How can we help you?

We compiled a list of common questions with answers which you might need, however if you cannot find your answer feel free to contact us.

What is Postback ?

The Postback feature allows you to reward your users for voting your game.

This is a great way of inviting your users to promote your game to the top of the list.

We designed our Postback system unlike any other. It sends you back nearly real-time data to your website so you can automatically reward your users for their vote.

How to use Postback ?

The Postback feature is by default disabled for every listing added. You must enable the post feature for each listing individually from your account by clicking the "Actions" section.

Step 1:

Prepare your postback receiver, this can be implemented within your CMS/website or you can use our example below.

Save the following code as supremetop_postback.php:

// If you use this check, the below are not relevant.
// However we do not recommened relying on IP checks as this might change in the future
$supremetop100_ips = ['', '', '', ''];
if(!in_array($requester_ip, $supremetop100_ips)) {
// Do not give too many details, because the attacker is smart.
die('Invalid request!');
// Ensure that it is a POST request.
if(strcasecmp($_SERVER['REQUEST_METHOD'], 'POST') != 0) {
// Do not give too many details, because the attacker is smart.
die('Invalid request!');
// Ensure that this is SupremeTop100 sending the request
if(strcasecmp($_SERVER['HTTP_USER_AGENT'], 'SupremeTop100/1.0 (Linux; x64) Postback Agent') != 0) {
// Do not give too many details, because the attacker is smart.
die('Invalid request!');
// Ensure that the content type of the POST request has been set to application/json
$contentType = isset($_SERVER["CONTENT_TYPE"]) ? trim($_SERVER["CONTENT_TYPE"]) : '';
// For RESTful response
// For "normal" response use 'application/x-www-form-urlencoded'
if(strcasecmp($contentType, 'application/json') != 0) {
// Do not give too many details, because the attacker is smart.
die('Invalid request!');
// Retrieve the RAW POST data.
$content = trim(file_get_contents("php://input"));
// Attempt to decode the incoming RAW POST data from JSON.
$decoded = json_decode($content, true);
// If json_decode failed, the JSON is invalid.
if(!is_array($decoded)) {
// Do not give too many details, because the attacker is smart.
die('Invalid request!');
// Process the JSON parsed as array.
if($decoded['supremetop100_vote_info']['status'] == 1) {
// Rewards your user by username or character name
// Additionally log the whole postback data to file or database
$log_filename = sprintf("%s_voteData.txt", date('Y-m-d_H-i-s'));
@file_put_contents($log_filename, print_r($decoded, true));

Step 2:

Activate the postback for your listing by specifying the full URI path the file we just saved:

NOTE: You do not need to add any URL parameters here.

Step 3:

You need to modify your existing vote in link, to include the ?postback=1 URL parameter.

Add your desired parameters to the URL in order to know which user to reward. You can add 2 parameters:


Optionally you can add both of them:



Do not add any other parameters, because none of them are used. Do not add anything else either in the 2 parameters above other than what they are intended for, for example do not add email addresses. Doing so will only break your postback feature.

Final Step:

Ensure everything is setup as instructed, otherwise the postback system will not work.

As a reminder, you need to ensure the following:

  • The postback feature is enabled for your listing
  • You added the correct link in the postback setup
  • You modified your vote in link on your website so users visit the new URL

Response Postback:

Our system will send you as much information as possible so you can properly check your users if they voted legitimately or not.

You can also use our response as statistics in order to see from what/where they voted or tried to vote.

Optionally you can use our response timing to show the users that he already voted in the time limit.

The response you will receive is as follows (JSON format, some data removed for privacy):

"status": 0,
"message": "This IP already voted in last 12 hours.",
"time_passed": "01 hours 35 minutes 47 seconds.",
"time_left": "10 hours 24 minutes 13 seconds."
"ip_address": "",
"username": "",
"character": ""
"name": "",
"iso_code": "",
"geo_code": "",
"in_eu": ""
"name": "",
"postal_code": ""
"latitude": "",
"longitude": ""
"cidr": "",
"number ":"",
"organisation ":""

Final Notes:

We do not disclose how we check the user votes, but we can advise you on what to do to ensure your users are not taking advantage of your rewards.

Use the information we send back to you, store it in a database and check the username/character and the vote time.

This will ensure they legitimately get the rewards only as per your own rules.

What are Premium Listings ?

Premium Listings allow you to stand out in the list of games and gain more attention and traffic.

The way we designed our Premium Listing features also boosts your SEO automatically.

What are Memberships ?

Membership plans allow you to have extra control and certain advantages over the entire website.

The list of features will be updated soon.

Why charge money ?

Nothing is free nowadays, in fact nothing was free ever since the dawn of men. For us to be able to run this website there is a cost.

There is also a cost in time and effort to maintain the website, and to develop it further with new features.

We charge a small fee to cover these costs, not to make any profit.

How to buy Crypto Currencies ?

It has never been easier than today how to buy crypto currencies. There are countless tutorials on the interner showing you every step.

The process is simple, fast and fairly easy; it all depends on which online service you use.

Our recommended service is Coinbase. Coinbase is the biggest and most popular cryptocurrency broker exchange. It is secure and accepts bank transfer, credit/debit card, and PayPal.

If you live in Asia, Africa or South America, you probably cannnot use Coinbase. It is mainly only available in Europe, Australia and North America - you can see a full list of the available countries here.

Coinbase fees also depend on your location, so be sure to check here to find out how much the fees are where you live.

You can buy Bitcoin, Ether, Litecoin, and Bitcoin Cash on Coinbase.

Please read our blog post on how to buy crypto currencies.

Paying with Crypto Currencies

- Coins accepted

We accept the following crypto currencies only:

  • Bitcoin
  • Bitcoin Cash
  • Ethereum
  • Litecoin
  • USD Coin

Do not send any other type of coins because we cannot accept them.

- Making payments

When you try to make a payment on our website a new order is created. The system will wait to detect a payment for 60 minutes (1 hour).

If no payment is detected within the given time the order is automatically marked as cancelled (expired), and you must repeat your purchase.

Ensure that you send the exact amount shown at the moment of purchase, sending less or more will only delay your purchase indefinitely.

Paying with PayPal

- Currencies accepted

We accept the following currencies only:

  • Euro
- Making payments

To make a payment with PayPal just click the PayPal button upon checkout.

If you encounter any issues paying, just send the amount required to [email protected] and then contact us with the transaction id.

Make sure you use a fully validated PayPal account as we do not accept any funds from scammers.

We do not accept eChecks under any circumstance.


We take security very seriously and this is why efforts have been made to keep your data as safe as possible.

Our technology stack uses the latest industry standard features ensuring maximum security.

Please read our Terms and Conditions and Privacy Policy for more information.


We take your privacy very seriously and this is why we guarantee that any of your data submitted on this website will never be sold or shared to anyone. Ever.

Please read our Terms and Conditions and Privacy Policy for more information.

Found a problem on this page ? Please help us improve it. Contact Us and get a reward!