Stop Bots from Answering Your Survey

BlockSurvey's built-in bot prevention automatically blocks spam and automated submissions, protecting your data quality from the moment your survey goes live. No setup. No configuration. Always on.

14-day free trial
AI-powered insights
End-to-end encrypted
BlockSurvey social proof
G2 Crowd
4.8 Star Rating
BlockSurvey social proof
Capterra
4.9 Star Rating

Trusted by Leading Brands
for Secure, Privacy-First Surveys

Pepsico
UN Org
City of Columbia
University of South Carolina
Bucknell
Southwestern Michigan College
Brave Browser

Why Choose BlockSurvey for Bot Prevention?

Built-in Bot Protection
Built-in Bot Protection
Bot prevention is enabled by default for all surveys, new and existing. There's nothing to configure and no option to accidentally leave it off. Your surveys are protected from day one.
Genuine Respondents. Clean Data.
Genuine Respondents. Clean Data.
Built-in verification detects and blocks non-human traffic before it reaches your dataset. Every response you see came from a real person, not an automated script.
Minimal Impact on Real Respondents.
Minimal Impact on Real Respondents.
Most respondents won't notice anything. In some cases a quick, lightweight verification step may appear to confirm the user is human, nothing more than that.

How Bot Prevention Keeps Your Survey Data Trustworthy?

  • Better Data Quality
    Better Data Quality
    Bot submissions inflate response counts and introduce junk data. Block them at the source and every response in your dataset is one you can actually use. Cleaner data means faster, more confident analysis, no time wasted filtering out noise.
  • Protect Your Survey Budget
    Protect Your Survey Budget
    Fake responses waste the responses quota you've paid for. Bot prevention ensures every response counted against your plan came from a real person. Also no inflated numbers giving a false sense of completion, you know exactly when you have enough genuine data to act on.
  • Reduce Survey Abuse
    Reduce Survey Abuse
    Bots aren't just random, some are targeted. Competitors, bad actors, or spam networks can flood your survey to corrupt results intentionally. Bot prevention stops abuse before it starts.

How BlockSurvey's Bot Prevention Works?

Built-In CAPTCHA Validation

BlockSurvey uses built-in CAPTCHA validation, running in the background on every survey. It detects and blocks automated bots without requiring manual setup from survey creators or extra steps from respondents.

Built-In CAPTCHA Validation

Browser Fingerprint Analysis

Analyses unique browser characteristics to identify suspicious or duplicate automated sessions. Bots mimicking real browsers are caught where simpler checks miss them.

Browser Fingerprint Analysis

Headless Browser Detection

Identifies bots running automation tools like Playwright and Puppeteer without a real browser environment. Detected and blocked silently before the submission reaches your data.

Headless Browser Detection

Real-Time Behaviour Tracking

Monitors genuine human interaction signals, mouse movement, clicks, and typing on every session. No interaction signals means no humans. Blocked before submission.

Real-Time Behaviour Tracking

Hidden Honeypot Fields

Invisible fields embedded in every survey that real respondents never see. Bots that fill them out are caught and blocked automatically, no human ever triggers them.

Hidden Honeypot Fields

Choose a plan that's right for you

Join 500+ members who use BlockSurvey to protect their respondents' data and privacy.

No monthly limits with our Yearly Plan. All feature quotas credited upfront!
Standard
Unlimited surveys with 6,000 responses/yr
$49
$
39
/mo

Unlimited surveys
6,000 responses per year
AI-powered survey creation
Collect partial responses
Spam prevention
Duplicate response prevention
Skip and display logic
Respondent notifications
Multi-language survey (100+ languages)
Redirect respondents to a web page
Slack, 2+ integrations
Email support within 48h
Premium
Unlimited surveys with 24,000 responses/yr
$99
$
79
/mo

Everything in Standard +
24,000 responses per year
AI follow-up questionnaire
Add your branding
Watermark branding
Create custom links for surveys
Customize survey metadata
Drop off analytics
1 custom domain. e.g., survey.yourdomain.com
Remove BlockSurvey branding
Audience management
Question and answer piping
Google Sheets, 3+ integrations
Email support within 24h
Team
Unlimited surveys with 60,000 responses/yr
$149
$
119
/mo

Everything in Premium +
60,000 responses per year
AI data analysis
AI Data Encoding
NPS, CSAT, and CES
Market Research Questions
Run a campaign
Data lookup / Embedded Data
3 custom domain. e.g., survey.yourdomain.com
GDPR Compliance(DPA Issued)
HIPAA Compliance(BAA Issued)
MS Power BI, Zendesk, 4+ integrations
Email support within 12h
Free Design and Onboarding Session
Enterprise
For organizations to operate with scalability, control, and security.
Let's Talk

Everything in Team +
Unlimited seats
High-volume
Single Sign-On (SAML)
Free migration
Personalized training & onboarding
Priority feature requests
Priority support

What people say

Join 500+ happy customers worldwide who are already using our amazing product.

G2 BadgesG2 BadgesG2 BadgesG2 BadgesG2 Badges

Secure by Design - It's for Everyone

Security isn't an afterthought for us; it's a cornerstone. BlockSurvey meets and exceeds industry-leading standards, including ISO 27001, SOC2, FERPA, HIPAA and GDPR, to keep your data safe.

BlockSurvey is a ISO 27001 certified companyBlockSurvey is a SOC 2 certified companyFERPA CompliantHIPPA-CompliantGDPR Compliant

Frequently asked questions

How does BlockSurvey detect bots in surveys?

BlockSurvey uses multiple detection layers running simultaneously on every survey. This includes hidden trap fields that real users never see but bots fill automatically, headless browser detection that catches automation tools like Playwright and Puppeteer, and behaviour tracking that looks for genuine human interaction signals like mouse movement, clicks, and typing. Any submission that fails these checks is blocked silently.

What is behaviour detection and how does it work?

Behaviour detection monitors how a session interacts with the survey page before submitting. Real users move a mouse, click elements, and type, all of which leave interaction signals. A session with none of these signals is flagged as automated and blocked. This catches bots that attempt to submit forms directly without properly loading or interacting with the page.

Do bots know they've been blocked?

No. When a bot is detected, BlockSurvey blocks the submission silently. The bot receives no error message and appears to have submitted successfully. This prevents bad actors from learning their approach was detected and adapting to bypass it.

Do I need to set up bot prevention for each survey?

No. Bot prevention is enabled by default on all BlockSurvey surveys, including existing ones. There is no setup required and no option to disable it. Protection is active the moment your survey goes live.

Will bot prevention affect real respondents?

Rarely. Most respondents complete surveys without noticing anything. In some cases, a brief lightweight verification step may appear. It takes only seconds and does not interrupt the survey flow. Genuine human behaviour is never blocked.

Can I use bot prevention together with other features to control who responds?

Yes. Bot prevention works alongside Prevent Duplicate Submission, IP Restriction, Email Verification, Social Media Gating, and Token Gating. Together these features provide layered protection by blocking bots at the automated level while controlling human respondent eligibility.

Scripts are blocked. This site won’t work properly. If you’re using Brave, click the Shields icon and turn off Block scripts. Otherwise disable your ad blocker for this site.