Deleting Cache (Temporary Files/Data)

1. From within Microsoft Edge (formerly Project Spartan), click the (More actions) button in the upper-right corner.
2. Click Settings.
3. Below Clear browsing data, click Choose what to clear.
4. Select Cached data and files and any other options you'd like.
5. Click Clear at the bottom of the list.

• Method 1: If Internet Explorer is open
  1. From within Internet Explorer, click on the (Tools) button in the upper-right corner of Internet Explorer (or click the Tools menu item) then click Internet Options.
  2. From within the General tab, click the Delete... button in the Browsing history section.
  3. Select Temporary Internet files and website files and any other options you'd like.
     See Manage and delete your browsing history for descriptions of the various options.
  4. Click the Delete button. You will see a progress indicator during the deletion process which may take a few seconds to several minutes to complete.
• Method 2: If Internet Explorer is not open
  1. Open the Windows Control Panel:
     • Windows 10, 8.1: Press +X on the keyboard (or right-click the (Start) button in Desktop mode) to display the Quick Link menu, then click Control Panel.
     • Windows 7, Vista: Click the (Start) button then click Control Panel on the right.
     • Windows XP: Click the Start button (then Settings if it exists) then Control Panel.
  2. From within the Control Panel, click or double-click Internet Options. If you are viewing the Control Panel in Category View, you will need to click Network and Internet before you see Internet Options.
  3. From within the General tab, click the Delete... button in the Browsing history section.
  4. Select Temporary Internet files and website files and any other options you'd like.
     See Manage and delete your browsing history for descriptions of the various options.
  5. Click the Delete button. You will see a progress indicator during the deletion process which may take a few seconds to several minutes to complete.

The instructions below are based on Firefox 60 for Windows, released 2018-05-09. Firefox Releases

1. From within Firefox, click the (View history, saved bookmarks, and more) button in the upper-right.
2. Click History.
3. In the History section, click the Clear Recent History...
4. Select a time range to clear and click the down-arrow next to Details (if the details are not already shown).
5. Select Cache and any other options you'd like.
6. Click the Clear Now button.

The instructions below are based on Chrome 62 for Windows, released 2017-11-13. Chrome Releases

1. From within Chrome:
   • Method 1: Click the button in the upper right then click History
   • Method 2: Type chrome://history into the Address field at the top and hit Enter on the keyboard.
   • Method 3: Press Ctrl+H on the keyboard.
2. Select a timeframe to delete the data.
3. Click Clear browsing data on the left.
4. Select Cached images and files and any other options you'd like (click the Learn more link for more information).
5. Click the CLEAR BROWSING DATA button.

The instructions below are based on Chrome 62 for Android 6.0.

1. From within Chrome, tap the vertical elipses to the right of the address (URL) field, then tap History.
2. Tap CLEAR BROWSING DATA... at the bottom of the screen.
3. Select Cached images and files and any other options you'd like.
4. Tap CLEAR DATA.

Mac

• Safari 8
  See Safari 8 (Yosemite): Clear your browsing history for information on what is deleted.
  • From within Safari, click History at the top then Clear History and Website Data... at the bottom of the list.
  • Select a timeframe to delete data.
  • Click Clear History.
• Safari 7
  • Method 1:
    1. From within Safari, click Safari, then Preferences.
    2. Click the Advanced section.
    3. Select Show Develop menu in menu bar.
    4. Click Safari, then Develop, then Empty Caches.
  • Method 2:
    1. From within Safari, click Safari, then Preferences, then Privacy.
    2. Select the appropriate options (see Safari 7: Privacy pane of Safari preferences for more information).
• Safari 6
  1. From within Safari, click Safari, then Preferences.
  2. Click the Privacy section.
  3. Click Details.
  4. Select the appropriate data to be deleted and click Remove or Remove All.
  5. Click Done.
• Safari 5.1
  1. From within Safari, click Safari then Empty Cache.
  2. Click Empty.

iOS (iPhone / iPad / iPod Touch)

The following instructions are based on iOS 9.2.1:

1. Go into the device's main Settings.
2. Tap Safari.
3. Scroll down and tap Advanced.
4. Tap Website data.
5. Tap Remove All Website Data.
6. Tap Remove Now.

The following instructions are based on iOS 9.1 & 8.4:

1. Go into the device's main Settings.
2. Tap Safari.
3. Scroll down and tap Clear History and Website Data.
4. Tap Clear History and Data.

Many Internet-related programs (web browsers, email programs, etc.) have their own built-in DNS cache, unrelated to the DNS cache handled at the operating system level. Simply restarting the program will normally clear its own cache, however doing so will have no effect on DNS cache at the operating system level. Before clearing the DNS cache at the operating system level, close any Internet-related programs.

• Windows:
  1. Press +R on the keyboard to bring up the Run prompt.
  2. Type cmd (automatically overwrites any highlighted text in the field) and press Enter on the keyboard.
  3. In the Command Prompt window, type ipconfig /flushdns and press Enter on the keyboard.
• Mac:
  1. From the Apple menu, click About this Mac to determine the OS X version installed.
  2. Open Applications, then Utilities, then Terminal.
  3. OS X 10.9 (Mavericks): Type dscacheutil -flushcache;sudo killall -HUP mDNSResponder and press Enter on the keyboard.
     OS X 10.8 (Mountain Lion), 10.7 (Lion): Type sudo killall -HUP mDNSResponder and press Enter on the keyboard.
     OS X 10.6 (Snow Leopard), 10.5 (Leopard): Type sudo dscacheutil -flushcache and press Enter on the keyboard.

Although individual routers, DSL modems, and cable modems may have ways of clearing their own DNS cache (depending on model, firmware/software versions, etc.), there are far too many possibilities to address here.
Reboot (power-cycle) the device to clear its internal DNS cache. If the device lacks a power switch, unplug the power cord and plug it back in.

• DNS in Windows Server:
  • Method 1:
    1. Open a command prompt (elevated command prompt in Windows Server 2008 and later).
    2. Type dnscmd /clearcache and press Enter.
       Note: This clears all DNS server cache; The dnscmd.exe command does not support clearing individual DNS cache entries (e.g. .(root)\com\example, representing the entire example.com domain).
  • Method 2:
    1. Open Administrative Tools then DNS.
    2. From within the DNS Manager, click View and click Advanced if it's not already checked.
    3. Expand the appropriate DNS server.
    4. To clear everything in the DNS cache:
       1. Right-click Cached Lookups and select Clear Cache.
       To clear individual items in the DNS cache:
       1. Expand Cached Lookups and any zones/subzones within it until you find what you want to clear.
       2. Right-click the entity and select Delete (or click the entity and hit Del.
          Tip: Click View then Filter... to isolate items (e.g. looking for example within com, etc.).
• ISC Bind
  • Bind 9.3.0 and later: Type rndc flush and press Enter to clear all DNS server cache.
    Type rndc flushname example.com and press Enter to clear all DNS server cache related to the example.com domain.
  • Bind older than 9.3.0: Type rndc restart or rndc exec to restart Bind.