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Why is My Website Loading Slowly? Top Reasons for Slow Sites Speed Explained


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Have you ever wondered why your website is loading slowly?

Knowing what causes websites speed to be slow is one of the first steps to the solution of improving the speed of your site(s).

In this article we will review the top reasons for slow loading websites like:

  • too much traffic
  • wrong hosting server
  • unoptimized images
  • bad hosting provider
  • bad coding
  • inefficient cache
  • too much http request
  • security issues
  • lack of CDN

Before we get started, please know that this reasons why websites load slowly post is packed with points based on many website tests and things you might not have heard before.

However, if you stay open-minded and is willing to not follow the hoard, you will appreciate the information.

Why is My Website Loading Slowly? Top Reasons for Slow Sites Speed Explained

Below are the top reasons for website pages with slow loading time.

You Are Probably The Top Reason

Yes, the biggest problem might be you.

So why is that?

Most people follow the herd mentality.

They do things because everyone is doing it or some “guru” said so.

Oftentimes, people will start with an already optimized website, but then go on to start adding bloats because everyone is saying use this plugin or that tool or add that feature(s).

You really don’t need all the extra things you are adding to your site(s).

And you need to have speed in mind before even starting your website.

Simplicity is always better.

Think twice before upgrading to that premium theme or plugin or tool.

Why? Because premium themes, plugins, and features like flash elements tend to have a lot of bloat.

Using a Bad Web Host or Wrong Plan

The causes for your site pages slow loading time may not be entirely your fault but rather the fault of the web hosting provider or the plan for the amount of traffic you have.

Your current hosting plan simply might not be capable of handling the traffic to your site.

This could be due to the servers running commodity hardware and processors which may not be able to provide the required bandwidth and as a result may be leading to high latency issues.

Another cause is just being with a bad host with constant performance issues ( no web host will really be fast 100 percent all the time but the good ones have less of these speed issues).

Part of choosing the right website hosting service company is avoiding the hosting service providers that stack a lot of websites on the same server.

Focus on finding a web hosting company that provides top quality hosting solutions with well-optimized servers and less websites stacked on it.

If you are interested in getting a new web host, you can get a good cheap one with BlueHost( for beginners or sites without much traffic), WPengine( Full managed WordPress hosting, incredible customer support, extremely fast), GreenGeeks (LiteSpeed server hosting).

Too Much Traffic

When a website is getting too much traffic than the server can handle this will lead to it being slow.

At this point it is time to upgrade to a server than can handle your website traffic.

If you are on a shared server then it is time to upgrade to a dedicated or vps server.

Some website hosting companies that offer great customer support and infrastructure for VPS or dedicated server plans that you should consider are GreenGeeks, BlueHost and WPengine.

Not Having CDN For International & Heavy Trafficked Sites

If you have an international website with a lot of traffic, not enabling CDN may be one of the causes of your web pages not loading fast.

Content delivery networks when used and set up correctly can can prevent slow speed for web visitors in different countries.

Inefficient Cache

Not having server or browser cache in place or setting then up incorrectly is another reason we have seen that kills a site speed.

Using The Wrong CMS Version

Popular content managers like WordPress & Joomla regularly fix some of their bugs and problems and send periodic updates to install them.

These updates can lead to more efficient and faster functioning of the CMS.

Not installing or ignoring these updates will likely prevent your site from running faster and smoother than ever before and utilizing the improved infrastructure.

Oversized and Un-Optimized Images

Un-optimized high-resolution images consume a lot of bandwidth.

The truth is that more often than not, these high-resolution images are not required.

Uploading a lot of high-resolution images without compressing and resizing them will increase the size of your web page, thus causing your website to take longer to load.

As a result, these un-optimized images will take their own time to load whereas the text on the website will load first resulting in a bad user experience.

Security Issues like DoS & DDoS Attack

DoS stands for denial of service.

It is a web security attack where one computer is used to attack a server to bring it down.

The idea is to shut down your website or slow it down.

 DoS and DDoS are serious issues for a site speed.

Both of them typically slow down websites as the servers are flooded with bad traffic.

Using a Bad CMS Theme

For those using WordPress, a theme is really the foundation of your website performance.

If you are serious about a fast website, start with or switch to a theme that is super fast.

Fast means less bloat and small overall size.

Free themes like and GeneratePress WordPress's own Twenty themes are enough options.

They are super lightweight and not bloated, especially, the Twenty-Twenty and Twenty Twenty Two.

They have a lot of features built into the core which reduces plugin use.

Bad Tools & Features

What we mean by bad tools is using tools like plugins that are bloated.

For those using CMS like WordPress and Joomla using badly coded plugins will increase your website site and memory usage.

For your Joomla or WordPress best performance use lightweight plugins .

This will help prevent and improve a slow website speed problems.

Bad features means using things like flashy elements through hard coding or with tools like plugins.

They usually lead to a website loading slowly so only add flashy elements if you really need it.

Consider Hiring a Professional

We recommend that you consider getting a website speed expert help after learning about the reasons why your website is taking longer to load.

Some of the pages speed loading time issues mentioned in this article requires a website performance professional help to fix.

This is because it takes time and advanced knowledge of website speed improvement optimization to apply some of the fixes properly.

For WP users, getting expert WordPress speed service is recommended.


The Recap for Top Reasons For a Slow Website Speed

We hope that this article has given you an insight into the various reasons for your website's slow loading time issues.

The reasons presented are not meant to be all the factors but they are the main issues most of the time.

Now that you have learned what causes a web page speed to be slow, you can now avoid doing those things and fixing them.

Please remember to consider WPENGINE or BlueHost or GreenGeeks for a VPS, dedicated or other servers if you are considering upgrading to stronger servers or new hosts.

Emmanuel Okeke

A Los Angeles resident who loves to write awesome guides on SEO, WordPress speed/security, content strategies, business and personal finance, digital and growth hack tools, legal stuff, etc, that are helpful to businesses, solopreneurs, bloggers, and consumers.

What I write about is based on tests, extensive research, and 11+ experience as a former Senior digital & content marketing consultant with a division of Thomson Reuters and running a successful digital marketing agency...[Read full bio]