# Ionos Ionos declares [25 subprocessors](https://thirdpartyindex.com/vendors/ionos#subprocessors), plus 1 of its own affiliates, in [its subprocessor list](https://www.ionos.co.uk/terms-gtc/fileadmin/pdf/terms-gtc/UK/AVV/EN_Anhang_2_IONOS_AVV_Liste_Subunternehmen_v4_2_EN.pdf), which we last checked on 2026-11-11 ([evidence](https://thirdpartyindex.com/evidence/232327)). They include [Amazon Web Services](https://thirdpartyindex.com/vendors/amazon-web-services), [Google Cloud](https://thirdpartyindex.com/vendors/google-cloud) and [OpenAI](https://thirdpartyindex.com/vendors/openai). No published changes since we first read it on 2026-11-07. [3 tracked vendors](https://thirdpartyindex.com/vendors/ionos#used-by) name Ionos as a subprocessor, including [Melious](https://thirdpartyindex.com/vendors/melious), [Conceptboard](https://thirdpartyindex.com/vendors/conceptboard) and [Skribble](https://thirdpartyindex.com/vendors/skribble). Ionos (ionos.com): subprocessors, data processing agreement, security documents and changes, as monitored by Third Party Index. - Page: https://thirdpartyindex.com/vendors/ionos - Documents last verified: 2026-11-11 - Transparency rating: 56/100 (how much it publishes, not how secure it is): Subprocessor list 30/30; Processing locations 0/8 (partial); Purposes 7/7; Data processing addendum 0/12 (not found); Trust center 0/8 (not found); Privacy policy 0/6 (not found); security.txt 6/6; Security page 5/5; Status page 0/5 (not found); Vulnerability disclosure 0/5 (not found); Pages still reachable 8/8 - Supply chain: relies on 9 tracked vendors directly, 72 within two hops, 269 within three; 3 tracked vendors rely on it directly, 4 within two hops, 4 within three - Cite as: Ionos, Third Party Index, https://thirdpartyindex.com/vendors/ionos (data CC BY 4.0) ## Documents | Document | URL | Last verified | Last changed | |---|---|---|---| | Subprocessor list | https://www.ionos.co.uk/terms-gtc/fileadmin/pdf/terms-gtc/UK/AVV/EN\_Anhang\_2\_IONOS\_AVV\_Liste\_Subunternehmen\_v4\_2\_EN.pdf | 2026-11-11 | 2026-11-07 | | Security page | https://www.ionos.com/security/ssl-certificate | 2026-11-11 | 2026-11-11 | | security.txt | https://www.ionos.com/.well-known/security.txt | 2026-11-11 | 2026-11-11 | ## Subprocessors (25) As its own list states them. | Subprocessor | Purpose | Location | Listed since | |---|---|---|---| | 1&1 Mail & Media GmbH, Elgendorfer Str. | • Mail Basic & Mail Business | — | 2026-11-07 | | [Amazon Web Services EMEA, SARL](https://thirdpartyindex.com/vendors/amazon-web-services.md) | MyWebsite Creator, -Essential, -Shop: Hosting the website and the editor, as well as operating the CDN | — | 2026-11-07 | | Arsys Internet S.L.U. | Customer support and operation of the vServer (VPS), cloud server, private cloud platforms and Dedicated Server. Integration on Cloud Backup & MyDefender. | — | 2026-11-07 | | [Cloudflare Inc.](https://thirdpartyindex.com/vendors/cloudflare.md) | Hosting Products: Operation of the Content Delivery Network (CDN) | — | 2026-11-07 | | CM4all GmbH | Website Design Service: Operation of the platform for editing and publishing the website, as well as hosting the website. | — | 2026-11-07 | | [Duda Inc.](https://thirdpartyindex.com/vendors/duda-co.md) | MyWebsite Creator, -Essential, -Shop: Service provider for the website editor and the publication/operation of the website | — | 2026-11-07 | | Ecwid | MyWebsite Now, Shop Integration, Social Buy Button Integration and operation of the online shop "MyWebsiteCreator", "MyWebsite Shop", "MyWebsite Essential" | — | 2026-11-07 | | ePages GmbH | Shop (earlier product generation) and MyShop of MyWebsite (version 8): Maintenance and operation of the online shop platform | — | 2026-11-07 | | Fasthosts Internet Limited | Hosted Exchange Providing email services, including creating, configuring and deleting email addresses. | — | 2026-11-07 | | [Google Ireland Limited](https://thirdpartyindex.com/vendors/google-cloud.md) | • MyWebsite Now Map service for websites • MyWebsite Creator, -Essential, -Shop, MyWebsite Vers.8 Retrieve user data for online business card • MyWebsite Creator, -Essential, -Shop Translation service • Mobile access to the IONOS Control Center (Hosting Mobile App) | — | 2026-11-07 | | Jellyfish Group Limited | Google Ads Management Service (Search Engine Marketing): Setting up and managing Google Ads campaigns for your website. | — | 2026-11-07 | | [Mailjet SAS](https://thirdpartyindex.com/vendors/mailjet.md) | E-Mail-Marketing: Create, send and manage newsletter campaigns. | — | 2026-11-07 | | Mapbox, 740 15th St NW, Washington, DC 20005, USA | MyWebsite Creator, -Essential, -Shop: Map service for directions and multi location | — | 2026-11-07 | | Newo.ai, Inc | Provision of an AI-based telephone assistant for the purpose of voice interactions in the telephony environment. | — | 2026-11-07 | | Open-Xchange GmbH | Mail Basic & Mail Business: Provision and operation of the webmailer Use of the OX App Suite: Setting up, configuring and deleting accounts