Domain Analyzer - Tool For Analyzing the Security of a Domain

Domain Analyzer - Tool For Analyzing the Security of a Domain

Domain Analyzer is a security analysis tool which automatically discovers and reports information about the given domain. Its main purpose is to analyze domains in an unattended way.

It takes a domain name and finds information about it, such as DNS servers, mail servers, IP addresses, mails on Google, SPF information, etc. After all the information is stored and organized it scans the ports of every IP found using nmap and perform several other security checks. After the ports are found, it uses the tool to spider the complete web page of all the web ports found. This tool has the option to download files and find open folders.


  • Creates a directory with all the information, including nmap output files.
  • Uses colors to remark important information on the console.
  • Detects some security problems like hostname problems, unusual port numbers and zone transfers.
  • Heavily tested and it is very robust against DNS configuration problems.
  • Uses nmap for active host detection, port scanning and version information (including nmap scripts).
  • Searches for SPF records information to find new hostnames or IP addresses.
  • Searches for reverse DNS names and compare them to the hostname.
  • Prints out the country of every IP address.
  • Creates a PDF file with results.
  • Automatically detects and analyze sub-domains!
  • Searches for domains emails.
  • Checks the 192 most common hostnames in the DNS servers.
  • Checks for Zone Transfer on every DNS server.
  • Finds the reverse names of the /24 network range of every IP address.
  • Finds active host using nmap complete set of techniques.
  • Scan ports using nmap.
  • Searches for host and port information using nmap.
  • Automatically detects web servers used.
  • Crawls every web server page using our Web Crawler Security Tool.
  • Filters out hostnames based on their name.
  • Pseudo-randomly searches N domains in google and automatically analyze them!
  • Uses CTRL-C to stop current analysis stage and continue working.
  • It can read an external file with domain names and try to find them on the domain.


usage: -d <domain> <options>
 -h, --help                               Show this help message and exit.
 -V, --version                            Output version information and exit.
 -D, --debug                              Debug.
 -d, --domain                             Domain to analyze.
 -L <list>, --common-hosts-list <list>    Relative path to txt file containing common
                                          hostnames. One name per line.
 -j, --not-common-hosts-names             Do not check common host names. Quicker but
                                          you will lose hosts.
 -t, --not-zone-transfer                  Do not attempt to transfer the zone.
 -n, --not-net-block                      Do not attempt to -sL each IP netblock.
 -o, --store-output                       Store everything in a directory named as the 
                                          domain. Nmap output files and the summary are 
                                          stored inside.
 -a, --not-scan-or-active                 Do not use nmap to scan ports nor to search
                                          for active hosts.
 -p, --not-store-nmap                     Do not store any nmap output files in the 
                                         directory <output-directory>/nmap.
 -e, --zenmap                             Move xml nmap files to a directory and open 
                                          zenmap with the topology of the whole group. 
                                          Your user should have access to the DISPLAY 
 -g, --not-goog-mail                      Do not use (embebed) to look 
                                          for emails for each domain
 -s, --not-subdomains                     Do not analyze sub-domains recursively. 
                                          You will lose subdomain internal information.
 -f, --create-pdf                         Create a pdf file with all the information.
 -l, --world-domination                   Scan every gov,mil,org and net domains of 
                                          every country on the world. Interesting if 
                                          you don't use -s
 -r, --robin-hood                         Send the pdf report to every email found 
                                          using domains the MX servers found. 
                                          Good girl.
 -w, --not-webcrawl                       Do not web crawl every web site 
                                          (in every port) we found looking for 
                                          public web mis-configurations 
                                          (Directory listing, etc.).
 -m, --max-amount-to-crawl                If you crawl, do it up to this amount 
                                          of links for each web site. Defaults to 50.
 -F, --download-files                     If you crawl, download every file to disk.
 -c, --not-countrys                       Do not resolve the country name for every IP 
                                          and hostname.
 -C, --not-colors                         Do not use colored output.
 -q, --not-spf                            Do not check SPF records.
 -k, --random-domains                     Find this amount of domains from google 
                                          and analyze them. For base domain use -d
 -v, --ignore-host-pattern                When using nmap to find active hosts and 
                                          to port scan, ignore hosts which names 
                                          match this pattern. Separete them with commas.
 -x, --nmap-scantype                      Nmap parameters to port scan. 
                                          Defaults to: '-O --reason 
                                          --webxml --traceroute -sS -sV -sC -PN 
                                          -n -v -F'.
 -b, --robtex-domains                     If we found a DNS server with zone transfer 
                                          activated, search other UNrelated domains 
                                          using that DNS server with robtex and analyze 
                                          them too.
 -B, --all-robtex                         Like -b, but also if no Zone Transfer was 
                                          found. Useful to analyze all the domains in 
                                          one corporative DNS server. Includes also -b.
Press CTRL-C at any time to stop only the current step.


