Google Chrome Commands

  • chrome://settings/searchEngines: Opens the Search engines pop-out interface, which allows you to change the browser’s default search engine, edit individual search strings and remove engines which are currently installed.
  • chrome://settings/clearBrowserData: Opens the Clear browsing data dialog, which allows you to delete browsing history, download history, cache, cookies, saved passwords, other browsing data, and licenses for protected content — all from a user-specified time interval. For more information about these data components, visit our in-depth tutorial.
  • chrome://settings/autofill: Opens the Autofill settings pop-out window, which displays all street addresses and credit cards currently stored by Chrome for autocomplete purposes. Within this interface, you can view, edit or remove existing autofill data as well as manually add new entries.
  • chrome://downloads: Displays Chrome’s download history which contains icons, filenames, and URLs associated with each file within the log. Alongside each file are links to delete the entry from the download list as well as open the folder where it is located.
  • chrome://extensions: Displays all browser extensions currently installed including name, icon, size, version number, and permissions data for each. You can toggle extensions off and on as well as instruct Chrome whether or not to allow each to run while the browser is in Incognito Mode.
  • chrome://bookmarks: Opens the Bookmark Manager, which displays all of your stored Web pages organized by folder and title. You can add, edit or remove bookmarks on this screen as well as import and export them via HTML files.
  • chrome://history: Displays your browsing history, categorized by date and searchable via this screen. Also provided is the ability to remove individual items from this log as well as access to the Clear Browsing Data interface.
  • chrome://memory: Provides both private and proportional memory metrics for Chrome, broken down by extensions, tabs, plugins, and other related processes.
  • chrome://dns: When you click on a link, DNS resolution takes place which can slow down the page load process. DNS prefetching resolves embedded links in advance so that things move faster if and when you eventually click on one. This Chrome command displays prefetching information including hostname, page load count, and the time of last resolution.
  • chrome://cache: Displays links to all files currently residing in the browser’s cache. Clicking on one of these links displays detailed information about the file itself including the dates it was initially stored and last updated.
  • chrome://chrome: Displays version information of your browser as well as firmware and platform details on Chrome OS. You can also check for and install Chrome updates from this screen.
  • chrome://crashes: Displays detailed information about recent crashes of the browser. This command only works as expected if crash reporting is enabled in Chrome, which can be done through its Privacy settings.
  • chrome://flash: Displays detailed information about the current Adobe Flash installation being utilized by Chrome including plugin versions, shader and renderer data.
  • chrome://gpu: Provides a wealth of information about your system’s graphics card(s) and settings including driver specifications, hardware acceleration data, and workarounds for conflicts and other related problems detected by Chrome.
  • chrome://histograms: Displays dozens of in-depth visual interpretations of browser statistics accumulated from the time you launched Chrome to the most recent page load.
  • chrome://keyboardoverlay: Displays a graphical representation of a keyboard, which shows which keys are mapped to various keyboard shortcuts by hitting the AltCtrl and Shift keys.
  • chrome://network: (Chrome OS only) Displays detailed information about the current network you are connected to as well as others which are in range and those you have accessed the most in previous sessions.
  • chrome://system: Displays comprehensive system diagnostic data, including details about your operating system, BIOS, and various hardware components. The amount of data available is dependent on your particular operating system.
  • chrome://thumbnails: Displays thumbnail preview images, when available, and URLs of the websites that you visit the most.
  • chrome://flags: Allows you to enable/disable dozens of experimental features, some of which are platform-specific. Each feature set includes a brief description as well as a link to toggle it on and off. The key word here is experimental, and it is highly recommended that only advanced users tamper with these settings.
  • chrome://net-internals: Allows you to view all networking events captured by Chrome in real-time, as well as export all relevant data to a file.
  • chrome://quota-internals: Provides details on the amount of disk space allotted for and currently being used by Chrome, including how much each individual site is occupying in the browser’s cache.
  • chrome://voicesearch: Displays current details about Chrome’s Voice Search feature including language settings, microphone status and much more.

Free & Public DNS Servers

Free & Public DNS Servers (January 2018)

Provider Primary DNS Server Secondary DNS Server
Comodo Secure DNS
OpenDNS Home6
Norton ConnectSafe7
Alternate DNS12
Hurricane Electric15

 Primary DNS servers are sometimes called preferred DNS servers and secondary DNS servers are sometimes called alternate DNS servers. Primary and secondary DNS servers can be “mixed and matched” to provide another layer of redundancy.

In general, DNS servers are referred to as all sorts of names, like DNS server addressesinternet DNS serversinternet serversDNS IP addresses, etc.

Why Use Different DNS Servers?

One reason you might want to change the DNS servers assigned by your ISP is if you suspect there’s a problem with the ones you’re using now. An easy way to test for a DNS server issue is by typing a website’s IP address into the browser. If you can reach the website with the IP address, but not the name, then the DNS server is likely having issues.

Another reason to change DNS servers is if you’re looking for a better performing service. Many people complain that their ISP-maintained DNS servers are sluggish and contribute to a slower overall browsing experience.

Yet another, increasingly common reason to use DNS servers from a third party is to prevent logging of your web activity and to circumvent the blocking of certain websites.

