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Security report for slackcertified.com

Slack Certified Training · Technology · N/a

Medium risk. 4 critical or high findings in GDPR outside view, Email security and 1 other check.

Security score

74/100

Risk levelMedium

0–100, higher is better. How it is calculated

Slack Certified is an online education platform offering official Slack certification training and badges, powered by Skilljar and associated with Salesforce. The website provides interactive courses and exams to help users build and prove their Slack skills. The platform targets Slack professionals and users seeking to advance their careers through certification. Technically, the site uses modern JavaScript frameworks such as Vue.js, integrates Google Analytics and Tag Manager for tracking, and is hosted on Skilljar's infrastructure. The site is mobile optimized and presents a professional design with clear navigation. Security posture is moderate with HTTPS usage and IP anonymization in analytics, but lacks explicit security headers and cookie consent mechanisms. WHOIS data is unavailable, indicating possible recent domain registration or privacy protection, which slightly impacts trust. Overall, the site is credible and serves a niche educational market with a good user experience.

Scanned

This is an earlier scan of slackcertified.com. View the latest report

NIS2 and GDPR posture

GDPR outside view
53/ 100 · Medium
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

4 findings rated critical or high. Fix these first.

  1. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  2. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • High

      No SPF record found

      SPF helps prevent email spoofing

      What to do: Add SPF record: "v=spf1 include:_spf.yourmailprovider.com ~all"

  3. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

Need hands-on remediation? Email guard@offseq.com

Keep watching slackcertified.com

This scan found 21 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

Daily monitoring

Recommended

€25per month

  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
67
Security headers
75
Email security
65
DNS health
85
Network security
100
GDPR outside view
53
Average
74

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Slack Certified operates in the technology and education sectors, focusing on professional certification for Slack users. Its business model is based on online course delivery and certification exams, leveraging Skilljar's platform. The partnership with Salesforce enhances market credibility and positions the platform as an official certification provider. The target audience includes Slack administrators, consultants, developers, and general users seeking to validate their skills. The platform offers multiple certification paths and badges, supporting career growth. The presence of a Slack directory and community chapters indicates a broader ecosystem engagement. Revenue likely derives from course fees and certification exams. The site demonstrates consistent branding and professional content, supporting a medium-sized operation with growth potential.

Security posture

The website employs HTTPS and anonymizes IP addresses in Google Analytics, reflecting basic security hygiene. However, no explicit security headers such as Content Security Policy, HSTS, or X-Frame-Options were detected in the provided data. There is no visible security policy or incident response contact information, and no vulnerability disclosure or security.txt file is present. The absence of a cookie consent mechanism may pose GDPR compliance risks. No exposed sensitive data or vulnerable libraries were identified. Overall, the security posture is moderate but could be improved by implementing recommended headers, publishing security policies, and enhancing privacy compliance.

Recommendations

  1. Implement and verify security headers including CSP, HSTS, and X-Frame-Options to enhance protection against common web attacks.
  2. Add a cookie consent banner and mechanism to comply with GDPR and other privacy regulations.
  3. Publish a clear security policy and incident response contact information to improve transparency and trust.
  4. Conduct regular security audits and vulnerability scans to identify and remediate potential risks.
  5. Monitor WHOIS registration status and ensure domain registration information is accurate and up to date to improve legitimacy.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Slack Certified Training
Description
Build your Slack career skills and prove your knowledge with interactive courses and exams
Key services
Slack Skills Badge courses, Slack Certified Admin certification, Slack Certified Consultant certification, Slack Certified Developer certification
Content quality
good
Branding
consistent

Technology

Stack
Vue.js 3.4.15, Skilljar platform, Google Analytics, Google Tag Manager, jQuery, Prism.js, Sanitize-html
Frameworks
Vue.js
Platforms
Skilljar
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • Use of HTTPS (implied by URLs)
  • Anonymize IP in Google Analytics

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Transparency
basic

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
high

Key observations

  1. Website is an official Slack certification training platform powered by Skilljar.
  2. No WHOIS data available, indicating possible recent domain registration or privacy protection.
  3. No direct contact emails or phone numbers found on main pages.
  4. Privacy and terms of service pages are present and comprehensive.
  5. No cookie consent banner detected, which may be a GDPR compliance gap.
  6. Use of modern JavaScript frameworks and analytics tools.
  7. No security.txt or vulnerability disclosure policy found.
  8. No explicit security headers detected in provided data.
  9. No adult or questionable content detected.
Technical notes

Notes

The website is built on a modern tech stack featuring Vue.js and Skilljar's learning platform. It integrates Google Analytics and Tag Manager for user tracking and marketing analytics. The site uses external fonts from Google Fonts and hosts images and assets on Skilljar's CDN. Performance is moderate with asynchronous loading of scripts and use of modern JavaScript modules. Mobile optimization is good, with responsive design and font scaling. Accessibility features are basic but present. SEO is supported by proper meta tags and Open Graph data. There is no detected CMS beyond Skilljar's platform. Hosting provider details are not explicit but likely Skilljar or Salesforce infrastructure. Technical risks include lack of explicit security headers and cookie consent mechanisms, which should be addressed to improve compliance and security posture.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

Earlier scans of this domain

  1. 79/100Low22 findingsView report
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