sale shortcode plugin – since then I’ve integrated way better functionality into my Faster Woo Widgets plugin so you can have /sale/dog-toys/black/ as your permalinks and have your products-on-sale filterable, paginated and optionally indexable by google. If you get Faster Woo Widgets, please […]

Dave Hilditch
Talk to me
Dave Hilditch
Founder at WP Intense
Author of the WPI performance guides and creator and coder of the plugins sold by WP Intense.
Dave Hilditch
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Latest posts by Dave Hilditch (see all)
You can chat to all our authors on our Discord

How to Identify and Fix Scalability Issues on your WordPress Website

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wpiblog
Dave Hilditch
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Dave Hilditch
Founder at WP Intense
Author of the WPI performance guides and creator and coder of the plugins sold by WP Intense.
Dave Hilditch
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Latest posts by Dave Hilditch (see all)
You can chat to all our authors on our Discord

Over the 2 years of running WP Intense, I’ve had many questions from clients asking to review the performance of their website. In this article I’ll cover the most common issues and the easiest solutions to solve your performance and scalability. Uncached versus Cached Performance and TTFB Firstly, it’s important to understand why uncached performance […]

Dave Hilditch
Talk to me
Dave Hilditch
Founder at WP Intense
Author of the WPI performance guides and creator and coder of the plugins sold by WP Intense.
Dave Hilditch
Talk to me
Latest posts by Dave Hilditch (see all)
You can chat to all our authors on our Discord

Speeding up WordPress imports with Datafeedr or WP All Import

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API - WPAllimport -Datafeedr - png
Dave Hilditch
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Dave Hilditch
Founder at WP Intense
Author of the WPI performance guides and creator and coder of the plugins sold by WP Intense.
Dave Hilditch
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Latest posts by Dave Hilditch (see all)
You can chat to all our authors on our Discord

Some of you may be aware of my External WordPress Images plugin – it basically lets you avoid storing images in WordPress and instead the images are fetched from a remote location. This speeds up imports massively. But what if you are importing images and still want faster imports? Debugging WordPress Import Performance Firstly, I […]

Dave Hilditch
Talk to me
Dave Hilditch
Founder at WP Intense
Author of the WPI performance guides and creator and coder of the plugins sold by WP Intense.
Dave Hilditch
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Latest posts by Dave Hilditch (see all)
You can chat to all our authors on our Discord

Optimising Datafeedr Bulk Image Import

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faster-datafeedr-product-sets
Dave Hilditch
Talk to me
Dave Hilditch
Founder at WP Intense
Author of the WPI performance guides and creator and coder of the plugins sold by WP Intense.
Dave Hilditch
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Latest posts by Dave Hilditch (see all)
You can chat to all our authors on our Discord

I’d covered this a while ago, back on the AWD site, but it’s worth covering again. When Datafeedr Product Sets load products into your website, they don’t load images at that point in time. Instead, images are downloaded on-the-fly which means users will see slow performance if they are the first to view this particular […]

Dave Hilditch
Talk to me
Dave Hilditch
Founder at WP Intense
Author of the WPI performance guides and creator and coder of the plugins sold by WP Intense.
Dave Hilditch
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Latest posts by Dave Hilditch (see all)
You can chat to all our authors on our Discord

Optimising front-end WordPress Performance

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wordpress performance 1
Dave Hilditch
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Dave Hilditch
Founder at WP Intense
Author of the WPI performance guides and creator and coder of the plugins sold by WP Intense.
Dave Hilditch
Talk to me
Latest posts by Dave Hilditch (see all)
You can chat to all our authors on our Discord

If you’ve used tools like Pingdom, Google Page Speed Insights or GT Metrix, you’ll have seen that they can help figure out why ‘front-end’ performance of your site is slow. Front-end performance includes all the stuff that happens on the users browser. It doesn’t include things like PHP execution time or MySQL query time – […]

Dave Hilditch
Talk to me
Dave Hilditch
Founder at WP Intense
Author of the WPI performance guides and creator and coder of the plugins sold by WP Intense.
Dave Hilditch
Talk to me
Latest posts by Dave Hilditch (see all)
You can chat to all our authors on our Discord

Avoid Cache-busting Plugins

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clear_cache_partition_on_Moto_G_and_Moto_X_after_Android_Lollipop_update_4_wipe_cache_parition[1]
Dave Hilditch
Talk to me
Dave Hilditch
Founder at WP Intense
Author of the WPI performance guides and creator and coder of the plugins sold by WP Intense.
Dave Hilditch
Talk to me
Latest posts by Dave Hilditch (see all)
You can chat to all our authors on our Discord

Traffic spikes tend to hit one or two pages on your site, so to profit from traffic spikes you need to ensure everything is cachable and that everything is actually cached. Pages are only cachable if they do not have unique content per user. Unique content per user includes things like: Wishlist widget – if […]

Dave Hilditch
Talk to me
Dave Hilditch
Founder at WP Intense
Dave has been programming since 6 years old and has been developing WordPress plugins, themes and websites since 2010. In the past he built the fast browse view technology for Skyscanner and now he is on a mission to make WordPress the fastest platform on the planet.

He is always on at least one of his computers when he's awake, so get in touch and he'll get right back to you.
Dave Hilditch
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Latest posts by Dave Hilditch (see all)
You can chat to all our authors on our Discord

How to do WordPress plugin performance analysis

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xdebug-profiler-wordpress-plugin-optimisation
Dave Hilditch
Talk to me
Dave Hilditch
Founder at WP Intense
Dave has been programming since 6 years old and has been developing WordPress plugins, themes and websites since 2010. In the past he built the fast browse view technology for Skyscanner and now he is on a mission to make WordPress the fastest platform on the planet.

He is always on at least one of his computers when he's awake, so get in touch and he'll get right back to you.
Dave Hilditch
Talk to me
Latest posts by Dave Hilditch (see all)
You can chat to all our authors on our Discord

In the video below, I show an example of performance analysis of a WordPress plugin. Performance optimisation is firstly performance analysis – you need to find out where your performance bottlenecks are. Performance bottlenecks in WordPress are most commonly found in the database, so a plugin tool like Query Monitor can help a great deal. If […]

Dave Hilditch
Talk to me
Dave Hilditch
Founder at WP Intense
Dave has been programming since 6 years old and has been developing WordPress plugins, themes and websites since 2010. In the past he built the fast browse view technology for Skyscanner and now he is on a mission to make WordPress the fastest platform on the planet.

He is always on at least one of his computers when he's awake, so get in touch and he'll get right back to you.
Dave Hilditch
Talk to me
Latest posts by Dave Hilditch (see all)
You can chat to all our authors on our Discord

Profiling WordPress PHP code using Xprofiler

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wpiblog
Dave Hilditch
Talk to me
Dave Hilditch
Founder at WP Intense
Dave has been programming since 6 years old and has been developing WordPress plugins, themes and websites since 2010. In the past he built the fast browse view technology for Skyscanner and now he is on a mission to make WordPress the fastest platform on the planet.

He is always on at least one of his computers when he's awake, so get in touch and he'll get right back to you.
Dave Hilditch
Talk to me
Latest posts by Dave Hilditch (see all)
You can chat to all our authors on our Discord

There are a multitude of profilers available for WordPress but they all fail in some way to provide the real results you need. Query Monitor, for example, is fantastic for profiling database queries, which is normally where performance problems come from, but it lets you down a little when it comes to finding out which […]

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Come chat to me on our Discord server to ask questions - Dave Hilditch, WP Intense

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