Skip to main content

Security report for tinypng.com

Tinify · Technology · N/a

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

Security score

75/100

Risk levelMedium

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

Tinify operates the TinyPNG website, a well-established online image compression and optimization service founded in 2011. The company offers a suite of products including an online compressor, image CDN, API integration, and a WordPress plugin, targeting website owners, developers, and designers seeking to improve website performance through efficient image handling. The website demonstrates a strong market position with endorsements from major global companies and a consistent, professional brand presence. Technically, the website is built on modern frameworks such as Next.js and React, hosted on Google infrastructure, and employs best practices for performance and mobile optimization. The site includes cookie consent management via Cookiebot and uses Google Tag Manager for analytics, reflecting a mature digital infrastructure. However, explicit privacy and terms of service pages were not found in the provided content, indicating an area for improvement in compliance transparency. From a security perspective, the site enforces HTTPS and employs domain transfer protection, but DNSSEC is not enabled, and explicit security headers were not detected in the provided data. No vulnerabilities or exposed sensitive data were observed. The WHOIS data confirms domain legitimacy and consistency with the business history. Overall, TinyPNG presents a secure, professional, and technically sound service with minor gaps in privacy documentation. Strategic recommendations include enabling DNSSEC, publishing comprehensive privacy and terms of service documents, and enhancing security headers to further strengthen trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
65/ 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 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 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

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, Twitter, LinkedIn

      What to do: Document all third-party data sharing in your privacy policy

  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 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 tinypng.com

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
72
Security headers
45
Email security
80
DNS health
85
Network security
100
GDPR outside view
65
Average
75

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

Tinify's TinyPNG service occupies a strong niche in the image optimization market, offering both free and paid plans tailored to different user needs. Its business model combines SaaS offerings with API access and plugin integrations, enabling diverse revenue streams. The company targets web professionals and enterprises focused on improving site speed and SEO through optimized images. Partnerships and endorsements from notable companies enhance its credibility and market reach. The presence of multiple product lines (Web Pro, CDN, API, WordPress plugin) indicates a diversified product ecosystem supporting growth and customer retention.

Security posture

The website demonstrates a good security posture with HTTPS enforced and domain transfer protection in place. Cookie consent is managed via Cookiebot, indicating attention to privacy compliance. However, the absence of DNSSEC and explicit security headers such as Content Security Policy or HSTS suggests room for improvement. No incident response or security policy information is publicly available, which could impact transparency. No vulnerabilities or sensitive data exposures were detected in the analyzed content. Overall, the security maturity is solid but could benefit from enhanced DNS security and published security policies.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS security and prevent spoofing.
  2. Publish a comprehensive privacy policy and terms of service accessible from the homepage.
  3. Implement and publish a security.txt file or vulnerability disclosure policy to facilitate responsible reporting.
  4. Add explicit security headers (CSP, HSTS, X-Frame-Options) to strengthen browser security.
  5. Provide clear contact information including security and incident response contacts to improve transparency.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Tinify
Description
Free online image optimizer for faster websites! Reduce the file size of your AVIF, WEBP, JPEG and PNG images while preserving the image quality.
Key services
Image compression for AVIF, WebP, PNG, JPEG, Image CDN, API integration, WordPress plugin
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Google Tag Manager, Cookiebot, Swiper.js
Frameworks
Next.js
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • ClientTransferProhibited domain status
  • Cookie consent management with Cookiebot
  • No exposed sensitive data in HTML

Analytics and tracking

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

Advertising

Marketing tools
Cookiebot
Transparency
good

Site quality

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

Key observations

  1. Website provides a professional image compression service with multiple product offerings.
  2. Strong branding and customer trust signals present.
  3. Good technical implementation with modern frameworks and performance optimizations.
  4. Privacy and cookie consent mechanisms implemented but privacy policy and terms of service pages not found in provided content.
  5. No direct contact emails or phone numbers found; contact form available via login tooltip.
  6. No explicit security policy or incident response information published.
  7. WHOIS data supports legitimacy and domain age is consistent with business claims.
Technical notes

Notes

The website is built using Next.js and React, leveraging server-side rendering and modern JavaScript frameworks for performance and SEO benefits. Hosting is managed via Google Cloud DNS and Google Domains, indicating reliable infrastructure. The site uses Google Tag Manager and Cookiebot for analytics and consent management, respectively. Performance optimizations and mobile responsiveness are well implemented. No CMS detected, indicating a custom or framework-based solution. The technical stack is modern and well maintained, with opportunities to enhance security headers and DNS configurations.
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

Reviews of this site

Share your experience with tinypng.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 tinypng.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.