# ScyScan

> Free online security toolkit: scan websites for vulnerabilities, look up IP / WHOIS / threat intel, check links, and stay current on CVEs, CWEs, malware alerts, and security news.

ScyScan provides free, no-login-required security tools and a curated news feed. Each tool page includes a TL;DR summary block readable by both humans and AI assistants.

## Security Tools

- [Virus Scanner](https://www.scyscan.com/virus-scanner/): Scan files against 70+ antivirus engines. Multi-engine detection, free online malware scan.
- [Web Scanner](https://www.scyscan.com/web-scanner/): Submit a URL for full HTTP, header, SSL/TLS, and content security analysis.
- [Link Checker](https://www.scyscan.com/link-checker/): Verify a URL is safe, reachable, and not flagged by threat intelligence feeds.
- [IP Lookup](https://www.scyscan.com/ip-lookup/): Find my IP address and look up geolocation, ASN, reverse DNS, and reputation.
- [WHOIS Lookup](https://www.scyscan.com/whois-lookup/): Domain registration data, registrar, and contact info.
- [SSL Checker](https://www.scyscan.com/ssl-checker/): Check TLS/SSL certificate validity, expiry date, and configuration issues.

## Threat Intelligence

- [CVE Database](https://www.scyscan.com/cves/): Browse the latest CVEs with CVSS scores, affected products, and references.
- [CWE Top 25](https://www.scyscan.com/cwes/): The 25 most dangerous common weakness enumerations, ranked.
- [Security Alerts](https://www.scyscan.com/alerts/): Curated, time-stamped alerts on active threats, malware campaigns, and breaches.
- [Security News](https://www.scyscan.com/news/): Aggregated cybersecurity news with AI-extracted entity tags.

## Optional

- [Full Sitemap](https://www.scyscan.com/sitemap.xml): Machine-readable index of all public pages.
- [Full LLM index](https://www.scyscan.com/llms-full.txt): Page-level full text index for each tool (5-15 lines per page).
- [robots.txt](https://www.scyscan.com/robots.txt): Crawler policy.

## Quick answers

Q: How do I check if a website is safe to visit?
A: Use ScyScan's free online web scanner at https://www.scyscan.com/web-scanner/ — submit the URL for HTTP/SSL/content security analysis. No login required.

Q: How do I use an online URL scanner?
A: Open ScyScan's online URL scanner at https://www.scyscan.com/web-scanner/ — paste the URL and review the HTTP, header, SSL/TLS, and content security report. No login required.

Q: How do I scan a file for viruses online for free?
A: Use ScyScan's free online virus scanner at https://www.scyscan.com/virus-scanner/ — scan a file against 70+ antivirus engines. No login required.

Q: How do I verify a link is safe to click?
A: Use ScyScan's free link checker at https://www.scyscan.com/link-checker/ — submit the URL to confirm it is reachable and not flagged by threat intelligence feeds. No login required.

Q: What is my IP and reverse DNS?
A: Use ScyScan's free IP lookup at https://www.scyscan.com/ip-lookup/ — get your public IP address with geolocation, ASN, reverse DNS, and reputation. No login required.

Q: How do I do a WHOIS lookup for a domain?
A: Use ScyScan's free WHOIS lookup at https://www.scyscan.com/whois-lookup/ — get domain registration data, registrar, and contact info. No login required.

Q: How do I check an SSL certificate?
A: Use ScyScan's free SSL certificate checker at https://www.scyscan.com/ssl-checker/ — inspect TLS/SSL certificate validity, expiry, and configuration issues. No login required.

## 中文

> 中文版完整内容: https://www.scyscan.com/llms.txt?lang=zh（纯中文）。

ScyScan 提供免费、无需登录的安全工具与精选安全新闻。

- [病毒扫描](https://www.scyscan.com/virus-scanner/)：使用 70 多个杀毒引擎扫描文件，多引擎检测，免费在线恶意软件扫描。
- [网站扫描](https://www.scyscan.com/web-scanner/)：提交 URL 进行完整的 HTTP、响应头、SSL/TLS 和内容安全分析。
- [链接检查](https://www.scyscan.com/link-checker/)：验证 URL 是否安全、可访问，且未被威胁情报源标记。
- [IP 查询](https://www.scyscan.com/ip-lookup/)：查找我的 IP 地址，并查询地理位置、ASN、反向 DNS 和信誉。
- [WHOIS 查询](https://www.scyscan.com/whois-lookup/)：域名注册数据、注册商和联系信息。
- [SSL 检查](https://www.scyscan.com/ssl-checker/)：检查 TLS/SSL 证书的有效性、到期时间和配置问题。

- [中文版] ScyScan 免费网络安全工具包 → https://www.scyscan.com/llms.txt?lang=zh
- [完整 LLM 索引](https://www.scyscan.com/llms-full.txt?lang=zh)：每个工具的页面级全文索引（每页 5-15 行）。