Checks whether AI agents can see and understand your website, plus AI-powered scam and trust scans.
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What is AI Checker by Signum.AI?
Check if AI agents can see your website for free
AI Checker by Signum.AI answers two questions fast: can AI agents see your website, and can you trust a website before you pay? Paste any URL and get an AI visibility check plus a trust intelligence verdict in seconds.
Signum runs 15+ checks in parallel — VirusTotal, Google Safe Browsing, SSL analysis, WHOIS, Wayback Machine, Trustpilot, Shodan and more — and synthesises them with AI into a 0–100 risk score and a plain-English Safe / Caution / Danger verdict. A free Chrome extension warns you in real time, and business plans add vendor vetting, monitoring alerts and team access.
Free to start (3 scans, no account); Pro is €3.99/month.
Platforms and languages
AI Checker by Signum.AI Availability
Platforms
Languages
Capabilities
AI Checker by Signum.AI Key Features
AI visibility check
Paste any URL and see in seconds whether AI agents can see and understand your website.
Trust score and verdict
A 0–100 risk score plus a plain-English Safe / Caution / Danger verdict on any domain.
15+ threat sources
VirusTotal, Google Safe Browsing, IPQS, AbuseIPDB, SSL analysis, WHOIS, Wayback Machine, Trustpilot, Shodan and more — synthesised by AI.
Chrome extension
Free extension that checks every site you visit in real time and warns before you interact with high-risk domains.
Email header analysis
Paste raw email headers to check SPF, DKIM, DMARC and routing for phishing attempts.
Business vetting
Vendor vetting, ongoing domain monitoring with alerts, and team access for procurement workflows.
Best for
Who uses AI Checker by Signum.AI?
Website owners
Check if AI agents can see and understand their site
Shoppers
Verify a website is safe before paying or sharing data
Procurement teams
Vet vendors and partners before engaging
Plans and access
AI Checker by Signum.AI Pricing
Freemium
Free: 3 scans, then free account. Pro €3.99/mo; API €29.99/mo.
Common questions
AI Checker by Signum.AI FAQs
Is Signum free?
Yes. The first 3 scans need no account; a free account unlocks continued access. Pro (€3.99/month) adds full AI analysis, scan history and alerts.
What does a scan check?
15+ sources in parallel — VirusTotal, Google Safe Browsing, SSL certificates, WHOIS and domain age, DNS, Wayback history, Trustpilot and more — synthesised by AI into one verdict.
How long does a scan take?
Most scans complete in 5–10 seconds; repeat scans are near-instant thanks to 6-hour caching.
Does the Chrome extension track my browsing?
No. It only checks the domain of the current page — no browsing history logging or personal data sent anywhere.
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