Contabo Object Storage vs IONOS

Compare Contabo Object Storage y IONOS en capacidades, jurisdicción, garantías y encaje para compradores europeos.

Ambos figuran como alternativas a: DigitalOcean

Logo: Contabo Object Storage

Contabo Object Storage

Germany· Cloud Computing

Needs review

Shortlist when you want a Ceph S3 bucket next to Contabo VPS or VDS, can use path-style endpoints, and can live without S3 logging. Skip when you need Amazon-complete S3, a first-party custom TLS hostname, company-wide ISO 27001 or SOC 2, or a store with no US parent and no US region. Consider Hetzner Object Storage or OVHcloud Object Storage instead.

S3-compatible (partial)Ceph backendEU region availableGerman GmbHIn-panel DPA
Contabo Object Storage vs IONOS: Resumen
CaracterísticaLogo: Contabo Object StorageContabo Object StorageLogo: IONOSIONOS
País de origenGermanyGermany
CategoríaCloud ComputingCloud Computing
Código abiertoNoNo
AutoalojadoNoNo
SedeGermanyNo indicado
Entidad legalContabo GmbH (Welfenstrasse 22, 81541 Munich; AG Munich HRB 180722; VAT DE267602842)No indicado
Matriz / control EE.UU.Matriz o control estadounidenseNo indicado
Exposición CLOUD Act (indicativa)AltoNo indicado
Alojamiento / residenciaObject storage sold in the EU (eu2.contabostorage.com), United States (usc1.contabostorage.com), and Singapore (sin1.contabostorage.com). Contabo operates its own data centers. No public object-storage subprocessor list. Management API auth is at auth.contabo.com. Official custom-domain docs use Cloudflare as an optional customer-side proxy, not as the S3 data plane.No indicado
Resumen

S3-compatible object storage from Munich-based Contabo GmbH, running on Ceph with EU, US, and Singapore endpoints.

German hosting and cloud provider (IONOS SE): domains and SMB web hosting plus IONOS Cloud IaaS/PaaS with EU and US locations, managed Kubernetes, object storage, and DBaaS.

Etiquetas
De un vistazo: Contabo Object Storage vs IONOS
De un vistazoLogo: Contabo Object StorageContabo Object StorageLogo: IONOSIONOS
HQMunich, Germany (Contabo GmbH, HRB 180722)No indicado
ProductHosted Ceph S3 object storageNo indicado
S3 regionsEU (eu2), United States (usc1), Singapore (sin1)No indicado
AddressingPath-style; HTTPS onlyNo indicado
Commercial modelPurchased capacity with optional auto-scale; no per-GB egress on Contabo's stated modelNo indicado
OwnershipKKR majority (2022), Oakley Capital Fund V minorityNo indicado
Key capabilities: Contabo Object Storage vs IONOS
Key capabilitiesLogo: Contabo Object StorageContabo Object StorageLogo: IONOSIONOS
S3-compatible (partial)No indicado
Ceph backendNo indicado
EU region availableNo indicado
German GmbHNo indicado
In-panel DPANo indicado

Contabo Object Storage

  • Ceph S3 API with path-style buckets

    Contabo states the store is Ceph-based and largely S3 compatible, not fully equivalent to Amazon S3. Logging is not supported. Official tool notes require Contabo S3 URLs, path-style buckets, and access_key/secret_key mapped to aws_access_key_id/aws_secret_access_key.

  • EU, US, and Singapore S3 endpoints

    Documented base URLs are eu2.contabostorage.com (European Union), usc1.contabostorage.com (United States), and sin1.contabostorage.com (Singapore). The management API allows one object-storage purchase per location. All locations on an account share the same S3 credentials.

  • Bucket versioning and Object Lock

    Versioning is enabled per bucket via s3api put-bucket-versioning on the regional endpoint. Suspending versioning stops new versions but does not delete old ones. Object Lock can be turned on at bucket creation (example uses GOVERNANCE mode) so objects cannot be overwritten or deleted for a retention period.

  • Capacity auto-scale via management API

    The Contabo API (not the S3 API) orders, upgrades, cancels, and auto-scales purchased space up to a monthly size limit. Usage statistics are exposed there. The open-source cntb CLI (GPL-3.0) wraps the same management API. S3 keys come from the User Management API or the Object Storage panel.

  • Published client list and hard limits

    Documented working tools include cntb, aws cli, rclone, Cyberduck, goofys, s3fs-fuse, s3cmd, WinSCP, Cloudberry Explorer, BucketAnywhere, Virtualmin, Velero, and Plesk. FileZilla Pro is listed as incompatible. Defaults include 5 TB max object size, 100 buckets, 3 million objects (increasable on request), 250 requests per second, and 10 MByte/s default bandwidth.

IONOS

  • Servicios diversos de hosting y dominios

    IONOS proporciona opciones de hosting compartido, VPS, dedicado y en la nube escalables para cualquier necesidad. Registra más de 22 millones de dominios e incluye un dominio gratuito el primer año en muchos planes. Los constructores de sitios web incorporan IA para configuraciones rápidas, mientras las herramientas ecommerce gestionan tiendas online. El correo se integra con Microsoft 365 o Google Workspace, garantizando comunicación fiable sin dependencias de terceros.

  • Infraestructura avanzada en la nube

    La plataforma ofrece clústeres Kubernetes gestionados, bases de datos como MongoDB y PostgreSQL, object storage, servidores GPU y un AI Model Hub para cargas de trabajo de aprendizaje automático. Los centros de datos logran certificación Tier IV para redundancia. Los clientes acceden al 99,99 % de disponibilidad, con opciones de computación de alto rendimiento adecuadas para empresas que ejecutan aplicaciones complejas.

