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Security report for sharethis.com

ShareThis · Technology · United States

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

73/100

Risk levelMedium

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

ShareThis is a technology company specializing in digital behavioral data solutions aimed at media planning, targeting, and measurement. The company offers website tools designed to help grow online audiences, targeting media companies, marketers, and advertisers. Established in 1999, ShareThis holds a solid market position as an established player in digital data and audience engagement technology. The website reflects a professional and consistent brand image with good content quality and clear business focus. Technically, the website is built on WordPress and leverages modern marketing and analytics technologies including Google Tag Manager, Mixpanel, LinkedIn Insight Tag, and Osano Consent Management Platform. Hosting and domain registration are managed via Amazon AWS infrastructure, ensuring reliable performance and security. The site is mobile optimized and SEO friendly, although accessibility features are basic. From a security perspective, the site enforces HTTPS and uses domain status locks to prevent unauthorized changes. However, DNSSEC is not enabled and some common security headers are not explicitly detected, indicating room for improvement. No critical vulnerabilities or exposed sensitive data were found. Privacy compliance is well addressed with comprehensive privacy and cookie policies and a consent mechanism in place. Overall, ShareThis demonstrates a mature digital presence with strong business credibility and a good security posture. Strategic improvements in security headers, DNSSEC implementation, and publishing explicit security policies would further enhance trust and compliance.

Scanned

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

NIS2 and GDPR posture

GDPR outside view
70/ 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

5 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"

  2. 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

  3. 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.

  4. 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 sharethis.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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Full report

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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
72
Security headers
55
Email security
60
DNS health
80
Network security
100
GDPR outside view
70
Average
73

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention sharethis.com, from OffSeq Breach.

Total records
89,016
Employees
22
Customers
88,925
Third parties
69
Weak passwords
43%

Latest record dated 2026-05-26 · 30 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for sharethis.com.

Select it in the checkout above.

Masked preview

  • –sharethis.com2026-05-26
  • –sharethis.com2026-05-26
  • –sharethis.com2026-05-26
  • –sharethis.com2026-04-13
  • –sharethis.com2026-02-26

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Open in Breach(opens in a new tab)Monitor on Breach(opens in a new tab)

Technical appendix

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

Business context

Business profile

ShareThis operates in the technology and media sectors, providing B2B digital data solutions that enable media planning, targeting, and measurement. Their business model focuses on delivering behavioral data and audience engagement tools to marketers and media companies. The company benefits from a long-established domain and consistent branding, indicating stable market presence. Their use of multiple analytics and marketing tools suggests a data-driven approach to growth and customer engagement. The multilingual support via Weglot indicates a global target audience. No parent or subsidiary companies were identified, suggesting an independent operation. The company leverages partnerships with platforms like LinkedIn for retargeting and audience insights.

Security posture

The website exhibits a good security posture with HTTPS enforced and domain registration protections in place. The use of a reputable registrar and AWS hosting adds to the trustworthiness. The presence of a consent management platform (Osano) indicates attention to privacy compliance. However, the absence of DNSSEC and some security headers such as Content-Security-Policy and X-Frame-Options represents potential security gaps. No incident response or security policy pages were found, which could limit transparency in case of security events. No vulnerabilities or exposed sensitive data were detected in the analyzed content. Overall, the security maturity is solid but could be improved with additional security controls and published policies.

Recommendations

  1. Enable DNSSEC to enhance domain name system security and prevent DNS spoofing.
  2. Implement and verify security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to mitigate common web attacks.
  3. Publish a dedicated security policy and incident response contact information to improve transparency and readiness.
  4. Consider adding a vulnerability disclosure policy or security.txt file to facilitate responsible reporting of security issues.
  5. Regularly audit third-party scripts and libraries to ensure no vulnerable components are included.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
ShareThis
Description
Digital data solutions for media planning, targeting, and measurement. Website tools to grow online audiences.
Key services
Digital behavioral data solutions, Media planning, Targeting, Measurement, Website sharing tools
Content quality
good
Branding
consistent

Technology

Stack
WordPress CMS, Google Tag Manager, Mixpanel analytics, LinkedIn Insight Tag, Osano Consent Management Platform, Weglot translation service, ShareThis sharing tools
Frameworks
WordPress
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Domain status includes clientDeleteProhibited, clientTransferProhibited, clientUpdateProhibited
  • Use of reputable registrar
  • Consent management platform implemented

Analytics and tracking

Services
Mixpanel, Google Analytics (via GTM inferred), LinkedIn Insight Tag
Tracking level
extensive
Privacy practices
good

Advertising

Tracking pixels
Mixpanel, LinkedIn Insight Tag, ZoomInfo pixel
Marketing tools
Mixpanel, LinkedIn Insight Tag, Osano CMP
Transparency
good

Site quality

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

Key observations

  1. Website uses modern consent management and analytics tools.
  2. Content is business-oriented and professionally presented.
  3. No signs of phishing, malware, or suspicious activity detected.
  4. No direct company phone numbers or physical addresses found in the provided content.
  5. Multiple language support via Weglot translation service.
  6. No explicit security or incident response policies published on main site.
Technical notes

Notes

The website is built on WordPress CMS, utilizing a modern tech stack including Google Tag Manager, Mixpanel, LinkedIn Insight Tag, and Osano CMP for analytics and privacy compliance. Hosting is provided via Amazon AWS infrastructure, inferred from registrar and DNS servers. The site is mobile optimized and uses Weglot for multilingual support, indicating a global reach. Performance is moderate with good SEO and accessibility basics. The site uses structured data (JSON-LD) for enhanced search engine understanding. Some technical debt is noted in missing security headers and lack of DNSSEC. Overall, the technical infrastructure is robust but can benefit from security hardening and performance tuning.
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. 73/100Medium29 findingsView report
  2. 73/100 +2Medium29 findingsView report
  3. 71/100Medium30 findingsView report
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