# What does Zstack International use?

Zstack International (zstack.io) shows public evidence of 8 tools, according to runsonwhat (last checked 2026-10-06).

- Industry: Software
- Size: 201–1,000 employees
- Based in: Aberdeen, Hong Kong SAR China
- Founded: 2015
- LinkedIn: https://www.linkedin.com/company/zstack-international

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Alibaba Cloud](https://www.runsonwhat.com/reverse/alibaba-cloud) | Hosting & Cloud | Custom domain, Email records |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | Website code |  |
| [Vimeo](https://www.runsonwhat.com/reverse/vimeo) | Media & UI | Website code |  |
| [YouTube](https://www.runsonwhat.com/reverse/youtube) | Media & UI | Website code |  |
| [Vue.js](https://www.runsonwhat.com/reverse/vue) | Frontend | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Zendesk](https://www.runsonwhat.com/reverse/zendesk) | Support & Docs | Email records, Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records |  |

## FAQ

### What tools does Zstack International use?

As of October 2026, runsonwhat has found 8 tools at Zstack International (zstack.io) in public records. Edge & Hosting: Alibaba Cloud. Application: jQuery, Vimeo and YouTube. Go-to-market: Zendesk. Company Ops: Microsoft 365. Last checked October 6, 2026.

### What cloud does Zstack International run on?

Zstack International uses Alibaba Cloud for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Alibaba Cloud through a subdomain that points at Alibaba Cloud and email records. Alibaba Cloud is used by 6,761 companies runsonwhat tracks.

### What email provider does Zstack International use?

Zstack International 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 694,664 companies runsonwhat tracks.

### What does Zstack International use for customer support?

Zstack International uses Zendesk for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Zendesk through email records that authorize Zendesk and code on zstack.io. Zendesk is used by 40,294 companies runsonwhat tracks.

### Does Zstack International use jQuery?

Yes. runsonwhat found jQuery at Zstack International through jQuery code on zstack.io. jQuery is a Frontend tool used by 886,216 companies runsonwhat tracks.

### How does runsonwhat know what Zstack International uses?

runsonwhat reads public records only. Of the 8 tools at Zstack International, 4 were found through code on zstack.io, 2 through DNS records, 1 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 zstack.io about monthly.


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