# What does ESRT use? ESRT (esrtreit.com) shows public evidence of 32 tools, according to runsonwhat (last checked 2026-11-08). - Industry: Real Estate - Size: 201–1,000 employees - Based in: New York, United States - Founded: 2013 - LinkedIn: https://www.linkedin.com/company/empire-state-realty-trust ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Amazon Web Services](https://www.runsonwhat.com/reverse/aws) | Hosting & Cloud | Website code | | | [Fastly](https://www.runsonwhat.com/reverse/fastly) | CDN & Edge | Website code | | | [Pantheon](https://www.runsonwhat.com/reverse/pantheon) | Hosting & Cloud | Website code | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | 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 | | | [OpenAI](https://www.runsonwhat.com/reverse/openai) | AI | DNS verification records | | | [Bynder](https://www.runsonwhat.com/reverse/bynder) | Media & UI | Certificate records | 2022-11 | ## 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 | | | [New Relic](https://www.runsonwhat.com/reverse/newrelic) | Monitoring | 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 | | | [Meta Pixel](https://www.runsonwhat.com/reverse/meta-pixel) | Ads & Pixels | Website code | | | [Yoast SEO](https://www.runsonwhat.com/reverse/yoast) | Website & CMS | Website code | | | [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code | | | [Microsoft Ads](https://www.runsonwhat.com/reverse/bing-ads) | Ads & Pixels | Website code | | | [Pardot](https://www.runsonwhat.com/reverse/pardot) | Marketing | Website code | | | [The Trade Desk](https://www.runsonwhat.com/reverse/tradedesk) | Ads & Pixels | Website code | | | [LiveRamp](https://www.runsonwhat.com/reverse/liveramp) | Ads & Pixels | Website code | | | [Adobe Audience Manager](https://www.runsonwhat.com/reverse/adobe-audience-manager) | Ads & Pixels | Website code | | | [Bombora](https://www.runsonwhat.com/reverse/bombora) | Sales & CRM | Website code | | | [LiveIntent](https://www.runsonwhat.com/reverse/liveintent) | Ads & Pixels | Website code | | | [RB2B](https://www.runsonwhat.com/reverse/rb2b) | Sales & CRM | Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records | | | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | | [Proofpoint](https://www.runsonwhat.com/reverse/proofpoint) | Security & Compliance | Email records | | | [OneTrust](https://www.runsonwhat.com/reverse/onetrust) | Security & Compliance | Website code | | | [Adobe](https://www.runsonwhat.com/reverse/adobe) | Collaboration | DNS verification records | | | [Canva](https://www.runsonwhat.com/reverse/canva) | Collaboration | DNS verification records | | ## Recent changes at ESRT - 2026-11-08: started using again [Apple Business](https://www.runsonwhat.com/reverse/apple) - 2026-11-08: started using again [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) - 2026-11-08: started using again [Anthropic](https://www.runsonwhat.com/reverse/anthropic) - 2026-11-08: started using again [OpenAI](https://www.runsonwhat.com/reverse/openai) - 2026-11-08: started using again [Canva](https://www.runsonwhat.com/reverse/canva) - 2026-11-08: started using again [Adobe](https://www.runsonwhat.com/reverse/adobe) - 2026-10-31: stopped using [OpenAI](https://www.runsonwhat.com/reverse/openai) - 2026-10-31: started using again [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) - 2026-10-31: stopped using [Adobe](https://www.runsonwhat.com/reverse/adobe) - 2026-10-31: stopped using [Anthropic](https://www.runsonwhat.com/reverse/anthropic) - 2026-10-31: stopped using [Apple Business](https://www.runsonwhat.com/reverse/apple) - 2026-10-31: stopped using [Canva](https://www.runsonwhat.com/reverse/canva) ## FAQ ### What tools does ESRT use? As of November 2026, runsonwhat has found 32 tools at ESRT (esrtreit.com) in public records. Edge & Hosting: Amazon Web Services, Fastly and Pantheon. Application: jQuery, Adobe Fonts and Anthropic. Data & Observability: Google Analytics, Google Tag Manager and New Relic. Go-to-market: WordPress, Google Ads and Meta Pixel. Company Ops: Microsoft 365, SendGrid and Apple Business. Last checked November 8, 2026. ### What cloud does ESRT run on? ESRT uses Amazon Web Services for hosting and cloud infrastructure, alongside Pantheon, according to runsonwhat (November 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on esrtreit.com. Amazon Web Services is used by 147,633 companies runsonwhat tracks. ### What sales tools does ESRT use? The sales tools runsonwhat has found at ESRT are Bombora and RB2B (November 2026); no CRM shows up in ESRT's public records. runsonwhat found Bombora through Bombora code on esrtreit.com. ### What email provider does ESRT use? ESRT uses Microsoft 365 for email and office software, alongside Apple Business, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 736,661 companies runsonwhat tracks. ### What analytics tools does ESRT use? ESRT uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on esrtreit.com. Google Analytics is used by 904,027 companies runsonwhat tracks. ### What is ESRT's website built with? ESRT uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (November 2026). runsonwhat found WordPress through WordPress code on esrtreit.com. WordPress is used by 606,902 companies runsonwhat tracks. ### How long has ESRT used Bynder? ESRT has used Bynder since at least November 2022, going by the first public certificate of the esrtreit.com subdomain that points at Bynder. ### Does ESRT use jQuery? Yes. runsonwhat found jQuery at ESRT through jQuery code on esrtreit.com. jQuery is a Frontend tool used by 927,260 companies runsonwhat tracks. ### Does ESRT use AI tools? Yes. runsonwhat has found Anthropic and OpenAI at ESRT; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so ESRT may use more AI tools than these. ### Has ESRT changed tools recently? Yes. On runsonwhat's rechecks, ESRT started using Apple Business, Microsoft 365 and Anthropic (latest on November 8, 2026) and stopped using OpenAI, Adobe and Anthropic (latest on October 31, 2026). A change counts only between two checks of esrtreit.com done the same way. ### Which companies have a tech stack similar to ESRT's? The companies with the stacks most like ESRT's are Cove Communities, Icelandic, Christian Science and Railbookers Group, according to runsonwhat (November 2026). Each shares 4 to 16 tools with ESRT, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what ESRT uses? runsonwhat reads public records only. Of the 32 tools at ESRT, 22 were found through code on esrtreit.com, 7 through DNS records, 2 through email records and 1 through certificate records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and esrtreit.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/esrtreit.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.