How SurveyGuard works
From one script tag
to a clean dataset
Every submission is scored the moment it arrives — across email,
network, device, behavior and answer quality — so you know
exactly which responses to keep.
The flow
Four steps from install
to a clean dataset
STEP 01
Install
Add one script tag to your survey page. It attaches to your forms automatically.
STEP 02
Collect
Each submission is analyzed in the background while the respondent finishes.
STEP 03
Score
Five signal categories combine into a single Trust Score from 0 to 100.
STEP 04
Act
Low-risk responses pass, borderline ones are flagged, high-risk ones can be blocked.
Install
Live in under
two minutes
Paste the SDK before the closing body tag. SurveyGuard detects form submissions on its own — configuration is optional.
- Auto-attaches to the forms on your page
- Optionally blocks high-risk submissions silently
- Scores, flags and risk levels stay in your dashboard
survey.html
<script src="https://cdn.surveyguard.ca/sdk.js"></script> <script> SurveyGuard.init('YOUR_API_KEY', { blockHighRisk: true, // silently block high-risk showWarnings: false, // respondents never see scores riskThreshold: 50 // 0–100 }); </script>
The Trust Score
Five signal categories.
One clear number.
Each category is scored on its own, then combined into a weighted average from 0 to 100. Higher means more trustworthy.
If a category has no data for a response — or isn’t included in your plan — its weight is shared proportionally across the others, so the score stays comparable.
Trust Score v2
Category weight
Disposable domains, spam traps, domain age, MX records
Network & IP
VPNs, proxies, datacenter IPs and IP reputation
Device
Device fingerprinting and duplicate devices
Behavior
Completion speed, interaction patterns and submission velocity
Answer quality
Open-text gibberish and straight-lining
Decisions
Every response lands
in one of three bands
Low risk
80 – 100
Trust Score
Passes straight through to your results.
Medium risk
50 – 79
Trust Score
Flagged in your dashboard so your team can review it.
High risk
0 – 49
Trust Score
Blocked silently when blockHighRisk is on — the respondent only sees a generic error.
Fraud details are never shown to respondents — scores, flags and risk levels live only in your dashboard.
Integrations
Works with the way you
already collect responses
JavaScript SDK
One script tag auto-attaches to the forms on your survey page.
Custom forms
Call SurveyGuard from your own submit handler and decide what happens next.
Server-side API
POST each response to /v1/responses with your API key.
Survey platforms
Forward Typeform or Google Forms submissions through a webhook.