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 # OD-Database
 
+OD-Database is a web-crawling project that aims to index a very large number of file links and their basic metadata from open directories (misconfigured Apache/Nginx/FTP servers, or more often, mirrors of various public services).
+
+Each crawler instance fetches tasks from the central server and pushes the result once completed. A single instance can crawl hundreds of websites at the same time (Both FTP and HTTP(S)) and the central server is capable of ingesting thousands of new documents per second. 
+
+The data is indexed into elasticsearch and made available via the web frontend (Currently hosted at https://od-db.the-eye.eu/). There is currently ~1.8 billion files indexed (total of about 300Gb of raw data). The raw data is made available as a CSV file [here](https://od-db.the-eye.eu/dl).
+
+
+### Contributing   
 Suggestions/concerns/PRs are welcome
 
 ## Installation