View website in :

USCIS website
https://www.uscis.gov/
To Check Case Status - USCIS
https://egov.uscis.gov/casestatus/landing.do
To Check Processing Time - USCIS
https://egov.uscis.gov/processing-times/
To Study For Citizenship Test
https://www.uscis.gov/citizenship/learners/study-test
To Get Tax Return Transcript
https://www.irs.gov/individuals/get-transcript
Civil Surgeon
https://my.uscis.gov/findadoctor