> For the complete documentation index, see [llms.txt](https://www.pentest-book.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.pentest-book.com/recon/domain-enum.md). # Root domains ### Basic ```bash # https://github.com/OWASP/Amass amass intel -d domain.com -whois # Search on Google https://google.com/search?q=united+airlines # Analyze owners on domainbigdata https://iqwhois.com/ ``` ### Reverse whois ``` https://viewdns.info/reversewhois/?q=United+Airlines https://tools.whoisxmlapi.com/reverse-whois-search ``` ### ASN ```bash https://bgp.he.net/search?search%5Bsearch%5D=united+airlines&commit=Search whois -h whois.radb.net -- '-i origin AS11535' | grep -Eo "([0-9.]+){4}/[0-9]+" | uniq whois -h whois.radb.net -- '-i origin AS20461' | grep -Eo "([0-9.]+){4}/[0-9]+" | uniq | mapcidr -silent | dnsx -ptr -resp-only -retry 3 -silent ``` ### Favicon ```bash # https://github.com/pielco11/fav-up python3 favUp.py -ff ~/favicon.ico --shodan-cli # https://github.com/devanshbatham/FavFreak cat urls.txt | python3 favfreak.py # https://faviconhasher.herokuapp.com/ # https://www.shodan.io/search?query=http.favicon.hash%3A-382492124 # https://github.com/edoardottt/favirecon favirecon -u https://target.com/ -v ``` ### Google Analytics ID ```bash https://builtwith.com/relationships/united.com https://builtwith.com/relationships/tag/UA-29214177 https://api.hackertarget.com/analyticslookup/?q=united.com https://api.hackertarget.com/analyticslookup/?q=UA-16316580 ``` ### DNS manual recon ```bash dnsrecon -d www.example.com -a dnsrecon -d www.example.com -t axfr dnsrecon -d www.example.com -g dnsrecon -d www.example.com -D /usr/share/wordlists/subdomains.txt -t brt dig www.example.com + short dig www.example.com MX dig www.example.com NS dig www.example.com> SOA dig www.example.com ANY +noall +answer dig -x www.example.com dig -4 www.example.com (For IPv4) dig -6 www.example.com (For IPv6) dig www.example.com mx +noall +answer example.com ns +noall +answer dig -t AXFR www.example.com dig axfr @10.11.1.111 example.box dnsenum 10.11.1.111 ``` ### Reverse IP search ```bash # Get domain from IP # https://reverse-ip.whoisxmlapi.com/ # https://github.com/projectdiscovery/dnsx cat ips.txt | dnsx -ptr -resp-only -silent -retry 3 ``` ### TLD bruteforcing ``` # TLD bruteforcing tool https://github.com/Sybil-Scan/TLDbrute ``` --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://www.pentest-book.com/recon/domain-enum.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.