# What does Quantstamp use?

Quantstamp (quantstamp.com) shows public evidence of 22 tools, according to runsonwhat (last checked 2026-10-09).

- Industry: Security
- Size: 51–200 employees
- Based in: San Francisco, United States
- LinkedIn: https://www.linkedin.com/company/quantstamp

## Edge & Hosting

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

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Fonts](https://www.runsonwhat.com/reverse/google-fonts) | Media & UI | Website code |  |
| [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code |  |
| [Next.js](https://www.runsonwhat.com/reverse/nextjs) | Frontend | Website code |  |
| [Three.js](https://www.runsonwhat.com/reverse/threejs) | Media & UI | Website code |  |

## Data & Observability

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

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp) | Marketing | Email records |  |
| [HubSpot](https://www.runsonwhat.com/reverse/hubspot) | Sales & CRM | Email records |  |
| [Ahrefs](https://www.runsonwhat.com/reverse/ahrefs) | Marketing | DNS verification records |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records |  |
| [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records, Website code |  |
| [reCAPTCHA](https://www.runsonwhat.com/reverse/recaptcha) | Security & Compliance | Website code |  |
| [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records, Website code |  |
| [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records |  |
| [Amazon SES](https://www.runsonwhat.com/reverse/ses) | Email Delivery | DNS verification records |  |
| [Let's Encrypt](https://www.runsonwhat.com/reverse/letsencrypt) | Security & Compliance | DNS records |  |
| [Mailgun](https://www.runsonwhat.com/reverse/mailgun) | Email Delivery | Email records, Website code |  |
| [Sectigo](https://www.runsonwhat.com/reverse/sectigo) | Security & Compliance | DNS records |  |
| [DigiCert](https://www.runsonwhat.com/reverse/digicert) | Security & Compliance | DNS records |  |
| [Google Trust Services](https://www.runsonwhat.com/reverse/google-trust) | Security & Compliance | DNS records |  |

## FAQ

### What tools does Quantstamp use?

As of October 2026, runsonwhat has found 22 tools at Quantstamp (quantstamp.com) in public records. Edge & Hosting: Cloudflare. Application: Google Fonts, React and Next.js. Data & Observability: Naver Analytics. Go-to-market: Mailchimp, HubSpot and Ahrefs. Company Ops: Microsoft 365, Google Workspace and reCAPTCHA. Last checked October 9, 2026.

### What CRM does Quantstamp use?

Quantstamp uses HubSpot for its CRM, according to runsonwhat (October 2026). runsonwhat found HubSpot through email records that authorize HubSpot. HubSpot is used by 90,395 companies runsonwhat tracks.

### What email provider does Quantstamp use?

Quantstamp uses Microsoft 365 for email and office software, alongside Google Workspace, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 694,621 companies runsonwhat tracks.

### What analytics tools does Quantstamp use?

Quantstamp uses Naver Analytics for analytics, according to runsonwhat (October 2026). runsonwhat found Naver Analytics through Naver Analytics code on quantstamp.com. Naver Analytics is used by 2,705 companies runsonwhat tracks.

### What marketing software does Quantstamp use?

Quantstamp uses Mailchimp for marketing, alongside Ahrefs, according to runsonwhat (October 2026). runsonwhat found Mailchimp through email records that authorize Mailchimp. Mailchimp is used by 111,856 companies runsonwhat tracks.

### Does Quantstamp use Google Fonts?

Yes. runsonwhat found Google Fonts at Quantstamp through Google Fonts code on quantstamp.com. Google Fonts is a Media & UI tool used by 774,672 companies runsonwhat tracks.

### How does runsonwhat know what Quantstamp uses?

runsonwhat reads public records only. Of the 22 tools at Quantstamp, 10 were found through DNS records, 6 through code on quantstamp.com, 5 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 quantstamp.com about monthly.


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