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Instantly check if any website is safe or a scam. AI-powered verdict in seconds. **Is this site safe — or are you about to get scammed?** Signum scans any website you're visiting and gives you an instant AI-powered trust verdict. Powered by 15 threat intelligence sources, it tells you if a site is legitimate, suspicious, or a scam — in plain English. **Why Signum?** In 2024, people lost $12.5 billion to online scams. That's up 25% in a single year. Fake shops, phishing pages, and crypto fraud sites now look identical to legitimate websites. The padlock in your browser means nothing — it only confirms your connection is encrypted, not that the site is safe. Signum checks the signals that actually matter: → Domain age and registration history → SSL certificate validity and issuer trust level → IP neighbourhood — is the site hosted alongside known scam sites? → VirusTotal and 14 other threat databases → Brand impersonation detection via AI visual analysis → Certificate transparency logs → WHOIS and DNS anomalies → Social media presence verification → Payment page detection (crypto, suspicious checkout flows) **How it works** 1. Click the Signum icon while browsing any website 2. Press "Check this site" 3. Get an instant risk score (0-100), verdict, and plain-English explanation of every red flag found No technical knowledge required. Built for anyone who shops online, transfers money, or clicks links from emails. **What you'll see** • Risk score from 0-100 • Verdict: Likely Safe / Suspicious / Danger • Warning banner for high-risk sites • Key findings explaining exactly what's wrong • One-click access to the full detailed report **Who uses Signum** → Online shoppers verifying new stores before paying → Business owners vetting suppliers and vendors → Anyone who received a suspicious link by email or message → IT teams checking domains reported by employees → Parents protecting family members from scams **Free to use. No account required.** Signum is free for basic scans. No personal data collected, no browsing history stored. We only scan the domain you explicitly request — nothing happens automatically.
Mar 26, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.