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Security report for yoast.com

Yoast BV · Technology · Netherlands

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

Security score

74/100

Risk levelMedium

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

Yoast BV operates a leading SEO software and education platform, primarily known for its widely used Yoast SEO WordPress plugin and related products for Shopify and other platforms. The company targets website owners, online stores, bloggers, and SEO professionals, offering tools and courses to improve search engine visibility. With a strong market position supported by over 13 million users and a parent company relationship with Newfold Digital, Yoast demonstrates a mature and stable business model focused on SaaS and digital product sales. Technically, the website is built on WordPress with WooCommerce, enhanced by modern technologies like Google Tag Manager, Algolia search, and Wistia video embeds, hosted with Cloudflare DNS services. The site is fast, mobile-optimized, and SEO-friendly, reflecting high digital maturity. Security posture is strong with HTTPS enforced, secure domain registration, and no visible vulnerabilities, though DNSSEC is not enabled and some security headers could be explicitly added. Privacy compliance is well addressed with clear privacy and cookie policies and GDPR adherence. Overall, the website is professional, trustworthy, and well-maintained, with minor recommendations to enhance DNS security and publish explicit security policies.

Scanned

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

NIS2 and GDPR posture

GDPR outside view
73/ 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. 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 X-Frame-Options header

      Prevents clickjacking attacks

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

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

  2. GDPR outside view

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

    • 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

  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 SSL Key Length

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

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching yoast.com

This scan found 19 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. See sample alerts.

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
65
Security headers
40
Email security
80
DNS health
85
Network security
100
GDPR outside view
73
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

Yoast holds a prominent position in the SEO technology sector, leveraging a freemium business model with premium subscriptions and add-ons. Its competitive advantage lies in its comprehensive SEO tools, educational content, and strong community engagement. Revenue streams include plugin sales, Shopify app subscriptions, and online SEO courses. The target market includes small to medium businesses, bloggers, and e-commerce operators seeking to improve their search rankings. Partnerships with Newfold Digital and integration with platforms like Shopify expand its ecosystem. Growth indicators include continuous product updates, webinars, and a large user base. The company maintains a consistent brand and invests in customer support and education, reinforcing its market leadership.

Security posture

The website exhibits a mature security posture with HTTPS enforced and domain registration status clientTransferProhibited, reducing risks of unauthorized transfers. No sensitive data exposure or vulnerable libraries were detected in the HTML content. Security best practices include secure forms with validation and use of reputable third-party services. However, DNSSEC is not enabled, which could improve DNS security. No explicit security policy or incident response information is published, representing a compliance gap. The absence of a vulnerability disclosure policy or security.txt file limits transparency for security researchers. Overall, the site is secure but could enhance its security culture and compliance documentation.

Recommendations

  1. Enable DNSSEC on the domain to strengthen DNS security and prevent spoofing.
  2. Publish a dedicated security policy and incident response plan accessible to users and researchers.
  3. Implement and explicitly report security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  4. Create and maintain a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  5. Continue monitoring third-party libraries and dependencies to avoid introducing vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Yoast BV
Description
Yoast helps you with your website optimization, whether it be through our widely used SEO software or our online SEO courses: we're here to help.
Key services
Yoast SEO WordPress plugin, Yoast SEO for Shopify, SEO online courses, SEO add-ons and extensions
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, WooCommerce, jQuery, Google Tag Manager, Algolia Search, Wistia video embeds, Cloudflare DNS
Frameworks
Yoast SEO Premium plugin
Platforms
WordPress, Shopify
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • ClientTransferProhibited domain status
  • No exposed sensitive data in HTML
  • Secure forms with validation

Analytics and tracking

Services
Google Analytics (via Google Tag Manager)
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google AdSense
Tracking pixels
HelpScout beacon
Marketing tools
Convertexperiments
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed and well-structured.
  2. Comprehensive SEO and educational content available.
  3. Multiple product offerings with clear pricing and purchase options.
  4. Strong social media presence and community engagement.
  5. Secure domain registration and HTTPS usage.
  6. No signs of blocking or WAF interference.
Technical notes

Notes

The website is built on a modern WordPress infrastructure with WooCommerce for e-commerce capabilities. It leverages JavaScript libraries such as jQuery and integrates with Google Tag Manager for analytics and marketing. Algolia powers the search functionality, and Wistia is used for video hosting. The site uses Cloudflare for DNS and likely CDN services, enhancing performance and security. The design is responsive and optimized for mobile devices. Performance is fast with preloading of fonts and images. The site uses structured data (JSON-LD) extensively for SEO and social media optimization. Technical debt appears low, with up-to-date plugins and scripts. Opportunities exist to enhance security headers and DNS security. Overall, the technical implementation supports a robust, scalable, and user-friendly digital presence.
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. 72/100 −2Medium27 findingsView report
  2. 74/100Medium27 findingsView report
  3. 74/100Medium27 findingsView report
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