and users | — | 2026-11-07 | | [OpenAI LLC](https://thirdpartyindex.com/vendors/openai.md) (AI model provider: OpenAI) | Creation of texts as part of the MWS Now product for use on the customer website using Chat GPT 3.5 Turbo. If the customer orders and uses this service, the content information will be transferred to OpenAI. | — | 2026-11-07 | | Plesk International GmbH | Provision and use of the server administration software. | — | 2026-11-07 | | rankingCoach GmbH | Search engine optimization rankingCoach: Optimizing your website's search results on Google. | — | 2026-11-07 | | SiteLock LLC | Hosting Products: Protecting the website from malware, eliminating malware on the website using hosting products | — | 2026-11-07 | | [Strato AG](https://thirdpartyindex.com/vendors/strato.md) | • Email archiving Archiving emails | — | 2026-11-07 | | [uberall GmbH](https://thirdpartyindex.com/vendors/uberall.md) | List Local: Publication of company data in online directories | — | 2026-11-07 | | [Usercentrics GmbH](https://thirdpartyindex.com/vendors/usercentrics.md) | MyWebsite Creator, -Essential, -Shop: Operation of the Consent Management Platform (CMP) | — | 2026-11-07 | | Virtuozzo International GmbH | Provision and use of virtualization software for virtual servers purchased before 07/2016. | — | 2026-11-07 | | Voiceable GmbH Greifswalder Str. 200 B | Provision of AI-powered assistants for the purpose of voice and chat interactions in telephony environment. | — | 2026-11-07 | | we22 Solutions GmbH | Website Design Service: Creation and modification of the website on behalf of the customer. Website project organization and communication with the customer. | — | 2026-11-07 | Read from ([evidence](https://thirdpartyindex.com/evidence/232327)). CSV: https://thirdpartyindex.com/vendors/ionos/subprocessors.csv AI model providers (or a cloud provider's AI model service) among these entries: 1. All vendors that list one: https://thirdpartyindex.com/ai ### Its own affiliates (1) - IONOS SE, Elgendorfer Str. 57 ## Web Technologies Ionos's homepage made 279 requests to 36 domains, 17 services controlled by another company, and 1 domain not identified. Loaded on 2026-11-07 by a browser that accepted nothing; other visits may load more or less. What a page loads is not a list of who receives customer data. 17 third parties by category: Advertising 6 (Google Cloud, Microsoft, Podscribe, Reddit, Inc., Spotify AB; reviewed: AdsWizz Inc.); Analytics 5 (TikTok, Meta, LinkedIn, Hotjar, TikTok); Marketing automation 2 (Genesys Cloud Services, Inc., HubSpot); A/B Testing 1 (reviewed: Kameleoon); CDN 1 (UNPKG); RUM 1 (reviewed: New Relic); Reviews 1 (usually detected as Reviews: Trustpilot). Each company that appears controlled by another organization is counted once, under the main category of the technologies detected from it on this homepage or, when none was, the category recorded from the company's own page (marked reviewed) or else the one it is usually detected as on other published homepages (marked as such); unclassified: none of these. ### Third parties (17) - Genesys Cloud Services, Inc.: 43 requests to mypurecloud.de; Genesys Cloud 9.0 - Google Cloud: 19 requests to google.com, doubleclick.net, googletagmanager.com, google-analytics.com; DoubleClick Floodlight, Google Analytics, Google Tag Manager (its subprocessor list names it too) - Kameleoon: 19 requests to kameleoon.io - HubSpot: 10 requests to hubspot.com, hs-scripts.com, hs-analytics.net, hs-banner.com, hsadspixel.net, hsforms.com, hubapi.com; HubSpot - Microsoft: 8 requests to bing.com, bing.net; Microsoft Advertising - TikTok: 8 requests to tiktok.com; TikTok Pixel - Meta: 7 requests to facebook.net, facebook.com; Facebook Pixel 2.9.438 - New Relic: 5 requests to nr-data.net, newrelic.com - LinkedIn: 3 requests to linkedin.com, licdn.com; Linkedin Insight Tag - Podscribe: 3 requests to pdscrb.com, d34r8q7sht0t9k.cloudfront.net; Podscribe - Reddit, Inc.: 3 requests to reddit.com, redditstatic.com; Reddit Ads - Spotify AB: 3 requests to spotify.com, byspotify.com; Spotify Pixel - Hotjar: 2 requests to hotjar.com; Hotjar - Trustpilot: 2 requests to trustpilot.com - UNPKG: 2 requests to unpkg.com; Unpkg, web-vitals 3 - AdsWizz Inc.: 1 request to adswizz.com - TikTok: 1 request to tiktokw.us; TikTok Pixel ### Unknown (1) Domains not identified yet: seaskypro.com ### First party (1) - Ionos: 138 requests to ionos.com, uicdn.net; Apache HTTP Server, Framer Motion, HSTS, Kameleoon, Keen-Slider, Next.js 16.1.5, Open Graph, PWA, React, Sentry 6.19.6, Svelte, Turbopack, Webpack, core-js 3.32.2 7 tracked companies loaded by the homepage are not in Ionos's subprocessor list. A website can use a service without it processing customer data. ## Subprocessor of (3) Tracked vendors whose own subprocessor lists name it, and what they say they use it for. - [Conceptboard](https://thirdpartyindex.com/vendors/conceptboard.md): Cloud provider; Cloud services - [Melious](https://thirdpartyindex.com/vendors/melious.md): Elgendorfer Str. 