Detect, flag, and drop bot traffic at the source to improve data quality and reduce costs in your RudderStack pipeline.
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enterprise
8 minute read
This guide walks you through RudderStack’s bot management feature in detail and explains how to use it for detecting and filtering bot traffic for web sources.
Overview
RudderStack’s Bot Management feature lets you detect, flag, and drop bot traffic on web sources before it enters your data pipelines. By identifying and managing bot events early in your data flow, you can significantly improve data quality and reduce unnecessary costs.
Note that:
The bot management feature is available only in RudderStack’s Enterprise plan.
You must have Org Admin privileges to configure bot management for your workspace.
This feature is only applicable for the following web sources:
The current implementation focuses on user agent-based detection and does not include behavioral detection.
Some sophisticated bots may evade detection if they use standard user agents.
What is bot management?
Bot management is a feature that identifies web events generated by bots, then gives you the ability to flag or drop those events.
With this feature, you can:
Detect bot events on web sources.
Flag bot events for downstream analysis.
Block bot events entirely.
Create global bot management settings for all web sources.
Apply custom bot management settings for individual web sources.
Monitor bot event volume patterns through the source Events view.
Which pain points does bot management address?
Inconsistent bot detection: Previously, each analytics platform in your stack implemented its own approach to bot detection, creating inconsistent visitor counts and engagement metrics across platforms. Bot management provides a single, reliable filtering layer that standardizes bot detection across your web sources.
Data quality degradation: Bot events mixed with legitimate customer events corrupts datasets, leading to unreliable conversion metrics and misleading signals about feature usage. Bot management ensures your teams can work with clean, accurate data.
Unnecessary costs: Bot events generate unwanted costs across the stack, from piplines to data stores to analytics tools. Bot management gives you the tools to control cost at every stage.
Marketing inefficiency: Marketing and advertising budgets are often consumed by non-human bot events, inflating customer acquisition costs and making campaign performance metrics unreliable. Bot management helps ensure your marketing efforts target real users.
How bot management works
This section explains the bot detection, flagging, and dropping mechanisms in detail.
Bot detection
To detect bots, RudderStack analyzes user agent strings in the context of each event payload.
RudderStack provides two detection options:
Default detection: Uses a predefined list of known bot patterns in the user agent string to identify common bots. This list includes common AI crawlers.
IAB list integration: Uses the International Advertising Bureau (IAB) bot list to identify bots in the user agent string. If you are a member of the IAB or have purchased the IAB bot list, provide the IAB bot list to the RudderStack team to use this method.
Bot event management actions
When bot events are detected, RudderStack offers two options for taking action:
1. Forward events with a flag
When enabled, RudderStack forwards the event with bot details in the context object of the payload. Flagging payloads is useful when you want to perform deeper bot analysis in a downstream system.
In this method, RudderStack:
Adds an isBot: true flag in the root level context object
Includes a bot object with helpful details like name and url (when available)
Flagged events are ingested and not dropped, so they count towards your paid event volume.
Example of a flagged event:
{"userId":"","anonymousId":"anon-2dfb-4ba389c577037c5fdd4a","event":"Product Added","properties":{"product_id":"SKU123","product_name":"Wireless Headphones"},"context":{"ip":"11.22.33.44","userAgent":"Mozilla/5.0 (Macintosh; Crawler)","isBot":true,"bot":{"name":"OAISearchBot","url":"https://platform.openai.com/docs/bots"},"app":{"name":"Store Web App","version":"2.1.0"}},"timestamp":"2025-02-17T10:30:45.123Z","type":"track"}
2. Drop events
When enabled, RudderStack drops bot events at the gateway and they are not ingested into the pipeline. Note that these events:
Only Org Admins can configure the bot management settings.
You can configure bot management at two levels:
Workspace-level configuration
Go to Govern > Bot Management to configure bot detection, flagging, and dropping for your workspace.
Turn on the Bot Detection toggle to enable the bot detection feature in your workspace. This will enable bot detection across all web sources. You can then configure the bot management settings globally, or for specific sources in your workspace.
Workspace bot event management
This section lets you flag or drop bot events across all web sources in the workspace.
You can use the Source-level bot event management section to override the global bot management settings for specific web sources and specify the configuration per source based on your requirements.
