Upload Excel files and quickly search email patterns using domains
Users
9
0 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#200K
#167K among extensions
Version
2.3.7
updated 23 Apr 2026
Users
monthly, 7 months
Latest, 17 Oct 2026:9 usersMove the mouse over the chart for any month
Ratings count
monthly, 7 months
Latest, 17 Oct 2026:2 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Suppression Checker
Suppression Checker is a productivity tool designed to help professionals quickly identify, verify, and analyze email patterns using Excel data, domain searches, and LinkedIn profiles.
The extension allows users to upload Excel files containing contact data and instantly search for email patterns based on names and domains. A built-in 24-hour caching system ensures faster lookups for previously loaded datasets.
This tool is particularly useful for sales teams, researchers, recruiters, and data analysts who frequently work with contact databases and need to validate email information efficiently.
Key Features
Excel Data Upload
Users can upload an Excel file containing email records. The extension processes the file locally and allows users to select the relevant column they want to use for results.
Name or Email Search
Users can search using either a prospect name or an email address. Combined with a company domain, the extension generates and searches for matching email patterns.
Domain-Based Search
By entering a company domain, the extension can generate possible email combinations associated with that domain and match them against the uploaded dataset.
LinkedIn Profile Integration
When browsing a LinkedIn profile, users can click the LinkedIn button inside the extension. The extension will automatically detect the profile name and perform a domain-based email pattern search.
Multiple Email Generation
Users can generate multiple possible email combinations for a given domain and verify them against the uploaded Excel dataset.
Suppression Check
Users can paste multiple emails at once and check whether they exist within the uploaded suppression list.
Data Reset
A quick reset button allows users to clear the input fields and start a new search.
Smart 24-Hour Cache
Uploaded Excel files are cached locally for 24 hours, allowing faster searches without needing to re-upload the dataset.