Suppression Checker

Upload Excel files and quickly search email patterns using domains

As of June 2026, Suppression Checker has 9 users and a 5.00/5 rating from 2 reviews in the Workflow & Planning category.

Usersno change0%
9
9
Ratingno change0%
5.00
2 reviews
Reviewsno change0%
2
Version
2.3.7
Manifest V3
90-day change · In the last 90 days this extension 2 version updates.

History

6 snapshots

Tracking since Apr 4, 2026.

16.64127.359999999999999Apr 4, 2026Jun 12, 2026
View as table
DateUsersRatingReviewsVersion
Apr 4, 20265.0022.3.1
Apr 17, 2026165.0022.3.6
Apr 23, 2026115.0022.3.6
Apr 28, 202685.0022.3.6
May 11, 2026105.0022.3.7
May 16, 20265.0022.3.7
Now95.0022.3.7

Changelog

  • Apr 4, 2026
    short_description
    Upload Excel files and quickly search email patterns using domains.
    Upload Excel files and quickly search email patterns using domains

Permissions & access

Permissions
storage
Host access
https://www.linkedin.com/*

Screenshots

Suppression Checker screenshot 1Suppression Checker screenshot 2Suppression Checker screenshot 3Suppression Checker screenshot 4

About

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.

Technical

Version
2.3.7
Manifest
V3
Size
335KiB
Min Chrome
110
Languages
1
Featured
No

Metadata

ID
odcpgbflbflcjecoiiljfplhjeekmbmm
Developer ID
u8655ccc66927de23d4e323c21c3a207a
Developer Email
[email protected]
Created
Mar 8, 2026
Last Updated (Store)
Apr 23, 2026
Last Scraped
Jun 12, 2026
Website
Support URL

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Data sourced from the Chrome Web Store · last verified Jun 12, 2026.