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Is zulipchat.com a Scam? Security Check Results - Kandra Labs, Inc. Reviews

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Is zulipchat.com Safe? Security Analysis for Kandra Labs, Inc.

https://zulipchat.com

Check if zulipchat.com is a scam or legitimate. Free security scan and reviews.

TechnologyN/amedium
JavaScriptWebpackGoogle AnalyticsGoogle Tag ManagerSentry
Analyzed 10/8/2025Completed 3:39:18 AM
72
Security Score
MEDIUM RISK
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Domainzulipchat.com
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SEQ SIA

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

Reg. No. 40203410806 • VAT LV40203410806

Support: guard@offseq.com+371 2256 5353

AI Summary

Zulip, operated by Kandra Labs, Inc., is a mature and well-established technology company specializing in organized team chat solutions tailored for distributed teams. The company offers both cloud-hosted and self-hosted… Unlock the full Guard report to read the complete analysis.

Detected Technologies

JavaScriptWebpackGoogle AnalyticsGoogle Tag ManagerSentry

Security Headers

6 findings

50/100

GDPR Compliance

3 findings

65/100

NIS2 Compliance

8 findings

17/100

Email Security

1 finding

95/100

🧠AI Business Intelligence

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

Snapshot shown below. Unlock the full AI report for complete market insights, audience profiling, and step-by-step recommendations.

Business Intelligence

Market & Strategic Analysis

Zulip operates in the competitive team collaboration software market with a unique value proposition centered on asynchronous communication and open-source self-hosting. Their business model combines SaaS offerings with free and open-source software, appealing to a broad audience from small businesses to large enterprises and educational institutions. The company leverages community engagement and transparency through open-source development and detailed case studies. Their partnership ecosystem includes integrations with popular tools and platforms, although no explicit partner domains were identified. Growth indicators include a decade-long domain presence and active community channels. The company maintains a professional online presence with strong branding consistency and trust signals such as client logos and industry badges.

Security Posture Analysis

Comprehensive Security Assessment

Zulip demonstrates a mature security posture with HTTPS enforced and domain transfer protections in place. The promotion of self-hosting open-source software aligns with best practices for data control and compliance. However, the lack of DNSSEC implementation and absence of published incident response or vulnerability disclosure information represent areas for improvement. No critical vulnerabilities or exposed sensitive data were detected. The use of Sentry for error monitoring and Google Analytics for tracking is standard but requires transparent user consent mechanisms. Overall, the security culture appears proactive but could benefit from enhanced transparency and formalized incident response channels.

Strategic Recommendations

Priority Actions for Security Improvement

1

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Observations

AI-powered comprehensive website and business analysis.

A preview of your strategic observations is visible. Upgrade to unlock the full competitive positioning, trust signals, and branding checklist.

AI-Enhanced Website Analysis

Business Insights

Company:

Kandra Labs, Inc.

Description:

Zulip is an organized team chat app for distributed teams of all sizes.

Key Services:
Team chat applicationCloud-hosted chat serviceSelf-hosted open-source chat softwareIntegrations and APIsDesktop and mobile apps
Content Quality:

excellent

Branding:

consistent

Technical Stack

Technologies:
JavaScriptWebpackGoogle AnalyticsGoogle Tag ManagerSentry
Performance:

fast

Mobile:

excellent

Accessibility:

good

SEO:

good

Security Assessment

Security Score:
85/100
Best Practices:
  • HTTPS enforced
  • ClientTransferProhibited domain status
  • Open source software for self-hosting
  • Security page available

Analytics & Tracking

Services:
Google AnalyticsGoogle Tag ManagerSentry
Tracking Level:moderate
Privacy Compliance:good

Advertising & Marketing

Transparency Level:basic

Website Quality Assessment

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

Key Observations

1

Website is fully accessible with no blocking or WAF challenges.

🛡️Security Headers

HTTP security headers analysis and recommendations.

Some header findings are shown. Unlock to see the full checklist, impacted endpoints, and remediation guidance.

Security Headers

HTTP security headers analysis

50/100
Score

Weak Strict-Transport-Security configuration

LOW

Current value: "max-age=15768000" Unlock the full report to read the complete fix.

Missing Content-Security-Policy header

HIGH

Controls resources the browser is allowed to load Unlock the full report to read the complete fix.

Missing X-XSS-Protection header

MEDIUM

Legacy XSS protection (deprecated but still recommended) Unlock the full report to read the complete fix.

Missing Referrer-Policy header

LOW

Controls referrer information sent with requests Unlock the full report to read the complete fix.

Missing Permissions-Policy header

MEDIUM

Controls browser features and APIs Unlock the full report to read the complete fix.

Sensitive data may be cached

LOW

Cache-Control header should include "no-store" for sensitive pages Unlock the full report to read the complete fix.

👤GDPR Compliance

Privacy and data protection assessment under GDPR regulations.

Preview of GDPR checkpoints is visible. Unlock to reveal full evidence, policy excerpts, and DPIA guidance.

GDPR Compliance

Privacy and data protection assessment

65/100
Score

No Cookie Policy found

HIGH

GDPR requires clear information about cookie usage Unlock the full report to read the complete fix.

No Cookie Consent Banner found

HIGH

GDPR requires explicit consent for non-essential cookies Unlock the full report to read the complete fix.