See the below use cases for more information on how to use the settings in this section:
1. Disable bot management for a specific source
Select the source from the dropdown. You will see the Bot event management setting toggled on and the global setting selected by default.
Turn off the Bot event management toggle.
In this case, bots will still be detected, but not flagged or dropped.
2. Configure different bot management actions a specific source
Select the source from the dropdown. You will see the Bot event management setting toggled on and the global setting selected by default.
Choose a different management action setting (flag/drop).
In this case, a different bot management action will apply to the configured source. The global bot management settings will continue to apply to all the other sources.
Manage bot management in source settings
Go to the Settings tab of the source page.
Scroll down to the Bot event management.
If you have already configured the bot management settings in the Source-level bot event management section of the Govern > Bot Blocking page, then they will be reflected here.
You can view the bot event metrics for a particular source in the Events tab of that source page.
Total bot events
The Total bot events metric corresponds to the total number of non-deduplicated events generated by bots for that source.
Ingested bot events
The Ingested bot events metric corresponds to the number of deduplicated bot events ingested by the source.
Note that this event count also depends on whether the bot management settings are configured to flag or drop bot events. See the end-to-end example below for more information on how this metric is calculated.
Ingested events
The Ingested events metric corresponds to the total number of events ingested by the source. Note that this number:
Excludes dropped bot events if bot dropping is enabled
Effect of deduplication on ingested bot events
RudderStack’s Event Deduplication feature ensures that the same event is not processed multiple times, with the goal of achieving exactly-once delivery — this is important because events can sometimes be sent more than once due to retries.
How event deduplication works
Every event sent through RudderStack SDKs is assigned a uniquemessageId. This ID remains the same even if the event is retried due to delivery failures (caused by network issues or various other factors).
When RudderStack receives an event, it checks if the messageId has already been processed. If it has, the event is dropped; otherwise, the event is processed and the messageId is stored for future reference.
Deduplication has more effect on bot events than non-bot events, as bots generate a lot of events with the same messageId which end up getting deduplicated.
As a result, while you might see a higher number of bot events in the Total bot events metric, whereas the Ingested bot events count can be lower.
End-to-end example
This section illustrates how deduplication affects bot event metrics.
Consider a JavaScript SDK that sends 1000 events, where:
450 events are from bots, with only 300 unique bot events
550 events are unique, non-bot events
Event deduplication is enabled by default
Case 1: Bot events are forwarded with a flag
The following table shows how the metrics look like when bot management is configured to forward events with flag:
Metric
Value
Breakdown
Total bot events
450
300 unique bot events
150 duplicate bot events
Ingested bot events
300
300 unique bot events
Ingested events
850
550 non-bot events
300 deduplicated bot events (included because of the bot management setting)
Case 2: Bot events are dropped
The following table shows how the metrics look like when bot management is configured to drop bot events:
Metric
Value
Breakdown
Total bot events
450
300 unique bot events
150 duplicate bot events
Ingested bot events
0
Excluded because of the bot management setting
Ingested events
550
550 non-bot events
0 bot events (excluded because of the bot management setting)
Considerations for implementing bot management
Keep the following points in mind before you implement the bot management feature:
Good bots vs. bad bots
When enabling the bot detection and management feature, consider the different types of bots that may interact with your site.
Good bots
Search engine crawlers like Google or Bing
Price aggregators
Helpful for SEO and product discovery
Generate events that don’t represent customer behavior
Particularly common in competitive ecommerce sectors
Impact on data analysis
Historical data comparison: Data patterns may change after enabling bot dropping and it is likely that downstream teams will see meaningful changes in event volume.
Marketing attribution: Metrics like conversion rates and customer acquisition costs may shift.
A/B testing: Results may differ with cleaner data.
Recommendations
Start with flagging: Begin by forwarding bot events with a flag to understand your bot traffic patterns before dropping events.
Monitor bot metrics: Use the provided analytics to understand how much of your traffic is from bots.
Review flagged events: Periodically check flagged bot events to ensure legitimate traffic isn’t being misclassified.
FAQ
Does bot management work with the older JavaScript SDK versions?
The bot management feature is supported in JavaScript SDK v3.0.1 and above. RudderStack recommends using the latest version of the SDK for best results.
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