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DomainRecon
DomainRecon looks up DNS records, WHOIS details, SSL certificates, and IP addresses for a domain.
About DomainRecon
DomainRecon is a web tool for initial domain information. Users enter a domain name or URL to retrieve DNS records, WHOIS and RDAP registration data, SSL certificate information, IP address information, and subdomains discovered from certificate data.
The homepage states that it accesses only publicly available information and that search queries and results are stored for up to 24 hours. WHOIS and RDAP data is described as live, DNS responses are cached briefly, and certificate data updates with each run. Private or split-horizon domains may require pointing the tool at resolvers that can access them.
Key features
- Looks up DNS records including A, AAAA, MX, TXT, NS, and SOA
- Retrieves WHOIS and RDAP registration data for domains
- Provides SSL certificate information
- Discovers subdomains from certificate data
- Shows IP address information
- Offers a bookmarklet to check the current website
Best for: Security researchers and analysts who need initial domain information from public sources.
Good for
- Combines DNS, WHOIS/RDAP, SSL certificate, IP, and subdomain data in one interface.
- Supports RDAP and WHOIS protocol lookup.
- Includes a bookmarklet for checking the current website.
Watch out for
- Private or split-horizon domains may require resolvers that can access them.
- DNS responses are cached briefly, so results may not be live.
- Search queries and results are stored for up to 24 hours.
DomainRecon at a glance
- Website
- kriztalz.sh/domain-recon
- Category
- Privacy & Security › Website & URL Scanners
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
DomainRecon alternatives
Tools and sites you could use instead, ranked by how closely they match.
DNSai provides DNS lookups and analysis tools for records, WHOIS, blacklists, email authentication, and domains.
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DomainRecon FAQ
How current is the data?
WHOIS and RDAP data is live. DNS responses are cached briefly to avoid hammering resolvers. Certificate data updates with each run, so newly issued certificates appear within minutes of transparency logs updating.
Does the tool work on internal domains?
It depends on visibility. Public records usually resolve, but private or split-horizon zones require pointing the tool at resolvers that can access them.
What information does the tool store?
The privacy notice says search queries and results are stored for up to 24 hours.
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