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Is heyflow.app a Scam? Security Check Results - Heyflow GmbH

heyflow.app Security Report Summary

heyflow.app received a security score of 71 out of 100 in Guard's comprehensive security analysis, classified as "Moderate Risk". This report covers Heyflow GmbH's website security posture. Heyflow GmbH operates in the Technology industry in Germany.

Heyflow GmbH operates a sophisticated SaaS platform focused on converting website visitors into qualified leads through interactive, no-code funnels and landing pages. The company targets lead generation marketers and businesses seeking to optimize paid marketing campaigns with a comprehensive solution that includes over 50 integrations, analytics, and customization options. Their market position is solid, supported by thousands of customers and positive reviews on major platforms like G2 and Capterra. Technically, Heyflow leverages modern web technologies including Eleventy for static site generation, Cloudflare for DNS and CDN, and Matomo alongside Google Analytics for data insights. The website is fast, mobile-optimized, and SEO-friendly, reflecting a mature digital infrastructure. Security-wise, the site enforces HTTPS, employs clientTransferProhibited domain status, and integrates consent management via Usercentrics, although explicit security headers and a dedicated security policy page are absent. Overall, Heyflow demonstrates a strong security posture with room for improvement in transparency and incident response readiness. The business is credible, transparent, and compliant with GDPR, making it a trustworthy platform in the marketing technology space.

The security scan identified 26 findings across security headers, SSL/TLS, DNS health, email security, GDPR compliance, and NIS2 compliance analysis modules.

Technologies detected: Eleventy static site generator, Cloudflare DNS and CDN, Matomo analytics, Google Tag Manager, Usercentrics consent management, Intercom chat widget, Flickity carousel, Custom fonts (APK Protocol).

About this security scan

Guard performs automated security assessments of websites by analyzing SSL/TLS certificates, HTTP security headers, DNS configuration, email authentication protocols (SPF, DKIM, DMARC), GDPR compliance indicators, NIS2 directive compliance, network exposure, and AI-powered business intelligence. Each report provides domain-specific findings, risk scores, and actionable recommendations.

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Is heyflow.app Safe? Security Analysis for Heyflow GmbH

https://heyflow.app

Check if heyflow.app is a scam or legitimate. Free security scan and reviews.

TechnologyGermanymedium
Eleventy static site generatorCloudflare DNS and CDNMatomo analyticsGoogle Tag ManagerUsercentrics consent management+3 more
Analyzed 10/25/2025Completed 9:13:18 AM5mo ago
71
Security Score
MEDIUM RISK

Below Technology avg (72)

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Domains scanned

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Domainheyflow.app
Access tierFull report or marketing add-on

Digital reports are delivered immediately after payment. By continuing you acknowledge the withdrawal waiver described in our Returns & Refunds policy.

VisaMastercardApple PayGoogle Pay

Secure payments processed via EveryPay. Prices in EUR; Incl. 21% VAT.

SEQ SIA

Lastadijas 12 k-3, Riga, Latvia, LV-1050

Reg. No. 40203410806 • VAT LV40203410806

Support: guard@offseq.com+371 2256 5353

AI Summary

Heyflow GmbH operates a sophisticated SaaS platform focused on converting website visitors into qualified leads through interactive, no-code funnels and landing pages. The company targets lead generation marketers and businesses seeking to optimize paid marketing campaigns with a comprehensive solution that includes over 50 integrations, analytics, and customization options. Their market position is solid, supported by thousands of customers and positive reviews on major platforms like G2 and Capterra. Technically, Heyflow leverages modern web technologies including Eleventy for static site generation, Cloudflare for DNS and CDN, and Matomo alongside Google Analytics for data insights. The website is fast, mobile-optimized, and SEO-friendly, reflecting a mature digital infrastructure. Security-wise, the site enforces HTTPS, employs clientTransferProhibited domain status, and integrates consent management via Usercentrics, although explicit security headers and a dedicated security policy page are absent. Overall, Heyflow demonstrates a strong security posture with room for improvement in transparency and incident response readiness. The business is credible, transparent, and compliant with GDPR, making it a trustworthy platform in the marketing technology space.

