# What does E-Sec use?

E-Sec (e-sec.io) shows public evidence of 10 tools, according to runsonwhat (last checked 2026-11-05).

- Industry: Financial Services
- Size: 11–50 employees
- Based in: Düsseldorf, Germany
- LinkedIn: https://www.linkedin.com/company/e-sec-register

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft Azure](https://www.runsonwhat.com/reverse/azure) | Hosting & Cloud | Custom domain |  |
| [IONOS](https://www.runsonwhat.com/reverse/ionos) | Hosting & Cloud | 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 |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Yoast SEO](https://www.runsonwhat.com/reverse/yoast) | Website & CMS | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | 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 |  |
| [CCM19](https://www.runsonwhat.com/reverse/ccm19) | Security & Compliance | Website code |  |

## FAQ

### What tools does E-Sec use?

As of November 2026, runsonwhat has found 10 tools at E-Sec (e-sec.io) in public records. Edge & Hosting: Microsoft Azure and IONOS. Application: jQuery, Vimeo and YouTube. Go-to-market: Yoast SEO. Company Ops: Microsoft 365, SendGrid and Atlassian. Last checked November 5, 2026.

### What cloud does E-Sec run on?

E-Sec uses Microsoft Azure for hosting and cloud infrastructure, alongside IONOS, according to runsonwhat (November 2026). runsonwhat found Microsoft Azure through a subdomain that points at Microsoft Azure. Microsoft Azure is used by 50,701 companies runsonwhat tracks.

### What email provider does E-Sec use?

E-Sec uses Microsoft 365 for email and office software, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365. Microsoft 365 is used by 734,250 companies runsonwhat tracks.

### What is E-Sec's website built with?

E-Sec uses Yoast SEO for its website, according to runsonwhat (November 2026). runsonwhat found Yoast SEO through Yoast SEO code on e-sec.io. Yoast SEO is used by 313,103 companies runsonwhat tracks.

### Does E-Sec use jQuery?

Yes. runsonwhat found jQuery at E-Sec through jQuery code on e-sec.io. jQuery is a Frontend tool used by 927,228 companies runsonwhat tracks.

### Which companies have a tech stack similar to E-Sec's?

The companies with the stacks most like E-Sec's are Echopark Produktionsgesellschaft mbH, Thomas Treude, AOE Group and SCHÜRER IT, according to runsonwhat (November 2026). Each shares 2 to 5 tools with E-Sec, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what E-Sec uses?

runsonwhat reads public records only. Of the 10 tools at E-Sec, 5 were found through code on e-sec.io, 3 through email records, 1 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 e-sec.io about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/e-sec.io (updated November 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.