System Running Slow — Clear Cache to Improve Performance

Modified on Tue, 28 Oct at 12:36 PM

How to Clear Site Cache in Google Chrome

Clearing your browser’s site cache can help fix issues like pages not loading correctly, buttons not working, or old information still showing after updates.


Why this helps

When you visit a website, Chrome saves parts of the page (like images or code) to help it load faster next time. Sometimes this saved data becomes outdated or conflicts with new updates, which can cause the site to act up Clearing the cache lets Chrome load the newest version of the website, often fixing display or loading problems.

Steps to Clear Site Cache

  1. Open Google Chrome.

  2. Click the dots to the left of the PortPro URL

  3. Select Settings Settings

  4. Click Delete data.

  5. Close and reopen Chrome, then reopen PortPro.



Clearing Your DNS Cache

Sometimes, pages in PortPro (or other web-based systems) can load slowly or have difficulty showing information. One common cause is a cached DNS record — in simple terms, your computer may be holding onto an old “map” of where the system lives online.


Clearing (or “flushing”) your DNS cache refreshes this map so your computer can connect directly to the latest, most accurate version of the site. This often helps resolve issues like:

  • Pages taking longer than usual to load

  • Data not appearing or showing outdated values

  • Errors when trying to access certain areas of the platform


How to Clear Your DNS Cache

For Windows

  1. Click the Start menu and type cmd.

  2. Right-click Command Prompt and select Run as administrator.

  3. In the window that opens, type:

    ipconfig /flushdns
  4. Press Enter.

  5. You’ll see a message confirming that the DNS cache has been cleared.


For Mac

  1. Click the Spotlight Search (magnifying glass) and type Terminal.

  2. Open Terminal.

  3. Type the following command and press Enter:

    sudo killall -HUP mDNSResponder
  4. Enter your computer password if prompted.

For Google Chrome Browser

If you prefer to refresh just your browser DNS:

  1. In Chrome, go to:

    chrome://net-internals/#dns
  2. Click Clear host cache.

  3. Restart your browser and try reloading the page.

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