# What does 클래시스 use?

클래시스 (classys.com) shows public evidence of 14 tools, according to runsonwhat (last checked 2026-10-08).

- Industry: Medical Devices
- Size: 201–1,000 employees
- Based in: Seoul, South Korea
- LinkedIn: https://www.linkedin.com/company/classys

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Amazon Web Services](https://www.runsonwhat.com/reverse/aws) | Hosting & Cloud | Custom domain, Website code |  |
| [Amazon Route 53](https://www.runsonwhat.com/reverse/route53) | DNS | DNS records |  |
| [Vercel](https://www.runsonwhat.com/reverse/vercel) | Hosting & Cloud | Custom domain |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | Website code |  |
| [Google Fonts](https://www.runsonwhat.com/reverse/google-fonts) | Media & UI | Website code |  |
| [GSAP](https://www.runsonwhat.com/reverse/gsap) | Media & UI | Website code |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [WordPress](https://www.runsonwhat.com/reverse/wordpress) | Website & CMS | Website code |  |
| [Elementor](https://www.runsonwhat.com/reverse/elementor) | Website & CMS | Website code |  |
| [All in One SEO](https://www.runsonwhat.com/reverse/aioseo) | Website & CMS | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | Email records, DNS verification records, Website code |  |
| [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records |  |
| [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records |  |

## FAQ

### What tools does 클래시스 use?

As of October 2026, runsonwhat has found 14 tools at 클래시스 (classys.com) in public records. Edge & Hosting: Amazon Web Services, Amazon Route 53 and Vercel. Application: jQuery, Google Fonts and GSAP. Data & Observability: Google Analytics. Go-to-market: WordPress, Elementor and All in One SEO. Company Ops: Microsoft 365, Apple Business and Atlassian. Last checked October 8, 2026.

### What cloud does 클래시스 run on?

클래시스 uses Amazon Web Services for hosting and cloud infrastructure, alongside Vercel, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through a subdomain that points at Amazon Web Services and code on classys.com. Amazon Web Services is used by 144,248 companies runsonwhat tracks.

### What email provider does 클래시스 use?

클래시스 uses Microsoft 365 for email and office software, alongside Apple Business, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and a DNS verification record. Microsoft 365 is used by 694,670 companies runsonwhat tracks.

### What analytics tools does 클래시스 use?

클래시스 uses Google Analytics for analytics, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on classys.com. Google Analytics is used by 838,230 companies runsonwhat tracks.

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

클래시스 uses WordPress for its website, alongside Elementor and All in One SEO, according to runsonwhat (October 2026). runsonwhat found WordPress through WordPress code on classys.com. WordPress is used by 574,382 companies runsonwhat tracks.

### Does 클래시스 use jQuery?

Yes. runsonwhat found jQuery at 클래시스 through jQuery code on classys.com. jQuery is a Frontend tool used by 887,265 companies runsonwhat tracks.

### How does runsonwhat know what 클래시스 uses?

runsonwhat reads public records only. Of the 14 tools at 클래시스, 7 were found through code on classys.com, 4 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 classys.com about monthly.


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