# What does Colu use?

Colu (colu.com) shows public evidence of 11 tools, according to runsonwhat (last checked 2026-10-17).

- Industry: Internet
- Size: 11–50 employees
- Based in: United States
- Founded: 2014
- LinkedIn: https://www.linkedin.com/company/colu-co

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Amazon Route 53](https://www.runsonwhat.com/reverse/route53) | DNS | DNS records |  |
| [Amazon CloudFront](https://www.runsonwhat.com/reverse/cloudfront) | CDN & Edge | Website code |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Auth0](https://www.runsonwhat.com/reverse/auth0) | Auth & Identity | Custom domain |  |
| [MongoDB Atlas](https://www.runsonwhat.com/reverse/mongodb) | Backend & Database | DNS verification records |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp) | Marketing | Email records |  |
| [Freshdesk](https://www.runsonwhat.com/reverse/freshdesk) | Support & Docs | Custom domain, Email records |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records |  |
| [Mailchimp Transactional](https://www.runsonwhat.com/reverse/mandrill) | Email Delivery | Email records |  |
| [Citrix](https://www.runsonwhat.com/reverse/citrix) | Dev Tools | DNS verification records |  |
| [Tipalti](https://www.runsonwhat.com/reverse/tipalti) | Finance & Legal | Email records |  |

## FAQ

### What tools does Colu use?

As of October 2026, runsonwhat has found 11 tools at Colu (colu.com) in public records. Edge & Hosting: Amazon Route 53 and Amazon CloudFront. Application: Auth0 and MongoDB Atlas. Go-to-market: Mailchimp and Freshdesk. Company Ops: Google Workspace, Mailchimp Transactional and Citrix. Last checked October 17, 2026.

### What email provider does Colu use?

Colu uses Google Workspace for email and office software, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 401,485 companies runsonwhat tracks.

### What does Colu use for customer support?

Colu uses Freshdesk for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Freshdesk through a subdomain that points at Freshdesk and email records. Freshdesk is used by 12,408 companies runsonwhat tracks.

### What marketing software does Colu use?

Colu uses Mailchimp for marketing, according to runsonwhat (October 2026). runsonwhat found Mailchimp through email records that authorize Mailchimp. Mailchimp is used by 114,671 companies runsonwhat tracks.

### What does Colu use for login and identity?

Colu uses Auth0 for sign-in and identity, according to runsonwhat (October 2026). runsonwhat found Auth0 through a subdomain that points at Auth0. Auth0 is used by 5,643 companies runsonwhat tracks.

### Does Colu use Amazon Route 53?

Yes. runsonwhat found Amazon Route 53 at Colu through DNS records that point at Amazon Route 53. Amazon Route 53 is a DNS tool used by 84,490 companies runsonwhat tracks.

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

The companies with the stacks most like Colu's are Merck & Co., Inc., Rahway, NJ, USA, IUPAC | International Union of Pure and Applied Chemistry, Launchmetrics and iboss, according to runsonwhat (October 2026). Each shares 2 to 5 tools with Colu, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Colu uses?

runsonwhat reads public records only. Of the 11 tools at Colu, 4 were found through DNS records, 4 through email records, 2 through subdomains that point at the vendor and 1 through code on colu.com. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and colu.com about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/colu.com (updated October 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.