如果您在 iPhone 或 iPad 上首选的网络浏览器无法正确显示网站或行为异常，则很可能是过时的网络缓存在起作用。清除它可以帮助解决问题，因为该操作会强制浏览器在后续访问中获取最新的站点数据。
继续阅读以了解如何清除 iPhone 和 iPad 的所有主要浏览器（Apple Safari、Google Chrome、Mozilla Firefox等）上的缓存。
清除iPhone 和 iPad 上的
Safari 缓存(Safari Cache)
如果您在 iPhone 或 iPad 上使用原生Safari浏览器，则有多种方法可以删除其网络缓存。浏览它们并选择最合适的方法。
通过 Safari 清除浏览器缓存
Safari 的历史记录(History)屏幕提供了一个内置选项来清除整个浏览器缓存或刚刚缓存的站点数据。
1. 点击Safari中的(Safari)书签(Bookmarks)图标。
2. 切换到历史(History)选项卡（如果默认情况下尚未选择）并点击清除(Clear)。
3. 选择清除浏览器缓存的时间范围。可用选项包括所有时间、今天(Today)和昨天、今天(Today)和最后一小时。
通过设置清除浏览器缓存
在Safari(Safari)中清除浏览器缓存的另一种方法是使用iOS 和 iPadOS 上的“设置”应用。(Settings)如果浏览器在启动时无法加载或立即崩溃，(fails to load or crashes immediately at launch)请使用它。
1.在您的 iOS 设备上
打开设置应用程序。(Settings)
2. 向下滚动并点击 Safari。
3.向下滚动(Scroll)并点击清除历史记录(Clear History)和网站数据(Website Data)>清除历史记录(Clear History)和数据(Data)。
按站点清除缓存
如果问题仅限于特定网站，Safari提供了一种仅清除该网站缓存数据的方法。
1. 打开设置(Settings)应用程序并点击Safari。
2.向下滚动(Scroll)并点击Advanced > Website Data。
3. 向左滑动网站并点击删除(Delete)。
提示：您还可以使用屏幕底部的删除所有网站数据选项来删除整个浏览器缓存。(Remove All Website Data)与上述方法不同，它不会删除您的浏览历史记录。
您是否也经常在Mac上遇到与(Mac)Safari相关的网站问题？了解如何在 Mac 上的 Safari 中清除缓存、历史记录和 cookie(clear the cache, history, and cookies in Safari on Mac)。
清除Google Chrome中的浏览器缓存(Browser Cache)
当您在 iPhone 或 iPad 上使用谷歌浏览器浏览网页时(use Google Chrome for web browsing on the iPhone or iPad)，您可以选择完全清除浏览器缓存和删除特定时间范围内的缓存数据。
1. 打开Chrome菜单（点击带有三个点的图标）。
2. 选择设置。
3.Tap Privacy > Clear Browsing Data。
4. 点击时间范围(Time Range)并选择一个时间范围 - 过去 1小时(Hour)、过去 24小时(Hours)、过去 7天(Days)、过去 4周(Weeks)或所有时间(Time)。
5. 点击Cookies(Cookies)、Site Data和Cached Images and Files旁边的类别。如果您还想删除浏览历史
记录，请点击浏览历史记录。(Tap Browsing History)
6. 点击清除浏览数据。
清除Mozilla Firefox中的浏览器缓存(Browser Cache)
适用于 iPhone 和 iPad 的Mozilla Firefox(Mozilla Firefox)允许您清除整个浏览器缓存或仅针对特定站点的缓存数据。
清除整个浏览器缓存
1. 打开Firefox菜单（点击带有三个堆叠线的图标）。
2. 点击设置。
3. 点击数据管理。
4. 打开Cache(Cache)、Cookies和Offline Website Data旁边的开关。
5. 点击清除私人数据。
清除特定站点的缓存
1. 打开Firefox菜单并点击设置。
2. 点击数据管理。
3. 点击网站数据。
4. 点击以标记您要删除的站点。
5. 点击清除项目。
清除Microsoft Edge中的浏览器缓存(Browser Cache)
如果您在 iPhone 或 iPad 上使用 Microsoft Edge，您可以删除浏览器缓存或预定义时间范围的缓存数据。该过程类似于清除Google Chrome中的缓存。
1. 打开边缘(Edge)菜单（点击带有三个点的图标）。
2. 选择设置。
3. 点击隐私和安全。
4. 点击清除浏览数据。
5. 点击时间范围(Time Range)并选择一个时间范围 - 过去 1小时(Hour)、过去 24小时(Hours)、过去 7天(Days)、过去 4周(Weeks)或所有时间(Time)。
