| What cookies store | Login status, preferences, shopping cart data, and tracking identifiers |
| What cache stores | Copies of images, scripts, stylesheets, and other page assets |
| What browsing history stores | URLs visited, page titles, and timestamps |
| Privacy risk level | Highest for third-party cookies; moderate for history; low for cache |
| Where each is stored | All three are stored locally on your device by default |
| Common clear shortcut | Ctrl+Shift+Delete (Windows) / Cmd+Shift+Delete (Mac) |
The Quick Distinction
When you open your browser settings and see options to clear your history, cookies, or cache, it can feel like you're choosing between three versions of the same thing. You're not. Each one stores a different category of data, serves a different purpose, and has different privacy implications. Here's what each one actually contains.
| What cookies store | Login status, preferences, shopping cart data, and tracking identifiers |
| What cache stores | Copies of images, scripts, stylesheets, and other page assets |
| What browsing history stores | URLs visited, page titles, and timestamps |
| Privacy risk level | Highest for third-party cookies; moderate for history; low for cache |
| Where each is stored | All three are stored locally on your device by default |
| Common clear shortcut | Ctrl+Shift+Delete (Windows) / Cmd+Shift+Delete (Mac) |
Understanding the difference also helps when you're troubleshooting a website that looks broken, protecting your personal data, or simply deciding what to clear and when. For a related concept worth understanding first, see how browsers differ from search engines — because the two collect very different kinds of information about you.
Cookies: Small Files That Remember You
Cookies are tiny text files a website saves to your browser. When a site needs to remember something specific about you — that you're logged in, what's in your shopping cart, or which language you prefer — it writes that information to a cookie and retrieves it the next time you visit.
There are two main types:
- Session cookies exist only while your browser is open. Close the tab, and they're gone. These keep you logged in as you move between pages on a single site.
- Persistent cookies stay on your device for a set period — days, months, or longer. They're how a site recognizes you when you return days later without logging back in.
A third type — third-party cookies — is set not by the site you're visiting but by advertisers or analytics services embedded in that page. These are the cookies most commonly associated with tracking your behavior across multiple websites.
Incognito Mode Doesn't Do Everything
Using a private or incognito window prevents your browser from saving cookies, history, and cache locally after you close the session. However, your internet service provider, employer network, or the websites you visit can still see your activity. Incognito is about local privacy on your device, not full anonymity online.
What cookies do NOT store: Cookies don't hold your passwords (those go in your browser's password manager), they don't store images or page content, and they can't execute code or give a site access to your files.
Cache: Stored Copies for Faster Loading
The cache (pronounced "cash") is where your browser saves copies of website assets — images, scripts, stylesheets, fonts — so it doesn't have to re-download them every visit. The first time you load a webpage, your browser fetches all its components from the web. On your next visit, it checks the cache first. If those files are still current, it loads them from your device instead, which is significantly faster.
The cache is about performance, not personalization. It doesn't know who you are — it just knows that a particular logo image was already downloaded and can be reused. This is also why clearing your cache sometimes fixes a broken-looking website: your browser may be loading an outdated version of a page that the site has since updated.
Cache files can grow large over time. On shared or older devices, a bloated cache can actually slow things down rather than speed them up, which is another reason periodic clearing is worth doing.
Browsing History: A Log of Where You've Been
Browsing history is the most straightforward of the three: it's a timestamped list of URLs you've visited. Your browser records the page address, the title, and when you visited it. That's largely it.
History serves as a navigation aid. It powers the address bar's autocomplete suggestions and lets you retrace sites you can't quite remember. It doesn't store the actual page content — just a record that you visited it.
From a privacy standpoint, your browsing history is stored locally on your device by default. However, if you're signed into a browser account (such as a Google or Microsoft account) with sync enabled, that history may also be uploaded to the cloud and accessible across your devices — and to the account provider. For a deeper look at what your browser stores versus what a search engine records, this breakdown of browser vs. search engine privacy is worth reading.
Cookie
A small text file saved by a website to your browser that stores specific information, such as login status or preferences. Cookies help sites recognize you between visits.
Cache
A local storage area where your browser saves copies of website files — images, scripts, and styles — to speed up future visits to the same site.
Browsing History
A time-stamped log of web addresses (URLs) your browser has visited. It powers autocomplete in the address bar and lets you revisit recent pages.
Third-Party Cookie
A cookie set by a domain other than the site you're currently visiting, typically used by advertisers or analytics services to track your activity across multiple websites.
Session Cookie
A temporary cookie that exists only for the duration of your browser session. It is deleted automatically when you close the browser.
Persistent Cookie
A cookie that remains on your device after you close the browser, for a set period of time. It allows a site to recognize you on future visits without requiring you to log in again.
When and Why to Clear Each One
Knowing what each thing stores makes it easier to decide when clearing it actually helps:
- Clear cookies when you want to log out of all accounts on a device, reduce cross-site tracking, or fix a login issue on a specific site. Keep in mind that clearing cookies logs you out of every site simultaneously.
- Clear the cache when a site looks visually broken, isn't showing updated content, or your browser feels sluggish. This forces your browser to fetch fresh versions of all page assets.
- Clear browsing history when you want to remove a record of the sites you've visited from your device or prevent others who use your device from seeing where you've been.
Each browser handles these settings slightly differently, but most let you clear them individually under a "Privacy" or "History" menu, often accessible with the keyboard shortcut Ctrl+Shift+Delete (Windows) or Cmd+Shift+Delete (Mac). You can also use private or incognito mode to prevent history and cookies from being saved in the first place — though this doesn't make you invisible online. To understand more about how your data is stored beyond the browser itself, see how cloud storage works.