Add a URL query string to your images & links that are in your email signature.
A query string is a way to pass values on a URL link without affecting the webpage it opens. The query string is appended to the end of the URL after a '?'
For example, this URL: https://revgabba.com/scrappy-martech-newsletter?src=smi4 has a query string of src=smi4. If this link gets clicked, I will be able to see it was from the source Scrappy MarTech Issue 4.
1. Define what you want to use to identify a click on your email signature. For example "source=email_signature".
2. Append a question mark "?" and the parameter to the end of your link. For example "myblog.com/home?source=email_signature".
3. Use this link in your email signature as the target URL.
4. You will be able to see clicks to this link in Google Analytics under the site content pages report.
Google Analytics has built-in parameters for source, medium, campaign, term, and content. You could set up the Google Analytics query string parameters to work seamlessly with GA reports, as if it were a Google Adwords campaign.
A typical email signature set up could be:
utm_source = "email_signature"
utm_medium = "email"
utm_campaign = "subscribe_now"
This would create a query string of:
For more information on how to set these up, check out Google's documentation.