Articles on: Layouts and widgets

Understanding the "Quick Scan" Widget of Altrady

The Quick Scan widget in Altrady helps identify markets experiencing sudden price changes (drops or rises).

Notifications highlight potentially profitable opportunities, enabling more effective trading strategies.


The Quick Scanner backend has a full websocket implementation for fast response.

  • Old Quick Scanner only updated every 10-15 seconds. The new quick scanner uses a push mechanism.

Essential Plan:

  • 5-second push interval (2-3x faster than previous quick scanner)
  • Minimum percentage change: 2% (was always 2%)
  • Max rules: 20

Premium Plan:

  • 1 second push interval (10-15x faster than previous quick scanner)
  • Minimum percentage change: 0.1% (was 2%)
  • Max rules: 50


Quick Scanner Overview:

This video provides a clear overview of the Crypto Quick Scanner and how it delivers near real-time market updates. The scanner detects rapid price movements, including rises, drops, and fat-finger events, with updates arriving in as little as one second. Watching this video helps explain how the scanner identifies fast-moving opportunities and why speed is critical when reacting to short-lived market conditions.


In this documentation, it will be explained how to:



Troubleshooting


Background

The Quick Scan be used for 3 different types of alerts: Rises, Drops and Fat Fingers.

  • Rises and Drops Drops are based on recent lows/highs compared to the last trade.
  • Fat Fingers are based on the Order Book. If the best Ask in the Sell Order Book is far lower than the recent high, a Fat Finger notification will be sent.


Explanation of Terms Used Within the Quick Scan Widget


Fat Finger


A Fat Finger trade is a trade resulting from a human input mistake, such as entering the wrong price to sell a coin at. For example, when a very large Sell order is placed at a very low price due to a human input mistake, the order book will get filled at successively higher bid prices, causing a temporary drop in price (this occurs more commonly on markets with low trading volume). Thus, it presents a small window of opportunity, where coins can be purchased at prices that are lower than usual.


If this option is enabled in the Quick Scan widget for a created rule, a notification will be generated when the price drops to the set percentage.


Rise


This option refers to a rise in price. Therefore, when this option is enabled for a created rule, a notification will be generated when the price rises by the set percentage. The percentage value that is set for this option is always positive.


Drop


This option refers to a drop in price. As such, when this option is enabled for a created rule, a notification will be generated when the price drops by the set percentage. The percentage value that is set for this option is always negative.


Activating the Quick Scan widget


  1. To activate the Quick Scan widget, navigate to the trading terminal of Altrady,



  1. Click the Widgets button:



  1. Scroll down and tick the Quick Scan option.



  1. Navigate to the bottom of the screen to see the Quick Scan widget:



There is no fixed position of the widgets as they can be populated and dragged anywhere on the interface based on the available space and the number of widgets already activated.


The widgets of Altrady can be dragged anywhere on the interface and can be organized by the users to their liking. For more information click here.


Setting Up Quick Scan Notifications


  1. Navigate to the Quick Scan widget and click on Settings.



  1. A window containing Quick Scan filter settings will be displayed on-screen.



  1. Under Filter preset, click the + icon to start creating a new filter preset.



  1. In the empty field that appears, enter any name desired for the new filter preset. Then, click the Save button (i.e. floppy disk icon).



  1. Click on the tab shown below to open a dropdown menu. Following this, select a suitable timeframe (in minutes) for generating the notifications.



If 30m is used and the percentage drop or rise happens in a shorter timeframe, a notification will still be generated.


A notification will be generated multiple times if the current price is still up or down from the previous high or low. Once every minute per market.


  1. Select the desired notification sound for the Rise, Drop, and Fat Finger, by clicking on the tab labelled Select under each one. A dropdown menu will be displayed, where the desired sound can be selected.




To hear what any selected sound sounds like, click on the play button after having made a selection, as shown below.



OPTIONAL: To enable desktop notifications for any of the quick scan options, tick the box underneath any of them, as shown below.



  1. Start creating a rule for the created filter by clicking on the + Add rule button.



  1. After clicking on the + Add rule button, 4 details will need to be inserted in the fields to complete adding the rule.


  • Detail 1: Exchange (Under exchange field, select the preferred exchange)




  • Detail 2: Market (Under the Market field, enter the markets or currencies for which alerts should be received)


The comma-separated matcher can be used to add multiple markets. For example - /BTC, /USD, /ETH for quote currencies. Or ^ADA/USDT, ^SOL/BTC to whitelist only specific markets.



  • Detail 3: 24-hour volume (Enter the minimum 24-hour trading volume amount either in BTC or USD for which the alert should be generated. It will help in removing the low-volume markets).


  • Detail 4: Alert percentage thresholds (Set the alert percentage thresholds for the Rise, Drop, and Fat Finger).



Each of the alerts types can be disabled if they are not needed.


To create another rule, hit the + Add rule button once again.


