runsonwhat

21torr's tech stack

What does 21torr use?

21torr (21torr.com) uses at least 20 tools we can see from public records, including Calendly for sales, Storyblok for its website, CleverReach for marketing and Sentry for monitoring. 21torr started using GlobalSign in Oct 2026. Last checked .

Industry
Software
Size
51–200 employees
Based in
Reutlingen, Germany
Founded
1994
LinkedIn
Company page
Re-check liveVisit 21torr.com
Tools found
20
Categories
12
Layers
4 of 5
Changes seen
3

21torr's stack, layer by layer

Of 20 tools, 11 came from website code, 6 from DNS verification records, 2 from DNS records and 1 from other records. Each tool links to the other companies we've found using it. The label says what kind of public trace gave it away.

Application

3 tools, what the product is built with

Frontend

AI

Data & Observability

3 tools, what they measure and store

Monitoring

Analytics

Go-to-market

7 tools, how they find and keep customers

Website & CMS

Marketing

Ads & Pixels

Sales & CRM

Company Ops

7 tools, what the team runs on day to day

Workspace

Collaboration

Dev Tools

Security & Compliance

What changed at 21torr

Recent starts and stops

  1. StoppedLottie
  2. StartedGlobalSign
  3. StartedLet's Encrypt

Companies like 21torr also use

Tools common among companies with a similar stack that we haven't found at 21torr.

Companies with a stack like 21torr's

Ranked by shared tools, with rare tools counting more.

More Software companies

Other Software companies we've checked.

21torr tech stack FAQ

What tools does 21torr use?

As of November 2026, runsonwhat has found 20 tools at 21torr (21torr.com) in public records. Application: React, Anthropic and Next.js. Data & Observability: Google Analytics, Google Tag Manager and Sentry. Go-to-market: Google Ads, Meta Pixel and Microsoft Ads. Company Ops: Microsoft 365, Apple Business and Cookiebot. Last checked November 11, 2026.

What sales tools does 21torr use?

The sales tools runsonwhat has found at 21torr are Calendly (November 2026); no CRM shows up in 21torr's public records. runsonwhat found Calendly through Calendly code on 21torr.com. Calendly is used by 31,494 companies runsonwhat tracks.

What email provider does 21torr use?

21torr uses Microsoft 365 for email and office software, alongside Apple Business, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365 and email records. Microsoft 365 is used by 736,709 companies runsonwhat tracks.

What analytics tools does 21torr use?

21torr uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on 21torr.com. Google Analytics is used by 904,185 companies runsonwhat tracks.

What is 21torr's website built with?

21torr uses Storyblok for its website, according to runsonwhat (November 2026). runsonwhat found Storyblok through Storyblok code on 21torr.com. Storyblok is used by 2,799 companies runsonwhat tracks.

What marketing software does 21torr use?

21torr uses CleverReach for marketing, according to runsonwhat (November 2026). runsonwhat found CleverReach through email records that authorize CleverReach. CleverReach is used by 3,635 companies runsonwhat tracks.

Does 21torr use Google Ads?

Yes. runsonwhat found Google Ads at 21torr through Google Ads code on 21torr.com. Google Ads is a Ads & Pixels tool used by 540,389 companies runsonwhat tracks.

Does 21torr use AI tools?

Yes. runsonwhat has found Anthropic at 21torr; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so 21torr may use more AI tools than these.

Has 21torr changed tools recently?

Yes. On runsonwhat's rechecks, 21torr started using GlobalSign and Let's Encrypt (latest on October 19, 2026) and stopped using Lottie (latest on November 11, 2026). A change counts only between two checks of 21torr.com done the same way.

Which companies have a tech stack similar to 21torr's?

The companies with the stacks most like 21torr's are Unlock, K-Recruiting Life Sciences, Ecomail.cz, s.r.o. and Agentur für Digitalstrategie, Konzeption und Webentwicklung, according to runsonwhat (November 2026). Each shares 6 to 12 tools with 21torr, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

How does runsonwhat know what 21torr uses?

runsonwhat reads public records only. Of the 20 tools at 21torr, 11 were found through code on 21torr.com, 8 through DNS records and 1 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and 21torr.com about 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.