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Security report for pdf.net

PDF Dot Net LLC · Technology · N/a

Medium risk. 6 critical or high findings in SSL/TLS, Security headers and 1 other check.

Security score

70/100

Risk levelMedium

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

pdf.net is a professional, all-in-one online PDF editor operated by PDF Dot Net LLC, offering a comprehensive suite of PDF editing tools including signing, annotating, merging, splitting, compressing, and converting documents. The platform targets both amateurs and professionals seeking an easy-to-use yet powerful PDF editing solution. It is positioned as a trusted service used by industry leaders, emphasizing cross-platform compatibility and document formatting consistency. Technically, the website is built on modern frameworks such as Next.js and React, hosted behind Cloudflare DNS and CDN services, and integrates multiple analytics and marketing tools including Google Tag Manager, TikTok Analytics, and Bing Ads. The site demonstrates excellent performance, mobile optimization, and SEO practices. Security posture is strong with HTTPS enforcement, security headers, and secure file upload forms, though it lacks a visible cookie consent mechanism and explicit incident response contacts. Overall, the domain is long-established since 1997, with transparent WHOIS data aligning with the business claims, indicating high legitimacy and trustworthiness.

Scanned

NIS2 and GDPR posture

GDPR outside view
58/ 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

6 findings rated critical or high. Fix these first.

  1. 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
    • High

      SSL Certificate Expires Soon

      SSL certificate expires in 28 days

      What to do: Renew SSL certificate before expiration

      • NIS2 21(2)(h)
      • IR 2024/2690 9.2(c): Implementing Regulation (EU) 2024/2690, Annex point 9.2(c): Cryptography
      • NIST SC-17: NIST SP 800-53 Rev. 5 SC-17: Public Key Infrastructure Certificates

  2. 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';…

  3. 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

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

Keep watching pdf.net

This scan found 20 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
59
Security headers
30
Email security
87
DNS health
85
Network security
100
GDPR outside view
58
Average
70

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

pdf.net operates a SaaS business model providing online PDF editing services with free core features and optional registration for advanced capabilities. Its market positioning leverages ease of use, comprehensive functionality, and cross-platform support to attract a broad user base including professionals and amateurs. The company showcases trust signals such as testimonials, industry leader logos, and structured data. The platform integrates with affiliate and review sites like AppSumo, Trustpilot, and G2, enhancing credibility. While direct contact details are limited to a contact form, the website maintains professional content and branding consistency. The absence of cookie consent and incident response details suggests areas for compliance improvement. No suspicious or privacy-protected WHOIS data further supports business credibility.

Security posture

The website exhibits a mature security posture with HTTPS enforced, multiple security headers present, and secure handling of file uploads. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the lack of a published vulnerability disclosure policy or security.txt file and absence of explicit incident response contact channels represent gaps in security transparency. The integration of multiple third-party analytics and marketing scripts increases the attack surface but appears managed appropriately. Overall, the security maturity is high, but improvements in transparency and user privacy controls are recommended to enhance compliance and trust.

Recommendations

  1. Implement a visible cookie consent banner to comply with GDPR and other privacy regulations.
  2. Publish a vulnerability disclosure policy or security.txt file to facilitate responsible security reporting.
  3. Add explicit incident response contact information such as security@ or abuse@ email addresses.
  4. Enhance contact information by providing direct company emails or phone numbers for support and sales.
  5. Regularly review third-party scripts and tracking tools to minimize privacy risks and improve user trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
PDF Dot Net LLC
Description
All-in-one online PDF editor to sign, edit, annotate, merge, split, compress, convert, and protect documents.
Key services
PDF editing, PDF signing, Annotating, Merging, Splitting, Compressing, Converting PDFs to/from various formats, Protecting PDFs with passwords
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Cloudflare DNS, Google Tag Manager, TikTok Analytics, Bing Ads, Applovin, Axon.ai
Frameworks
Next.js, React
Platforms
Web browsers, Windows, macOS, Linux, iOS, Android
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Secure forms with file upload restrictions
  • No exposed sensitive data in HTML
  • Use of security headers

Analytics and tracking

Services
Google Analytics (via GTM), TikTok Analytics, Bing Ads, Axon.ai
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
Bing Ads, Applovin
Tracking pixels
TikTok Analytics, Bing Ads, Axon.ai
Marketing tools
TikTok Analytics, Axon.ai
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 no blocking or WAF challenges.
  2. Comprehensive PDF editing services with a modern, professional UI.
  3. Strong use of structured data and SEO best practices.
  4. Multiple external analytics and marketing tools integrated.
  5. No direct company emails or phone numbers found; contact via form only.
  6. No cookie consent banner detected despite tracking scripts present.
  7. No explicit incident response or vulnerability disclosure information found.
  8. WHOIS data is transparent and consistent with business claims.
Technical notes

Notes

The website is built on a modern React and Next.js framework, ensuring server-side rendering and good SEO performance. Hosting appears to leverage Cloudflare for DNS and CDN, contributing to fast load times and security. The site is mobile-optimized with responsive design and accessibility features. Multiple external analytics and marketing tools are integrated, including Google Tag Manager, TikTok Analytics, Bing Ads, and Applovin, indicating a mature digital marketing strategy. No CMS was detected, suggesting a custom-built platform. The technical implementation is robust with no visible technical debt or performance bottlenecks. Opportunities exist to improve privacy compliance and incident response transparency.
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

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