Know, however, that not all DNS servers avoid traffic logging. If that’s what you’re after, make sure you read all the details about the server to know if that’s the one you want to use.

Follow the links in the table above to learn more about each service.

Finally, in case there was any confusion, free DNS servers do not give you free internet access! You still need an ISP to connect to for access – DNS servers just translate IP addresses and domain names so that you can access websites with a human-readable name instead of a difficult-to-remember IP address.

Verizon DNS Servers & Other ISP Specific DNS Servers

If, on the other hand, you want to use the DNS servers that your specific ISP, like Verizon, AT&T, Comcast/XFINITY, etc., has determined is best, then don’t manually set DNS server addresses at all – just let them auto assign.

Verizon DNS servers are often listed elsewhere as,,,, and/or, but those are actually alternatives to the Level 3 DNS server addresses shown in the table above. Verizon, like most ISPs, prefers to balance their DNS server traffic via local, automatic assignments. For example, the primary Verizon DNS server in Atlanta, GA, is and in Chicago, is

The Small Print

Don’t worry, this is good small print!

Many of the DNS providers listed above have varying levels of services (OpenDNS, Norton ConnectSafe, etc.), IPv6 DNS servers (Google, DNS.WATCH, etc.), and location specific servers you might prefer (OpenNIC).

While you don’t need to know anything beyond what I included in the table above, this bonus information might be helpful for some of you, depending on your needs:

[1] The free DNS servers listed above as Level3 will automatically route to the nearest DNS server operated by Level3 Communications, the company that provides most of the ISPs in the US their access to the internet backbone. Alternatives include,,,,, and These servers are often given as Verizon DNS servers but that is not technically the case. See discussion above.

[2] Verisign says this about their free DNS servers: “We will not sell your public DNS data to third parties nor redirect your queries to serve you any ads.” Verisign offers IPv6 public DNS servers as well: 2620:74:1b::1:1 and 2620:74:1c::2:2.

[3] Google also offers IPv6 public DNS servers: 2001:4860:4860::8888 and 2001:4860:4860::8844.

[4] Quad9 uses real time information about what websites are malicious and blocks them completely. No content is filtered – only domains that are phishing, contain malware, and exploit kit domains will be blocked. No personal data is stored. An unsecure pubic DNS is also available from Quad9 at but they do not recommend using that as the secondary domain in your router or computer setup. See more in the Quad9 FAQ.

[5] DNS.WATCH also has IPv6 DNS servers at 2001:1608:10:25::1c04:b12f and 2001:1608:10:25::9249:d69b. In an uncommon but much-appreciated move, DNS.WATCH publishes live statistics for both of their free DNS servers. Both servers are located in Germany which could impact performance if used from the US or other remote locations.

[6] OpenDNS also offers DNS servers that block adult content, called OpenDNS FamilyShield. Those DNS servers are and A premium DNS offering is also available, called OpenDNS Home VIP.

[7] The Norton ConnectSafe free DNS servers listed above block sites hosting malware, phishing schemes, and scams, and is called Policy 1. Use Policy 2 ( and to block those sites plus those with pornographic content. Use Policy 3 ( and to block all previously mentioned site categories plus “mature content, crime, drugs, gambling, violence” and more. Be sure to check out the list of things blocked in Policy 3 – there are several controversial topics in there that you may find perfectly acceptable.

[8] GreenTeamDNS “blocks tens of thousands of dangerous websites which include malware, botnets, adult related content, aggressive/ violent sites as well as advertisements and drug-related websites ” according to their FAQ page. Premium accounts have more control.

[9] Register here with SafeDNS for content filtering options in several areas.

[10] The DNS servers listed here for OpenNIC are just two of many in the US and across the globe. Instead of using the OpenNIC DNS servers listed above, see their complete list of public DNS servers here and use two that are close to you or, better yet, let them tell you that automatically here. OpenNIC also offers some IPv6 public DNS servers.

[11] FreeDNS says that they “never log DNS queries.” Their free DNS servers are located in Austria.

[12] Alternate DNS says that their DNS servers “block unwanted ads” and that they engage in “no query logging.” You can sign up for free from their signup page.

[13] Yandex’s Basic free DNS servers, listed above, are also available in IPv6 at 2a02:6b8::feed:0ff and 2a02:6b8:0:1::feed:0ff. Two more free tiers of DNS are available as well. The first is Safe, at and, or 2a02:6b8::feed:bad and 2a02:6b8:0:1::feed:bad, which blocks “infected sites, fraudulent sites, and bots.” The second is Family, at and, or 2a02:6b8::feed:a11 and 2a02:6b8:0:1::feed:a11, which blocks everything that Safe does, plus “adult sites and adult advertising.”

[14] UncensoredDNS (formerly DNS servers are uncensored and operated by a privately funded individual. The address is anycast from multiple locations while the one is physically located in Copenhagen, Denmark. You can read more about them here. IPv6 versions of their two DNS servers are also available at 2001:67c:28a4:: and 2a01:3a0:53:53::, respectively.

[15] Hurricane Electric also has an IPv6 public DNS server available: 2001:470:20::2.

[16] puntCAT is physically located near Barcelona, Spain. The IPv6 version of their free DNS server is 2a00:1508:0:4::9.