6. 选择Cookie(Cookies)和其他站点数据以及缓存(Cached)的图像和数据类别。
7. 点击立即清除。
清除 Opera 中的浏览器缓存
与其他浏览器相比，在 iPhone 或 iPad 上
清除Opera中的缓存相对简单。(Opera)
1. 打开Opera菜单（点击带有三个堆叠线的图标）。
2. 点击设置。
3. 点击清除浏览器数据。
4. 选择Cookies和站点数据(Site Data)以及缓存图像(Cached Images)和文件(Files)类别。
5. 点击清除。
在 Brave 中清除浏览器缓存
Brave允许您清除整个浏览器缓存或仅清除特定站点的本地缓存数据。
清除整个浏览器缓存
1. 打开勇敢(Brave)菜单（点击带有三个点的图标）。
2. 点击设置。
3. 点击勇敢的盾牌和隐私。
4.向下滚动(Scroll)到清除私人数据(Private Data)部分。
5. 打开Cache(Cache)和Cookies和Site Data旁边的开关。
6.点击立即清除数据
清除特定站点的缓存
1. 打开勇敢(Brave)菜单并点击设置。
2.点击 Brave Shields(Tap Brave Shields) & Privacy > Manage Website Data。
3. 向左滑动站点并点击垃圾箱(Trash)图标。
尽量避免放慢速度
完全清除本地网络缓存可能会导致速度变慢，因为您的浏览器必须从头开始重新下载所有站点数据。此外，您必须重新登录以前登录过的每个站点。
由于大多数浏览器在管理本地站点数据方面提供了很大的灵活性，因此您可以通过专注于单个站点或更短的时间范围来限制清除多少缓存来防止这种情况发生。您还可以在每个浏览器中使用内置的私人模式——例如，Safari 的私人标签(Safari’s Private tabs)或Chrome 的隐身模式(Chrome’s Incognito mode)——如果你想首先阻止它缓存站点数据。
How to Clear Every Browser Cache on iPhone and iPad
If your preferred web browser on the iPhone or iPad faіls to displаy sitеs correсtly or behaves unusually, the chances are that аn obsolete web cache is at play. Clearing it can help resolve the issυe since the action forces the browser to fetch uр-to-date site data in subsequent visits.
Read on to learn how to clear the cache on all major browsers—Apple Safari, Google Chrome, Mozilla Firefox, etc.—for the iPhone and iPad.
Clear Safari Cache on iPhone and iPad
If you use the native Safari browser on your iPhone or iPad, you’ve got multiple ways to delete its web cache. Go through them and pick the method that’s the most appropriate.
Clear Browser Cache via Safari
Safari’s History screen provides a built-in option to clear the entire browser cache or just recently cached site data.
1. Tap the Bookmarks icon in Safari.
2. Switch to the History tab (if it isn’t already selected by default) and tap Clear.
3. Pick a time frame to clear the browser cache. Available options include All time, Today and yesterday, Today, and The last hour.
Clear Browser Cache via Settings
Another way to clear the browser cache in Safari is to use the Settings app on iOS and iPadOS. Use it if the browser fails to load or crashes immediately at launch.