57, 56410 Montabaur, Deutschland - [Skribble](https://thirdpartyindex.com/vendors/skribble.md): Data centre services, hosting / infrastructure operation. ## Incidents reported by Ionos's subprocessors Incidents reported in the last 30 days on their own status pages by 1 vendor Ionos lists as a subprocessor. A subprocessor list names a company, not the service an incident touched. - 2026-11-11: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Unable to start new Workspace Agent runs (critical) - 2026-11-11: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Elevated errors affecting logins, sign-ups, and ChatGPT features (minor) - 2026-11-10: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Incorrect cost data in Costs API exports (no impact stated) - 2026-11-09: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Elevated Errors On API (minor) - 2026-11-09: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Elevated ChatGPT Conversation Errors (minor) - 2026-11-08: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Elevated errors with image generation (minor) - 2026-11-06: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Elevated error rates with some U.S. business Mastercards (no impact stated) - 2026-11-05: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported ChatGPT Work and Dots Errors (minor) - 2026-11-04: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Elevated error rates across paid ChatGPT plans (minor) - 2026-11-03: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported File upload errors in ChatGPT (minor) - 2026-10-30: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Elevated errors with search in Dots, ChatGPT Work, and certain ChatGPT thinking experiences (minor) - 2026-10-30: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Elevated errors for GPT Image 2 API image edits (minor) - 2026-10-27: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported 6.1 Sol Degraded Model Performance (minor) - 2026-10-27: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Elevated error rates for most hosted Code Reviews and Security Reviews on private GitHub repositories (no impact stated) - 2026-10-26: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Elevated error rates for Ads POST requests (minor) - 2026-10-23: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Degraded experience with ChatGPT app connections using CIMD (minor) - 2026-10-23: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Help Center Chat Support Degraded (no impact stated) - 2026-10-23: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Delays in customer support responses (no impact stated) - 2026-10-22: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported New Ad Accounts failing to provision admins (minor) - 2026-10-22: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Degraded Performance of Dots on Enterprise (minor) - 2026-10-22: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Elevated ChatGPT conversation and Responses API errors (minor) - 2026-10-21: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Authentication errors for some users (major) - 2026-10-21: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Elevated error rates for gpt-5.6-luna API requests (minor) - 2026-10-21: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Elevated FedRAMP API error rates for Astra and Sol (minor) - 2026-10-21: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Degraded performance in ChatGPT, Codex, and APIs (minor) - 2026-10-19: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported File Download errors (minor) - 2026-10-15: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Widespread feature degradation (major) - 2026-10-14: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Delayed Costs data in the Compliance API (minor) - 2026-10-14: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Limited availability on gpt-image-2.5-flare and gpt-image-2.5-sunburst (minor) - 2026-10-14: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Degraded performance in Codex and ChatGPT Work (minor) - 2026-10-13: [OpenAI](https://thirdpartyindex.com/vendors/openai#status), which Ionos lists as a subprocessor, reported Degraded performance in GPT-6.1 Sol Codex and Work mode (minor) The subprocessor list as we read it on any date: https://thirdpartyindex.com/labs/time-machine/ionos ## Security contact From its security.txt (https://www.ionos.com/.well-known/security.txt) ([evidence](https://thirdpartyindex.com/evidence/258466)): - Contact: mailto: security@ionos.com - Disclosure policy: https://www.ionos.com/it-security - Encryption key: https://keys.openpgp.org/search?q=security%40ionos.com - Security jobs: https://jobs.ionos.com/ - Languages: en - Expired 2026-02-11 --- Third Party Index (https://thirdpartyindex.com) monitors vendors' public security and privacy documents and keeps each version as evidence. Data CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/); vendors' own documents are theirs. API: https://thirdpartyindex.com/api