Its main features are:
  • Crawl HTTP and https websites.
  • Crawl HTTP and https websites not using common ports.
  • Uses regular expressions to find 'href' and 'src' html tag. Also content links.
  • Identifies relative links.
  • Identifies domain related emails.
  • Identifies directory indexing.
  • Detects references to URLs like 'file:', 'feed=', 'mailto:', 'javascript:' and others.
  • Uses CTRL-C to stop current crawler stages and continue working.
  • Identifies file extensions (zip, swf, sql, rar, etc.)
  • Download files to a directory:
    • Download every important file (images, documents, compressed files).
    • Or download specified files types.
    • Or download a predefined set of files (like 'document' files: .doc, .xls, .pdf, .odt, .gnumeric, etc.).
  • Maximum amount of links to crawl. A default value of 5000 URLs is set.
  • Follows redirections using HTML and JavaScript Location tag and HTTP response code.

Crawler Usage:

Usage: <options>

  -u, --url                            URL to start crawling.

  -m, --max-amount-to-crawl            Max deep to crawl. Using breadth first algorithm

  -w, --write-to-file                  Save summary of crawling to a text file.
                                       Output directory is created automatically.

  -s, --subdomains                     Also scan subdomains matching with url domain.

  -r, --follow-redirect                Do not follow redirect. By default follow 
                                       redirection at main URL.

  -f, --fetch-files                    Download there every file detected in 
                                       'Files' directory. Overwrite existing content.

  -F, --file-extension                 Download files specified by comma separated 
                                       extensions. This option also activates 
                                       'fetch-files' option. 'Ex.: -F pdf,xls,doc'

  -d, --docs-files                     Download docs files:xls,pdf,doc,docx,txt,odt,
                                       gnumeric,csv, etc. This option also activates 
                                       'fetch-files' option.

  -E, --exclude-extensions             Do not download files that matches with this 
                                       extensions. Options '-f','-F' or '-d' needed.

  -h, --help                           Show this help message and exit.

  -V, --version                        Output version information and exit.

  -v, --verbose                        Be verbose

  -D, --debug                          Debug.


Untar the .tar.gz file and copy the python files to the /usr/bin/ directory. Domain_analyzer needs to be run as root. The crawler can be run as a non-privileged user. If you want all the features (web crawler, pdf and colors), which is nice, also copy these files to /usr/bin or /usr/local/bin:
If you have any issues with the GeoIP database, download it from its original source. And install it in where your system needs it, usually at /opt/local/share/GeoIP/GeoIP.dat.


  • Find 10 random domains in the .gov domain and analyze them fully (including web crawling). If it finds some Zone Transfer, retrieve more domains using them from Robtex. -d .gov -k 10 -b
  • (Very Quick and dirty) Find everything related with domain, store everything in directories. Do not search for active host, do not nmap scan them, do not reverse-dns the netblock, do not search for emails. -d -b -o -g -a -n
  • Analyze the domain fully. -d -b -o
  • (Pen tester mode). Analyze a domain fully. Do not find other domains. Print everything in a pdf file. Store everything on disk. When finished open Zenmap and show me the topology every host found at the same time! -d -o -e
  • (Quick with web crawl only). Ignore everything with 'google' on it. -d -b -o -g -a -n -v google -x '-O --reason --webxml
--traceroute -sS -sV -sC -PN -n -v -p 80,4443'
  • (Everything) Crawl up to 100 URLs of this site including subdomains. Store output into a file and download every INTERESTING file found to disk. -u -w -s -m 100 -f
  • (Quick and dirty) Crawl the site very quick. Do not download files. Store the output to a file. -u -w -m 20
  • (If you want to analyze metadata later with lafoca). Verbose prints which extensions are being downloaded. Download only the set of archives corresponding to Documents (.doc, .docx, .ppt, .xls, .odt. etc.) -u -d -v

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