runsonwhat

IONOS Inc.'s tech stack

What does IONOS Inc. use?

IONOS Inc. (1and1.com) uses at least 13 tools we can see from public records, including IONOS for hosting, Sectigo for security, Microsoft 365 for email and documents and Mailchimp for marketing. IONOS Inc. went back to Atlassian in Nov 2026. Last checked .

Based in
Philadelphia, United States
Re-check liveVisit 1and1.com
Tools found
13
Categories
8
Layers
5 of 5
Changes seen
8

IONOS Inc.'s stack, layer by layer

Of 13 tools, 4 came from DNS verification records, 3 from website code, 3 from DNS records 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

1 tool, where the bytes are served from

Hosting & Cloud

Application

2 tools, what the product is built with

Frontend

Data & Observability

1 tool, what they measure and store

Flags & Experiments

Go-to-market

2 tools, how they find and keep customers

Marketing

Company Ops

7 tools, what the team runs on day to day

Workspace

Collaboration

Dev Tools

Security & Compliance

What changed at IONOS Inc.

Recent starts and stops

  1. Came backAtlassian
  2. Came backFigma
  3. Came backGoogle Search Console
  4. Came backMicrosoft 365
  5. StoppedMicrosoft 365
  6. StoppedAtlassian
  7. StoppedGoogle Search Console
  8. StoppedFigma

Companies like IONOS Inc. also use

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

Companies with a stack like IONOS Inc.'s

Ranked by shared tools, with rare tools counting more.

IONOS Inc. tech stack FAQ

What tools does IONOS use?

As of November 2026, runsonwhat has found 13 tools at IONOS (1and1.com) in public records. Edge & Hosting: IONOS. Application: Tailwind CSS and Next.js. Data & Observability: Kameleoon. Go-to-market: Mailchimp. Company Ops: Microsoft 365, Atlassian and Sectigo. Last checked November 7, 2026.

What cloud does IONOS run on?

IONOS uses IONOS for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found IONOS through a subdomain that points at IONOS and email records. IONOS is used by 23,568 companies runsonwhat tracks.

What email provider does IONOS use?

IONOS 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 734,307 companies runsonwhat tracks.

What marketing software does IONOS use?

IONOS uses Mailchimp for marketing, according to runsonwhat (November 2026). runsonwhat found Mailchimp through email records that authorize Mailchimp. Mailchimp is used by 119,042 companies runsonwhat tracks.

Does IONOS use Tailwind CSS?

Yes. runsonwhat found Tailwind CSS at IONOS through Tailwind CSS code on 1and1.com. Tailwind CSS is a Frontend tool used by 74,823 companies runsonwhat tracks.

Has IONOS changed tools recently?

Yes. On runsonwhat's rechecks, IONOS started using Atlassian, Figma and Google Search Console (latest on November 7, 2026) and stopped using Microsoft 365, Atlassian and Google Search Console (latest on October 31, 2026). A change counts only between two checks of 1and1.com done the same way.

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

The companies with the stacks most like IONOS' are Berge & Meer Touristik, IONOS SE, IONOS Cloud and STRATO, according to runsonwhat (November 2026). Each shares 4 to 8 tools with IONOS, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

How does runsonwhat know what IONOS uses?

runsonwhat reads public records only. Of the 13 tools at IONOS, 7 were found through DNS records, 3 through code on 1and1.com, 2 through email records and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and 1and1.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.