# Document Check ### About service A Document Check is an advanced **ID document verification** service designed for **KYC onboarding** and **digital identity** **verification**. It allows businesses to verify passports, driving licences, and national identity cards while **detecting document fraud** and **extracting structured identity data** for compliance and downstream processing. ComplyCube supports verification of over [13,000 document types](https://docs.complycube.com/documentation/product-guides/identity-verification/document-check/document-types-per-country) across **250+ countries and territories**, enabling global identity coverage. Supported documents include: * Passports * Driving licenses * National identity cards * Residence permits * Tax identification documents * Other region-specific IDs, including voter, refugee, and health cards {% hint style="info" %} While this check can be run entirely through our API, we **highly** **recommend** using the [Hosted Solution](https://app.gitbook.com/s/lv7UhJvTbxeq4s3KwQpn/web-integrations/hosted-solution-quick-guide), [Web SDK](https://app.gitbook.com/s/lv7UhJvTbxeq4s3KwQpn/web-integrations/web-sdk-quick-guide), or [Mobile SDKs](https://app.gitbook.com/s/sw26JqCBnT6AEIbxAYyk/quick-guides/mobile-sdk-guide). These SDKs guide your customers through the capture process, reducing friction, improving completion rates, and minimizing false positive outcomes. {% endhint %} {% hint style="info" %} [Learn about the Document Checks API.](https://app.gitbook.com/s/kAhgmUKSf8CFUFVL3GEe/check-types/document-check) {% endhint %} ### Common use cases Document Checks enable businesses to verify identities securely, reduce onboarding fraud, and meet global AML and compliance requirements at scale. They're typically used for: * **Digital KYC onboarding**: Authenticate passports and government-issued IDs during remote customer acquisition. * **Cross-border identity verification**: Validate identity documents across multiple countries and jurisdictions with broad global coverage. * **Age verification and access control**: Verify date of birth from government-issued IDs to confirm age eligibility for restricted services and regulated products. * **Fraud prevention**: Detect fake, tampered, or manipulated ID documents during customer registration. * **Regulated industry compliance**: Extract structured ID data and generate audit-ready verification records for regulated industries such as fintech, telcos, crypto, and marketplaces. ### How document check works It combines advanced document authentication, fraud detection, and structured data extraction: * **Document authenticity verification:** Performs forensic analysis of built-in security features such as holograms, print patterns, layout consistency, and embedded protections to confirm the document is genuine. * **Fraud detection**: Detects tampering, manipulation, camera injections, photocopies, and screen replays. * **Lost and stolen document screening**: Screens documents against global blacklists and lost/stolen databases. * **OCR and MRZ extraction**: Extracts available **data**, **signatures**, and **images** from a document’s Visual Inspection Zone (VIZ) using OCR, and parses Machine Readable Zone (MRZ) data in ICAO-compliant format with checksum validation to ensure integrity and accuracy. * **Barcode and RFID/NFC chip authentication**: Extracts data from 1D and 2D barcodes (where present) and [verifies the integrity of embedded RFID/NFC chips](https://docs.complycube.com/documentation/product-guides/identity-verification/document-check/rfid-authentication) on compatible ePassports and identity cards to confirm authenticity. * **Privacy-first redaction**: Automatically [redacts sensitive data](https://docs.complycube.com/documentation/product-guides/identity-verification/document-check/redaction) fields in images and extracted data to support data minimisation and compliance requirements. {% hint style="info" %} [RFID chip](https://docs.complycube.com/documentation/product-guides/identity-verification/document-check/rfid-authentication) data extraction and analysis are available exclusively through our [Mobile SDKs](https://app.gitbook.com/s/sw26JqCBnT6AEIbxAYyk/quick-guides/mobile-sdk-guide). {% endhint %} ### Analysis performed The Document Check runs multiple layers of analysis to validate the authenticity, integrity, and consistency of identity documents. Each analysis type focuses on a specific set of verifications. The diagram below outlines the key analysis categories. *** ![Document Check Overview](https://1615271746-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FKyFKMqftsmT6qln9zo5y%2Fuploads%2FMIadm26kLxm5aq23mddT%2Fdocument_check_service_v2.png?alt=media\&token=bcd78445-c8af-4f16-ab30-9f96d1f3de68) *** **Detailed verification checks**
AnalysisVerifications Performed
Forensic Analysis
  • Security elements check: Confirms embedded features (e.g., holograms, UV marks) are genuine.
  • Tamper or manipulation detection: Identifies alterations or forgeries.
  • Document liveness analysis: Ensures the document is physically present, not a static copy.
  • Photo location analysis: Detects mismatched or swapped photos.
  • MRZ classification and placement: Checks MRZ data is structured correctly and in the right place.
Format Analysis
  • Country and document model validation: Confirms the ID matches official country formats.
  • Photocopy detection: Flags photocopied or re-printed documents.
Content Analysis
  • Expiry and issuance: Validates ID is current and correctly issued.
  • Data integrity: Ensures consistency across fields.
  • Specimen analysis: Compares against genuine sample IDs.
  • Blacklist check: Detects IDs reported lost, stolen, or compromised.
MRZ Analysis
  • Checksum validation: Confirms MRZ codes are valid.
  • Format validation: Ensures compliance with ICAO standards.
RFID Analysis
  • Basic and chip authentication: Confirms RFID chip is original and untampered.
  • Passive and active authentication: Validates chip data integrity.
  • PACE (Password Authenticated Connection Establishment): Ensures the RFID chip is genuine and has not been tampered with.
  • Facial similarity check: Compares the chip-stored biometric photo with the document’s visible portrait.
Front & Back Analysis
  • Format and consistency: Ensures details match across both sides of the document.
Consistency Analysis
  • Cross-validation: Compares OCR data from VIZ, MRZ, barcodes, and RFID for alignment.
Client Validation
  • Age verification: Confirms whether the customer is older than the defined threshold.
  • Client data consistency: Ensures submitted customer info matches extracted document data.
### Check duration A Document Check takes an average of **8 seconds** to complete. ### Related checks You’ll typically run a Document Check alongside: * [Identity Check](https://docs.complycube.com/documentation/product-guides/biometric-and-liveness-verification/identity-check) for liveness and selfie verification. * [Multi-Bureau Check](https://docs.complycube.com/documentation/product-guides/identity-verification/multi-bureau-check) for identity and address verification via authoritative sources. * [Proof of Address Check](https://docs.complycube.com/documentation/product-guides/kyc-automation-services/proof-of-address-check) to validate address documents when required. * [AML Screening Check](https://docs.complycube.com/documentation/product-guides/watchlist-pep-and-adverse-media/aml-screening-check) for sanctions, PEP, and adverse media screening. ### Related topics Use these when running or configuring Document Checks: * [RFID authentication](https://docs.complycube.com/documentation/product-guides/identity-verification/document-check/rfid-authentication) for chip-based document integrity checks (mobile). * [Autofill](https://docs.complycube.com/documentation/product-guides/kyc-automation-services/autofill) for structured data extraction from identity documents. * [Workflows](https://docs.complycube.com/documentation/product-guides/compliance-studio/workflows) to bundle Document Check into an end-to-end KYC journey. * [Policies](https://docs.complycube.com/documentation/product-guides/compliance-studio/policies) to apply rule-based pass/fail logic and regulatory requirements.