# What does Esker use? Esker (esker.com) shows public evidence of 38 tools, according to runsonwhat (last checked 2026-10-20). - Industry: Software - Size: 1,001–5,000 employees - Based in: Villeurbanne, France - Founded: 1985 - LinkedIn: https://www.linkedin.com/company/esker ## 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 | | | [Microsoft Azure](https://www.runsonwhat.com/reverse/azure) | Hosting & Cloud | Custom domain | 2018-06 | | [Acquia](https://www.runsonwhat.com/reverse/acquia) | Hosting & Cloud | Website code | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | Website code | | | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | | [OpenAI](https://www.runsonwhat.com/reverse/openai) | AI | DNS verification records | | | [Vidyard](https://www.runsonwhat.com/reverse/vidyard) | 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 | | | [Sentry](https://www.runsonwhat.com/reverse/sentry) | Monitoring | Website code | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [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 | | | [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp) | Marketing | Email records | | | [Pardot](https://www.runsonwhat.com/reverse/pardot) | Marketing | Custom domain, DNS verification records | 2018-03 | | [The Trade Desk](https://www.runsonwhat.com/reverse/tradedesk) | Ads & Pixels | Website code | | | [ZoomInfo](https://www.runsonwhat.com/reverse/zoominfo) | Sales & CRM | Website code | | | [LiveRamp](https://www.runsonwhat.com/reverse/liveramp) | Ads & Pixels | Website code | | | [Demandbase](https://www.runsonwhat.com/reverse/demandbase) | Sales & CRM | Website code | | | [Marketo](https://www.runsonwhat.com/reverse/marketo) | Marketing | Custom domain, Website code | 2020-07 | | [AdRoll](https://www.runsonwhat.com/reverse/adroll) | Ads & Pixels | Website code | | | [Clickagy](https://www.runsonwhat.com/reverse/clickagy) | Sales & CRM | Website code | | | [G2](https://www.runsonwhat.com/reverse/g2) | Marketing | Website code | | | [Qualified](https://www.runsonwhat.com/reverse/qualified) | Sales & CRM | 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 | | | [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 | | | [Valimail](https://www.runsonwhat.com/reverse/valimail) | Security & Compliance | Email records | | | [DocuSign](https://www.runsonwhat.com/reverse/docusign) | Finance & Legal | DNS verification records | | | [Canva](https://www.runsonwhat.com/reverse/canva) | Collaboration | DNS verification records | | | [Figma](https://www.runsonwhat.com/reverse/figma) | Collaboration | DNS verification records | | | [GoTo](https://www.runsonwhat.com/reverse/goto) | Collaboration | DNS verification records | | | [Teamtailor](https://www.runsonwhat.com/reverse/teamtailor) | People & HR | Custom domain | 2026-02 | ## FAQ ### What tools does Esker use? As of October 2026, runsonwhat has found 38 tools at Esker (esker.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Microsoft Azure. Application: jQuery, Anthropic and OpenAI. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: Google Ads, LinkedIn Insight Tag and Mailchimp. Company Ops: Microsoft 365, SendGrid and Apple Business. Last checked October 20, 2026. ### What cloud does Esker run on? Esker uses Amazon Web Services for hosting and cloud infrastructure, alongside Microsoft Azure and Acquia, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on esker.com. Amazon Web Services is used by 146,016 companies runsonwhat tracks. ### What sales tools does Esker use? The sales tools runsonwhat has found at Esker are ZoomInfo, Demandbase, Clickagy and Qualified (October 2026); no CRM shows up in Esker's public records. runsonwhat found ZoomInfo through ZoomInfo code on esker.com. ### What email provider does Esker use? Esker uses Microsoft 365 for email and office software, alongside 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 715,964 companies runsonwhat tracks. ### What analytics tools does Esker use? Esker uses Google Analytics for analytics, alongside Google Tag Manager and Microsoft Clarity, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on esker.com. Google Analytics is used by 889,539 companies runsonwhat tracks. ### What marketing software does Esker use? Esker uses Mailchimp for marketing, alongside Pardot, Marketo and G2, according to runsonwhat (October 2026). runsonwhat found Mailchimp through email records that authorize Mailchimp. Mailchimp is used by 116,397 companies runsonwhat tracks. ### How long has Esker used Pardot? Esker has used Pardot since at least March 2018, going by the first public certificate of the esker.com subdomain that points at Pardot. Other long-running tools at Esker include Microsoft Azure (since June 2018), Marketo (since July 2020) and Teamtailor (since February 2026). ### Does Esker use jQuery? Yes. runsonwhat found jQuery at Esker through jQuery code on esker.com. jQuery is a Frontend tool used by 921,279 companies runsonwhat tracks. ### Does Esker use AI tools? Yes. runsonwhat has found Anthropic and OpenAI at Esker; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Esker may use more AI tools than these. ### Which companies have a tech stack similar to Esker's? The companies with the stacks most like Esker's are Notified, Saint-Gobain Romania, 帝国ホテル and Reynolds Consumer Products, according to runsonwhat (October 2026). Each shares 6 to 11 tools with Esker, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Esker uses? runsonwhat reads public records only. Of the 38 tools at Esker, 20 were found through code on esker.com, 10 through DNS records, 4 through subdomains that point at the vendor, 3 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 esker.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/esker.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.