completedns.com
DNS History is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.
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dnsai.com
Free DNS, WHOIS, DKIM discovery, SPF/DMARC analysis and blacklist checks with plain-English results, no signup.
dnsstuff.com
DNSStuff is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.
dnsviz.net
DNSViz is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.
github.com
A fast and multi-purpose DNS toolkit from ProjectDiscovery for running DNS probes, resolving records and filtering DNS responses.
kriztalz.sh
Retrieve DNS records, subdomains, SSL certificates and WHOIS / RDAP data for a given website.
easywhois.com
Easy whois is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.
exonerator.torproject.org
A database of IP addresses that have been part of the Tor network. It answers the question whether there was a Tor relay running on a given IP address
focsec.com
Threat Intelligence API that detects if a IP address is associated with a VPN, Proxy, TOR or Bots.
fofa.so
Internet asset search engine for discovering exposed services, hosts, domains, and technologies.
follow.net
Follow.net is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.
fullhunt.io
FullHunt is an OSINT tool focused on identifying and protecting internet-exposed assets.
app.graphystories.com
GraphyStories is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.
greynoise.io
IP intelligence tool for checking scan traffic, noisy hosts, and suspicious internet activity.
osint.sh
OSINT.sh SSL check for testing whether a host appears vulnerable to Heartbleed.
iana.org
IANA database listing top-level domains, registry operators, and root zone delegation data.
infosniper.net
Infosniper is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.
census2012.sourceforge.net
Research paper and dataset about internet-wide scanning and host discovery from 2012.
internetdb.shodan.io
Shodan InternetDB lookup for checking open ports, vulnerabilities, tags, and host data by IP.
intodns.ai
AI-powered DNS and email security scanner with SPF, DKIM, DMARC, DNSSEC checks and fix suggestions.
ip2geolocation.com
IP 2 Geolocation is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.
ipchecking.com
IP Checking is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.
osint.sh
OSINT.sh IP lookup for checking geolocation, ASN, network, and hosting information.
db-ip.com
IP Geolocation API DB-IP is a web tool for finding, checking, or analyzing online information related to domains, networks, and digital services.