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Security report for instant.page

instant.page · Technology · N/a

Medium risk. 10 critical or high findings in Email security, Security headers and 2 other checks.

Security score

57/100

Risk levelMedium

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

instant.page is a technology-focused website offering a lightweight, open source JavaScript library that enables just-in-time preloading of web pages to improve page load speed and user engagement. The service targets website owners and developers aiming to reduce latency and increase conversion rates by approximately 1%. The website is well designed, mobile optimized, and provides clear technical explanations and usage instructions. It is trusted by notable brands and has a strong GitHub presence, indicating a reputable and active community. Technically, the site uses modern web standards including CSS Grid and asynchronous JavaScript loading. It integrates Google Analytics and Google Tag Manager for user tracking and performance measurement. The site is fast and accessible, with good SEO and mobile optimization. However, it lacks visible security headers and formal privacy or cookie policies, which are important for compliance and user trust. From a security perspective, the site demonstrates good practices such as script integrity checks and respectful resource loading, but it does not publish a security policy or incident response contacts. No vulnerabilities or suspicious content were detected. The absence of privacy and cookie policies and contact information reduces the overall privacy compliance score. Overall, instant.page presents a professional, trustworthy, and technically sound offering with room for improvement in privacy compliance and security transparency. Strategic recommendations include publishing privacy and cookie policies, adding security headers, and providing clear contact channels for security incidents.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 100 · High
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

10 findings rated critical or high. Fix these first.

  1. 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.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • 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 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

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

Keep watching instant.page

This scan found 25 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.

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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
75
Security headers
15
Email security
40
DNS health
75
Network security
100
GDPR outside view
35
Average
57

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 instant.page, from OffSeq Breach.

No leaked records found

Breach holds no records for instant.page right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

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

instant.page occupies a niche in the web performance optimization market, offering a free, open source tool that improves page load speed through just-in-time preloading. Its competitive advantage lies in simplicity, small size (~1 kB), and ease of integration. The business model appears to be community-driven open source without direct monetization. The target customers are web developers and site owners focused on improving user experience and conversion rates. The website showcases trust signals such as endorsements from major brands and a popular GitHub repository. There is no indication of parent or subsidiary companies. The partnership ecosystem is limited to open source and community engagement. Growth indicators include GitHub stars and adoption by notable clients.

Security posture

The website demonstrates a moderate security maturity level with good client-side security practices like script integrity verification and asynchronous loading. However, it lacks published security policies, incident response contacts, and security.txt files. No security headers were detected in the HTML content, which could improve protection against common web attacks. The use of Google Analytics and Tag Manager introduces moderate user tracking, but no explicit cookie consent mechanism was found, indicating a compliance gap with GDPR and similar regulations. No vulnerabilities or exposed sensitive data were identified. The site respects data saver modes and uses passive event listeners to maintain performance and security.

Recommendations

  1. Publish a comprehensive privacy policy and cookie policy to improve privacy compliance and user trust.
  2. Implement security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security to enhance protection.
  3. Provide clear contact information and a security incident response policy or security.txt file to facilitate vulnerability reporting.
  4. Add a cookie consent mechanism to comply with GDPR and other privacy regulations.
  5. Regularly audit third-party scripts and tracking tools to minimize privacy risks and improve transparency.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
instant.page
Description
instant.page provides a JavaScript library that enables just-in-time preloading of web pages to make site pages load instantly, improving conversion rates by approximately 1%. The service is free, open source (MIT license), lightweight (~1 kB), and designed to be easy to integrate by adding a script snippet before the closing body tag.
Key services
Just-in-time preloading JavaScript library, Integration support (including WordPress), Open source codebase on GitHub
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, CSS Grid, HTML5, Google Analytics, Google Tag Manager
Performance
fast
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
75/100
Good practices seen
  • Uses integrity attribute on script tags
  • Loads scripts asynchronously
  • Uses passive event listeners and requestIdleCallback
  • Respects data saver mode

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
poor

Advertising

Transparency
basic

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. No privacy, cookie, or terms of service policies found on the site.
  3. No contact emails, phone numbers, or physical addresses found on the site.
  4. The site uses modern web technologies and good performance practices.
  5. The site includes Google Analytics and Google Tag Manager for tracking.
  6. The site is open source and hosted on GitHub with a strong community presence.
  7. No explicit security headers detected in the HTML content.
  8. No forms or data collection fields present on the main page.
  9. The site content is focused on improving web page load speed via preloading.
  10. No signs of suspicious or malicious content detected.
Technical notes

Notes

The website uses modern web technologies including CSS Grid for layout and modular JavaScript with integrity attributes for security. It loads scripts asynchronously to optimize performance and uses Google Analytics and Google Tag Manager for analytics. The site is mobile optimized and accessible with good SEO practices including meta tags and Open Graph data. No CMS or hosting provider information is explicitly detected. Performance is fast with minimal blocking resources. The site lacks some security headers and formal privacy compliance mechanisms, which represent technical debt and modernization opportunities. Overall, the technical implementation is solid with room for improvement in security and privacy features.
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. 57/100 −3Medium34 findingsView report
  2. 60/100 +6Medium25 findingsView report
  3. 54/100Medium25 findingsView report
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