No Data Protection Officer mentioned

LOW

Large organizations may need to designate a DPO under GDPR Unlock the full report to read the complete fix.

GDPR Compliance Analysis

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

🛡️NIS2 Compliance

Network & Information Security Directive compliance assessment.

You can see headline NIS2 checks. Upgrade to access the full control mapping, severity breakdown, and remediation plan.

NIS2 Compliance

Network & Information Security Directive

17/100
Score

No information security framework found

HIGH

NIS2 requires documented cybersecurity and information security measures Unlock the full report to read the complete fix.

No vulnerability disclosure policy

MEDIUM

NIS2 encourages coordinated vulnerability disclosure Unlock the full report to read the complete fix.

No security policy documentation found

HIGH

NIS2 requires documented cybersecurity governance and risk management Unlock the full report to read the complete fix.

No incident response procedures found

HIGH

NIS2 requires documented incident response and business continuity plans Unlock the full report to read the complete fix.

No business continuity planning found

MEDIUM

NIS2 emphasizes operational resilience and business continuity Unlock the full report to read the complete fix.

No security contact information

HIGH

NIS2 requires clear incident reporting channels Unlock the full report to read the complete fix.

No vulnerability reporting mechanism

MEDIUM

Clear vulnerability reporting supports coordinated disclosure Unlock the full report to read the complete fix.

No NIS2 reference found

LOW

Consider explicitly mentioning NIS2 compliance efforts Unlock the full report to read the complete fix.

📧Email Security

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

Quick view of email authentication checks is provided. Unlock to uncover full DNS evidence, record diffs, and fix scripts.

Email Security

SPF, DKIM, and DMARC validation

95/100
Score

DMARC Partial Enforcement

LOW

DMARC only applies to 10% of messages Unlock the full report to read the complete fix.

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:mailgun.org -all
DNS Lookups:3/10
Policy:-all
DKIM Selectors Found
Selector:google(1416-bit rsa)
DMARC Details
Policy:quarantine(10% enforcement)
Aggregate Reports:nnkib16m@ag.dmarcian.com
Forensic Reports:dmarc@zulip.com
MTA-STS Details

🏆SSL/TLS Security

Certificate validity and encryption analysis.

This is a teaser of the TLS audit. Unlock to view certificate chains, cipher support tables, and remediation steps.

SSL/TLS Security

Certificate validity and encryption analysis

80/100
Score

Weak SSL Key Length

HIGH

SSL certificate uses 256-bit key, which is considered weak Unlock the full report to read the complete fix.

Partial SSL/TLS Assessment

LOW

Completed 2 of 4 security checks due to time constraints Unlock the full report to read the complete fix.

Certificate Details

Subject:zulip.com
Issuer:Amazon ECDSA 256 M02
Valid Until:4/4/2026 (178 days)
SANs:zulip.com, *.zulip.com

OCSP Status

OCSP Stapling Disabled

📊DNS Health

DNS configuration and security assessment.

Unlock the full DNS posture audit to reveal misconfigurations, zone records, and actionable fixes.

DNS Health

DNS configuration and security assessment

85/100
Score

DNSSEC Not Enabled

MEDIUM

DNSSEC is not configured for this domain Unlock the full report to read the complete fix.

Domain Delete Lock Not Enabled

LOW

Domain can be deleted without additional verification Unlock the full report to read the complete fix.

Domain Registration Details

Domain Age
14 years(mature)
Expiry Risk
medium(53 days)
Protection Level
basicDNSSEC OFF

DNS Records

A Records:44.219.110.141, 107.23.217.93, 44.193.194.177, 18.211.187.118, 54.82.84.182, 34.232.107.232
AAAA Records:2600:1f18:414:db16:ec73:e005:7446:2d1b, 2600:1f18:414:db32:235c:87ec:d6d5:96be, 2600:1f18:414:db64:1b19:3e21:509f:ff80, 2600:1f18:414:db80:6bfd:f29c:ad2b:4819, 2600:1f18:414:db00:d395:1215:f5a9:d0d4, 2600:1f18:414:db48:9ecb:f7b1:e0c5:1413
Name Servers:
ns-1206.awsdns-22.org
ns-1854.awsdns-39.co.uk
ns-427.awsdns-53.com
ns-806.awsdns-36.net
MX Records:
1: aspmx.l.google.com
5: alt1.aspmx.l.google.com
5: alt2.aspmx.l.google.com
10: aspmx2.googlemail.com
10: aspmx3.googlemail.com
SOA:Serial: 2021022301, TTL: 86400s

DNSSEC Status

DNSSEC Not Enabled

DNS Performance

Resolution Time:62ms

SPF Analysis

SPF Record:
v=spf1 include:_spf.google.com include:amazonses.com include:mailgun.org -all

Network Security

Port scanning and network exposure analysis.

See a glimpse of exposed services. Unlock to access full port inventories, CVE lookups, and mitigation priorities.

Network Security

Port scanning and network exposure analysis

100/100
Score

Good Network Security Posture

LOW

No unnecessary services detected on common risky ports Unlock the full report to read the complete fix.

🔧Technical Analysis

Detailed technical findings and analysis from AI assessment.

Unlock to view the complete technical breakdown, stack fingerprinting, and hardening checklist.

Technical Analysis

Comprehensive security assessment findings

Additional Findings

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⭐ Verified Community Reviews

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