See the details of over half a million mailing lists, before you give them your email address.
Available for Chrome and Firefox
Whether you're trying to stay productive, or striving for inbox zero, the best solution is to only give your email to people you trust.
Our browser plugin identifies mailing lists used by the webpage you're visiting, and lets you know their reputation before you hand over your email address.
If you start signing up for a site with a bad score we’ll show you an alert to make sure you definitely don’t mind joining their mailing list.
Available with monthly or yearly billing. Change or cancel your plan at any time.
Looking to buy licences in bulk? Get in touch.
My email account used to get cluttered a lot, but now I can make sure I only subscribe to quality mailing lists.
It's helpful. As a newsletter writer I can benchmark myself against the competition and check out the industry.
Seeing real data from a website's emails means that I cut down on spam before it even reaches my inbox!
It saved me a lot of unsubscribing in the future! You should get this tool if you value your inbox.
We look at various details of a mailing list, such as email frequency, how many people choose to unsubscribe from it using Leave Me Alone, how easy it is to unsubscribe from, and various other statistics. It is then measured up against all others and given a percentile rank between F and A+.
The Subscription Score extension currently works with Chrome and Firefox. If we get requests for other browsers then we will create extensions them in future.
Request support for a browser →
Our scores are generated from usage data from our other project Leave Me Alone, which allows users to easily unsubscribe from subscription emails.
Try Leave Me Alone →
Maybe! We'll try and keep Subscription Score as lean and simple as possible, but if you have a good feature in mind then let us know!
Request a feature →