Set a target above to deep-link these into it. Otherwise, each one opens its homepage.
- crt.shcrt.shSearch Certificate Transparency logs to enumerate subdomains
- Shodanshodan.ioSearch engine for Internet-connected devices
- Censyssearch.censys.ioLookup hosts associated with a domain
- SSL Labs Testssllabs.comAnalyzes the SSL configuration of a server and grades it
- SecurityHeaderssecurityheaders.comGrades a site's HTTP security headers
- Mozilla HTTP Observatorydeveloper.mozilla.orgAssesses website security posture by analyzing various security headers and practices
- Virus Totalvirustotal.comChecks a URL against multiple antivirus engines
- URLScanurlscan.ioScans a URL and provides information about the page
- Built Withbuiltwith.comView the tech stack of a website
- Wappalyzerwww.wappalyzer.comView the tech stack of a website (complements Built With)
- DNS Dumpsterdnsdumpster.comDNS recon tool, to map out a domain from its DNS records
- NS Lookupnslookup.ioView DNS records for a domain
- DNS Checkerdnschecker.orgCheck global DNS propagation across multiple servers
- MXToolboxmxtoolbox.comDNS, MX, and blacklist lookup Swiss-army tool
- Domain Toolswhois.domaintools.comRun a WhoIs lookup on a domain
- BGP Toolsbgp.toolsView realtime BGP data for any ASN, Prefix or DNS
- Cloudflare Radarradar.cloudflare.comView traffic source locations for a domain through Cloudflare
- GreyNoise Visualizerviz.greynoise.ioIP noise/threat classification. Most useful when the target is an IP.
- AbuseIPDBabuseipdb.comChecks a website against Zscaler's dynamic risk scoring engine
- IBM X-Force Exchangeexchange.xforce.ibmcloud.comView shared human and machine generated threat intelligence
- Sucuri SiteChecksitecheck.sucuri.netChecks a URL against blacklists and known threats
- Blacklist Checkerblacklistchecker.comCheck if a domain, IP or email is present on the top blacklists
- URLVoidurlvoid.comChecks a website across 30+ blocklist engines and website reputation services
- URLhausurlhaus.abuse.chChecks if the site is in URLhaus's malware URL exchange
- Archivearchive.orgView previous versions of a site via the Internet Archive
- Similar Websimilarweb.comView approx traffic and engagement stats for a website
- Page Speed Insightsdevelopers.google.comChecks the performance, accessibility and SEO of a page on mobile + desktop
- ANY.RUNany.runAn interactive malware and web sandbox
- Hudson Rockhudsonrock.comIdentify Infostealer infection data related to domains and emails
These tools are not affiliated with this site. Use them at your own risk. Tool list adapted from web-check.