Parsero - Robots.txt Audit Tool

Parsero is a Python script that can read the Disallow entries in the Robots.txt file of a web server.

What is Disallow entries?

The Disallow entries tell the search engines what directories or files hosted on a web server mustn't be indexed.

For example, "Disallow: /portal/login" means that the content on it's not allowed to be indexed by crawlers like Google, Bing, Yahoo. This is the way the administrator have to not share sensitive or private information with the search engines.

But sometimes these paths typed in the Disallows entries are directly accessible by the users without using a search engine, just visiting the URL and the Path, and sometimes they are not available to be visited by anybody. Because it is really common that the administrators write a lot of Disallows and some of them are available and some of them are not, you can use Parsero in order to check the HTTP status code of each Disallow entry in order to check automatically if these directories are available or not.

Also, the fact the administrator write a robots.txt, it doesn't mean that the files or directories typed in the Dissallow entries will not be indexed by Bing, Google, Yahoo, etc. For this reason, Parsero is capable of searching in Bing to locate content indexed without the web administrator authorization. Parsero will check the HTTP status code in the same way for each Bing result.

Usage: [-h] [-u URL] [-o] [-sb]

optional arguments:
-h, --help  show this help message and exit
-u URL      Type the URL which will be analyzed
-o          Show only the "HTTP 200" status code
-sb         Search in Bing indexed Disallows
-f FILE     Scan a list of domains from a list


root@kali:~# parsero -u -sb

    |  _ \ __ _ _ __ ___  ___ _ __ ___  
    | |_) / _` | '__/ __|/ _ \ '__/ _ \ 
    |  __/ (_| | |  \__ \  __/ | | (_) |
    |_|   \__,_|_|  |___/\___|_|  \___/ 

Starting Parsero v0.75
( at 05/22/14 11:12:55
Parsero scan report for 302 Moved Temporarily 302 Moved Temporarily 200 OK 200 OK 302 Moved Temporarily 302 Moved Temporarily 404 Not Found 302 Moved Temporarily 200 OK
[+] 9 links have been analyzed and 3 of them are available!!!
Searching the Disallows entries in Bing
- 200 OK
- 302 Moved Temporarily
- 200 OK
  302 Moved Temporarily
Finished in 7.290362596511841 seconds

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