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Common WordPress mistakes beginners should avoid

Learn about common WordPress mistakes that can affect your site's security, reliability, and maintenance, and how to avoid them.

Written by Surya

WordPress is easy to get started with. You can have a website online in an afternoon, install a theme, add a few plugins, and start publishing.

The problems usually come later.

A forgotten update can break a site. A weak administrator account can become a security problem. A missing backup can turn a small mistake into a major headache. And sometimes the issue is much simpler: a setting was changed during development and nobody remembered to change it back.

If you're new to WordPress, these are some of the mistakes worth avoiding from the beginning.

1. Treating updates as something you can do "later"

It's easy to ignore the update notification when everything on the site is working.

The problem is that WordPress updates are not only about new features. WordPress core, plugins, and themes regularly receive fixes for security issues, bugs, and compatibility problems.

Leaving outdated software installed for months gives known vulnerabilities more time to become a problem.

A better approach

Keep WordPress core, plugins, and themes updated regularly.

Before making larger updates:

  • Make sure you have a recent backup

  • Check that the plugin or theme is still actively maintained

  • Update one site or staging environment first when possible

  • Check important pages after the update

You don't need to spend hours doing this manually. A proper maintenance system can keep track of updates and alert you when something needs attention.

Tip: If an update breaks your website, don't immediately start installing more plugins to fix it. Check the error, identify what changed, and use your backup or staging environment if necessary.

2. Making changes directly on the live website

When you're new to WordPress, it's tempting to try everything directly on the production site.

  • Change the theme.

  • Install a plugin.

  • Edit some code.

  • Update another plugin.

Then suddenly something looks strange and you're not sure which change caused it.

A better approach

For important changes, use a staging site when your hosting setup supports it.

A staging site gives you somewhere to test:

  • WordPress updates

  • Plugin updates

  • Theme changes

  • Custom code

  • New features

  • Design changes

Once everything looks good, you can apply the changes to the live site.

For smaller websites, staging may not always be practical. In that case, having a recent backup before making major changes is especially important.

3. Using an easy-to-guess administrator account

Your WordPress login is one of the first things attackers will target.

Using usernames such as admin, administrator, or your website name makes the username easier to guess. It doesn't give someone access by itself, but there is no reason to make their job easier.

Protect your administrator accounts

Use:

  • A unique administrator username

  • A long, unique password

  • A password manager

  • Two-factor authentication where possible

  • Separate accounts for administration and everyday content work

You should also review your administrator users from time to time.

If someone no longer works on the website, remove their access instead of leaving an old account active.

4. Installing a plugin for every small problem

There is probably a WordPress plugin for almost anything you can think of.

That is one of WordPress's biggest advantages. It can also become a problem. You need a contact form, so you install a plugin.

You want analytics, so you install another. Then one for redirects, one for custom code, one for performance, one for social sharing, and another because a tutorial recommended it.

Eventually, you have dozens of plugins doing things you barely remember.

Before installing another plugin, ask: Do I actually need this?

Also check:

  • When was it last updated?

  • Is it compatible with your WordPress version?

  • Is the developer still maintaining it?

  • Does it have a good reputation?

  • Does another plugin you already use provide the same feature?

More plugins don't automatically mean a slower or less secure website, but every additional plugin adds code that needs to be maintained and can potentially conflict with something else.

5. Leaving unused plugins and themes installed

Deactivating a plugin is not the same as removing it. An inactive plugin still exists on your server. If it is no longer needed, there is usually little reason to keep it around.

The same applies to themes.

You might have installed five themes while testing different designs, but your website probably only needs one active theme and, depending on your setup, a fallback theme.

Do a cleanup occasionally

  • Go through Plugins and Appearance → Themes.

  • Remove things you no longer use.

Before deleting anything, make sure it isn't required by another part of your website.

Keeping your installation tidy makes maintenance easier and reduces the amount of software you need to keep track of.

6. Forgetting about backups until something goes wrong

A backup isn't particularly exciting when you don't need it. You only appreciate it when something breaks. A bad update, accidental deletion, hosting problem, database error, or malware infection can cause serious damage. Without a usable backup, you may have very few options.