Detected Technologies

Eleventy static site generatorCloudflare DNS and CDNMatomo analyticsGoogle Tag ManagerUsercentrics consent managementIntercom chat widgetFlickity carouselCustom fonts (APK Protocol)

7 urgent findings need attention

7 high

Continuous monitoring

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Guard tracks your live infrastructure daily: certificate expiry, DNS & mail authentication drift, uptime changes, subdomain inventory, and unexpected tracker or content shifts. A full timeline captures every diff so you can prove remediation and spot regressions instantly.

Security drift alerts

Risk score drops, new high-severity issues, and header hardening gaps

Compliance watch

GDPR / NIS2 posture changes with governance evidence snapshots

Infrastructure surface

Unexpected open services, SSL expiry, DNS & email authentication changes

Content & tracker intelligence

Marketing tech shifts, analytics drift, and AI recommendation updates

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Security Headers

7 findings

30/100

GDPR Compliance

3 findings

65/100

NIS2 Compliance

6 findings

47/100

Email Security

3 findings

85/100

🧠AI Business Intelligence

Technology stack, business insights, and market analysis powered by AI.

Business Intelligence

Market & Strategic Analysis

Heyflow's business model centers on providing an all-in-one marketing funnel and landing page builder that reduces complexity and cost for marketers. Their competitive advantage lies in combining multiple tools into a single platform with extensive integrations and customization capabilities. Revenue streams likely include tiered subscription plans ranging from individual to enterprise levels. The target customer segments include B2B and B2C marketers, agencies, and enterprises across various industries such as solar, real estate, insurance, and financial services. Growth indicators include a large customer base, positive user reviews, and continuous product updates. The partnership ecosystem includes integrations with major platforms like Google, Meta, LinkedIn, and TikTok. Strategic observations highlight Heyflow's focus on ease of use, mobile-first design, and data-driven optimization to capture and convert leads effectively.

Extracted Contact Information

Marketing Intelligence Data

Company Registration

Legal Name:

Heyflow GmbH

VAT Number:

DE328081264

Security Posture Analysis

Comprehensive Security Assessment

Heyflow exhibits a mature security posture with mandatory HTTPS, domain transfer protection, and GDPR-compliant consent management. The platform incorporates lead validation features such as phone number verification and SMS OTP to ensure data quality. However, the absence of a publicly accessible security policy and incident response contacts indicates gaps in transparency and preparedness. No vulnerabilities or exposed sensitive data were detected in the analysis. The use of reputable third-party services and modern web standards further strengthens security. Compliance with GDPR is evident, but additional certifications or formal frameworks like ISO 27001 are not disclosed. Overall, Heyflow maintains a secure environment suitable for handling marketing data, with recommendations to enhance policy disclosures and incident readiness.

Strategic Recommendations

Priority Actions for Security Improvement

1

Publish explicit security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance browser security.

Observations

AI-powered comprehensive website and business analysis.

AI-Enhanced Website Analysis

Business Insights

Company:

Heyflow GmbH

Description:

Create interactive lead funnels, multi-step forms and customized landing pages that drive conversions and engage your website visitors—without writing any code.

Key Services:
No-code funnel builderInteractive landing pagesLead qualification50+ integrationsAnalytics and A/B testingCustom emails and follow-upsBuilt-in payments and bookings
Content Quality:

excellent

Branding:

consistent

Technical Stack

Technologies:
Eleventy static site generatorCloudflare DNS and CDNMatomo analyticsGoogle Tag ManagerUsercentrics consent managementIntercom chat widgetFlickity carouselCustom fonts (APK Protocol)
Frameworks:
Eleventy
Platforms:
CloudflareNetlify (implied by .netlify/functions in URLs)
Performance:

fast

Mobile:

excellent

Accessibility:

good

SEO:

excellent

Security Assessment

Security Score:
85/100
Best Practices:
  • HTTPS enforced
  • ClientTransferProhibited domain status
  • Consent management implemented
  • Lead validation features (phone validation, SMS OTP)

