# What does Checkfirst Limited use? Checkfirst Limited (checkfirst.ai) shows public evidence of 23 tools, according to runsonwhat (last checked 2026-11-06). - Industry: Software - Size: 11–50 employees - Based in: London, United Kingdom - Founded: 2021 - LinkedIn: https://www.linkedin.com/company/80134846 ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS records, Website code | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | Website code | | | [Google Fonts](https://www.runsonwhat.com/reverse/google-fonts) | Media & UI | Website code | | | [Vimeo](https://www.runsonwhat.com/reverse/vimeo) | Media & UI | Website code | | | [YouTube](https://www.runsonwhat.com/reverse/youtube) | Media & UI | Website code | | | [Wistia](https://www.runsonwhat.com/reverse/wistia) | Media & UI | Website code | | | [Embedly](https://www.runsonwhat.com/reverse/embedly) | Media & UI | Website code | | ## 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 | | | [Microsoft Clarity](https://www.runsonwhat.com/reverse/clarity) | Analytics | Website code | | | [Better Stack](https://www.runsonwhat.com/reverse/betterstack) | Monitoring | Custom domain | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code | | | [Zoho](https://www.runsonwhat.com/reverse/zoho) | Sales & CRM | DNS verification records, Website code | | | [Webflow](https://www.runsonwhat.com/reverse/webflow) | Website & CMS | Website code | | | [ZoomInfo](https://www.runsonwhat.com/reverse/zoominfo) | Sales & CRM | Website code | | | [Weglot](https://www.runsonwhat.com/reverse/weglot) | Website & CMS | Website code | | | [Storylane](https://www.runsonwhat.com/reverse/storylane) | Marketing | Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records, Email records | | | [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records, Website code | | | [Cloudflare Turnstile](https://www.runsonwhat.com/reverse/turnstile) | Security & Compliance | Website code | | | [SafeBase](https://www.runsonwhat.com/reverse/safebase) | Security & Compliance | Custom domain | | ## FAQ ### What tools does Checkfirst use? As of November 2026, runsonwhat has found 23 tools at Checkfirst (checkfirst.ai) in public records. Edge & Hosting: Cloudflare. Application: jQuery, Google Fonts and Vimeo. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: Google Ads, Zoho and Webflow. Company Ops: Microsoft 365, Google Workspace and Cloudflare Turnstile. Last checked November 6, 2026. ### What CRM does Checkfirst use? Checkfirst uses Zoho for its CRM, alongside ZoomInfo, according to runsonwhat (November 2026). runsonwhat found Zoho through a DNS verification record for Zoho and code on checkfirst.ai. Zoho is used by 65,096 companies runsonwhat tracks. ### What email provider does Checkfirst use? Checkfirst 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 and email records. Microsoft 365 is used by 732,608 companies runsonwhat tracks. ### What analytics tools does Checkfirst use? Checkfirst uses Google Analytics for analytics, alongside Google Tag Manager and Microsoft Clarity, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on checkfirst.ai. Google Analytics is used by 903,808 companies runsonwhat tracks. ### What is Checkfirst's website built with? Checkfirst uses Webflow for its website, alongside Weglot, according to runsonwhat (November 2026). runsonwhat found Webflow through Webflow code on checkfirst.ai. Webflow is used by 36,190 companies runsonwhat tracks. ### What marketing software does Checkfirst use? Checkfirst uses Storylane for marketing, according to runsonwhat (November 2026). runsonwhat found Storylane through Storylane code on checkfirst.ai. Storylane is used by 775 companies runsonwhat tracks. ### Does Checkfirst use jQuery? Yes. runsonwhat found jQuery at Checkfirst through jQuery code on checkfirst.ai. jQuery is a Frontend tool used by 927,185 companies runsonwhat tracks. ### Which companies have a tech stack similar to Checkfirst's? The companies with the stacks most like Checkfirst's are Hive, Voyado, HealthEdge and SUSE, according to runsonwhat (November 2026). Each shares 10 to 15 tools with Checkfirst, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Checkfirst uses? runsonwhat reads public records only. Of the 23 tools at Checkfirst, 15 were found through code on checkfirst.ai, 4 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 checkfirst.ai about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/checkfirst.ai (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.