A useful backup setup

Your backups should ideally include both:

  • Website files

  • Database

And don't rely entirely on a backup stored on the same server as your website.

If the server has a serious problem, your website and your backup could disappear together.

Keep copies somewhere separate from the website and periodically check that they can actually be restored.

Important: A backup that has never been tested is only an assumption that you have a backup.

7. Forgetting basic WordPress settings after launch

Some WordPress settings are easy to change during development and then forget about. One example is the setting that asks search engines not to index the website. While you're building a new site, this can be useful. Leaving it enabled after launch is a different story.

Go to: Settings → Reading and check that your search engine visibility setting is appropriate for your live website.

There are other small settings worth checking after launch too:

  • Site title and tagline

  • Permalink structure

  • Time zone

  • Site URL

  • User registration settings

  • Comment settings

  • Privacy settings

A five minute launch checklist can prevent surprisingly annoying problems later.

8. Ignoring image sizes

Uploading a huge image straight from your phone or camera and placing it on a webpage can add unnecessary weight to the page. For example, you might upload a 6 MB photo when the page only needs a much smaller version.

This can affect loading times, especially for visitors using mobile networks.

Before uploading images

Try to:

  • Resize images to a sensible display size

  • Use modern image formats where appropriate

  • Compress large images

  • Avoid uploading multiple versions you don't need

Don't obsess over getting every image as small as possible. The goal is to find a sensible balance between image quality and file size.

9. Making changes without knowing what changed

When something goes wrong on a WordPress site, the most useful question is often:

What changed recently?

  • A plugin was updated.

  • A theme was changed.

  • A new plugin was installed.

  • A PHP version was changed by the host.

  • A developer modified some code.

Without any record of these changes, troubleshooting becomes guesswork.

For sites that are actively maintained, keeping track of updates and important changes can save a lot of time.

If you're managing multiple WordPress websites, this becomes even more important. You should be able to see what happened without having to remember every change yourself.

10. Giving everyone administrator access

WordPress has different user roles for a reason. Not everyone who needs to edit a website needs complete control over it.

If someone only needs to write blog posts, they don't necessarily need permission to install plugins, change themes, or manage other users. Give people the access they actually need.

When someone no longer needs access, remove the account or reduce its permissions. This is a simple security principle, but it is often overlooked on smaller websites.

11. Using random code snippets without understanding them

WordPress tutorials often contain snippets that promise to fix a problem in seconds.

Sometimes they do exactly what they claim.

The problem is that copying code from a random website and adding it to functions.php, a plugin, or another part of your website without understanding it can create new problems.

Before adding a snippet, make sure you understand:

  • What the code changes

  • Where it should be added

  • Whether it is compatible with your setup

  • How to remove it later

And always keep a backup before making code changes to a live website.

12. Forgetting to check the website after making changes

A WordPress dashboard can look perfectly fine while the actual website has a problem. After important changes, visit the website as a normal visitor would.

Check:

  • Homepage

  • Navigation

  • Contact forms

  • Login

  • Important landing pages

  • Mobile layout

  • Checkout, if you run WooCommerce

  • Search

  • Any other feature that matters to your business

You don't need to test every page after every tiny change. Focus on the parts of the website that matter most.

A simple WordPress maintenance habit

You don't need to become a WordPress expert to avoid most beginner problems.

A good starting routine is:

Keep software updated.
Don't leave WordPress, plugins, or themes outdated indefinitely.

Keep reliable backups.
Store them separately and test a restore occasionally.

Keep access under control.
Use strong passwords, 2FA, and appropriate user roles.

Keep the website clean.
Remove plugins and themes you no longer need.

Be careful with changes.
Use staging for larger changes and keep track of what you modify.

Check the actual website.
The dashboard being healthy doesn't necessarily mean every visitor-facing feature is working.

Review your settings.
Especially after launching a new website or moving it to a new host.

The goal isn't to constantly worry about your WordPress website. Good maintenance should make the opposite possible: you should be able to work on your site knowing that the important things are being looked after.

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