  • Seguridad, soporte y sostenibilidad

    La protección DDoS salvaguarda sitios, complementada por certificados SSL gratuitos. El soporte funciona 24/7 vía teléfono, chat y correo, con consultores personales asignados a cuentas. Todos los centros de datos usan energía 100 % renovable, alineándose con la Estrategia Climática 2030 de IONOS que apunta a reducir emisiones mediante biocombustibles y asociaciones con proveedores.

Assurance & compliance: Contabo Object Storage vs IONOS
Assurance & complianceLogo: Contabo Object StorageContabo Object StorageLogo: IONOSIONOS
Independent security / no-logs audit
Not found

Searched About, help, and product docs. No public independent audit PDF for Object Storage.

No indicado
ISO 27001
Partial

Some Contabo location marketing pages list colocation-facility ISO 27001 (for example Singapore). No company-wide Contabo ISO 27001 certificate found.

No indicado
SOC 2 / SOC 3
Not found

No Contabo-issued SOC 2 or SOC 3 report found. Facility-level SOC marks on some non-EU location pages are not treated as a Contabo attestation.

No indicado
GDPR / EU data protection
Vendor claimed

EU legal entity; DPA available in the Customer Control Panel and listed as covering Object Storage. EU region is optional, not exclusive.

No indicado
US CLOUD Act exposure (indicative)
Partial

Contabo GmbH is German, but KKR (US) has been the majority investor since June 2022 and Contabo sells a US object-storage region. Not legal advice.

No indicado
Data processing agreement (B2B)
Vendor claimed

Customer Control Panel wizard. Object Storage is an explicit covered service. Review the generated PDF.

No indicado
EU AI Act
Not applicable

Object storage IaaS, not an AI system.

No indicado
Considerations & known limitations: Contabo Object Storage vs IONOS
Considerations & known limitationsLogo: Contabo Object StorageContabo Object StorageLogo: IONOSIONOS
US private-equity majority owner
High

Oakley Capital announced in June 2022 that KKR would be majority investor, with Oakley Fund V retaining a minority stake. Treat CLOUD Act exposure as high at the ownership layer even when objects sit on eu2.contabostorage.com.

No indicado
Optional United States object region
Medium

usc1.contabostorage.com is a first-party SKU. Shared credentials across locations make it easy to point a client at the US endpoint by mistake. Pin the EU URL if residency is a hard requirement.

No indicado
Partial S3 compatibility
Medium

Contabo states the Ceph API is not fully compatible with AWS S3. Logging is unsupported. Path-style addressing is required. FileZilla Pro does not work. Test SDK features before migrating production.

No indicado
Default request and bandwidth caps
Medium

Published defaults include 250 API requests per second, 10 MByte/s bandwidth, 100 buckets, and 3 million objects. Auto-scale increases purchased terabytes, not those caps.

No indicado
No public company-wide audit
Medium

No independent Object Storage audit, Contabo-issued ISO 27001, or SOC 2 report was found. Facility ISO/SOC marks on some location pages are not a substitute.

No indicado
No first-party custom TLS hostname
Low

HTTPS-only S3 endpoints reject a simple CNAME. Public websites need a customer-operated reverse proxy. Public-to-private ACL changes may remain cached for up to one hour.

No indicado

Encaje

Contabo Object Storage

Best fit when

  • Teams already on Contabo Cloud VPS or VDS that need a same-account backup or media bucket
  • Workloads that speak standard S3 via rclone, aws cli, Velero, Plesk, or s3cmd and can use path-style URLs
  • Buyers who want capacity-tier billing without per-gigabyte egress modelling
  • Operators who can pin eu2.contabostorage.com and sign the in-panel DPA
  • Buckets that need versioning or Object Lock but not S3 server access logging

Poor fit when

  • Applications that require full Amazon S3 feature parity, especially server access logging or virtual-hosted bucket names
  • Public websites that need a first-party custom hostname and TLS without a reverse proxy
  • Procurement that requires company-wide ISO 27001 or SOC 2, or a vendor with no US private-equity majority owner
  • Strict EU-only policies if anyone on the account might create a US or Singapore store
  • High-QPS or multi-gigabit pipelines that will hit the documented 250 rps or 10 MByte/s defaults

Consider instead when

  • When: You want a German hoster's object store with an EU-concentrated footprint and no US majority PE owner

    Consider: Hetzner Object Storage

    Contabo's own comparison places Hetzner object storage in European data centers and notes a thinner APAC story.

  • When: You need a broader EU compliance portfolio (ISO 27001, SecNumCloud) more than a simple capacity bill

    Consider: OVHcloud Object Storage

    Billing and product surface are more complex than Contabo's single-account IaaS stack.

  • When: You need managed Kubernetes or managed Postgres next to S3, not just raw buckets

    Consider: Scaleway Object Storage

    France-first footprint. Contabo does not sell first-party managed databases or Kubernetes.

  • When: You need Amazon-complete S3 (logging, IAM, global regions) and will accept a US cloud

    Consider: Amazon S3

    Use Contabo only after you have tested the Ceph compatibility gaps against your SDK.

IONOS

Best fit when

No indicado

Poor fit when

No indicado

Open questions for due diligence

Contabo Object Storage

  • Is there a current company-wide ISO 27001 or SOC 2 for Contabo GmbH (not a colocation-facility mark)?
  • Where is the public subprocessor list for Object Storage, backups, support tooling, and the Customer Control Panel?
  • Does Contabo offer server-side encryption at rest and customer-managed keys for objects? Not documented on the pages reviewed.
  • What is the Ceph replication factor / durability target for each object-storage region?
  • The marketing URL https://contabo.com/en/object-storage/ returned Storage VPS content when fetched during research. Confirm the SKU is still sold and the product page has not been retired.

IONOS

No indicado