AI-Powered Fraud Detection
Stop survey fraud
before it starts.
SurveyGuard checks email reputation, IP signals, device
fingerprints and behavior in real time, before a response ever
hits your database.
One script tag. Setup in under two minutes.
Built for research teams, survey panels and data-quality leaders
4
detection layers
13
independent IP signal checks
< 2 min
to install the SDK
Real-time
analysis on every submission
Real-time protection
Clean data, without the
manual cleanup.
Multiple layers of analysis work together so only genuine
respondents make it into your results.
01
Detect
Every submission is screened across email,
network, device and behavior signals the
moment it arrives.
02
Score
Layered signals are combined into a single
trust score your team can read at a glance.
03
Protect
Fraudulent responses are flagged or stopped
before they pollute your dataset.
Fraud Detection
Combine response signals to
stop survey fraud
SurveyGuard analyzes behavioral, device, IP, and response signals in real time to identify suspicious respondents and protect the quality of your survey data.
Real-time Signals
Device Fingerprinting
A persistent fingerprint for every device catches repeat respondents, even after they clear cookies or go incognito.
Respondent A
respondent.a@email.com
- Flagged
2linked profiles
- Windows
- Chrome
respondent_a2@email.com
Match 98%
- Device match
- Shared network
r.a.survey123@email.com
Match 76%
- Same device
- Similar location
Real-time Signals
Account Linking
Connects respondents who share a device, network or email pattern, so one person can’t pose as many.
John Carter
john.carter@email.com
- New York, USA
Real
Sarah Kim
sarah.kim@email.com
- London, UK
Suspicious
Alex Lee
alex.lee@email.com
- Bangkok, Thailand
Fake
Real-time Signals
Location Spoofing
Compares IP, timezone and device locale with the location a respondent claims, flagging anyone faking where they are.
john.doe@mail.com
New Signup
- Analyzing
Valid Email
Looks genuine
Real
Disposable Email
Temporary or risky
Fake
Identity Signals
Email Intelligence
Checks every address for disposable domains, spam traps, domain age and valid MX records before a response is accepted.
AT&T
Carrier
Real line
Not VoIP / Not Burner
Mobile
Device type
Identity Signals
Phone Intelligence
Verifies the carrier and line type behind each number, separating real mobile lines from VoIP and burner numbers.
Real-time Signals
Bot Detection
Mouse movement, keystroke cadence and timing patterns separate real people from scripts, headless browsers and bots.
Device
iPhone
Browser
Chrome
OS
macOS
Device Risk
High
Real-time Signals
Device Risk
Scores the device, browser and operating system behind every response, surfacing emulators and spoofed environments.
- Moscow, RU
- Moscow, RU
Proxy
Device
iPhone
Browser
Chrome
OS
macOS
Device Risk
High
IP 168…101
Fake
Real-time Signals
Proxy & VPN
13 independent checks uncover VPNs, proxies, Tor exit nodes and datacenter IPs, so masked traffic can’t slip through.
The survey Guard Platform
Powerful signals to detect and
prevent survey fraud
Combine response, behavioral, device, and network signals to identify suspicious respondents and protect the integrity of your survey data.
Detect suspicious responses instantly
Analyze response patterns, completion speed, and answer quality to identify suspicious or fraudulent submissions.
Response Quality
High
Answer Consistency
Normal
Completion Speed
Suspicious
Identify risky devices and connections
Evaluate device, IP, location, VPN, and proxy signals to uncover suspicious activity.
New York, US
IP: 192.168.1.1
Device
Trusted
IP Reputation
Clean
Location
United States 🇺🇸
VPN / Proxy
Not Detected
Duplicate Device
3 responses
Understand how respondents behave
Monitor respondent behavior throughout the survey to detect bots, automation, and unusual activity.
Mouse Movement
Normal
Time on Question
4.2s
Bot Activity
Detected
Catch fraud before it reaches your data
Screen and flag suspicious responses before they can affect your survey results.
Response ID
#SG-45892
High Risk
Risk Score
82 / 100
Reason
Bot behavior detected
Completion Time
12 seconds
IP Address
192.168.1.1 (VPN)
Action
Flagged
Score every response in real time
Combine multiple fraud signals into a clear trust score for every response.
92 / 100
Trust Score
Low Risk
Response Quality
High
Behavior Pattern
Normal
IP Reputation
Clean
Device Signal
Trusted
Create rules that match your risk tolerance
Build custom rules to automatically flag, review, or block suspicious responses.
IF
Response Speed
< 2 sec
AND
Bot Signal
= Detected
AND
IP Reputation
= High Risk
THEN
Response Status
= Flagged
SurveyMonkey
Integrations
Connect SurveyGuard to your favorite tools
Integrate SurveyGuard with the platforms you already use to detect suspicious responses and keep your workflows running smoothly.
Comprehensive detection
Four layers. One clear signal.
Each layer catches what the others miss. Together they protect
your survey integrity.
Email Analysis
Detect disposable, spam-trap and high-
risk emails before they pollute your
data. Every address is checked against
reputation signals at submission time.
Network
IP Reputation
VPN, proxy, Tor and bot detection with 13 independent signal checks, so masked and automated traffic is surfaced instantly.
Device
Device Fingerprint
Track devices across sessions and detect emulators or spoofed environments, catching repeat respondents even when they change identity.
Behavior
Behavioral Analysis
Mouse tracking, keystroke patterns and completion-time anomaly detection separate real people from scripts and speeders.
Email Analysis
respondent R-20482
Disposable domain
Flagged
Spam-trap match
Clear
Domain age
3 days
MX records
Valid
70
layer risk
Blocked
IP Reputation
respondent R-20482
VPN / proxy
Detected
Tor exit node
No
Datacenter ASN
Yes
Signals checked
13 / 13
76
layer risk
Blocked
Device Fingerprint
respondent R-20482
Emulator
Detected
Prior sessions
3 matches
Spoofed UA
Likely
Timezone mismatch
Yes
82
layer risk
Blocked
Behavioral Analysis
respondent R-20482
Mouse entropy
Low
Paste events
7
Completion time
38s (p2)
Keystroke cadence
Robotic
88
layer risk
Blocked
For Developers
Deploy fast, detect faster
Add SurveyGuard to your surveys in minutes. Detect suspicious responses
in real time and monitor everything in a single dashboard.
Plug & Play Integration
Works with web, mobile and server-side. Get started in minutes.
No Training Required
No complex setup or machine learning. Real protection from day one.
Privacy-Focused
Built with data privacy in mind. Compliant with global standards.
Full Data Ownership
Monitor responses, view risk scores and manage everything in one dashboard.
How it works
Protection that's live in
minutes.
1
Add one script tag
Embed the SDK on your survey page.
Setup takes less than two minutes.
2
Collect responses
The fraud engine analyzes every
submission automatically, in real time.
3
Review insights
An AI-powered dashboard shows trust
scores and fraud patterns at a glance.
survey.html
<script src=“https://cdn.surveyguard.ca/sdk.js”
data-key=“YOUR_PUBLIC_KEY”></script>
Trust scores
Complex detection
underneath. Simple
decisions on top.
Dozens of signals collapse into one trust score and a clear
status — so your team knows exactly which responses to keep.
- Trusted responses flow straight through
- Borderline responses are flagged for review
- High-risk responses are blocked automatically
Respondent
R-20484
Review
Trusted
0–39
Review
40–79
Blocked
80–100
Risk score
64
Top risk signals
Datacenter VPN detected
+28
Completion time in fastest 2%
+21
Email domain registered 3 days ago
+15