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Extension Documentation

Everything you need to know about setting up and using the IsThisSpam Chrome Extension.

Table of Contents

1Installation & Setup

Getting started with IsThisSpam is easy. Our extension is available on the Chrome Web Store and works with Chrome, Edge, Brave, and other Chromium-based browsers.

  1. Visit the Chrome Web Store page.
  2. Click Add to Chrome.
  3. Confirm the installation by clicking Add Extension.
  4. Once installed, pin the extension to your toolbar for easy access by clicking the puzzle piece icon and then the pin icon next to IsThisSpam.

2Email Scanning

IsThisSpam integrates directly into your webmail provider to scan emails as you open them.

Supported Providers

  • GmailGmail
  • OutlookOutlook.com
  • Y!Yahoo Mail

How it works

When you open an email, a small "Scan" button (or automatic scan depending on settings) will appear. Clicking it sends the email content to your configured AI provider for analysis.

Note: We only scan the currently open email. We do not scan your entire inbox or read emails in the background.

3Website Scanning

The Universal Website Scanner allows you to check the safety of any webpage you are currently visiting.

  • Passive Protection: The extension automatically checks domains against known blocklists.
  • Active Scanning: Click the extension icon and select "Scan Website" to perform a deep AI analysis of the page content.

This is particularly useful for:

  • Verifying online shops before purchase
  • Checking login pages for phishing signs
  • Analyzing suspicious news or crypto sites

4AI Configuration

IsThisSpam is unique because it lets you choose who analyzes your data. Go to Extension Settings > AI Settings to configure this.

Option A: IsThisSpam Servers (Recommended)

Best for: Ease of use, Privacy

Available to Email Pro and Ultimate subscribers. We use secure, private enterprise instances of Azure OpenAI. Your data is never used for training.

Option B: Google Gemini (Free)

Best for: Free users

You can use your own Google Gemini API key.Get a free key here.

Note: Google may use data from free API keys to improve their products.

Option C: Ollama (Local & Private)

Best for: Maximum Privacy, Tech Savvy users

Run the AI entirely on your own computer. No data ever leaves your device.

  1. Download and install Ollama.
  2. Run ollama run mistral in your terminal.
  3. Ensure Ollama is running (default port 11434).
  4. Select "Ollama" in the extension settings.

5Account & Subscription

You can manage your subscription directly within the extension.

Free Tier

  • 10 Scans / month
  • Basic Website Checks
  • Community Support

Email Pro

  • Unlimited Email Scans
  • IsThisSpam AI Servers
  • Priority Support

Ultimate

  • Everything in Pro
  • Unlimited Website Scans
  • Advanced Threat Intel

6Privacy & Security

Your privacy is our top priority.

  • No Tracking: We do not track your browsing history.
  • On-Demand Scanning: We only analyze content when you explicitly ask us to.
  • Local Processing: If you use Ollama, your data never leaves your computer.
  • Secure Cloud: If you use our servers, data is processed in secure Azure instances and not retained for training.

7Troubleshooting

Extension says "Not Signed In"

Click "Manage Account" in the settings and sign in again. If the issue persists, try reloading the extension by going to chrome://extensions, toggling Developer Mode, and clicking "Update".

AI Analysis failed

Check your API key if using Gemini/OpenAI. If using Ollama, ensure the server is running. If using IsThisSpam servers, check your internet connection.

Scan button not appearing

Refresh the page. Ensure you are on a supported email provider (Gmail, Outlook, Yahoo). Some ad-blockers may interfere; try disabling them for your email tab.

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