Managed service / PRODUCT DOSSIER

Cloudflare D1

Managed SQLite-compatible SQL with a Workers and HTTP interface.

Cloud DBaaS · Not established · Hosted service; SQLite engine rights do not license the serviceRevision 2026-09-14.1 · unreviewedNeeds recheck · recheck 2026-10-140 attestations · checked 2026-09-14

What we do not know yet · 2 open gaps

  • Which pinned versions, topology and service tier fit the intended workload?
  • What are measured correctness, latency, recovery and total operating cost under that workload?

Applies to: Unpinned upstream documentation accessed 2026-09-14; pin engine, extension and service versions before use. · Database is a managed service separate from Worker application compute; do not assume arbitrary SQLite extensions.

Applicability, 1 recheck triggers & verification plan

Applicability

Unpinned upstream documentation accessed 2026-09-14; pin engine, extension and service versions before use.

Database is a managed service separate from Worker application compute; do not assume arbitrary SQLite extensions.

Excludes: Runtime verification; Workload benchmarks and cost comparisons; Unlisted extensions, service tiers and deployment configurations

Recheck when

  • Upstream version, license, API, service plan or storage topology changes.

Needs recheck · due

Verification plan

  1. Pin the target configuration and define workload fixtures, access and budget.
  2. With authorization, test concurrent writes and recovery against explicit correctness expectations.
  3. For vector workloads, measure filtered recall against an exact-search baseline and record index settings.

Provenance & review

Testedknowhow database research

Commissioned by a Nimbalyst maintainer. Documentation synthesis; no independent review or product execution.

Revision 2026-09-14.1 · unreviewed · checked

0 attestations · Content: Unlicensed prototype; redistribution decision pending

← Databases & storage

Relational · Managed service

Database is a managed service separate from Worker application compute; do not assume arbitrary SQLite extensions.

Catalog components: SQLite ↗

Target sources: Cloudflare D1 overview ↗ Durable Objects storage ↗

Capability claims · 5 / 17 sourced

Standing condition: these are documentation claims at the source capture date, with outcome “claimed”; no runtime execution is recorded. Dossier applicability and limitations apply throughout. Expand a row for its statement, specific scope and contradictions. Numbered citations resolve to the source locator and capture date below. Missing evidence means Unknown, not No. Sources are unpinned unless marked “Pinned”; this marks source stability, not stronger support or runtime verification. Reuse counts refer to claims in the full dossier; repeated citations do not represent independent sources.

Yes Documented within scope Partial Limited form of the feature No Explicit evidence of absence Unknown No evidence recorded. These are support assessments, not quality scores or runtime verification.

Data model

SQL queriesYes
Explore SQL queries →

Exposes SQLite-compatible SQL through D1 APIs.

Operations

ReplicationYes
Explore Replication →

Provides global read replicas.

Scope: Read replication is not multi-writer replication.

Point-in-time recoveryYes
Explore Point-in-time recovery →

Time Travel restores earlier database state.

Scope: Available retention depends on the current service plan.

Architecture

HTTP data APIYes
Explore HTTP data API →

Supports external access through an HTTP API.

Managed database serviceYes
Explore Managed database service →

Cloudflare operates the database service.

Unknown · 12 capabilities without evidence

Interface images & local attachments

Sources · 2

[1]Cloudflare D1 overview ↗4 / 5 claims
vendor-documentation · locator & rights

SQL; Time Travel; read replication

Link and original paraphrase only; upstream rights retained.

[2]Durable Objects storage ↗1 / 5 claims
vendor-documentation · locator & rights

Access storage; SQL in Durable Objects vs D1

Link and original paraphrase only; upstream rights retained.