# What does Circlesquare use?

Circlesquare (circle-square.com) shows public evidence of 10 tools, according to runsonwhat (last checked 2026-10-27).

- Industry: Marketing and Advertising
- Size: 51–200 employees
- Based in: London, United Kingdom
- Founded: 2003
- LinkedIn: https://www.linkedin.com/company/circlesquare

## Edge & Hosting

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

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | Website code |  |
| [Lottie](https://www.runsonwhat.com/reverse/lottie) | Media & UI | Website code |  |

## Data & Observability

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

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code |  |
| [Webflow](https://www.runsonwhat.com/reverse/webflow) | Website & CMS | Custom domain, Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | Email records, Website code |  |
| [Box](https://www.runsonwhat.com/reverse/box) | Collaboration | DNS verification records |  |
| [Tailscale](https://www.runsonwhat.com/reverse/tailscale) | Security & Compliance | DNS verification records |  |

## Recent changes at Circlesquare

- 2026-10-19: started using [Box](https://www.runsonwhat.com/reverse/box)

## FAQ

### What tools does Circlesquare use?

As of November 2026, runsonwhat has found 10 tools at Circlesquare (circle-square.com) in public records. Edge & Hosting: Cloudflare. Application: jQuery and Lottie. Data & Observability: Google Analytics and Google Tag Manager. Go-to-market: Google Ads and Webflow. Company Ops: Microsoft 365, Box and Tailscale. Last checked October 27, 2026.

### What email provider does Circlesquare use?

Circlesquare uses Microsoft 365 for email and office software, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and code on circle-square.com. Microsoft 365 is used by 719,209 companies runsonwhat tracks.

### What analytics tools does Circlesquare use?

Circlesquare uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on circle-square.com. Google Analytics is used by 906,548 companies runsonwhat tracks.

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

Circlesquare uses Webflow for its website, according to runsonwhat (November 2026). runsonwhat found Webflow through a subdomain that points at Webflow and code on circle-square.com. Webflow is used by 35,664 companies runsonwhat tracks.

### Does Circlesquare use jQuery?

Yes. runsonwhat found jQuery at Circlesquare through jQuery code on circle-square.com. jQuery is a Frontend tool used by 930,352 companies runsonwhat tracks.

### Has Circlesquare changed tools recently?

Yes. On runsonwhat's rechecks, Circlesquare started using Box (latest on October 19, 2026). A change counts only between two checks of circle-square.com done the same way.

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

The companies with the stacks most like Circlesquare's are Plato Creative Design, Knoodle Advertising, Relay Technologies and Promwad, according to runsonwhat (November 2026). Each shares 7 to 8 tools with Circlesquare, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Circlesquare uses?

runsonwhat reads public records only. Of the 10 tools at Circlesquare, 6 were found through code on circle-square.com, 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 circle-square.com about monthly.


---

Source: runsonwhat, https://www.runsonwhat.com/company/circle-square.com (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.