Sentry by CloudResearch
World’s First Patented Behavioral Fraud Detection, Built for Surveys and Panels.
Built to identify, prevent, and eliminate bad data before it enters your survey — combining real-time behavioral analysis, AI-assisted scoring, and advanced fingerprinting.
Overview
Why Choose Sentry?
In today’s digital research landscape, unreliable data is a major threat. Sentry is the industry’s leading data quality solution, built to identify, prevent, and eliminate bad data before it enters your survey.
Unlike other tools, Sentry combines real-time behavioral analysis, advanced on-screen event recording, and AI-assisted scoring to deliver the highest level of data validity. Our patent-protected system proactively detects and removes fraudulent activity while filtering out low-quality respondents, ensuring your research remains accurate, reliable, and actionable.
Multi-Layer Defense
Core Capabilities
Open-Ended Response Screening
AI-powered evaluation of open-ended responses helps identify fraudulent and low-quality respondents, significantly improving open-ended quality within the survey itself
Real-Time Event Tracking
Monitors respondent activity for suspicious navigation patterns, copy-pasting, excessive highlighting, and other behaviors commonly associated with fraud
Attention & Honesty Verification
Detects inattentive, dishonest, and low-effort response patterns across multiple constructs
Bot Detection with Behavioral + Device Analysis
Combines behavioral signals and device analysis to catch automated and scripted responses
Advanced Fingerprinting via DigiPrint®
Proprietary device fingerprinting technology with over 200 million evaluations
ChatGPT & AI Content Blocking
Proactively identifies and blocks AI-generated survey responses
The Process
How Sentry Works
Sentry screens every respondent in under 30 seconds using a multi-layered evaluation system — so only high-quality participants enter your survey.
Step 1 of 4
Participants Enter the Sentry Environment
Every respondent is funneled through Sentry’s pre-survey screening module for a quick 15–30 second evaluation.
Step 2 of 4
Advanced Behavioral & Technical Screening
Sentry’s multi-layered fraud detection system evaluates each respondent using real-time behavioral analysis, event tracking, AI & translation detection, geo-location tracking, and advanced fingerprinting via DigiPrint.
Step 3 of 4
Low-Quality Respondents Automatically Filtered Out
Using behavioral fail flags and technical security blocks, Sentry removes inattentive, dishonest, and fraudulent respondents — including bots, AI-generated responses, and those using translation tools.
Step 4 of 4
Only High-Quality Participants Reach Your Survey
Every respondent who enters your study meets predefined data integrity thresholds, providing a clean, representative, and fraud-free sample for your research.
Projects
Active studiesFailure Breakdown Analysis
Multi-layer screening- Duplicate IP Address Security Block 31.4%
- Inattentive Behavioral Fail 24.1%
- Tech Blocked - Translation Detected Security Block 15.8%
- Bad Fingerprint Security Block 8.91%
- + 5 more categories
Respondent Data
Q3 Brand Health Study| Respondent ID | Provider | Status | Reason | Time |
|---|---|---|---|---|
| R_xY9abz… | Provider A | Passed | — | 8m 12s |
| R_kL2qmt… | Provider B | Failed | Duplicate IP Address | 0m 47s |
| R_pQ8rsv… | Provider C | Passed | — | 9m 48s |
| R_zT5wvx… | Provider B | Failed | Bad Fingerprint | 1m 12s |
Provider Breakdown Analysis
Pass / Fail by sample providerOutcomes
Unmatched Data Quality — Proven Results
Integration
Seamless Integration & Implementation
Connected Platforms
Integration statusLive Monitoring
Real-time activityAPI Reference
Create a Sentry Projectcurl -X POST https://sentry-api.cloudresearch.com/api/v1/project \ -H "X-API-Key: $SENTRY_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "name": "Q3 Brand Health", "templateId": "sentry-titanium-default", "clientUrl": "https://survey.example.com/q3-brand-health", "languageCodes": ["en"], "locationCodes": ["US"], "locationType": "Allow" }'
Protection Template
Choose a level- 4 behavioral questions (3 of 4 required to pass)
- Maximum throughput; lowest termination rate
- 5 behavioral questions
- Strong quality with fewer terminations
- 5 behavioral + 1 AI-graded open-end
- Strongest defense against AI & bots
- ~70% pass · highest data quality
FAQs
Have More Questions?
For more on how Sentry improves research quality, see our extended FAQs.
For all projects run in Sentry, users will see a detailed breakdown of respondent quality, starting with a basic overview of the traffic that came in. Users will see the overall rates of pass/fails, and the specific markers of low-quality that Sentry detected. In addition, data is also available from Sentry's event-streaming recorder, which allows users to see how respondents interacted with each Sentry question. Sentry also provides a detailed breakdown of traffic quality across all projects and studies. This gives users insight into the quality of the sample they are receiving, including how quality compares across multiple suppliers.
Sample Quality Tracking Monitor
Sentry can be added to any online survey with traditional URL redirects or via API integration. Sentry can be used with any sample source, survey platform, or respondent device.
Attentcha is the in-survey Sentry tool that allows researchers to automatically identify participants who are not paying attention in a survey, by automatically adding attention and yea-say check questions, scoring, and quarantining low-quality participants who exhibit bad in-survey behavior.
To get early access to the tool, book a meeting here.
Device Fingerprinting alone is not sufficient to ensure high-quality data. In addition to leveraging IP-duplication blocking, Sentry uses an advanced fingerprinting technology called DigiPrint®. DigiPrint® is our proprietary device fingerprinting solution which assesses and identifies online survey respondents' unique fingerprints to manage participants and prevent duplication and fraud. Critically, Sentry also engages respondents directly with questions proven to ensure respondent quality on key domains including attention, honesty, and effortful responding.
Yes. Sentry's pre-survey solution was designed specifically to improve in-survey quality, by targeting and removing all different kinds of low-quality respondents. The result is significantly better in-survey open ended quality. When tested against competitors, Sentry significantly outperforms other solutions on the market, and usually reduces bad open ends by >50%. In addition, with Sentry protection, you will see higher in-survey response consistency, fewer attention check fails, and more accurate participant responses.
Sentry has thousands of questions across multiple Libraries. Each library has different types of questions which were developed by our team of Behavioral Scientists to ensure participant quality on a different construct. For example, there are specific libraries with questions that measure dishonesty, and others that measure basic attention, and others that measure whether participants are from a specific B2B groups they claim to be from (e.g. Nurses). Sentry automatically pulls different questions from different libraries in order to get the fullest picture of participant quality.
While participants see these questions, Sentry is using technology to track respondent behavior via mouse movements and keyboard strokes, to provide additional behavioral assessment. We are happy to provide specific examples of question types. Just reach out.
Yes. We realize that objectives vary from project to project, that's why Sentry has multiple levels and configurations that are easy to customize based on your research needs.
Any and all platforms! All Sentry needs to work is a survey-redirect link.
Yes. Sentry is ideally suited for such projects, as it can prevent duplicate traffic from coming in across suppliers. In addition, you will be able to track the same quality of all the different suppliers you use, in any project, and on all the traffic they send to your research, using the Sentry Sample Quality Tracking Monitor.
Secure Your Research Data,
Today.
Book a demo. Test the platform. See the difference.