# What does Centr use? Centr (centr.com) shows public evidence of 44 tools, according to runsonwhat (last checked 2026-10-19). - Industry: Health, Wellness and Fitness - Size: 51–200 employees - Based in: Los Angeles, United States - Founded: 2019 - LinkedIn: https://www.linkedin.com/company/centrapp ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS records, Website code | | | [Vercel](https://www.runsonwhat.com/reverse/vercel) | Hosting & Cloud | DNS verification records, Custom domain | | | [Microsoft Azure](https://www.runsonwhat.com/reverse/azure) | Hosting & Cloud | Custom domain | 2025-12 | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Fonts](https://www.runsonwhat.com/reverse/google-fonts) | Media & UI | Website code | | | [Font Awesome](https://www.runsonwhat.com/reverse/fontawesome) | Media & UI | Website code | | | [GSAP](https://www.runsonwhat.com/reverse/gsap) | Media & UI | Website code | | | [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code | | | [Tailwind CSS](https://www.runsonwhat.com/reverse/tailwind) | Frontend | Website code | | | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | | [PayPal](https://www.runsonwhat.com/reverse/paypal) | Payments & Billing | Website code | | | [Stripe](https://www.runsonwhat.com/reverse/stripe) | Payments & Billing | DNS verification records, Website code | | | [FusionAuth](https://www.runsonwhat.com/reverse/fusionauth) | Auth & Identity | Custom domain, Website config | 2025-07 | ## 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 | | | [Sentry](https://www.runsonwhat.com/reverse/sentry) | Monitoring | Website code | | | [Hotjar](https://www.runsonwhat.com/reverse/hotjar) | Analytics | Website code | | | [Datadog](https://www.runsonwhat.com/reverse/datadog) | Monitoring | Website code | | | [Amplitude](https://www.runsonwhat.com/reverse/amplitude) | Analytics | Website code | | | [Triple Whale](https://www.runsonwhat.com/reverse/triple-whale) | Analytics | Website code | | | [AppsFlyer](https://www.runsonwhat.com/reverse/appsflyer) | Analytics | Website code | | | [Visually](https://www.runsonwhat.com/reverse/visually) | Flags & Experiments | Website code | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code | | | [Meta Pixel](https://www.runsonwhat.com/reverse/meta-pixel) | Ads & Pixels | DNS verification records, Website code | | | [Microsoft Ads](https://www.runsonwhat.com/reverse/bing-ads) | Ads & Pixels | Website code | | | [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code | | | [Shopify](https://www.runsonwhat.com/reverse/shopify) | Website & CMS | Website code | | | [TikTok Pixel](https://www.runsonwhat.com/reverse/tiktok-pixel) | Ads & Pixels | Website code | | | [Klaviyo](https://www.runsonwhat.com/reverse/klaviyo) | Marketing | DNS verification records, Website code | | | [Awin](https://www.runsonwhat.com/reverse/awin) | Ads & Pixels | Website code | | | [Yotpo](https://www.runsonwhat.com/reverse/yotpo) | Marketing | Website code | | | [MNTN](https://www.runsonwhat.com/reverse/mntn) | Ads & Pixels | Website code | | | [Gorgias](https://www.runsonwhat.com/reverse/gorgias) | Support & Docs | Custom domain, Website code | 2025-08 | | [Gorgias Convert](https://www.runsonwhat.com/reverse/gorgias-convert) | Marketing | Website code | | | [Braze](https://www.runsonwhat.com/reverse/braze) | Marketing | Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records, Email records, Website code | | | [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records | | | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | | [Cookiebot](https://www.runsonwhat.com/reverse/cookiebot) | Security & Compliance | Website code | | | [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records | | | [Postmark](https://www.runsonwhat.com/reverse/postmark) | Email Delivery | Email records | | | [accessiBe](https://www.runsonwhat.com/reverse/accessibe) | Security & Compliance | Website code | | ## FAQ ### What tools does Centr use? As of October 2026, runsonwhat has found 44 tools at Centr (centr.com) in public records. Edge & Hosting: Cloudflare, Vercel and Microsoft Azure. Application: Google Fonts, Font Awesome and GSAP. Data & Observability: Google Analytics, Google Tag Manager and Sentry. Go-to-market: Google Ads, Meta Pixel and Microsoft Ads. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked October 19, 2026. ### What cloud does Centr run on? Centr uses Vercel for hosting and cloud infrastructure, alongside Microsoft Azure, according to runsonwhat (October 2026). runsonwhat found Vercel through a DNS verification record for Vercel and a subdomain. Vercel is used by 47,831 companies runsonwhat tracks. ### What email provider does Centr use? Centr uses Microsoft 365 for email and office software, alongside Google Workspace and Apple Business, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365 and email records. Microsoft 365 is used by 709,013 companies runsonwhat tracks. ### What does Centr use for customer support? Centr uses Gorgias for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Gorgias through a subdomain that points at Gorgias and code on centr.com, and Centr has used it since at least August 2025. Gorgias is used by 3,895 companies runsonwhat tracks. ### What payment provider does Centr use? Centr uses PayPal for payments and billing, alongside Stripe, according to runsonwhat (October 2026). runsonwhat found PayPal through PayPal code on centr.com. PayPal is used by 34,206 companies runsonwhat tracks. ### What analytics tools does Centr use? Centr uses Google Analytics for analytics, alongside Google Tag Manager, Hotjar and Amplitude, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on centr.com. Google Analytics is used by 872,775 companies runsonwhat tracks. ### How long has Centr used FusionAuth? Centr has used FusionAuth since at least July 2025, going by the first public certificate of the centr.com subdomain that points at FusionAuth. Other long-running tools at Centr include Gorgias (since August 2025) and Microsoft Azure (since December 2025). ### Does Centr use Google Fonts? Yes. runsonwhat found Google Fonts at Centr through Google Fonts code on centr.com. Google Fonts is a Media & UI tool used by 804,281 companies runsonwhat tracks. ### Does Centr use AI tools? Yes. runsonwhat has found Anthropic at Centr; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Centr may use more AI tools than these. ### Which companies have a tech stack similar to Centr's? The companies with the stacks most like Centr's are Shine, Nuts.com, Inveniam Capital Partners and FifthRow, according to runsonwhat (October 2026). Each shares 9 to 23 tools with Centr, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Centr uses? runsonwhat reads public records only. Of the 44 tools at Centr, 27 were found through code on centr.com, 10 through DNS records, 3 through email records, 3 through subdomains that point at the vendor and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and centr.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/centr.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.