For SEO, the MozBar extension for Chrome is very useful and simplifies your work. Whether you’re putting together a comprehensive competitor analysis or simply reordering a few SEO elements on the page, the MozBar Chrome extension gives you a concise view of the data you need from web pages.
What Is MozBar?
MozBar is a browser extension for Google Chrome that follows you around the web and provides useful information about data for SEO purposes. MozBar is a widely used resource for SEO and digital marketing. The Chrome extension draws data from Moz’s database and provides it to you as you click and view different web pages. It is a huge help when it comes to page analysis, competitor research, metrics search, and ranking analysis in search results.
Paid and free: what’s the difference?
The MozBar SEO extension is available as a free download, but with limited functionality. Full access requires a Moz Pro account and includes access not only to MozBar’s full features but also to Moz’s entire suite of tools. However, for the most part, both the free and paid versions provide almost the same data and features, but there are two key differences:
- The free version only provides limited data on the backlinks profile of a web page
- Page Authority (PA) and Domain Authority (DA) metrics are always provided.
- MozBar also includes links to the Moz suite of tools, such as Open Site Explorer and Keyword Difficulty Tool. To fully use these tools you need a Moz Pro account.
Despite these shortcomings, the free version is definitely still extremely useful if you don’t have or don’t want a Moz Pro account. In particular, it still provides valuable information about page elements and can certainly help SEO professionals understand the authority of a web page and its domain.
How to install MozBar?
To use MozBar, you must first create a Moz account. Moz offers a free account, which will give you access to the basic features of MozBar. Purchasing a paid Moz subscription will allow you to use all of MozBar’s advanced tools, including Keyword Difficulty, Page Optimization, and Advanced Link Metrics.

To add the MozBar Chrome extension to your browser, simply visit the Chrome Web Store using Google Chrome and click “Add to Chrome”. Once you’ve added it to your browser and logged in using your Moz credentials, you’re good to go!
Once installed and launched, MozBar is accessible as a toolbar or as an overlay in the SERPs.
Tip: You can quickly turn MozBar on and off via your keyboard:
- On Mac try Cmd + Option + Control + M;
- on Windows use Shift + Ctrl + Alt + M.
With version 3, the toolbar has been assigned separate roles depending on whether you are viewing a web page or a SERP. The “Main Toolbar” includes domain authority and page metrics, as well as page analytics capabilities and obvious links. On the other hand, the “SERP Toolbar” allows you to create custom search profiles and export search results to a .csv file.
Authorities and metrics: How does MozBar work?

At the far right of the MozBar is the “Tools and Settings” section, accessible by clicking on the gear icon. From here, you can toggle between the Moz metrics you want to see in the toolbar in addition to Page Authority (PA) and Domain Authority (DA). You’ll also find a Moz Pro login button and links to Moz resources and tools.
- Domain Authority (DA) is a score developed by Moz that assigns a domain authority ranging from one to 100;
- Page Authority (PA) is a score developed by Moz that assigns authority to the page and ranges from one to 100;
- The Spam Score represents the percentage of sites penalized or banned by Google with characteristics similar to the site you are looking for. The Spam Score is based on a model that identifies 27 common attributes among the millions of banned or penalized sites.
Page or domain metrics
Page-level metrics report the authority of the specific web page. The toolbar provides page authority (PA) by default.
Primary domain metrics report domain authority, Domain Authority (DA), page authority, Page Authority (PA), and Spam Score. The data you provide is similar to page-level metrics, except that it applies to the entire domain. These metrics reflect the strength of the website as a whole, influencing ranking potential, competitive difficulty, and the value of backlinks from any page on the domain.
Link metrics
The toolbar can also show a count of the total links pointing to the webpage if you enable it. This is a collective number of all internal, external, follow and no follow links. Clicking on the count will take you to an Open Site Explorer analysis of the web page.
Thank you for reading and don’t forget to leave your doubts or questions in the comments below. Best of all, don’t forget to download MozBar and try it for yourself!