What is Cache? Know understanding and Benefits

Caching is a process used by browsers and applications to store information. You must have ever deleted history in the browser, right? When you delete history, there must be a phrase "clear Cache". For example in Chrome, if you want to delete history, you will be given the option to delete cached images and files. This process is usually used to protect privacy or save storage space. But if you are not sure what the cache is, and need to understand what the cache is, here we will discuss.

What is Cache?

Caching is the process of storing temporary data so that sites, browsers, or apps don't need to download the data repeatedly. Tristan Liverpool, Director of System Engineering at F5 Network compares by traveling. When you drive to a new location for the first time, the brain will store information about the trip. At other times, when you return to the location, you will use that information to help identify some spots and will be faster. The function is the same as the cache. When a user visits a website for the first time, the browser will store information that helps the device access the website more efficiently for subsequent visits.

There are many ways data can be cached, but it usually depends on the website owner to set that known as "header" on the data. This tells the computer that the user can be cached. The website owner sets the caching instruction and the browser will know what to download. Instructions should also include how and where those files are temporarily stored. You can change the policy manually, what's in the cache and what's not. You can also set a policy to set preferences or delete entire caches that belong to a temporary file at any time.

Benefits of Caching

Caching helps make apps faster and more efficient as data is stored locally. In browsers, cached data is information that will make websites load faster as they can access data faster than local folders. For example, the image on the homepage or the blog site can be relatively large, so caching elements in need only be downloaded once. Users are sure to leave the website more often if they load too long. Therefore, using caching is an important way for site owners to improve the user experience. In the future, estimated office tools like Google Docs will often be used because many people already feel the benefits. Thus, the user will also use more caching.

Caching is also used by applications

Caching is not only used by websites and browsers only. The same caching process applies to apps on your phone by relying on web and cloud data. Notable applications such as Spotify also use caching. The caching process will work when the user downloads the song and saves the favorite song from Spotify so that it can be accessed when the phone is no signal. The songs are not stored on the phone indefinitely but will be automatically deleted after a few weeks. Downloading songs to the cache so that they can be heard when there is no signal is an innovative and helpful cache use. Spotify ensures that users can still listen to songs with their caching strategy.

Vulnerability Caching

While caching can improve web search performance, caching can also make you vulnerable to hackers. Because webpages are cached in the browser, which tends to contain confidential and sensitive information. This means that in theory can display authentication data or customer information. Another problem is that if the browser is left unattended, then other users can access on the shared computer, other users can use the previous history from the browser's cache.

How to clear Cache

As mentioned earlier, clearing the cache is deleting the stored data. So, check well if there is an important history, so as not to be erased.


Open Chrome, click the three vertical dots in the upper right corner.
Open "More Tools"
Select "Clear Browsing Data"
Check the cookies and site plug-ins box

You can choose the amount of data you want to delete. Start from deleting data in the previous day until from the beginning using the browser. After determining the option, click "Clear Data".


To delete it, select "History", then "Clear History". A Drop-down will appear, which allows you to delete all data from the last hour, today, yesterday, and all history. By deleting History, you also delete any cookies and all cache in the browser. Or we can choose an entry in the list, right-click and delete if you want to delete individual sites.


Click the menu button, select "History", then "delete the recent history." Choose how much history you want to delete by selecting a period, just like the process done with Chrome. Then, click the arrow next to Details to choose what information to delete. Then, click the "Clear Now" button


You can clear the cache on Android to free up space on your phone through settings. Under Settings, select the Applications menu, find and specify which apps you want to clear the cache or data for. The buttons for clearing your cache and app data are visible and you can see how much storage you use and then delete them.


In the same way as Android, go to "settings", "General", "Storage & iCloud Usage". In "Storage", select "Manage Storage". To see the storage used by each app, select it from the list, open Documents & Data.

A Note to Keep

Caching is a process used by browsers and applications to store information. While caching is useful to save time and data, the cache can also be corrupt. The Virus can download itself to the browser cache, and then infect the entire computer. Files can also be very outdated (because they are too long) if the cache is not cleaned. This can cause the pages you see irrelevant or even cause errors. Caching also usually takes up quite a lot of storage. Given that some phones and computers have limited storage, it is also important that the cache is cleared. You can clear the cache on your device or app if your phone starts to slow or crashes.
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