# What does MonoLisa use?

MonoLisa (monolisa.dev) shows public evidence of 15 tools, according to runsonwhat (last checked 2026-10-23).

## Edge & Hosting

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

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code |  |
| [Next.js](https://www.runsonwhat.com/reverse/nextjs) | Frontend | Website code |  |
| [Paddle](https://www.runsonwhat.com/reverse/paddle) | Payments & Billing | Website code |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Sentry](https://www.runsonwhat.com/reverse/sentry) | Monitoring | Website code |  |
| [web-vitals](https://www.runsonwhat.com/reverse/web-vitals) | Monitoring | Website code |  |
| [New Relic](https://www.runsonwhat.com/reverse/newrelic) | Monitoring | Website code |  |
| [PostHog](https://www.runsonwhat.com/reverse/posthog) | Analytics | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Let's Encrypt](https://www.runsonwhat.com/reverse/letsencrypt) | Security & Compliance | DNS records |  |
| [Sectigo](https://www.runsonwhat.com/reverse/sectigo) | Security & Compliance | DNS records |  |
| [Google Trust Services](https://www.runsonwhat.com/reverse/google-trust) | Security & Compliance | DNS records |  |
| [Fastmail](https://www.runsonwhat.com/reverse/fastmail) | Workspace | Email records |  |

## FAQ

### What tools does MonoLisa use?

As of October 2026, runsonwhat has found 15 tools at MonoLisa (monolisa.dev) in public records. Edge & Hosting: Cloudflare and Vercel. Application: React, Next.js and Paddle. Data & Observability: Sentry, web-vitals and New Relic. Company Ops: Let's Encrypt, Sectigo and Google Trust Services. Last checked October 23, 2026.

### What cloud does MonoLisa run on?

MonoLisa uses Vercel for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Vercel through DNS records that point at Vercel and code on monolisa.dev. Vercel is used by 48,120 companies runsonwhat tracks.

### What email provider does MonoLisa use?

MonoLisa uses Fastmail for email and office software, according to runsonwhat (October 2026). runsonwhat found Fastmail through email records that authorize Fastmail. Fastmail is used by 1,138 companies runsonwhat tracks.

### What payment provider does MonoLisa use?

MonoLisa uses Paddle for payments and billing, according to runsonwhat (October 2026). runsonwhat found Paddle through Paddle code on monolisa.dev. Paddle is used by 457 companies runsonwhat tracks.

### What analytics tools does MonoLisa use?

MonoLisa uses PostHog for analytics, according to runsonwhat (October 2026). runsonwhat found PostHog through PostHog code on monolisa.dev. PostHog is used by 9,992 companies runsonwhat tracks.

### What monitoring tools does MonoLisa use?

MonoLisa uses Sentry for monitoring, alongside web-vitals and New Relic, according to runsonwhat (October 2026). runsonwhat found Sentry through Sentry code on monolisa.dev. Sentry is used by 78,629 companies runsonwhat tracks.

### Does MonoLisa use Cloudflare?

Yes. runsonwhat found Cloudflare at MonoLisa through Cloudflare code on monolisa.dev. Cloudflare is a CDN & Edge tool used by 702,885 companies runsonwhat tracks.

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

The companies with the stacks most like MonoLisa's are ipapi, Snaplark, NovelAI and SiteGPT, according to runsonwhat (October 2026). Each shares 3 to 12 tools with MonoLisa, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what MonoLisa uses?

runsonwhat reads public records only. Of the 15 tools at MonoLisa, 8 were found through code on monolisa.dev, 5 through DNS records, 1 through website configuration files and 1 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and monolisa.dev about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/monolisa.dev (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.