Google Search Console Update: 2021 Custom Regex and Comparison Improvements


Google Search Console is designed to improve the way, we as marketers analyze data. As a B2B business, we consistently use Search Console to assess our keyword performance growth based on the page or location. Google Search Console’s recent update released a new filter that allows us to search for regular expression (custom regex) queries.

With this new query filtering method, Google released an increased comparison mode. This mode will allow for more than one metric to be compared at the same time.

Regular Expression Filters

Prior to this release, the query filters consisted of queries containing, queries not containing, and exact query. When using the query filter, we can narrow down one keyword we have been looking for, or compare keywords based on their clicks, impressions, CTR, and average position (rank).

Custom regex filters allow us to be more complex with search queries leading our users to the site. Prior to this release, we were not able to narrow down search queries based on a complex structure.

Search Console New Filters

While using custom regex filters, there are characters to know to properly search:

  • The option to partially match regular expressions will always be the target of the string unless the characters ^ or $ are used, suggesting the expression is exact from start to finish.
  • Case sensitive matching occurs when “(?i)” at the beginning of the custom regular expression. An example of this case sensitive matching: (?i)
  • If these characters are not used, then Search Console will not provide any matches to the custom regex.

Increased Comparison Mode

Search Console’s comparison mode can answer query questions by showing the difference in clicks, impressions, CTR, and average position (rank). Prior to this release, Search Console would not provide a “difference” column if there was more than one metric selected.

When more than one metric – clicks, impressions, CTR, and average position (rank) – are selected, the table expands and provides the difference for each of the metrics.

The comparison mode works alongside the custom regex filter. Both updates provide B2B businesses with an increased amount of insight into your target audience. Website traffic increases come from figuring out keyword target growths.


We continue to use Google Search Console’s updates and platform, for all our client’s keyword performance growth. If you are interested in learning more about Google Search Console’s update or need SEO keyword assistance, reach out and we’d be happy to assist.