SniffTest Extension is built on the same privacy rules as the free web tool: no background snooping, no URL logging, no ad trackers.
Last updated: June 2026
🔍 Check on click only
📱 Stats on your device
🔐 URLs sent for checks, never stored
🔗 What we check
SniffTest Extension runs only when you take action: clicking an external link on Google or Bing search results, or choosing Sniff this page from the extension popup.
We do not scan pages in the background, read your emails, or monitor all browser traffic.
☁️ What we send to our servers
The URL you asked us to check, scored with the same pipeline as doasnifftest.com
Your subscription API token in the Authorization header, to verify you have access
The page you were on, search queries, email content, chat messages, or a browsing history
📱 What stays on your device
Protection stats (checks, warnings, blocks)
Recent activity list (domain names by default)
Cached check results (24 hours)
Your settings and allowlist
Your API token
Clear stats and cache anytime in extension Settings → Privacy.
🗄️ What we store on our servers
Account email and subscription status (via Stripe)
Hashed API tokens, never the full token after issuance
Daily check counts per subscription (for fair-use limits), not URLs
We never log the URLs or domains you check. The same promise as our free web tool.
🤝 Subprocessors
Cloudflare: API hosting and security-check infrastructure
Stripe: payments only; we never see card numbers
Resend: magic-link sign-in emails for account management
📊 Extension analytics
The extension includes no third-party analytics or advertising trackers.