# What does Rex use?

Rex (rexhomes.com) shows public evidence of 9 tools, according to runsonwhat (last checked 2026-10-20).

- Industry: Real Estate
- Size: 201–1,000 employees
- Based in: Austin, United States
- Founded: 2014
- LinkedIn: https://www.linkedin.com/company/rex---real-estate-exchange

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [GoDaddy](https://www.runsonwhat.com/reverse/godaddy) | DNS | DNS records |  |
| [Heroku](https://www.runsonwhat.com/reverse/heroku) | Hosting & Cloud | Custom domain |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Salesforce](https://www.runsonwhat.com/reverse/salesforce) | Sales & CRM | Email records |  |
| [Ortto](https://www.runsonwhat.com/reverse/ortto) | Marketing | Email records |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records |  |
| [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records |  |
| [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records |  |
| [Amazon SES](https://www.runsonwhat.com/reverse/ses) | Email Delivery | Email records |  |
| [dmarcian](https://www.runsonwhat.com/reverse/dmarcian) | Security & Compliance | Email records |  |

## FAQ

### What tools does Rex use?

As of October 2026, runsonwhat has found 9 tools at Rex (rexhomes.com) in public records. Edge & Hosting: GoDaddy and Heroku. Go-to-market: Salesforce and Ortto. Company Ops: Google Workspace, SendGrid and Atlassian. Last checked October 20, 2026.

### What cloud does Rex run on?

Rex uses Heroku for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Heroku through a subdomain that points at Heroku. Heroku is used by 2,943 companies runsonwhat tracks.

### What CRM does Rex use?

Rex uses Salesforce for its CRM, according to runsonwhat (October 2026). runsonwhat found Salesforce through email records that authorize Salesforce. Salesforce is used by 34,180 companies runsonwhat tracks.

### What email provider does Rex use?

Rex 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 403,705 companies runsonwhat tracks.

### What marketing software does Rex use?

Rex uses Ortto for marketing, according to runsonwhat (October 2026). runsonwhat found Ortto through email records that authorize Ortto. Ortto is used by 677 companies runsonwhat tracks.

### Does Rex use GoDaddy?

Yes. runsonwhat found GoDaddy at Rex through DNS records that point at GoDaddy. GoDaddy is a DNS tool used by 249,053 companies runsonwhat tracks.

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

The companies with the stacks most like Rex's are Michigan’s Cannabis Retailer | Skymint, Camps Equinunk and Blue Ridge, Isolutions and Nellis Auction, according to runsonwhat (October 2026). Each shares 3 to 3 tools with Rex, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Rex uses?

runsonwhat reads public records only. Of the 9 tools at Rex, 6 were found through email records, 2 through DNS 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 rexhomes.com about monthly.


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