# What does Extend use?

Extend (extend.app) shows public evidence of 15 tools, according to runsonwhat (last checked 2026-10-07).

- Based in: New York, United States
- Founded: 2023
- LinkedIn: https://www.linkedin.com/company/extend-app

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Cloud](https://www.runsonwhat.com/reverse/gcp) | Hosting & Cloud | DNS records |  |
| [Vercel](https://www.runsonwhat.com/reverse/vercel) | Hosting & Cloud | Website code |  |
| [Render](https://www.runsonwhat.com/reverse/render) | Hosting & Cloud | Custom domain |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Next.js](https://www.runsonwhat.com/reverse/nextjs) | Frontend | Website code |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code |  |
| [web-vitals](https://www.runsonwhat.com/reverse/web-vitals) | Monitoring | Website code |  |
| [PostHog](https://www.runsonwhat.com/reverse/posthog) | Analytics | Website code |  |
| [Vercel Analytics](https://www.runsonwhat.com/reverse/vercel-analytics) | Analytics | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [HubSpot](https://www.runsonwhat.com/reverse/hubspot) | Sales & CRM | Website code |  |
| [Squarespace](https://www.runsonwhat.com/reverse/squarespace) | Website & CMS | Custom domain, DNS records |  |
| [RB2B](https://www.runsonwhat.com/reverse/rb2b) | Sales & CRM | Website code |  |
| [Snitcher](https://www.runsonwhat.com/reverse/snitcher) | Sales & CRM | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records |  |

## FAQ

### What tools does Extend use?

As of October 2026, runsonwhat has found 15 tools at Extend (extend.app) in public records. Edge & Hosting: Google Cloud, Vercel and Render. Application: Next.js. Data & Observability: Google Analytics, web-vitals and PostHog. Go-to-market: HubSpot, Squarespace and RB2B. Company Ops: Google Workspace. Last checked October 7, 2026.

### What cloud does Extend run on?

Extend uses Google Cloud for hosting and cloud infrastructure, alongside Vercel and Render, according to runsonwhat (October 2026). runsonwhat found Google Cloud through DNS records that point at Google Cloud. Google Cloud is used by 74,702 companies runsonwhat tracks.

### What CRM does Extend use?

Extend uses HubSpot for its CRM, alongside RB2B and Snitcher, according to runsonwhat (October 2026). runsonwhat found HubSpot through HubSpot code on extend.app. HubSpot is used by 91,239 companies runsonwhat tracks.

### What email provider does Extend use?

Extend uses Google Workspace for email and office software, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 394,800 companies runsonwhat tracks.

### What analytics tools does Extend use?

Extend uses Google Analytics for analytics, alongside PostHog and Vercel Analytics, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on extend.app. Google Analytics is used by 844,819 companies runsonwhat tracks.

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

Extend uses Squarespace for its website, according to runsonwhat (October 2026). runsonwhat found Squarespace through a subdomain that points at Squarespace and DNS records. Squarespace is used by 33,139 companies runsonwhat tracks.

### Does Extend use Next.js?

Yes. runsonwhat found Next.js at Extend through Next.js code on extend.app. Next.js is a Frontend tool used by 63,636 companies runsonwhat tracks.

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

The companies with the stacks most like Extend's are Spyrosoft, BlueLabel, LedgerUp and Morphik, according to runsonwhat (October 2026). Each shares 4 to 11 tools with Extend, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Extend uses?

runsonwhat reads public records only. Of the 15 tools at Extend, 9 were found through code on extend.app, 2 through DNS records, 2 through subdomains that point at the vendor, 1 through email records and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and extend.app about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/extend.app (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.