What is the cache browser and how to clear it – WAU

The browser cache is a space used by browsers to store static files used by websites. Understand why you need to clean it frequently and learn how to do it on major browsers!

If you have already done any activity such as creating a blog or website in WordPress, and needed to make any changes to a plugin or theme that it uses, probably, when doing the tests, the changes have not happened in the browser.

However, before looking for errors in the code, the first recommendation is always clear the cache browser.

Although the browser cache is an extremely important resource to offer more speed for loading pages on the internet, it must be cleaned with some frequency, precisely because it can cause problems during browsing.

In this post, we will show:

Want to better understand how it works? Come on!

What is it and why does the browser cache get full?

Most browsers use the cache to store data for all websites visited by a user. Its function is to make the loading of the user’s next visit to the site faster.

This is possible, because when the user makes the second visit on the page, the browser loads only the dynamic content of the website, that is, it will only load information that is not stored in the cache. This makes navigation more agile.

However, the cache does not store the entire page of the website, although this is possible. Instead, it stores only static content that does not change all the time, such as JavaScript code, images, style sheet files, etc.

The browser cache is full because it has a pre-established size limit, which can also be changed to be larger. However, at some point, it reaches its maximum value and, to continue its work, it eliminates the items stored longer to make room for new ones and improve navigation performance.

How important is it to clear the cache?

Who has never heard the recommendation to clear your browser’s cache when you can’t browse any page?

A very common example of this problem is an error in which the user tries to log in to a CMS, such as WordPress, but the system does not comply and the page always returns to the login screen. One of the causes of this failure may be cached files.

This is because the changes made to the site, to one of these static files, which are stored in the user’s cache, are not downloaded at all times by the browser. Thus, he understands that this content is static, so he does not have the need to download it.

To avoid this problem, it is recommended to clear the browser cache on a regular basis or when you notice strange behavior on some page. When cleaning and accessing the site again, the browser will load the latest version of all static files. Thus, new changes made to a website can be updated in the browser.

How to clear the cache of the main browsers?

You probably already filled out a landing page to download some interesting content and, after a few days, came back on the same page and realized that the information you filled in was still there.

Well, in addition to the static files on the websites, the browser also stores other important information for navigation, such as form data, cookies, browsing history, among others.

Therefore, when cleaning the cache it is important select what you want to delete so as not to erase other data, such as cookies, which among other functions store the login and password of websites. Next, we’ll show you how to clear your data in the main browsers.

Google Chrome

To clear the cache in Chrome, click on the “Customize and control Google Chrome” option located on the same line as the navigation bar, represented by the three dots icon.

clear chrome cache

Then click on “More Tools”> “Clear Browsing Data”.

clear chrome cache

A screen will open with two cleaning options: “Basic” or “Advanced”. In the “Basic” option, it will be possible to delete the “Browsing history”, “Cookies and other website data” and “Images and files stored in cache”.

clear chrome cache

The “Advanced” alternative, on the other hand, allows the exclusion of more information, such as passwords and login data, form data, among others.

clear chrome cache

Choose which type of exclusion you want to make and select the corresponding period. If you want to delete everything, select the option “Every period”.

Click on “Clear Data”.

Mozilla Firefox

To clear the cache in Mozilla, click on the “Open Menu” option located in the address bar line and select the alternative “Options”.

Select the panel for “Privacy and Security”. In the “Cookies and website data” section, click the “Clear data” button.

file cache Mozilla Firefox
file cache Mozilla Firefox

Internet Explorer

To clear the cache in Internet Explorer, click on the “Settings” icon located on the same line as the address bar. Then select the alternative “Security”> “Delete Browsing History”.

clear internet explorer cache

The browser will open a window with some pre-selected options, including “Cookies and website data”. To delete the content, press the “Delete” button.

clear internet explorer cache

Microsoft Edge

To clear the cache on Microsoft Edge, click on the “Settings and more” alternative, located on the same line as the address bar, or use the shortcut “Alt + x”. Then select the alternative “Settings”.

clear Microsoft Edge cache

Select the “Privacy and Security” panel and click the “Choose what to clean” button.

clear Microsoft Edge cache
clear Microsoft Edge cache

Make sure that the “Cached data and files” option is selected and press the “Clear” button.


To clean in the browser, click on Safari’s general settings button, located on the same line as the address bar. Then select the “Preferences” alternative.

clear Safari cache

Click on the “Privacy” tab and press the “Remove all data from sites” button.

clear Safari cache

In this post, we saw that the browser cache plays an important role in browsers, as it stores files that are not updated frequently to ensure faster loading of data from the internet. However, it is necessary to clean this storage periodically to avoid problems during navigation.

Did you like our content about the importance of clearing your browser’s cache? Then, download our website launch checklist to see if yours already has everything you need to ensure an excellent result!