From detection to courtroom in 4 steps
Monitor & Detect
Visual Monitor detects a change on the target page — price drop, content edit, or design modification.
Heatmap Generated
A heatmap diff is created — changed pixels glow red, unchanged areas fade. The change is unmistakable.
RFC 3161 Sealed
SHA-256 hash of all evidence is computed and timestamped by DigiCert TSA — RFC 3161 compliant.
PDF Certificate
A 3-page PDF is generated with QR code, heatmap, before/after screenshots, and full technical details.
Who uses Immutable Witness?
Any situation where you need to prove "this page looked like this, at this exact time."
Legal Proceedings
Prove a competitor used your trademark, copied your content, or made false claims — with a court-ready certificate.
Price Manipulation
A competitor drops prices during your campaign then raises them back. Capture the evidence before it disappears.
Brand Protection
Someone is using your logo, slogan, or design. Timestamp the evidence before they remove it.
Compliance Audits
Prove your website met regulatory requirements at a specific point in time. GDPR, cookie banners, disclaimers.
SLA Disputes
Your agency changed your website without permission. Prove the before state with a timestamped certificate.
Competitive Intelligence
Document competitor pricing, feature changes, and messaging over time with verifiable evidence.
A 3-page certificate that speaks for itself
- Certificate ID & QR code (top right)
- SHA-256 cryptographic hash
- RFC 3161 TSA timestamp (DigiCert)
- Server IP address
- HTTP response headers table
- Full-width heatmap (blue→yellow→red)
- Before & After screenshots side by side
- Each image's individual hash
- Full canonical JSON (hash input)
- openssl ts -verify command
- TSA response details
- Independent verification guide
Simple, credit-based pricing
No subscription required. Pay per certificate.
Request a certificate for any URL or diff result via API or dashboard.
- SHA-256 + RFC 3161 TSA
- 3-page PDF certificate
- QR code verification
- Heatmap diff included
- Permanent storage
Triggered automatically when Visual Monitor detects a change.
- Everything in Manual
- Auto-triggered on change
- Instant email delivery
- Visual Monitor integration
- No manual action needed
Comprehensive Web Evidence Capture
A web evidence certificate provides indisputable digital evidence by capturing a website's state with precision and security. At its core, it uses a SHA-256 hash, enhancing integrity by ensuring any alteration is detectable. When generating these certificates, a timestamp from a trusted Time Stamping Authority (TSA) authenticates the exact moment of capture, a crucial feature for legal scrutiny. Each certificate archives a full-page screenshot, HTML source, and HTTP headers, forming a tamper-proof capture.
The entire process takes under five seconds on average for most web pages. File sizes vary, typically averaging around 500KB, depending on the complexity of the site. Supported formats include PDF and JSON, ensuring compatibility with various legal and audit processes. Notably, each web evidence certificate comes with a unique URL for straightforward verification.
Key Features Explained
Specifically, the legal screenshot component ensures that every visual element is preserved accurately. This includes images, text styles, and layout elements. The HTML source capture preserves the underlying code, essential for identifying structural modifications. HTTP headers provide metadata about the server response, useful in compliance audits.
The system's response time is optimized for efficiency, delivering results in milliseconds. File limits are set at 5MB per capture, allowing for detailed records without excessive data handling. When used in court proceedings or IP disputes, the certified screenshot holds significant weight, backed by cryptographic proof and timestamp verification.
Applications in Practice
- Legal proceedings: Provide concrete website proof during lawsuits.
- IP disputes: Document infringing content accurately.
- Compliance audits: Verify adherence to web standards.
- Regulatory filings: Ensure digital evidence meets jurisdictional requirements.
- Journalistic research: Preserve content integrity for reporting.
Under the hood, the system ensures each digital evidence capture is immutable. In practice, this means any attempt to tamper with the data results in a mismatch with the original SHA-256 hash, invalidating the attempt. This feature is critical in environments where data authenticity is paramount.
Verification and Utility
How do users verify the data? Each web evidence certificate includes a unique URL. This URL allows instant validation of the document against the original capture, a critical step in maintaining trust. It supports numerous legal scenarios requiring unquestionable evidence.
Moreover, the service supports API integration, enabling seamless incorporation into existing systems. This facilitates automation in companies that require regular, certified screenshots for compliance checks. The ability to generate tamper-proof captures on demand ensures readiness for any audit or dispute scenario.
Harness the power of a web evidence certificate today for all your digital proof needs.
Frequently Asked Questions
What are web evidence certificates and how do they work?
Web evidence certificates are digital documents that verify the integrity and authenticity of online content at a specific time. They include cryptographic timestamps and are generated through a secure API, ensuring that the evidence is tamper-proof and can be presented in legal settings.
Can I obtain legal screenshots for court use?
Yes, our service provides legal screenshots that capture the exact state of a webpage, including URL and timestamp, in PNG or PDF formats. These screenshots are designed to meet court-admissible standards, ensuring they can be used as reliable evidence.
What is a cryptographic timestamp and why is it important?
A cryptographic timestamp is a secure method to record the time an event occurred, ensuring that the data has not been altered since that time. This timestamp provides verifiable proof for legal investigations, reinforcing the authenticity of the captured content.
Are the proofs generated from your API court-admissible?
Yes, the proofs generated, including web evidence certificates and legal screenshots, comply with legal standards for admissibility. They are formatted and timestamped to ensure they withstand scrutiny in court, providing a reliable record of online evidence.