{
  "reviewedAt": "2026-09-18",
  "method": "Official pages and project READMEs were inspected with web browsing. A readable page does not establish successful installation or validate every release asset.",
  "referenceSites": ["https://hello-ctf.com/", "https://www.ctftools.com/"],
  "readableOfficialSources": [
    "https://ctf.show/", "https://www.ctfhub.com/", "https://adworld.xctf.org.cn/",
    "https://learn.cylabacademy.org/", "https://pwn.college/", "https://cryptohack.org/", "https://overthewire.org/wargames/", "https://ctftime.org/",
    "https://ctf-wiki.org/", "https://hello-ctf.com/", "https://portswigger.net/web-security", "https://guyinatuxedo.github.io/", "https://docs.pwntools.com/en/latest/", "https://ctf-wiki.github.io/ctf-tools/", "https://github.com/CTF-Archives/CTF-Archives.github.io",
    "https://github.com/gchq/CyberChef", "https://github.com/XDSEC/WebSocketReflectorX", "https://hashcat.net/hashcat/", "https://www.openwall.com/john/", "https://github.com/0Chencc/CTFCrackTools", "https://portswigger.net/burp/communitydownload", "https://www.wireshark.org/download.html", "https://github.com/NationalSecurityAgency/ghidra", "https://github.com/x64dbg/x64dbg", "https://github.com/Gallopsled/pwntools", "https://github.com/mandiant/flare-floss", "https://github.com/sqlmapproject/sqlmap", "https://github.com/maurosoria/dirsearch", "https://github.com/ffuf/ffuf", "https://github.com/RsaCtfTool/RsaCtfTool", "https://github.com/Z3Prover/z3", "https://www.sagemath.org/download.html", "https://github.com/ReFirmLabs/binwalk", "https://steghide.sourceforge.net/download.php", "https://github.com/zed-0xff/zsteg", "https://www.7-zip.org/download.html", "https://mh-nexus.de/en/hxd/", "https://learn.microsoft.com/zh-cn/windows/wsl/install"
  ],
  "limitedReadability": [
    { "url": "https://www.nssctf.cn/", "status": "web reader error", "corroboration": "https://hello-ctf.com/hc-appendix/NSSCTF_Usage/" },
    { "url": "https://ctf.bugku.com/", "status": "web reader error", "corroboration": "https://hello-ctf.com/hc-start/" },
    { "url": "https://book.hacktricks.wiki/", "status": "web reader error; no current reachability claim" },
    { "url": "https://exiftool.org/", "status": "web reader error; no current reachability claim" },
    { "url": "https://www.gnu.org/software/gdb/", "status": "web reader error; no current reachability claim" }
  ],
  "redirectsObserved": [
    { "from": "https://play.picoctf.org/", "to": "https://learn.cylabacademy.org/" },
    { "from": "https://github.com/ctf-archives/ctf-archives", "to": "https://github.com/CTF-Archives/CTF-Archives.github.io" }
  ],
  "installationValidation": "Instructions are summaries based on official project documentation; not installed and tested on every listed OS.",
  "releaseAssetsValidation": "Links intentionally point to official download selectors or project release pages. Individual packages are not downloaded or installed."
}