Skip to main content

Security report for addevent.com

AddEvent · Technology · N/a

Medium risk. 7 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

68/100

Risk levelMedium

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

AddEvent is a technology company specializing in calendar event sharing and marketing tools designed to increase attendance and engagement for businesses and organizations. Their platform offers a variety of services including add to calendar buttons, online RSVP forms, subscription calendars, embeddable calendars, automated events, and analytics. Trusted by over 300,000 companies, AddEvent positions itself as a market leader in the 'add to calendar' service space. The website is professionally designed, mobile-optimized, and provides clear navigation and comprehensive content about their offerings. Technically, the website employs modern web technologies including JavaScript libraries, CSS frameworks, and integrations with third-party services such as Stripe for payments and Amplitude for analytics. The site loads quickly and is optimized for mobile devices, reflecting a mature digital infrastructure. Security best practices are observed with HTTPS enforcement and presence of key security headers, although explicit security policies and incident response information are not publicly detailed. From a security perspective, the site shows a good posture with no visible vulnerabilities or exposed sensitive data. Privacy compliance is well addressed with clear privacy and cookie policies and consent mechanisms. However, the absence of WHOIS data for the domain introduces some uncertainty regarding domain registration legitimacy, which slightly impacts the overall trust score. Overall, AddEvent presents a trustworthy and professional online presence with strong business credibility and technical maturity. Strategic recommendations include publishing explicit security policies, adding vulnerability disclosure mechanisms, and improving transparency around domain registration details to enhance trust further.

Scanned

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

NIS2 and GDPR posture

GDPR outside view
35/ 100 · High
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

7 findings rated critical or high. Fix these first.

  1. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

  2. GDPR outside view

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

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • 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

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

Keep watching addevent.com

This scan found 22 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

Email alerts on material changes and an exportable JSON history of every change.

Billed monthly to your card. Cancel anytime. The full timeline opens with your unlock code.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
72
Security headers
30
Email security
85
DNS health
85
Network security
100
GDPR outside view
35
Average
68

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

AddEvent operates in the technology sector providing SaaS solutions for calendar event sharing and engagement. Their competitive advantage lies in their extensive integrations with major calendar platforms and a large user base exceeding 300,000 companies. The business model focuses on subscription-based services with tiered pricing plans. Target customers include businesses, event organizers, marketers, and organizations seeking to improve event attendance and engagement. The company leverages partnerships with payment processors like Stripe and affiliate marketing via FirstPromoter. Growth indicators include a comprehensive product suite and active content marketing through blogs and documentation. The company maintains a consistent brand identity and demonstrates a strong market position in its niche.

Security posture

The security maturity of AddEvent's website is good, with HTTPS enforced and multiple security headers implemented to protect against common web vulnerabilities. No exposed sensitive information or vulnerable libraries were detected in the analyzed content. Privacy policies and cookie consent mechanisms indicate compliance with GDPR and related regulations. However, the lack of a published security policy, incident response plan, or vulnerability disclosure program limits transparency and preparedness perception. No direct security contact channels were found, which could hinder timely incident reporting. Overall, the security posture is solid but could be improved by adding explicit security governance documentation and communication channels.

Recommendations

  1. Publish a dedicated security policy and incident response plan on the website.
  2. Implement and publicize a vulnerability disclosure program or security.txt file.
  3. Provide a direct security contact email (e.g., security@addevent.com) for reporting issues.
  4. Regularly audit and update third-party scripts and libraries to mitigate vulnerabilities.
  5. Enhance domain registration transparency by ensuring WHOIS data is complete and accurate.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
AddEvent
Description
Easily increase attendance and engagement by letting users add events to their calendars, embed calendars on your website, collect RSVPs, send reminders, and offer calendar subscriptions. Works with Google, Apple, Outlook, and more.
Key services
Add to calendar buttons, Online RSVP forms, Subscription calendars, Embeddable calendars, Automated events, Event landing pages, Analytics
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, CSS, HTML5, Google Fonts, Slick Carousel, AddEvent proprietary JS libraries, Stripe (payment processing), Amplitude (analytics), FirstPromoter (affiliate tracking)
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of secure cookies likely (not directly visible)
  • No vulnerable libraries detected in scripts

Analytics and tracking

Services
Amplitude
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Amplitude, FirstPromoter
Marketing tools
Stripe, Amplitude
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and professional design.
  2. No WAF or blocking mechanisms detected.
  3. WHOIS data is missing, which is unusual and reduces trust slightly.
  4. Strong presence of business and technical trust indicators.
  5. No direct contact emails or phone numbers visible on main page; contact likely via forms.
  6. Good privacy and cookie policy presence with consent mechanisms.
  7. Use of modern web technologies and third-party integrations for analytics and payments.
Technical notes

Notes

The website is built using modern web standards including HTML5, CSS3, and JavaScript. It uses third-party libraries such as Slick Carousel for UI components and integrates with external services like Stripe for payment processing and Amplitude for analytics. The site is optimized for performance and mobile responsiveness, with appropriate meta tags and SEO practices in place. No CMS was explicitly detected, suggesting a custom or proprietary platform. Hosting details are not directly visible but the use of CDN domains indicates a distributed content delivery approach. The technical infrastructure supports a fast, accessible, and user-friendly experience with minimal technical debt observed.
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. 69/100Medium30 findingsView report
  2. 69/100 +3Medium30 findingsView report
  3. 66/100Medium31 findingsView report
Reviews of this site

Share your experience with addevent.com. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review addevent.com.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.