  1. Exclude markets from the scanner by market name, currency, or minimum price.


For this purpose, market or currency name can be entered in the Exclude Markets field or enter the minimum price in the Minimum price field.


The minimum price field helps the trader to avoid barcode charts (low sat pairs) that are hard to trade.


For Exclude Markets, markets can be separated by commas.

They will be matched against the full market name which is in the following format: 

exchangeCode:base/quote

e.g. KUCN:ADA/USDT


The asterisk ("*") can be used as a wildcard.


Examples:

Exclude the Binance leveraged tokens: 

*UP/USDT, *DOWN/USDT

or the Kucoin leveraged tokens: 

*3S/USDT, *3L/USDT

If more than one exchange is listed and a market should be excluded from one exchange but not another, the exchange code can also be specified.: e.g. 

BINA:ADA/BTC

If more than one quote currency is included and all ADA markets need to be excluded, use: 

ADA/*

Or just:

ADA/


  1. Finally, hit the Save button to save the preset.


How to activate/deactivate a quick scanner preset


It is easy to activate or deactivate the quick scan preset but a precondition must be fulfilled -


  • The presets already exists in the Quick Scan widget


Activating: Navigate to the Quick Scan widget and click on the dropdown appearing alongside the Quick Scan Filter button. Select the saved preset from the dropdown menu to activate the same.


Deactivating: Navigate to the Quick Scan widget and click on the dropdown appearing alongside the Quick Scan Filter button. Select the Off from the dropdown menu deactivate the filter preset. Notifications will no longer be received after this.



How To Edit a Quick Scanner Preset


It is easy to edit the quick scan preset but a precondition must be fulfilled -


  • The presets already exists in the Quick Scan widget


  1. Navigate to the Quick Scan widget and select the saved preset from the dropdown menu for editing. After that, click settings on the Quick Scan Filter button to start editing.


  1. The Quick Scan Filter Settings dialogue box will pop up. To edit the name of the preset, click on the pencil icon to edit the "Filter Name" field, enter the new name, and then hit the save button.



Then click on the "save" icon:


  1. Other settings can be adjusted, such as:


  • Timeframe
  • Rise sound
  • Drop sound
  • Fat Finger sound
  • Excluded markets



  1. +Add rule button can be used to add more rules.



  1. Once the editing is complete, click the Save button and the preset will be updated accordingly.


How To Delete a Quick Scanner Preset


It is easy to delete the quick scan preset but a precondition must be fulfilled:


  • The presets already exists in the Quick Scan widget


  1. Navigate to the Quick Scan widget and select the saved preset from the dropdown. After that, click the Settings button.



  1. The Quick Scan Filter Settings dialogue box appear. To delete the preset, click the Delete button. A confirmation warning then displays at the top of the window. Click OK to confirm and delete the quick scanner preset. Click Cancel to close the Quick Scan Filter Settings dialog box without saving any changes.






How To View Quick Scanner Item Notifications


If there are any Quick Scanner notifications, it can be easily seen in the top right corner of the platform:


there are no notifications, no numbers will be shown on the indicator:

The indicator can be clicked, and it will automatically open the Quick Scan Widget:


For every quick scan item, there are 5 metrics to be observed:


  1. The market name
  2. 24-hour volume in USD or BTC
  3. Chart preview
  4. When the drop occurred
  5. The drop or rise percentage



Clicking on any alert will update the Market Depth chart for the same market accordingly.


Apart from viewing alerts and presets, there are a few other actions that can be used. Right-click on any of the quick scan item or click on the 3 dots menu on the right side to:


  • Open market (Select this option to replace the current selected market)
  • Open in a new tab (Select this option to add a new market tab)
  • Exclude market (Selecting this option to exclude the corresponding market from the Quick Scan Filter Settings). Make sure to open the Quick Scan Filter Settings and verify if the market is added under the 'Exclude markets' field.
  • Copy market name (Select this option to copy the corresponding market to the clipboard)
  • Add to watchlist (Selecting this option to add the corresponding market to the watchlist)
  • Set color tag (Select this option to add a color tag to the corresponding market)


Note that the volume for Quick Scan Notifications is configured under Settings>Global Notification Settings


Troubleshooting


No Results from Quick Scan


Follow these steps to get the Quick Scanner going again.


  1. Restart the Quick Scan by selecting OFF from the Filter Dropdown menu, then select the saved filter again.



  1. When using the Desktop App, ensure the most recent version is installed by navigating to Settings > Check for Updates


  1. Force Reload the App using Shift + Ctrl + R or Shift + CMD + R


  1. If the current filter settings are very restrictive (e.g. short time frame combined with large percentage thresholds), first verify that notifications are working properly by creating a test filter with less strict parameters — for example, a 30-minute time frame, 2% rise/drop percentages, and a larger number of exchanges.



  1. Reboot the device.
To test the Quick Scan try less restrictive settings and more exchanges

Quick Scan Notifications But No Sound


Please see our documentation on Mastering Alerts (sounds) on Altrady


Updated on: 14/01/2026

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