# What does Mailchimp use?

Mailchimp (mailchi.mp) shows public evidence of 15 tools, according to runsonwhat (last checked 2026-11-09).

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Amazon Web Services](https://www.runsonwhat.com/reverse/aws) | Hosting & Cloud | Website code |  |
| [Akamai](https://www.runsonwhat.com/reverse/akamai) | CDN & Edge | DNS records |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Bugsnag](https://www.runsonwhat.com/reverse/bugsnag) | Monitoring | Website code |  |
| [Optimizely](https://www.runsonwhat.com/reverse/optimizely) | Flags & Experiments | Website code |  |
| [Segment](https://www.runsonwhat.com/reverse/segment) | Analytics | Website code |  |
| [FullStory](https://www.runsonwhat.com/reverse/fullstory) | Analytics | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp) | Marketing | Custom domain |  |
| [Marketo](https://www.runsonwhat.com/reverse/marketo) | Marketing | Website code |  |
| [Branch](https://www.runsonwhat.com/reverse/branch) | Marketing | Website code |  |
| [Bitly](https://www.runsonwhat.com/reverse/bitly) | Marketing | Custom domain |  |
| [Navattic](https://www.runsonwhat.com/reverse/navattic) | Marketing | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [OneTrust](https://www.runsonwhat.com/reverse/onetrust) | Security & Compliance | Website code |  |

## FAQ

### What tools does Mailchimp use?

As of November 2026, runsonwhat has found 15 tools at Mailchimp (mailchi.mp) in public records. Edge & Hosting: Amazon Web Services and Akamai. Data & Observability: Bugsnag, Optimizely and Segment. Go-to-market: Mailchimp, Marketo and Branch. Company Ops: OneTrust. Last checked November 9, 2026.

### What cloud does Mailchimp run on?

Mailchimp uses Amazon Web Services for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on mailchi.mp. Amazon Web Services is used by 147,632 companies runsonwhat tracks.

### What analytics tools does Mailchimp use?

Mailchimp uses Segment for analytics, alongside FullStory, according to runsonwhat (November 2026). runsonwhat found Segment through Segment code on mailchi.mp. Segment is used by 6,793 companies runsonwhat tracks.

### What marketing software does Mailchimp use?

Mailchimp uses Mailchimp for marketing, alongside Marketo, Branch and Bitly, according to runsonwhat (November 2026). runsonwhat found Mailchimp through a subdomain that points at Mailchimp. Mailchimp is used by 119,257 companies runsonwhat tracks.

### What monitoring tools does Mailchimp use?

Mailchimp uses Bugsnag for monitoring, according to runsonwhat (November 2026). runsonwhat found Bugsnag through Bugsnag code on mailchi.mp. Bugsnag is used by 8,195 companies runsonwhat tracks.

### Does Mailchimp use OneTrust?

Yes. runsonwhat found OneTrust at Mailchimp through OneTrust code on mailchi.mp. OneTrust is a Security & Compliance tool used by 35,942 companies runsonwhat tracks.

### Which companies have a tech stack similar to Mailchimp's?

The companies with the stacks most like Mailchimp's are BigID, Samanage, Airbyte and Soldo Italia, according to runsonwhat (November 2026). Each shares 3 to 7 tools with Mailchimp, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Mailchimp uses?

runsonwhat reads public records only. Of the 15 tools at Mailchimp, 10 were found through code on mailchi.mp, 2 through DNS records, 2 through subdomains that point at the vendor and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and mailchi.mp about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/mailchi.mp (updated November 2026). Counts are companies with direct public evidence of the tool (DNS records, certificates, website code, a real-browser crawl, subprocessor lists), so they are lower bounds. Methodology: https://www.runsonwhat.com/methodology.