It gives you instant access to the following Page and Domain metrics:
Domain Rating (DR);
URL Rating (UR);
Estimated Organic Search Traffic (ST);
Number of ranking keywords (KW);
Number of referring domains (RD);
Number of backlinks (BL).
You can see all of these metrics right below every page ranking for the keyword you're searching for.
In addition to this, Ahrefs SEO Toolbar will show you the most important keyword metrics right on the SERP:
Search volume (both Global and Country-specific);
Keyword Difficulty (KD);
Cost per Click (CPC).
Installing the Toolbar
Installing the toolbar is easy.
For Chrome users, head to this link and install it.
For FireFox users, head to this link and install it.
Using the Toolbar
The SEO toolbar is a part of Ahrefs toolset. You need an active account at ahrefs.com in order to use most of the features. We also offer few free features in our most recent Ahrefs SEO Toolbar v.2.3.0 release (scroll down to the next section for more information).
Please also note that using the SEO toolbar will spend your relevant Ahrefs account credits:
It takes one “Batch analysis, rows” credit to show the full set of metrics for a web page. So, displaying the data for the top 10 pages in the SERP costs ten credits accordingly.
Do also note that each time the toolbar shows you keyword data, it costs you one “Rows per month” credit from the Keywords Explorer section.
No credits will be spent if you switch the toolbar to standby mode (by clicking on the toolbar icon that turns grey):
(The number shown is the DR of the site.)
Also, showing the DR on the SEO toolbar icon spends no credits from your account.
What features are free?
Below are some free features without Ahrefs subscription.
On-page SEO report including details about page titles, descriptions, canonicals, hreflangs, sub-headers, crawl-ability/index-ability, social tags, etc. is free.
Broken link checker is free.
Outgoing links count is free.
If you still have issues with installing or using the toolbar, please contact Ahrefs Support for help.