# What does Citigroup use?

Citigroup (citigroup.com) shows public evidence of 21 tools, according to runsonwhat (last checked 2026-10-20).

- Industry: Financial Services
- Size: 10,000+ employees
- Based in: New York, United States
- Founded: 1967
- LinkedIn: https://www.linkedin.com/company/citi

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | Website code |  |
| [Akamai](https://www.runsonwhat.com/reverse/akamai) | CDN & Edge | Custom domain, Website code |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Vimeo](https://www.runsonwhat.com/reverse/vimeo) | Media & UI | Website code |  |
| [YouTube](https://www.runsonwhat.com/reverse/youtube) | Media & UI | Website code |  |
| [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code |  |
| [Next.js](https://www.runsonwhat.com/reverse/nextjs) | Frontend | Website code |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Adobe Experience Platform Tags](https://www.runsonwhat.com/reverse/adobe-launch) | Data Pipeline | Website code |  |
| [Adobe Analytics](https://www.runsonwhat.com/reverse/adobe-analytics) | Analytics | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Meta Pixel](https://www.runsonwhat.com/reverse/meta-pixel) | Ads & Pixels | DNS verification records, Website code |  |
| [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code |  |
| [X Ads](https://www.runsonwhat.com/reverse/x-ads) | Ads & Pixels | Website code |  |
| [Salesforce Marketing Cloud](https://www.runsonwhat.com/reverse/sfmc) | Marketing | Custom domain |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records |  |
| [GlobalSign](https://www.runsonwhat.com/reverse/globalsign) | Security & Compliance | DNS verification records, DNS records |  |
| [Proofpoint](https://www.runsonwhat.com/reverse/proofpoint) | Security & Compliance | Email records |  |
| [DigiCert](https://www.runsonwhat.com/reverse/digicert) | Security & Compliance | DNS records |  |
| [OneTrust](https://www.runsonwhat.com/reverse/onetrust) | Security & Compliance | Website code |  |
| [Webex](https://www.runsonwhat.com/reverse/webex) | Collaboration | DNS verification records |  |
| [Postman](https://www.runsonwhat.com/reverse/postman) | Dev Tools | DNS verification records |  |
| [Palo Alto Networks](https://www.runsonwhat.com/reverse/paloalto) | Security & Compliance | DNS verification records |  |

## FAQ

### What tools does Citigroup use?

As of October 2026, runsonwhat has found 21 tools at Citigroup (citigroup.com) in public records. Edge & Hosting: Cloudflare and Akamai. Application: Vimeo, YouTube and React. Data & Observability: Adobe Experience Platform Tags and Adobe Analytics. Go-to-market: Meta Pixel, LinkedIn Insight Tag and X Ads. Company Ops: Microsoft 365, GlobalSign and Proofpoint. Last checked October 20, 2026.

### What email provider does Citigroup use?

Citigroup uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 712,542 companies runsonwhat tracks.

### What analytics tools does Citigroup use?

Citigroup uses Adobe Analytics for analytics, according to runsonwhat (October 2026). runsonwhat found Adobe Analytics through Adobe Analytics code on citigroup.com. Adobe Analytics is used by 6,512 companies runsonwhat tracks.

### What marketing software does Citigroup use?

Citigroup uses Salesforce Marketing Cloud for marketing, according to runsonwhat (October 2026). runsonwhat found Salesforce Marketing Cloud through a subdomain that points at Salesforce Marketing Cloud. Salesforce Marketing Cloud is used by 5,445 companies runsonwhat tracks.

### Does Citigroup use Cloudflare?

Yes. runsonwhat found Cloudflare at Citigroup through Cloudflare code on citigroup.com. Cloudflare is a CDN & Edge tool used by 705,302 companies runsonwhat tracks.

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

The companies with the stacks most like Citigroup's are First American, Ares Management, Paysafe and Shaw Industries Group, according to runsonwhat (October 2026). Each shares 6 to 11 tools with Citigroup, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Citigroup uses?

runsonwhat reads public records only. Of the 21 tools at Citigroup, 10 were found through code on citigroup.com, 8 through DNS records, 2 through subdomains that point at the vendor and 1 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and citigroup.com about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/citigroup.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.