Tools
Stable signalUnknownMedium-risk permissions
SpamChecker icon

SpamChecker

Local-first phishing signals for Gmail.

Users0Current public install base
Rating--Store average score
Reviews0Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate--Relative weekly velocity
Preview

SpamChecker Media preview

3 assets
Trend

30-day user trend

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User Growth Over Time

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Growth overview

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Technical snapshot

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Version0.1.0
ManifestV3
Size2.67MiB
Languages1English (United States)
Published
Store updated
Last crawled
English (United States)
Overview

Product summary

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SpamChecker analyzes every email you open in Gmail and gives you an instant danger rating — so you know whether to trust a message before you click anything.

Gmail's built-in spam filter works at the server level and gives you no visibility into why a message looks suspicious. SpamChecker fills that gap by running a deep local analysis on every email you open, right in your browser. Nothing is ever sent to external servers.

What SpamChecker checks:

Email authentication — SPF, DKIM, and DMARC pass/fail status

Sender analysis — From/Reply-To mismatches, domain spoofing signals

Routing analysis — hop count, unusual relay paths, origin country

Reviews

Recent review snapshot

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