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Errors and mistakes in website design and coding are inevitable that any website designer may make. Some of these mistakes are mentioned below in 3 parts: coding mistakes, design mistakes and SEO mistakes.

Programming errors

Mistakes that cause website overload include:

1- Plugins and templates problems

Plugins and templates are really great. They can help you add anything to your website without hiring a developer or coding yourself. But when you use weak and vulnerable codes, it can be a problem for your website.

Even when you have time to check, install and remove all of them, all these things can be a problem, because both your time is wasted and the bandwidth of the website is consumed.

To resolve these issues, do the following.

2- Use only the plugins you need.

If you have plugins or templates installed on the website just for testing and you are not satisfied with them, get rid of them. If you feel that they may be needed sometime, you can keep the zip file somewhere.

Note: If you delete a plugin or a template, read its readme file first. Some of them have their own procedures for cleaning.

3- Only use templates and plugins that use valid and reliable addresses with clean and optimized codes.

There are tons of plugins and templates out there that are worthless. They are developed by an amateur or sloppy person. They do not even have any support and are not updated and are not synchronized with new versions of WordPress. Also, some of them are made for misuse and malicious purposes.

4- Find plugins that consume a lot of resources.

With the tool you use to test website speed, you can identify plugins that are used a lot. Test your website with these plugins and without them. If by disabling a plugin, the loading speed increased, then you have found a problematic plugin. If you can find a replacement for it, unzip it and install the replacement.

Also, for this case, there is a plugin that you can use to identify weak plugins: Query Monitor .

5- Have inefficient scripts with wrong coding

Computer code is a set of machine instructions that are executed over and over again in order to get the same expected results. Generally for web hosting, there is a set of instructions in a programming language like PHP. If the scripts on your website are efficiently and custom coded, they should usually have an execution time of under a second.

You are suggested to read our article to get information about coding technique and what coding is .

The behavior of all websites is not the same in terms of memory usage, like some scripts that have optimizations and extensions inside them, such as the possibility of caching in Joomla. Depending on the level of traffic your site receives, even an active plugin or script that is resource intensive or poorly coded can put a huge strain on server resources.

Therefore, it is better to limit the number of modules, extensions and plugins that you use and delete those that are no longer active. An outdated and unupdated script/plugin/module will often fuel the problem of resource abuse, so all installed scripts, including any third-party add-ons, should be updated. Developers should also constantly improve their scripts and clean up security holes in order to increase efficiency.

Despite these measures, if resource usage issues persist, the suspect script should be isolated and resolved by resetting, disabling, or replacing it with a working script. Implementing entire pages in PHP language in XAMPP, WAMP and EasyPHP environments can display special scripts or separate functions that take up most of the time. It is possible to identify the problematic plugin by using the P3 Profiler plugin and solve the problem with a better replacement.

6- Your website has been hacked

A hacked website often results in abnormal usage of resources in your account and excessive CPU load due to the multiple automated and additional activities it generally has to perform each time a page is attempted to load. . Most malicious users who try to hack your website aim to redirect users to a dangerous site or use your website to send spam.

In addition to using a secure password and keeping all software up-to-date, you should install a plugin, such as Sucuri, to scan your site and warn of possible hacks. For the last 30 days, have a backup to protect your site, so that if a problem occurs, you can easily use it to return your website to the version before it was hacked. If your website has been hacked, it should be manually checked by an expert, who may have to clean up the htaccess code or perform a code injection attack to stop hackers from diverting your website traffic to another website.

7- Have several WordPress websites on one website

Most dynamic content management systems, such as WordPress, use a database or databases to store information, so that each time a visitor comes to the site, PHP scripts interact with the database to retrieve this information. call to send to the browser. In shared hosting spaces, if your site gets decent traffic, using the current default WordPress system to recreate the same HTML page for every visitor request will be very inefficient.

If your WordPress website users are at an advanced level, it is recommended to use a caching plugin, such as W3 Total Cache. And for WordPress beginners, consider the WP Super Cache plugin and reduce the load on server resources by up to 90%. If you have multiple WordPress websites on a shared server, you will need more RAM and CPU to run the website efficiently under a shared hosting account. So think about getting extra hosting space for some of your blogs.

You are suggested to read our article to get information in the most important area of ​​starting to learn programming .

8- High volume of web traffic

Traffic can occur for any of the following reasons:

When automated bots crawl your site.

When your website has spam in the comments section.

When other malicious activities are in progress.

When the entire traffic allocated to the website is used in a short period of time.

If your website is popular, you may regularly encounter high CPU usage and you may need to upgrade one of your customers’ accounts from a shared host to a dedicated server. If an unexpected traffic spike occurs on your site just once, your hosting server will need more system resources to handle such a large amount of traffic.

A completely static website with only HTML files and images is much lighter in using shared server resources than dynamic websites based on Joomla, Drupal or WordPress. When your web traffic increases, new website requests increase the need for server resources. In such cases, you have the right to choose to upgrade your account to VPS (virtual personal server) or dedicated server, so that you can access more resources.

The most common ways to optimize your website when you have a high volume of traffic is to use caching (page cache and browser cache ) to reduce duplicate database connections and limit dynamic content such as plugins and modules.

9- Opening files or database connections

Your website should close a file or a database connection immediately when it is done. Otherwise, it will run a process that will not be closed and will increase the load of the website and may cause excess consumption.

10- Wrong commands to the database

When you execute a query in the database, you should do it in the most optimal way.

If you want a part of a table, it is better to do this in a query than to call the whole database or table and find and select it in the coding of the website.

mistakes in website design

The mistakes that cause the website to be slow are:

1- Use cache plugins.

The cache plugin helps you load the contents that have already been downloaded faster.

By doing this, most of the content of the website that does not need to be changed is stored on the browsers. In this way, the website load speed increases and the server load decreases.

Famous cache plugins for WordPress are as follows.

• W3 Total Cache
• WP Super Cache
• WP Rocket
• Comet Cache
• WP Fastest Cache

2- Using a CDN

Doing this almost guarantees that the speed of your website will increase, this is the use of content delivery networks or CDN. With CDNs, static files, especially multimedia files, are loaded from the CDN’s servers, not the server you pay for. Also, its servers are closer to mistakes in website design visitors. (It is recommended to read the article “What is CDN service ” for a better understanding of this issue )

That’s why it’s a win-win situation. For this reason, it will be useful for you to use it. For this you can use this guide to use Cludflare .

Other CDNs are mentioned below:

• MaxCDN
• Amazon AWS
• KeyCDN
• WPPnto
• CDN77

3- Compress website photos.

Compressing images plays an important role in the speed of your website, especially when you have a large number of them. Also, nowadays, the high quality of photos is one of the expectations.

Unfortunately, nowadays, most of these free software and plugins offer you this task, but they do not do it properly.

For this, you must use reliable software and plugins that have already been tested.

Also, you can use the Compressor.io website, which compresses your photos from 40 to 70 percent.

This mistakes in website design does this for you completely free of charge, and you don’t need to add plugins to your mistakes in website design or download any software. You simply upload your photo and it will show you live. How much compression is done