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Blog.jirivanek.eu/en/      Digital notebook

Glossary of terms
Wordpress for beginners
Personal opinions
Personal opinions
Wordpress for beginners
Glossary of terms

Blog.jirivanek.eu   Digital notebook

Jiří Vaněk

I have been revolving around IT technologies for almost 17 years now. Especially those that connect the traditional and online world. I find these technologies interesting from both the perspective of a person responsible for them and that of an ordinary user. In my personal life, I love adrenaline. I enjoy motorcycles, cars, firearms, but also electric mobility. I love books, but I also enjoy writing. And when I have time, I write here. Both technical stuff and personal stuff.

What is cache and why use it in WordPress

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Co je to cache a proč ji ve WordPressu používat

WordPress has become a very popular content management system in the last two years. For many people, it has become a starting point for entering the world of web development. However, this system is constantly evolving, and what defines it better than anything else is the fact that its requirements for size and memory are constantly growing. And with that, the demands for performance also grow hand in hand. The official repository currently allows the installation of many thousands of plugins, which has created the phenomenon that WordPress is slow. However, this is not so … Read more

How to change the database prefix in WordPress

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Jak změnit prefix databáze ve WordPressu

You are probably using the WordPress content management system for your website. Then you may know, that this system uses a database to store content data such as articles, pages, users, meta information, and many others. In a basic installation, WordPress uses a total of 12 tables, each with its own prefix. The default prefix in WordPress is ‘_wp’. However, hackers can exploit this fact by specifically targeting such a prefix. For security reasons, it is therefore good to have a prefix other than the default. If you did not choose a different prefix during … Read more

How to load Google fonts faster in WordPress

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Jak rychleji načítat Google fonty ve WordPressu

Most WordPress templates available today use fonts from Google. It’s great because you have the option to customize your website’s text to your liking. However, there is one significant drawback. The fonts are not stored locally on your web hosting, and they are remotely downloaded from Google servers. If you have ever measured your website’s performance using PageSpeed Insight, you may have found that this font downloading significantly affects performance, especially for mobile versions of the website. It slows down TTFB (Time To First Byte) significantly. Let’s take a look at how to load Google … Read more

Why is the website not displaying correctly on Facebook?

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Proč se web na Facebooku nezobrazuje správně?

You may have noticed that the Facebook app has started using its own internal web page browser. This means that every time you click on a link in the app, the page is displayed in Facebook’s internal browser, within the Facebook app, instead of in the default browser like Chrome or Firefox. This can be a reason why is the website not displaying correctly on Facebook. Let’s take a look at why this happens and how to fix it. Why is the website not displaying correctly on Facebook? First, let’s talk about the problem and … Read more

The problem with HTTPS and mixed content

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Problém s HTTPS a mixovaným obsahem

HTTPS is a protocol that provides encrypted communication between the server and your browser. Simply put, this means that everything you send to or receive from the server is encrypted. So, if you enter your credit card number in your browser, the data is first encrypted, sent to the server, and then decrypted into readable form. If a hacker intercepted the data between you and the server, it would be useless to them because it would be encrypted. You may be familiar with this function mainly because of the green padlock in your browser. It … Read more

Where can you find me?

leave

I have over 17 years of experience in operating a data center in South Bohemia, with continuous monitoring duties as an administrator and extensive experience in customer support operations. I also have knowledge in domain registration and management, including the management of DNS domain names.

I am actively capable of working on and solving technical issues with the most commonly used content management systems for web hosting and e-commerce solutions. I am proficient in creating websites on WordPress platforms using modern tools such as Elementor. Additionally, I am interested in security solutions and risks associated with these content management systems.

Contact

E-mail: vanek@jirivanek.eu
Web: https://jirivanek.eu/en/

blog.jirivanek.eu/en

Irregular blog about the world around us. Articles about technology, politics, investing, and anything else I feel like writing about.

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Email: vanek@jirivanek.eu/cs