runsonwhat

Closed GmbH's tech stack

What does Closed GmbH use?

Closed GmbH (closed.com) uses at least 15 tools we can see from public records, including Microsoft 365 for email and documents, Freshdesk for customer support, Mailchimp for marketing and Cloudflare for content delivery. Last checked .

Industry
Clothing
Size
51–200 employees
Based in
Hamburg, Germany
Founded
1978
LinkedIn
Company page
Re-check liveVisit closed.com
Tools found
15
Categories
9
Layers
4 of 5
Last checked
Oct 2026

Closed GmbH's stack, layer by layer

Each tool links to the other companies we've found using it. The label says what kind of public trace gave it away.

Edge & Hosting

1 tool, where the bytes are served from

CDN & Edge

Application

2 tools, what the product is built with

AI

Go-to-market

5 tools, how they find and keep customers

Marketing

Ads & Pixels

Support & Docs

Company Ops

7 tools, what the team runs on day to day

Email Delivery

Workspace

Dev Tools

Security & Compliance

Companies like Closed GmbH also use

Tools common among companies with a similar stack that we haven't found at Closed GmbH.

Companies with a stack like Closed GmbH's

Ranked by shared tools, with rare tools counting more.

Closed GmbH tech stack FAQ

What tools does Closed GmbH use?

We've found 15 tools at Closed GmbH (closed.com). Edge & Hosting: Cloudflare. Application: Anthropic and OpenAI. Go-to-market: Meta Pixel, Mailchimp and Brevo. Company Ops: Microsoft 365, Apple Business and Amazon SES. Last checked October 2, 2026.

What email provider does Closed GmbH use?

Closed GmbH uses Microsoft 365 and Apple Business for email and documents. We found Microsoft 365 through email records and DNS verification records.

What does Closed GmbH use for customer support?

Closed GmbH uses Freshdesk for customer support. We found Freshdesk through custom domain.

What marketing software does Closed GmbH use?

Closed GmbH uses Mailchimp and Brevo for marketing. We found Mailchimp through email records.

Does Closed GmbH use Microsoft 365?

Yes. We found Microsoft 365 at Closed GmbH through email records and DNS verification records. Microsoft 365 is used by 245,233 companies we track.

How does runsonwhat know what Closed GmbH uses?

We read public traces only: Closed GmbH's DNS and email records, certificate logs, the code its website loads, and published subprocessor lists. A tool is listed only when a direct record backs it up. DNS is rechecked weekly and the website monthly.

We read public traces only: DNS and email records, certificate logs, website code and published subprocessor lists. A tool is listed when a direct record backs it up, and dropped when a recheck no longer finds it. Is this your company? See how to opt out.