# What does CrowdSec use? CrowdSec (crowdsec.net) shows public evidence of 28 tools, according to runsonwhat (last checked 2026-10-31). - Industry: Computer & Network Security - Size: 11–50 employees - Based in: Paris, France - Founded: 2020 - LinkedIn: https://www.linkedin.com/company/crowdsec ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | Custom domain, Website code | 2021-09 | | [Amazon CloudFront](https://www.runsonwhat.com/reverse/cloudfront) | CDN & Edge | Custom domain | 2020-05 | | [Vercel](https://www.runsonwhat.com/reverse/vercel) | Hosting & Cloud | Custom domain, DNS verification records, DNS records, Website code | 2021-04 | | [Gandi](https://www.runsonwhat.com/reverse/gandi) | DNS | DNS records | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code | | | [Tailwind CSS](https://www.runsonwhat.com/reverse/tailwind) | Frontend | Website code | | | [Next.js](https://www.runsonwhat.com/reverse/nextjs) | Frontend | Website code | | | [Stripe](https://www.runsonwhat.com/reverse/stripe) | Payments & Billing | DNS verification records, Website code | | | [MongoDB Atlas](https://www.runsonwhat.com/reverse/mongodb) | Backend & Database | DNS verification records | | ## 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 | | | [Hotjar](https://www.runsonwhat.com/reverse/hotjar) | Analytics | Website code | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [WordPress](https://www.runsonwhat.com/reverse/wordpress) | Website & CMS | Website code | | | [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code | | | [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code | | | [HubSpot](https://www.runsonwhat.com/reverse/hubspot) | Sales & CRM | Custom domain, Website code | 2021-09 | | [Zendesk](https://www.runsonwhat.com/reverse/zendesk) | Support & Docs | Custom domain | 2023-04 | | [Webflow](https://www.runsonwhat.com/reverse/webflow) | Website & CMS | DNS verification records | | | [HubSpot CMS](https://www.runsonwhat.com/reverse/hubspot-cms) | Website & CMS | Custom domain | 2021-09 | | [X Ads](https://www.runsonwhat.com/reverse/x-ads) | Ads & Pixels | Website code | | | [Reddit Ads](https://www.runsonwhat.com/reverse/reddit-ads) | Ads & Pixels | Website code | | | [Discord](https://www.runsonwhat.com/reverse/discord) | Support & Docs | Website code | | | [Spotify Ads](https://www.runsonwhat.com/reverse/spotify-ads) | Ads & Pixels | Website code | | | [G2](https://www.runsonwhat.com/reverse/g2) | Marketing | Website code | | ## 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 | | | [Axeptio](https://www.runsonwhat.com/reverse/axeptio) | Security & Compliance | Website code | | ## FAQ ### What tools does CrowdSec use? As of November 2026, runsonwhat has found 28 tools at CrowdSec (crowdsec.net) in public records. Edge & Hosting: Cloudflare, Amazon CloudFront and Vercel. Application: React, Tailwind CSS and Next.js. Data & Observability: Google Analytics, Google Tag Manager and Hotjar. Go-to-market: WordPress, Google Ads and LinkedIn Insight Tag. Company Ops: Microsoft 365, Google Workspace and Axeptio. Last checked October 31, 2026. ### What cloud does CrowdSec run on? CrowdSec uses Vercel for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found Vercel through a subdomain that points at Vercel and a DNS verification record, and CrowdSec has used it since at least April 2021. Vercel is used by 50,808 companies runsonwhat tracks. ### What CRM does CrowdSec use? CrowdSec uses HubSpot for its CRM, according to runsonwhat (November 2026). runsonwhat found HubSpot through a subdomain that points at HubSpot and code on crowdsec.net, and CrowdSec has used it since at least September 2021. HubSpot is used by 96,097 companies runsonwhat tracks. ### What email provider does CrowdSec use? CrowdSec uses Microsoft 365 for email and office software, alongside Google Workspace, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 718,450 companies runsonwhat tracks. ### What does CrowdSec use for customer support? CrowdSec uses Zendesk for customer support and documentation, alongside Discord, according to runsonwhat (November 2026). runsonwhat found Zendesk through a subdomain that points at Zendesk, and CrowdSec has used it since at least April 2023. Zendesk is used by 42,774 companies runsonwhat tracks. ### What payment provider does CrowdSec use? CrowdSec uses Stripe for payments and billing, according to runsonwhat (November 2026). runsonwhat found Stripe through a DNS verification record for Stripe and code on crowdsec.net. Stripe is used by 30,909 companies runsonwhat tracks. ### How long has CrowdSec used Amazon CloudFront? CrowdSec has used Amazon CloudFront since at least May 2020, going by the first public certificate of the crowdsec.net subdomain that points at Amazon CloudFront. Other long-running tools at CrowdSec include Vercel (since April 2021), Cloudflare (since September 2021) and HubSpot (since September 2021). ### Does CrowdSec use Cloudflare? Yes. runsonwhat found Cloudflare at CrowdSec through a subdomain that points at Cloudflare and code on crowdsec.net, in use since at least September 2021. Cloudflare is a CDN & Edge tool used by 723,291 companies runsonwhat tracks. ### Which companies have a tech stack similar to CrowdSec's? The companies with the stacks most like CrowdSec's are Redcare Pharmacy, Docsumo, D-EDGE and Finanzen.net, according to runsonwhat (November 2026). Each shares 4 to 14 tools with CrowdSec, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what CrowdSec uses? runsonwhat reads public records only. Of the 28 tools at CrowdSec, 15 were found through code on crowdsec.net, 6 through DNS records, 6 through subdomains that point at the vendor and 1 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and crowdsec.net about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/crowdsec.net (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.