Postback Parameters Summary This page describes the parameters available for sending postback requests from a CPA network or tracking platform to DAO.AD. URL Parameter Value Description DAO.AD API Server constant DAO.AD postback endpoint URL key text Unique API key used to authenticate server-to-server (S2S) postback requests. sum numeric Conversion value or lead payout amount click-id numeric Unique Click ID received from DAO.AD URL macros type text The postback type (default is  main ). Common values include: main  (e.g., registration),  dep (e.g., deposit), or any custom types you define ttl numeric Time in secounds. The postback request time-to-live (TTL). During this period, any postback containing the same Click ID will be treated as a duplicate and ignored. The default value is 24 hours. Minimum value 5 seconds Important: The API key can be found on your DAO.AD Profile page . Example URL http://api.daopush-api.info/api/postback/campaign?key= XXXXXXXXXXXXX &sum= {sum} &click-id= {click-Id} &type= {type} &ttl= {ttl} where: XXXXXXXXXXXXX - your DAO.AD API key {sum} , {click-Id} , {type} , {ttl} - example macro names used by a CPA network or tracking platform. How macro replacement works DAO.AD URL: http://api.daopush-api.info/api/postback/campaign?key= XXXXXXXXXXXXX &sum= {sum} &click-id= {click-Id} &type= {type} &ttl= {ttl} After CPA/Tracker request: http://api.daopush-api.info/api/postback/campaign?key= XXXXXXXXXXXXX &sum= 10 &click-id= 61721111 &type= dep &tt l= 50 Important: These macro names are examples only and may differ depending on the CPA network or tracking platform. Always refer to the documentation of your CPA network or tracker. Why is it needed? After a user completes a conversion, the CPA network or tracking platform sends conversion information back to DAO.AD. This data is used for reporting, optimization, automated rules, micro-bidding, and campaign analytics. Benefits of postback tracking: Accurate conversion tracking ROI calculation Automated blacklisting rules Micro-bidding optimization Source and sub-source analysis Campaign performance reporting Related Tracking Configuration Models Blacklist and Whitelist Targeting Micro-bidding Tool Bid Adjustments