Link Building Report Generator Script Scope Change with attachment

Hi I am looking for a freelancer to build a simple script. The script will 1. Allow a user to specify a series of URL 2. Upload csv,xls,txt,xlsx,doc,docx, html (If having multiple formats result in alot of errors. One possible option is to do a free area, where the admin staff can copy and paste? [login to view URL]) The sytem will then (a) System scans and extracts all urls from all tabs in an xls,csv,doc,docx,txt, html (b) System builds a table with all the extracted urls (c) System test each urls for validity and flag those with 404 errors etc for errors (d) System check that each url has at least 1 destination url on the page or flag it as error (e) System will builds a report for all the valid urls providing the following information - Meta Title (Limited Characters) - URL - Display preexisting fields of a database. We will create a database of Domain Citation Flow, Trust Flow, BackLinks [login to view URL] xx xx xxx If domain matches, then the citation flow, trust flow and backlinks will be displayed. Admin must be able to add more information via the backend. There will be user front end and admin backend. Platform must be design with scalability and multiple user usage in mind. Software must be robust with min dependencies. Full documentation of all variables used and the database structure details must be provided. Please see ppt attached. Vendor must indicate 1. Past Related Experience and provide related reference url 2. Vendor selection based on competitive bid, feedback and portfolio 3. Indicate time to completion 4. Client to provide only wireframe, vendor to design and do the programming 5. Also explain this concern --> If there could be hundred of URLs per report, how do we sustainably check for page or link errors? Would crawlers be blocked? Having to use rotating IPs etc... sounds easy for the system to break down and hard to maintain Why Bid? If you interested in getting some 5* feedback on your profile and potential long term work. About Us * Freelancer.com: Total 350+ Projects, 100 5* Employer Reviews, Over USD$50,000 Spend [login to view URL] * Upwork/Elance : Total 220+ Projects , Over USD$40,000 Spend [login to view URL]