Karos's tech stack
What does Karos use?
Karos (karos.fr) uses at least 25 tools we can see from public records, including Google Cloud for hosting, Webflow for its website, Brevo for marketing and Mailgun for email delivery. Karos has used Branch since Sep 2017, going by certificate records. Last checked .
- Industry
- Internet
- Size
- 51–200 employees
- Based in
- Paris, France
- Founded
- 2014
- Company page
- Tools found
- 25
- Categories
- 12
- Oldest proven tool
- Sep 2017
- Last checked
- Nov 2026
Karos's stack, layer by layer
Of 25 tools, 15 came from website code, 4 from DNS verification records, 3 from custom domain and 3 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.
Edge & Hosting
3 tools, where the bytes are served from
Application
5 tools, what the product is built with
Frontend
Data & Observability
2 tools, what they measure and store
Go-to-market
10 tools, how they find and keep customers
Company Ops
5 tools, what the team runs on day to day
Email Delivery
Security & Compliance
What changed at Karos
Companies like Karos also use
Tools common among companies with a similar stack that we haven't found at Karos.
Companies with a stack like Karos's
Ranked by shared tools, with rare tools counting more.
Bolt.EarthInternet · 201–1,000 people11in common
GOQiiHealth, Wellness and Fitness · 51–200 people5in common
Minute KeyConsumer Services · 51–200 people10in common
Channel Corp.Software · 51–200 people9in common
StoryverseIT Services · 51–200 people5in common
Guzman y GomezFast Food7in common
EyeballSports · 11–50 people12in common
Ibis Styles Nha TrangHospitality · 201–1,000 people7in common
More Internet companies
Other Internet companies we've checked.
Karos tech stack FAQ
What tools does Karos use?
As of November 2026, runsonwhat has found 25 tools at Karos (karos.fr) in public records. Edge & Hosting: Cloudflare, Google Cloud and Gandi. Application: jQuery, Google Fonts and Vimeo. Data & Observability: Google Analytics and Google Tag Manager. Go-to-market: Google Ads, Meta Pixel and Microsoft Ads. Company Ops: Microsoft 365, Google Workspace and Apple Business. Last checked November 3, 2026.
What cloud does Karos run on?
Karos uses Google Cloud for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found Google Cloud through a subdomain that points at Google Cloud. Google Cloud is used by 77,430 companies runsonwhat tracks.
What email provider does Karos use?
Karos uses Microsoft 365 for email and office software, alongside Google Workspace and Apple Business, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 727,583 companies runsonwhat tracks.
What analytics tools does Karos use?
Karos uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on karos.fr. Google Analytics is used by 905,546 companies runsonwhat tracks.
What is Karos's website built with?
Karos uses Webflow for its website, according to runsonwhat (November 2026). runsonwhat found Webflow through a subdomain that points at Webflow and code on karos.fr. Webflow is used by 35,996 companies runsonwhat tracks.
What marketing software does Karos use?
Karos uses Brevo for marketing, alongside Ahrefs and Branch, according to runsonwhat (November 2026). runsonwhat found Brevo through a DNS verification record for Brevo. Brevo is used by 82,653 companies runsonwhat tracks.
How long has Karos used Branch?
Karos has used Branch since at least September 2017, going by the first public certificate of the karos.fr subdomain that points at Branch.
Does Karos use jQuery?
Yes. runsonwhat found jQuery at Karos through jQuery code on karos.fr. jQuery is a Frontend tool used by 929,345 companies runsonwhat tracks.
Which companies have a tech stack similar to Karos's?
The companies with the stacks most like Karos' are Bolt.Earth, GOQii, Minute Key and Channel, according to runsonwhat (November 2026). Each shares 5 to 11 tools with Karos, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.
How does runsonwhat know what Karos uses?
runsonwhat reads public records only. Of the 25 tools at Karos, 15 were found through code on karos.fr, 5 through DNS records, 3 through subdomains that point at the vendor and 2 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and karos.fr 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.