Tech Tools

Multi‑engine scanners, sandboxes and reputation services

• VirusTotalvirustotal.com
• MetaDefender Cloudmetadefender.com
• Jotti's Malware Scanvirusscan.jotti.org
• Hybrid Analysishybrid-analysis.com
• Any.Runany.run
• URLScan.iourlscan.io
• Kaspersky Threat Intelligenceopentip.kaspersky.com
• DrWeb Online Scannervms.drweb.com
• AbuseIPDBabuseipdb.com
• MXToolbox Blacklist Checkmxtoolbox.com

SSL, headers, server config and site reputation tests

• Sucuri SiteChecksitecheck.sucuri.net
• Qualys SSL Labsssllabs.com
• SecurityHeaders.iosecurityheaders.com
• Mozilla Observatoryobservatory.mozilla.org
• Detectify (free scan)detectify.com
• Pentest-Toolspentest-tools.com
• UpGuard Web Scanbrowser.upguard.com
• ImmuniWeb Communityimmuniweb.com
• Hardenizehardenize.com
• URLVoidurlvoid.com

Linters, sandboxes, formatters, and handy dev helpers

• SonarCloudsonarcloud.io
• JSHintjshint.com
• ESLint Playgroundeslint.org
• JSFiddlejsfiddle.net
• CodePencodepen.io
• JSBinjsbin.com
• Regex101regex101.com
• RegExrregexr.com
• JSONLintjsonlint.com
• JWT.io Debuggerjwt.io
• CyberChefgchq.github.io
• Google Lighthousedevelopers.google.com

Scanners, DNS checkers, WHOIS and network search engines

• Nmap Onlinenmap.online
• Shodanshodan.io
• Censyssearch.censys.io
• IPinfoipinfo.io
• DNSCheckerdnschecker.org
• DNSDumpsterdnsdumpster.com
• IntoDNSintodns.com
• WHOIS Lookupwhois.domaintools.com
• MXToolbox SuperToolmxtoolbox.com
• Down For Everyone Or Just Medownforeveryoneorjustme.com
• SpeedTestspeedtest.net

Tools for discovery, tech stack checks, breach search and asset intel

• OSINT Frameworkosintframework.com
• BuiltWithbuiltwith.com
• Hunter.iohunter.io
• Spysespyse.com
• GreyNoisegreynoise.io
• HaveIBeenPwnedhaveibeenpwned.com
• LeakCheckleakcheck.io
• Temp-Mailtemp-mail.org
• FileFormat.infofileformat.info
• Archive.org (Wayback)web.archive.org