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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 that support media planning, targeting, and measurement. Their services include website tools designed to help grow online audiences, targeting digital marketers and media planners globally. The company has an established market presence with a domain registered since 1999, indicating longevity and stability. Technically, the website is built on WordPress, hosted on AWS infrastructure, and employs modern marketing and analytics tools such as Google Tag Manager, Mixpanel, and LinkedIn Insight. The site is multilingual, leveraging Weglot for translations, and uses Osano for consent management, reflecting a commitment to privacy compliance. Security-wise, the website enforces HTTPS, uses appropriate security headers, and integrates a consent management platform, though it lacks a publicly disclosed security policy or incident response contacts. Overall, the site is professional, secure, and compliant with privacy regulations, with room for improvement in transparency around security policies and vulnerability disclosures.

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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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 sector, providing data-driven solutions for digital marketing and audience engagement. Their business model revolves around offering free and paid tools that enable website owners and marketers to collect and utilize behavioral data for targeted advertising and media planning. The company targets digital marketers, media planners, and website owners seeking to optimize audience growth and engagement. ShareThis maintains a consistent brand image and leverages partnerships with major platforms like LinkedIn. The presence of multiple language versions indicates a global market approach. The company appears medium-sized with a mature digital infrastructure and a focus on data privacy compliance, positioning it competitively in the digital marketing technology space.

Security posture

The website demonstrates a solid security posture with HTTPS enforced and multiple security headers implemented, reducing common web vulnerabilities. The use of a consent management platform (Osano) indicates attention to privacy regulations such as GDPR. However, the absence of a published security policy, incident response information, or vulnerability disclosure program limits transparency and may impact trust among security-conscious users. No critical vulnerabilities or exposed sensitive data were detected in the analysis. The domain's DNS is hosted on AWS but lacks DNSSEC, which could be enabled to enhance DNS security. Overall, the security maturity is good but could be improved by publishing formal security policies and incident response contacts.

Recommendations

  1. Enable DNSSEC on the domain to strengthen DNS security and prevent spoofing.
  2. Publish a comprehensive security policy and incident response contact information on the website.
  3. Implement a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  4. Add data protection officer contact details to enhance GDPR transparency and compliance.
  5. Regularly audit and update third-party scripts and libraries to mitigate potential vulnerabilities.
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, Google Tag Manager, Mixpanel, LinkedIn Insight Tag, Weglot (translation), Osano CMP (consent management), Convertexperiments, Cloudfront CDN
Frameworks
WordPress
Platforms
AWS (Amazon Registrar, AWS DNS)
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Use of security headers
  • Consent management platform implemented

Analytics and tracking

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

Advertising

Tracking pixels
Mixpanel, LinkedIn Insight, ZoomInfo Pixel
Marketing tools
Convertexperiments
Transparency
basic

Site quality

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

Key observations

  1. Website uses HTTPS with good security headers
  2. Consent management platform (Osano) implemented for GDPR compliance
  3. Multiple language support via Weglot
  4. Use of multiple third-party analytics and marketing tools
  5. No exposed sensitive data or obvious vulnerabilities detected
  6. No explicit security policy or incident response info found
  7. WHOIS data shows no privacy protection and long domain age
  8. No suspicious or malicious domains linked
Technical notes

Notes

The website is built on WordPress CMS, hosted on Amazon Web Services, and uses a modern technology stack including Google Tag Manager, Mixpanel analytics, LinkedIn Insight, and Osano for consent management. The site supports multiple languages via Weglot, indicating a global user base. Performance is moderate with good mobile optimization and basic accessibility features. SEO is well addressed with proper meta tags and structured data (JSON-LD) for enhanced search engine understanding. The site uses a CDN (Cloudfront) to improve content delivery. Technical risks include the absence of DNSSEC and the reliance on multiple third-party scripts which require ongoing security monitoring. Overall, the technical infrastructure is robust and supports the business needs effectively.
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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