# What does Stacklet use?

Stacklet (stacklet.io) shows public evidence of 21 tools, according to runsonwhat (last checked 2026-10-20).

- Industry: Software
- Size: 11–50 employees
- Based in: Arlington, United States
- LinkedIn: https://www.linkedin.com/company/stacklet

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | Website code |  |
| [Amazon Route 53](https://www.runsonwhat.com/reverse/route53) | DNS | DNS records |  |
| [WP Engine](https://www.runsonwhat.com/reverse/wpengine) | Hosting & Cloud | Custom domain, Website code |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | Website code |  |
| [GSAP](https://www.runsonwhat.com/reverse/gsap) | Media & UI | Website code |  |
| [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records |  |
| [OpenAI](https://www.runsonwhat.com/reverse/openai) | AI | DNS verification records |  |
| [Rive](https://www.runsonwhat.com/reverse/rive) | Media & UI | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [WordPress](https://www.runsonwhat.com/reverse/wordpress) | Website & CMS | Website code |  |
| [Yoast SEO](https://www.runsonwhat.com/reverse/yoast) | Website & CMS | Website code |  |
| [HubSpot](https://www.runsonwhat.com/reverse/hubspot) | Sales & CRM | Email records, Website code |  |
| [Vector](https://www.runsonwhat.com/reverse/vector) | Sales & CRM | Website code |  |
| [Common Room](https://www.runsonwhat.com/reverse/commonroom) | Sales & CRM | Website code |  |
| [Reo.dev](https://www.runsonwhat.com/reverse/reo) | Sales & CRM | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records |  |
| [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records |  |
| [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records |  |
| [Mailgun](https://www.runsonwhat.com/reverse/mailgun) | Email Delivery | DNS verification records |  |
| [Cursor](https://www.runsonwhat.com/reverse/cursor) | Dev Tools | DNS verification records |  |
| [BugHerd](https://www.runsonwhat.com/reverse/bugherd) | Dev Tools | Website code |  |

## FAQ

### What tools does Stacklet use?

As of October 2026, runsonwhat has found 21 tools at Stacklet (stacklet.io) in public records. Edge & Hosting: Cloudflare, Amazon Route 53 and WP Engine. Application: jQuery, GSAP and Anthropic. Go-to-market: WordPress, Yoast SEO and HubSpot. Company Ops: Microsoft 365, Google Workspace and Apple Business. Last checked October 20, 2026.

### What cloud does Stacklet run on?

Stacklet uses WP Engine for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found WP Engine through a subdomain that points at WP Engine and code on stacklet.io. WP Engine is used by 50,803 companies runsonwhat tracks.

### What CRM does Stacklet use?

Stacklet uses HubSpot for its CRM, alongside Vector, Common Room and Reo.dev, according to runsonwhat (October 2026). runsonwhat found HubSpot through email records that authorize HubSpot and code on stacklet.io. HubSpot is used by 92,687 companies runsonwhat tracks.

### What email provider does Stacklet use?

Stacklet uses Microsoft 365 for email and office software, alongside Google Workspace and Apple Business, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 705,075 companies runsonwhat tracks.

### What is Stacklet's website built with?

Stacklet uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (October 2026). runsonwhat found WordPress through WordPress code on stacklet.io. WordPress is used by 586,323 companies runsonwhat tracks.

### Does Stacklet use jQuery?

Yes. runsonwhat found jQuery at Stacklet through jQuery code on stacklet.io. jQuery is a Frontend tool used by 902,506 companies runsonwhat tracks.

### Does Stacklet use AI tools?

Yes. runsonwhat has found Anthropic and OpenAI at Stacklet; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Stacklet may use more AI tools than these.

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

The companies with the stacks most like Stacklet's are Coder, Gravitee, Zendesk and Zendesk, according to runsonwhat (October 2026). Each shares 5 to 12 tools with Stacklet, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Stacklet uses?

runsonwhat reads public records only. Of the 21 tools at Stacklet, 10 were found through code on stacklet.io, 8 through DNS records, 2 through email 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 stacklet.io about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/stacklet.io (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.