Tools
Lookup pages for security teams and builders.
Investigate a website, sender, or network with a focused free check. Use the results to decide what to investigate next.
Free risk report tools
Start with a focused check. RequestGuard Suite adds daily monitoring, alerts and shared evidence. Email Check and Lookups are also available separately.
Mini report Free IP Abuse Check IP abuse, VPN, proxy, datacenter, ASN, and blocklist signals summarized as a mini risk report. Mini report Free Email Risk Check Disposable, role, free-mailbox, and domain mismatch signals translated into a Trust, Review, or Block recommendation. Mini report Free Website Security Check Check public website settings, review coverage, and understand which protections need attention. Mini report Free Website Request Risk Check Paste website request or ecommerce order details and get a mini risk report before generating the full report.
Lookup Tools
Interactive utilities that turn intelligence signals into investigation pages.
Free website check Website Security Check Get a clear security score, see which protections work, and find the most useful fixes. Tools Security Lookup Tools DNS, IP, domain, email, and Radar-backed intelligence tools for investigations. OSV + npm Package Vulnerabilities Live npm package advisory pages with affected ranges, fixed versions, and source links.
Domain Popularity
Radar-backed domain popularity and trend pages.
Cloudflare Radar Domain Popularity Popular and trending domains from Cloudflare Radar with direct RequestGuard lookup links. Popular domains Top 100 Domain Popularity The current top 100 domains from Cloudflare Radar, linked to DNS lookup pages. Fast movers Trending Rising Domains Domains with the sharpest increase in Cloudflare Radar ranking interest. Sustained trend Trending Steady Domains Domains with sustained Radar ranking momentum over the latest observation window.
Email Intelligence
Disposable email and malicious or spam-heavy TLD references.
Email risk Disposable Email Domains A practical reference for temporary inbox domains and signup abuse prevention. Email Radar Spam-Heavy Email TLDs Top-level domains most associated with spam-classified email in Cloudflare Radar. Email Radar Malicious Email TLDs Top-level domains most associated with malicious email classification in Cloudflare Radar.
Bot & Attack Intelligence
Radar-backed ASN views for automated traffic and attacks.