Analytics & Tracking

Services:
MatomoGoogle Analytics
Tracking Level:moderate
Privacy Compliance:good

Advertising & Marketing

Ad Networks:
Google Ads
Tracking Pixels:
MatomoFacebook Pixel (implied by Meta integration)
Marketing Tools:
IntercomUsercentrics
Transparency Level:good

Website Quality Assessment

Design Quality:excellent
User Experience:excellent
Content Relevance:excellent
Navigation Clarity:excellent
Professionalism:excellent
Trustworthiness:high

Key Observations

1

Website is professionally designed and well-structured.

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🛡️Security Headers

HTTP security headers analysis and recommendations.

Security Headers

HTTP security headers analysis

30/100
Score

Missing X-Frame-Options header

HIGH

Prevents clickjacking attacks

Missing X-Content-Type-Options header

MEDIUM

Prevents MIME type sniffing

Missing Content-Security-Policy header

HIGH

Controls resources the browser is allowed to load

Missing X-XSS-Protection header

MEDIUM

Legacy XSS protection (deprecated but still recommended)

Missing Referrer-Policy header

LOW

Controls referrer information sent with requests

Missing Permissions-Policy header

MEDIUM

Controls browser features and APIs

Sensitive data may be cached

LOW

Cache-Control header should include "no-store" for sensitive pages

👤GDPR Compliance

Privacy and data protection assessment under GDPR regulations.

GDPR Compliance

Privacy and data protection assessment

65/100
Score

No Cookie Policy found

HIGH

GDPR requires clear information about cookie usage

No Cookie Consent Banner found

HIGH

GDPR requires explicit consent for non-essential cookies

No Data Protection Officer mentioned

LOW

Large organizations may need to designate a DPO under GDPR

GDPR Compliance Analysis

Privacy Policy85% confidence
Cookie Policy0% confidence
Contact Information Found90% confidence
emailphone

🛡️NIS2 Compliance

Network & Information Security Directive compliance assessment.

NIS2 Compliance

Network & Information Security Directive

47/100
Score

No vulnerability disclosure policy

MEDIUM

NIS2 encourages coordinated vulnerability disclosure

No incident response procedures found

HIGH

NIS2 requires documented incident response and business continuity plans

No business continuity planning found

MEDIUM

NIS2 emphasizes operational resilience and business continuity

No security contact information

HIGH

NIS2 requires clear incident reporting channels

No vulnerability reporting mechanism

MEDIUM

Clear vulnerability reporting supports coordinated disclosure

No NIS2 reference found

LOW

Consider explicitly mentioning NIS2 compliance efforts

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📧Email Security

SPF, DKIM, and DMARC validation and email security assessment.

Email Security

SPF, DKIM, and DMARC validation

85/100
Score

No BIMI Record

LOW

BIMI displays brand logos in email clients

No MTA-STS Policy

MEDIUM

MTA-STS enforces TLS for email delivery

No TLS-RPT Record

LOW

TLS-RPT provides reporting for email TLS issues

SPF
Sender Policy Framework
DKIM
DomainKeys Identified Mail
DMARC
Domain-based Message Authentication
MX Records
Mail Exchange Records
BIMI
Brand Indicators
MTA-STS
Mail Transfer Agent Security
TLS-RPT
TLS Reporting
DNSSEC
DNS Security
SPF Details
Record:
v=spf1 include:_spf.google.com include:amazonses.com include:9425993.spf10.hubspotemail.net ~all
DNS Lookups:3/10
Policy:~all
DKIM Selectors Found
Selector:google(1416-bit rsa)
DMARC Details
Policy:quarantine
Aggregate Reports:0a9b4ff2330d407b89196a2c3421b1e6@dmarc-reports.cloudflare.net
Forensic Reports:mirko.nitschke+dmarcruf@heyflow.com

🏆SSL/TLS Security

Certificate validity and encryption analysis.

