Scoring methodology
TimestampCompare uses a transparent, evidence-based scoring model to evaluate timestamping providers. Our goal is to help buyers make informed decisions without vendor bias.
Scoring model
Each provider is scored from 0 to 10 across six weighted dimensions: regulatory qualification (eIDAS, national frameworks), RFC 3161 compliance depth, technical capabilities (API, bulk, HSM), hash algorithm support, archive timestamping and long-term validation, and geographic coverage.
Evaluation criteria
We assess publicly available documentation, API specifications, trust lists published by EU member states, independent audits, and direct vendor confirmations. Scores are cross-validated against multiple data sources.
Update cadence
Benchmark data is refreshed quarterly. Providers are re-scored whenever material changes to their services, certifications, or trust list status are confirmed.
Transparency commitment
TimestampCompare does not accept paid placements or sponsored rankings. All scores are derived from publicly verifiable criteria. Our methodology is documented here for full accountability.
Authoritative standards & references
All scoring criteria are derived from the following primary regulatory and technical sources. This benchmark does not rely on vendor self-declaration alone.
- → EU eIDAS Trusted List Browser (European Commission) — official source of all Qualified Trust Service Providers (QTSPs) authorised to issue eIDAS-qualified electronic timestamps.
- → IETF RFC 3161 — Internet X.509 PKI Time-Stamp Protocol (TSP) — defines the standard for issuing, verifying, and exchanging timestamp tokens.
- → ETSI EN 319 421 — Policy and Security Requirements for TSPs issuing Time-Stamps — the European technical standard governing TSA policy and security requirements.
- → EU Regulation 910/2014 (eIDAS) — the legal framework establishing qualified electronic timestamps and their legal effect across EU member states.
Non-public data? Download the buyer template
Providers rarely publish pricing, performance SLAs, or capacity figures. Use our free due-diligence grid to ask them directly during your evaluation.
Provider Scoring Matrix
Compare timestamping providers across 20 criteria in 5 key categories
See full scoring matrix