runsonwhat

O2's tech stack

What does O2 use?

O2 (o2.fr) uses at least 29 tools we can see from public records, including Amazon Web Services for hosting, Microsoft 365 for email and documents, Google Analytics for analytics and Webflow for its website. Last checked .

Based in
France
LinkedIn
Company page
Re-check liveVisit o2.fr
Tools found
29
Categories
12
Layers
5 of 5
Changes seen
2

O2'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

3 tools, where the bytes are served from

Hosting & Cloud

CDN & Edge

Application

4 tools, what the product is built with

Frontend

AI

Media & UI

Data & Observability

7 tools, what they measure and store

Analytics

Flags & Experiments

Go-to-market

11 tools, how they find and keep customers

Website & CMS

Marketing

Ads & Pixels

Company Ops

4 tools, what the team runs on day to day

Email Delivery

Workspace

What changed at O2

Recent starts and stops

  1. StartedGoogle Ads
  2. StartedPiano

Companies like O2 also use

Tools common among companies with a similar stack that we haven't found at O2.

Companies with a stack like O2's

Ranked by shared tools, with rare tools counting more.

O2 tech stack FAQ

What tools does O2 use?

As of October 2026, runsonwhat has found 29 tools at O2 (o2.fr) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Akamai. Application: jQuery, Google Fonts and React. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: Google Ads, Meta Pixel and Microsoft Ads. Company Ops: Microsoft 365, Google Workspace and Apple Business. Last checked October 19, 2026.

What cloud does O2 run on?

O2 uses Amazon Web Services for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through a subdomain that points at Amazon Web Services and code on o2.fr. Amazon Web Services is used by 145,262 companies runsonwhat tracks.

What email provider does O2 use?

O2 uses Microsoft 365 for email and office software, alongside Google Workspace and Apple Business, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 706,400 companies runsonwhat tracks.

What analytics tools does O2 use?

O2 uses Google Analytics for analytics, alongside Google Tag Manager, Microsoft Clarity and Hotjar, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on o2.fr. Google Analytics is used by 864,513 companies runsonwhat tracks.

What is O2's website built with?

O2 uses Webflow for its website, according to runsonwhat (October 2026). runsonwhat found Webflow through a subdomain that points at Webflow. Webflow is used by 34,569 companies runsonwhat tracks.

What marketing software does O2 use?

O2 uses Brevo for marketing, alongside Piano, according to runsonwhat (October 2026). runsonwhat found Brevo through a DNS verification record for Brevo and email records. Brevo is used by 78,946 companies runsonwhat tracks.

Does O2 use jQuery?

Yes. runsonwhat found jQuery at O2 through jQuery code on o2.fr. jQuery is a Frontend tool used by 905,790 companies runsonwhat tracks.

Does O2 use AI tools?

Yes. runsonwhat has found OpenAI at O2; OpenAI, for example, through a DNS verification record for OpenAI. AI services called only from servers leave no public trace, so O2 may use more AI tools than these.

Has O2 changed tools recently?

Yes. On runsonwhat's rechecks, O2 started using Google Ads and Piano (latest on October 19, 2026). A change counts only between two checks of o2.fr done the same way.

Which companies have a tech stack similar to O2's?

The companies with the stacks most like O2's are Bostik Global, Bostik, Bostik Australia and Bubble, according to runsonwhat (October 2026). Each shares 5 to 14 tools with O2, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

How does runsonwhat know what O2 uses?

runsonwhat reads public records only. Of the 29 tools at O2, 17 were found through code on o2.fr, 7 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 o2.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.