Introduction : Crome//Net-Internals/#Dns
Google Chrome is a powerful web browser known for its speed and efficiency. Among its various features, Chrome provides an in-depth set of tools for developers and advanced users through the “Net Internals” page. One of the key sections within this page is the DNS tab. This guide will explore what the Chrome Net Internals DNS page is, how it functions, and its importance for troubleshooting and optimizing network performance.
What is the Chrome Net Internals DNS Page?
The DNS (Domain Name System) tab within Chrome’s Net Internals is a diagnostic tool that provides detailed information about the DNS resolution process. DNS is crucial for converting human-readable domain names (like www.example.com) into machine-readable IP addresses. This conversion is essential for browsing the web, as it allows browsers to locate and connect to servers hosting the requested websites.
The Net Internals DNS page helps users and developers understand how Chrome handles DNS queries and provides insights into DNS resolution performance and issues.
Accessing the Net Internals DNS Page
To access the DNS page within Chrome’s Net Internals, follow these steps:
- Open Google Chrome: Launch the Chrome browser on your computer.
- Navigate to Net Internals: Type
chrome://net-internals/#dns
into the address bar and press Enter. This will take you directly to the DNS tab of the Net Internals page.
Key Features and Information on the DNS Page
The DNS tab in Chrome’s Net Internals offers several features and pieces of information that are valuable for troubleshooting and performance analysis. Here’s a breakdown of what you’ll find:
1. DNS Cache
- Overview: The DNS Cache section displays a list of DNS records that Chrome has cached. Caching DNS records helps speed up the resolution process by storing previously queried domain names and their corresponding IP addresses.
- Details: For each cached record, you’ll see details such as the domain name, IP address, and expiration time. This information can be useful for diagnosing issues related to DNS resolution and understanding how long specific records are kept.
2. Clear Cache
- Function: The “Clear host cache” button allows you to clear the DNS cache. This can be helpful when you encounter issues related to outdated or incorrect DNS records. Clearing the cache forces Chrome to re-query DNS records, ensuring that you get the most current information.
- Usage: Click the “Clear host cache” button to remove all cached DNS entries. This action may resolve issues with accessing websites if the DNS records have changed or become corrupted.
3. Host Resolver Cache
- Overview: The Host Resolver Cache section provides details about the internal DNS resolver used by Chrome. This cache stores resolved DNS queries, helping the browser quickly locate previously visited domains.
- Details: It displays information about each entry, including the domain name, IP address, and the time of resolution. This section is particularly useful for debugging DNS-related issues and understanding how Chrome’s internal DNS resolver is functioning.
When is it necessary to clear the DNS cache in Chrome?
Your browser stores DNS information in a cache to speed up future requests. However, this cached information can sometimes cause problems. Here are four scenarios when clearing the DNS cache in Chrome browser is necessary:
- DNS error messages: When you receive error messages related to DNS, such as “DNS_PROBE_FINISHED_NXDOMAIN” or “ERR_NAME_NOT_RESOLVED.”
- Websites not loading or loading slow: When websites are either not loading or are taking a long time to load.
- Inaccessible websites: When you can’t access certain websites, even though they work on other devices.
- Incorrect page display: When your browser’s pages are not displaying correctly or are missing content.
How to clear DNS cache in Google Chrome browser (Desktop and Android) using chrome://net-internals/#dns
The steps for clearing the DNS cache in Chrome are the same for desktop and Android devices.
- Launch a new tab: Open a new tab on your Chrome browser.
- Access DNS settings: Paste
chrome://net-internals/#dns
in the address bar and press Enter.
- Clear DNS cache: Click on the Clear host cache button.
If you need to clear the DNS cache on your operating system, refer to this article. It provides step by step guides on how to clear or flush the DNS cache on MS-Windows 7/8/10/11, Linux, and Mac OS.
If you need to clear the DNS cache on your iOS device (iPhone or iPad), refer to this Youtube video.
Conclusion
Clearing your DNS cache in Chrome can improve your browsing experience. Following our three steps, flushing your DNS cache regularly will ensure you have the most up-to-date information.