# What does First Co. use? First Co. (firstco.com) shows public evidence of 24 tools, according to runsonwhat (last checked 2026-11-03). - Industry: Machinery - Size: 201–1,000 employees - Based in: Dallas, United States - Founded: 1966 - LinkedIn: https://www.linkedin.com/company/first-co-hvac ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | Website code | | | [Amazon Web Services](https://www.runsonwhat.com/reverse/aws) | Hosting & Cloud | Website code | | | [WP Engine](https://www.runsonwhat.com/reverse/wpengine) | Hosting & Cloud | Custom domain, Website code | | | [Netlify](https://www.runsonwhat.com/reverse/netlify) | Hosting & Cloud | Custom domain, 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 | | | [Adobe Fonts](https://www.runsonwhat.com/reverse/adobe-fonts) | Media & UI | Website code | | | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | | [Astro](https://www.runsonwhat.com/reverse/astro) | Frontend | Website code | | | [Cloudinary](https://www.runsonwhat.com/reverse/cloudinary) | Media & UI | Website code | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [WordPress](https://www.runsonwhat.com/reverse/wordpress) | Website & CMS | Website code | | | [Yoast SEO](https://www.runsonwhat.com/reverse/yoast) | Website & CMS | Website code | | | [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp) | Marketing | Website code | | | [Brevo](https://www.runsonwhat.com/reverse/brevo) | Marketing | DNS verification records | | | [Calendly](https://www.runsonwhat.com/reverse/calendly) | Sales & CRM | Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | Email records, DNS verification records | | | [reCAPTCHA](https://www.runsonwhat.com/reverse/recaptcha) | Security & Compliance | Website code | | | [Amazon SES](https://www.runsonwhat.com/reverse/ses) | Email Delivery | Email records, Website code | | | [Mailchimp Transactional](https://www.runsonwhat.com/reverse/mandrill) | Email Delivery | Email records | | | [Resend](https://www.runsonwhat.com/reverse/resend) | Email Delivery | Email records | | | [Barracuda](https://www.runsonwhat.com/reverse/barracuda) | Security & Compliance | Email records | | | [SMTP2GO](https://www.runsonwhat.com/reverse/smtp2go) | Email Delivery | Custom domain | | ## Recent changes at First Co. - 2026-11-03: stopped using [YouTube](https://www.runsonwhat.com/reverse/youtube) - 2026-11-03: started using [Cloudinary](https://www.runsonwhat.com/reverse/cloudinary) - 2026-11-03: stopped using [Google Maps](https://www.runsonwhat.com/reverse/google-maps) - 2026-11-03: started using [Astro](https://www.runsonwhat.com/reverse/astro) - 2026-11-03: started using [SMTP2GO](https://www.runsonwhat.com/reverse/smtp2go) - 2026-11-03: stopped using [Vimeo](https://www.runsonwhat.com/reverse/vimeo) - 2026-11-03: started using [Netlify](https://www.runsonwhat.com/reverse/netlify) ## FAQ ### What tools does First use? As of November 2026, runsonwhat has found 24 tools at First (firstco.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and WP Engine. Application: jQuery, Google Fonts and Adobe Fonts. Data & Observability: Google Analytics. Go-to-market: WordPress, Yoast SEO and Mailchimp. Company Ops: Microsoft 365, reCAPTCHA and Amazon SES. Last checked November 3, 2026. ### What cloud does First run on? First uses Amazon Web Services for hosting and cloud infrastructure, alongside WP Engine and Netlify, according to runsonwhat (November 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on firstco.com. Amazon Web Services is used by 147,134 companies runsonwhat tracks. ### What sales tools does First use? The sales tools runsonwhat has found at First are Calendly (November 2026); no CRM shows up in First's public records. runsonwhat found Calendly through Calendly code on firstco.com. Calendly is used by 31,459 companies runsonwhat tracks. ### What email provider does First use? First uses Microsoft 365 for email and office software, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and a DNS verification record. Microsoft 365 is used by 726,317 companies runsonwhat tracks. ### What analytics tools does First use? First uses Google Analytics for analytics, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on firstco.com. Google Analytics is used by 905,746 companies runsonwhat tracks. ### What is First's website built with? First uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (November 2026). runsonwhat found WordPress through WordPress code on firstco.com. WordPress is used by 607,208 companies runsonwhat tracks. ### Does First use jQuery? Yes. runsonwhat found jQuery at First through jQuery code on firstco.com. jQuery is a Frontend tool used by 929,623 companies runsonwhat tracks. ### Does First use AI tools? Yes. runsonwhat has found Anthropic at First; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so First may use more AI tools than these. ### Has First changed tools recently? Yes. On runsonwhat's rechecks, First started using Cloudinary, Astro and SMTP2GO (latest on November 3, 2026) and stopped using YouTube, Google Maps and Vimeo (latest on November 3, 2026). A change counts only between two checks of firstco.com done the same way. ### How does runsonwhat know what First uses? runsonwhat reads public records only. Of the 24 tools at First, 13 were found through code on firstco.com, 5 through email records, 3 through DNS records and 3 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and firstco.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/firstco.com (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.