Klarstein.com's tech stack
What does Klarstein.com use?
Klarstein.com (chal-tec.com) uses at least 15 tools we can see from public records, including Microsoft 365 for email and documents, Google Analytics for analytics, WordPress for its website and CleverReach for marketing. Last checked .
- Industry
- E-commerce
- Size
- 201–1,000 employees
- Based in
- Berlin, Germany
- Founded
- 2005
- Company page
- Tools found
- 15
- Categories
- 9
- Layers
- 5 of 5
- Last checked
- Oct 2026
Klarstein.com'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
6 tools, what the product is built with
Data & Observability
1 tool, what they measure and store
Analytics
Go-to-market
3 tools, how they find and keep customers
Website & CMS
Marketing
Company Ops
4 tools, what the team runs on day to day
Klarstein.com tech stack FAQ
What tools does Klarstein.com use?
We've found 15 tools at Klarstein.com (chal-tec.com). Edge & Hosting: Cloudflare. Application: jQuery, Google Fonts and Vimeo. Data & Observability: Google Analytics. Go-to-market: WordPress, Yoast SEO and CleverReach. Company Ops: Microsoft 365, Atlassian and EasyDMARC. Last checked October 3, 2026.
What email provider does Klarstein.com use?
Klarstein.com uses Microsoft 365 for email and documents. We found Microsoft 365 through email records and DNS verification records.
What analytics tools does Klarstein.com use?
Klarstein.com uses Google Analytics for analytics. We found Google Analytics through website code.
What CMS does Klarstein.com use?
Klarstein.com uses WordPress and Yoast SEO for its website. We found WordPress through website code.
What marketing software does Klarstein.com use?
Klarstein.com uses CleverReach for marketing. We found CleverReach through custom domain.
Does Klarstein.com use Microsoft 365?
Yes. We found Microsoft 365 at Klarstein.com through email records and DNS verification records. Microsoft 365 is used by 245,233 companies we track.
How does runsonwhat know what Klarstein.com uses?
We read public traces only: Klarstein.com'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.