# What does Rex Specs use?

Rex Specs (rexspecs.com) shows public evidence of 15 tools, according to runsonwhat (last checked 2026-10-24).

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | Website code |  |
| [GoDaddy](https://www.runsonwhat.com/reverse/godaddy) | DNS | DNS records |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft Clarity](https://www.runsonwhat.com/reverse/clarity) | Analytics | Website code |  |
| [Crazy Egg](https://www.runsonwhat.com/reverse/crazyegg) | Analytics | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp) | Marketing | Email records |  |
| [Shopify](https://www.runsonwhat.com/reverse/shopify) | Website & CMS | Custom domain, Email records, DNS records, Website code |  |
| [Klaviyo](https://www.runsonwhat.com/reverse/klaviyo) | Marketing | DNS verification records, Website code |  |
| [Judge.me](https://www.runsonwhat.com/reverse/judge-me) | Marketing | Website code |  |
| [Rebuy](https://www.runsonwhat.com/reverse/rebuy) | Marketing | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records |  |
| [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records |  |
| [UserWay](https://www.runsonwhat.com/reverse/userway) | Security & Compliance | Website code |  |
| [DMARC Digests](https://www.runsonwhat.com/reverse/dmarcdigests) | Security & Compliance | Email records |  |

## FAQ

### What tools does Rex Specs use?

As of October 2026, runsonwhat has found 15 tools at Rex Specs (rexspecs.com) in public records. Edge & Hosting: Cloudflare and GoDaddy. Data & Observability: Microsoft Clarity and Crazy Egg. Go-to-market: Mailchimp, Shopify and Klaviyo. Company Ops: Google Workspace, Apple Business and UserWay. Last checked October 24, 2026.

### What email provider does Rex Specs use?

Rex Specs uses Google Workspace for email and office software, alongside Apple Business, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 405,344 companies runsonwhat tracks.

### What analytics tools does Rex Specs use?

Rex Specs uses Microsoft Clarity for analytics, alongside Crazy Egg, according to runsonwhat (October 2026). runsonwhat found Microsoft Clarity through Microsoft Clarity code on rexspecs.com. Microsoft Clarity is used by 134,385 companies runsonwhat tracks.

### What is Rex Specs's website built with?

Rex Specs uses Shopify for its website, according to runsonwhat (October 2026). runsonwhat found Shopify through a subdomain that points at Shopify and email records. Shopify is used by 59,884 companies runsonwhat tracks.

### What marketing software does Rex Specs use?

Rex Specs uses Mailchimp for marketing, alongside Klaviyo, Judge.me and Rebuy, according to runsonwhat (October 2026). runsonwhat found Mailchimp through email records that authorize Mailchimp. Mailchimp is used by 116,231 companies runsonwhat tracks.

### Does Rex Specs use Cloudflare?

Yes. runsonwhat found Cloudflare at Rex Specs through Cloudflare code on rexspecs.com. Cloudflare is a CDN & Edge tool used by 707,848 companies runsonwhat tracks.

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

The companies with the stacks most like Rex Specs' are Rounded Gear, 100%, TheFrozenBean and COMPLEMENT, according to runsonwhat (October 2026). Each shares 8 to 11 tools with Rex Specs, 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 Specs uses?

runsonwhat reads public records only. Of the 15 tools at Rex Specs, 7 were found through code on rexspecs.com, 3 through email records, 3 through DNS records, 1 through website configuration files 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 rexspecs.com about monthly.


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