1. Open the Settings app on your iOS device.
2. Scroll down and tap Safari.
3. Scroll down and tap Clear History and Website Data > Clear History and Data.
Clear Cache By Site
If an issue is limited to a specific website, Safari provides a way to clear the cached data for that site only.
1. Open the Settings app and tap Safari.
2. Scroll down and tap Advanced > Website Data.
3. Swipe the website to the left and tap Delete.
Tip: You can also use the Remove All Website Data option at the bottom of the screen to delete the entire browser cache. Unlike the methods above, it will not delete your browsing history.
Do you keep encountering site-related issues with Safari on your Mac as well? Learn how to clear the cache, history, and cookies in Safari on Mac.
Clear Browser Cache in Google Chrome
When you use Google Chrome for web browsing on the iPhone or iPad, you can choose between completely clearing the browser cache and removing the cached data of a specific time range.
1. Open the Chrome menu (tap the icon with three dots).
2. Select Settings.
3. Tap Privacy > Clear Browsing Data.
4. Tap Time Range and pick a time frame—Last Hour, Last 24 Hours, Last 7 Days, Last 4 Weeks, or All Time.
5. Tap the categories next to Cookies, Site Data, and Cached Images and Files. Tap Browsing History if you also want to delete your browsing history.
6. Tap Clear Browsing Data.
Clear the Browser Cache in Mozilla Firefox
Mozilla Firefox for the iPhone and iPad allows you to clear the entire browser cache or the just cached data for specific sites only.
Clear the Entire Browser Cache
1. Open the Firefox menu (tap the icon with three stacked lines).
2. Tap Settings.
3. Tap Data Management.
4. Turn on the switches next to Cache, Cookies, and Offline Website Data.
5. Tap Clear Private Data.
Clear Cache for Specific Sites
1. Open the Firefox menu and tap Settings.
2. Tap Data Management.
3. Tap Website Data.
4. Tap to mark the site or sites you want to delete.
5. Tap Clear Items.
Clear the Browser Cache in Microsoft Edge
If you use Microsoft Edge on your iPhone or iPad, you can delete the browser cache or the cached data of pre-defined time ranges. The process is similar to clearing the cache in Google Chrome.
1. Open the Edge menu (tap the icon with three dots).
2. Select Settings.
3. Tap Privacy and security.
4. Tap Clear browsing data.
5. Tap Time Range and select a time frame—Last Hour, Last 24 Hours, Last 7 Days, Last 4 Weeks, or All Time.
6. Pick the Cookies and other site data and Cached images and data categories.
7. Tap Clear now.
Clear the Browser Cache in Opera
Clearing the cache in Opera on the iPhone or iPad is relatively straightforward compared to other browsers.
1. Open the Opera menu (tap the icon with three stacked lines).
2. Tap Settings.
3. Tap Clear Browser Data.
4. Pick the Cookies and Site Data and Cached Images and Files categories.
5. Tap Clear.
Clear the Browser Cache in Brave
Brave lets you clear the entire browser cache or just the locally cached data for specific sites only.
Clear Entire Browser Cache
1. Open the Brave menu (tap the icon with three dots).
2. Tap Settings.
3. Tap Brave Shields & Privacy.
4. Scroll down to the Clear Private Data section.
5. Turn on the switches next to Cache and Cookies and Site Data.
6. Tap Clear Data Now
Clear Cache for Specific Sites
1. Open the Brave menu and tap Settings.
2. Tap Brave Shields & Privacy > Manage Website Data.
3. Swipe a site to the left and tap the Trash icon.
Try to Avoid Slowing Things Down
Completely clearing the local web cache can cause slowdowns since your browser has to re-download all site data from scratch. Furthermore, you must sign into every site that you’ve previously logged into all over again.
Since most browsers offer a lot of flexibility in managing local site data, you can prevent that by limiting how much of the cache you clear by focusing on individual sites or shorter time ranges. You can also use the built-in private modes in each browser—e.g., Safari’s Private tabs or Chrome’s Incognito mode—if you want to stop it from caching site data in the first place.
