Trusted but Verify
Key details in this review:
cybersecurity tools and services and recent domain registration. Review the evidence before relying on the site.
Trust signal radarNormalized trust signals for cyfun.devDomain Maturity: 1 daysDomain MaturityWarning Cleanliness: 0 detectionsWarningCleanlinessSafety Level: 0 negative tags, 2 warning signalsSafetyLevelPositive Signals: 2 positive signalsPositiveSignalsPopularity: Estimated low traffic without Tranco or social profile dataPopularityTrust Zone: .devTrust ZoneOperational Signals: 0 detected servicesOperationalSignalsLocation Credibility: Hosting country USLocation Credibility
Figure 1. Trust signal radar for cyfun.dev. Larger shaded area indicates stronger trust signals.
We reviewed cyfun.dev and found a mix of positive and cautionary signals. The site does not currently look like a confirmed scam, but the evidence is not strong enough to treat it as fully established either. The current trust score is 60/100. Key signals include cybersecurity tools and services, recent domain registration, and generic page wording. Verify key details and recent independent feedback before relying on this site for important actions.
FAQ
Is cyfun.dev safe?
Based on current analysis, cyfun.dev appears to be generally safe overall, although some caution points still remain. Important context includes cybersecurity tools and services and recent domain registration. Basic verification is still recommended.
Why does cyfun.dev have mixed reputation signals?
Key factors include registrar information (Cloudflare, Inc.), hosting in US, and content related to cybersecurity tools for malware and phishing defense. Major malware and phishing engines did not report active blacklist detections at the time of review. The trust score blends security detections, domain and infrastructure signals, and on-page behavior patterns. Overall, this points to a mixed profile rather than a clearly safe one.
Cyfun Digital Footprints
A structured view of the site's detected themes, page signals, and related online footprint elements.
Cybersecurity
AI-generated Text
This site contains text patterns consistent with machine-generated or AI-assisted content production.
Social Media Links
The presence of social media links on the website indicates that it references social media accounts. This signal alone does not confirm ownership or authenticity of those profiles.
GitHub Profile
cyfun.dev links to a GitHub profile or public repository associated with the project. This is a useful transparency signal, especially when the account has public activity.
Long Term Domain
This site is registered for an extended period, which is generally a positive continuity signal.
Young Domain
This site was registered recently, which limits historical reputation data and long-term trust signals.
High Trust Score
Domain Information
CreatedOctober 19, 2026 at 12:39 AMUpdated: October 19, 2026 at 12:39 AM · Expires: October 19, 2028 at 12:39 AM
SSL CertificateYR2TLSv1.3 · Valid for: 3 months · from October 19, 2026 at 9:29 PM · to January 17, 2027 at 9:29 PM
Name Serversjewel.ns.cloudflare.com lou.ns.cloudflare.com
Content from the analyzed website
Quoted for security analysis. These statements belong to the source website and are not endorsed by Gridinsoft.
Original page titlecyfun | Sachin Kumar, Security Research
Original descriptionSachin Kumar's personal security research site. Threat hunting, reverse engineering, eBPF security, EDR internals, and vulnerability research.
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60
points /100
The score is based on a 1-100 scale, with 100 being the most reputable.
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Help protect others by sharing this page on social media! The more people who know about cyfun.dev, the fewer chances they have to deceive someone else.Help others evaluate cyfun.dev by sharing this page on social media!
Help protect others by sharing this page on social media! The more people who know about cyfun.dev, the fewer chances they have to deceive someone else. Help others evaluate cyfun.dev by sharing this page on social media!