runsonwhat

EF's tech stack

What does EF use?

EF (ef-danmark.dk) uses at least 8 tools we can see from public records, including Microsoft 365 for email and documents, Storyblok for its website, Cloudflare for content delivery and Chatbase for AI. Last checked .

Based in
Denmark
Re-check liveVisit ef-danmark.dk
Tools found
8
Categories
7
Layers
5 of 5
Last checked
Oct 2026

EF'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

2 tools, where the bytes are served from

CDN & Edge

Application

2 tools, what the product is built with

Frontend

AI

Data & Observability

1 tool, what they measure and store

Flags & Experiments

Go-to-market

2 tools, how they find and keep customers

Website & CMS

Marketing

Company Ops

1 tool, what the team runs on day to day

Workspace

Companies like EF also use

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

Companies with a stack like EF's

Ranked by shared tools, with rare tools counting more.

EF tech stack FAQ

What tools does EF use?

As of November 2026, runsonwhat has found 8 tools at EF (ef-danmark.dk) in public records. Edge & Hosting: Cloudflare and Amazon CloudFront. Application: Next.js and Chatbase. Data & Observability: Optimizely. Go-to-market: Storyblok. Company Ops: Microsoft 365. Last checked October 31, 2026.

What email provider does EF use?

EF uses Microsoft 365 for email and office software, 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 719,668 companies runsonwhat tracks.

What is EF's website built with?

EF uses Storyblok for its website, according to runsonwhat (November 2026). runsonwhat found Storyblok through Storyblok code on ef-danmark.dk. Storyblok is used by 2,775 companies runsonwhat tracks.

Does EF use Cloudflare?

Yes. runsonwhat found Cloudflare at EF through DNS records that point at Cloudflare and code on ef-danmark.dk. Cloudflare is a CDN & Edge tool used by 724,901 companies runsonwhat tracks.

Does EF use AI tools?

Yes. runsonwhat has found Chatbase at EF; Chatbase, for example, through Chatbase code on ef-danmark.dk. AI services called only from servers leave no public trace, so EF may use more AI tools than these.

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

The companies with the stacks most like EF's are GB Bank, West Central Technology, Visobath and Leonardo Technology, S.r.o., according to runsonwhat (November 2026). Each shares 3 to 4 tools with EF, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

How does runsonwhat know what EF uses?

runsonwhat reads public records only. Of the 8 tools at EF, 5 were found through code on ef-danmark.dk, 3 through DNS records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and ef-danmark.dk 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.