Immutable assets with unique URLs in WordPress for enqueued JS and CSS files

If you’re utilizing the browser cache correctly, you’ll gain huge performance benefits for your users, as well as save bandwidth and server capacity which equals to saving money. To do this right, you must create unique URLs for all versions of your resources, and tell them to never ask for the content again by telling the browsers that the assets are immutable resources.

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SVG uploads in WordPress (the Inconvenient Truth)

Enabling uploads of SVG files in WordPress is quite easy, and there is a tonne of posts on the Interwebs explaining how you do it. Usually along the lines of:

And that’s pretty much it.

Except it is not.

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Run all due cron events for WordPress with WP-CLI

Running a real cronjob is much more reliable than WordPress’ built-in “maybe-will-trigger” solution. But if you’re running a multisite network, you have to add a crontab entry for every site you set up – which is tedious. Thanks to WP-CLI, we can use a small bash script instead, which will run all due events for all sites for us. Oh, and it works for single sites as well. Continue reading “Run all due cron events for WordPress with WP-CLI”

Block access to PHP files on your WordPress site with Nginx

In your WordPress site, there are directories that include PHP files that visitors should never be able to access directly. They are only there for WordPress to function as an application that runs on your server. But because of WordPress’ directory and file structure, they are kind of accessible to the public. All of them are meant to be part of a larger application – WordPress, that is – and should not cause any harm if called directly – that we know. Some of the files execute some code even when ran standalone. An attacker might know of a clever way to make that code run in an unexpected manner, causing harm. To be on the safe side, we should deny access to all these PHP files from the outside world. Since we block access to them in our Nginx configuration, PHP will still run them as usual and WordPress will work just fine.

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Two Factor Authentication for WordPress

If you’re using a strong password, brute-forcing is a very inefficient way of breaking into your WordPress account, and if it is really strong, dictionary attacks won’t help much either. However, there are are other, easier, ways for a mischievous person to get their hands on your login credentials e.g. with phishing, keyloggers or a MITM attack. By using a two-factor solution, you will increase your login security by an order of magnitude. Continue reading “Two Factor Authentication for WordPress”

WordPress behind Big-IP

To be honest, I don’t exactly know too much about Big-IP, but I’ve come across someone who use it. They terminate HTTPS in Big-IP and WordPress runs on plain HTTP on port 80 on the backend nodes. By default, this makes WordPress confused, so you can’t login to the WordPress dashboard. Continue reading “WordPress behind Big-IP”

«Slap-on» speed optimization of your WordPress site

OK, so you might have been at a WordCamp listening to talks or reading a few blog posts and you get that you should really get your WordPress site speed optimized. Starting all over isn’t either tempting nor something you have the time for. Don’t despair, you’ll get a long way by installing 5 plugins.
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Make Gravity Forms’ JavaScript load in the footer

Gravity Forms is not only THE way to create and manage forms in WordPress, but is also pretty awesome when it comes to extensibility and flexibility. However, as most software, it has its issues. One of those is how it outputs some of the JavaScript, which in certain cases will break your site. This is how to fix it.

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Publishing WordPress site from development to production server – or moving your WordPress installation from one host to another

WordPressYou have finished that WordPress site, and want to deploy it – move it from your test server to the production server where it goes live. But how? WordPress have a famous 5-minute-install, but there is no 5-minute-go-live-script*. I’ll show you how in these 5 easy-to-follow steps. Continue reading “Publishing WordPress site from development to production server – or moving your WordPress installation from one host to another”