SSL/TLS Security

Certificate validity and encryption analysis

75/100
Score

SSL Certificate Expires Within 90 Days

MEDIUM

SSL certificate expires in 84 days

Weak SSL Key Length

HIGH

SSL certificate uses 256-bit key, which is considered weak

Partial SSL/TLS Assessment

LOW

Completed 2 of 4 security checks due to time constraints

Certificate Details

Subject:heyflow.com
Issuer:WE1
Valid Until:1/17/2026 (84 days)
SANs:heyflow.com, *.heyflow.com

OCSP Status

OCSP Stapling Disabled

📊DNS Health

DNS configuration and security assessment.

DNS Health

DNS configuration and security assessment

80/100
Score

DNSSEC Not Enabled

MEDIUM

DNSSEC is not configured for this domain

CAA Records Not Configured

LOW

Certificate Authority Authorization (CAA) records not found

Domain Delete Lock Not Enabled

LOW

Domain can be deleted without additional verification

Domain Registration Details

Domain Age
10 years(mature)
Expiry Risk
low(expired)
Protection Level
basicDNSSEC OFF

DNS Records

A Records:104.26.10.196, 104.26.11.196, 172.67.74.119
AAAA Records:2606:4700:20::681a:ac4, 2606:4700:20::681a:bc4, 2606:4700:20::ac43:4a77
Name Servers:
kelly.ns.cloudflare.com
mark.ns.cloudflare.com
MX Records:
1: aspmx.l.google.com
5: alt2.aspmx.l.google.com
5: alt1.aspmx.l.google.com
10: alt4.aspmx.l.google.com
10: alt3.aspmx.l.google.com
SOA:Serial: 2386416765, TTL: 1800s

DNSSEC Status

DNSSEC Not Enabled

DNS Performance

Resolution Time:85ms

SPF Analysis

SPF Record:
v=spf1 include:_spf.google.com include:amazonses.com include:9425993.spf10.hubspotemail.net ~all

Network Security

Port scanning and network exposure analysis.

Network Security

Port scanning and network exposure analysis

100/100
Score

Good Network Security Posture

LOW

No unnecessary services detected on common risky ports

How does heyflow.app compare?

See how heyflow.app stacks up against similar websites in the same industry.

🔧Technical Analysis

Detailed technical findings and analysis from AI assessment.

Technical Analysis

Comprehensive security assessment findings

Additional Findings

The website is built using Eleventy, a modern static site generator, ensuring fast and efficient content delivery. Hosting appears to be on Netlify with Cloudflare providing DNS and CDN services, contributing to excellent performance and uptime. The tech stack includes Matomo and Google Analytics for analytics, Usercentrics for consent management, and Intercom for customer engagement. The site is mobile-optimized with responsive design and accessibility features. SEO is well-implemented with proper meta tags, Open Graph, and JSON-LD structured data. The use of modern fonts and CSS variables indicates a contemporary front-end approach. No technical debt or legacy technologies were detected, positioning Heyflow well for scalability and maintainability.
Professional PDF & Marketing Data

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PDF Report & Export

PDF download, email delivery, unlock code

39.90 €one-time • Incl. 21% VAT

Marketing Intelligence

Contact emails, phone numbers & warm leads

49.90 €one-time • Incl. 21% VAT

Plan Comparison

FeaturePDF ReportMarketing+
Full security analysis
Professional PDF export
Email delivery
Lifetime access + unlock code
Contact emails & phones
Marketing outreach data

Already purchased?

Order summary

Domainheyflow.app
Access tierFull report or marketing add-on

Digital reports are delivered immediately after payment. By continuing you acknowledge the withdrawal waiver described in our Returns & Refunds policy.

VisaMastercardApple PayGoogle Pay

Secure payments processed via EveryPay. Prices in EUR; Incl. 21% VAT.

SEQ SIA

Lastadijas 12 k-3, Riga, Latvia, LV-1050

Reg. No. 40203410806 • VAT LV40203410806

Support: guard@offseq.com+371 2256 5353

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