# What does Calendarr use? Calendarr (calendarr.com) shows public evidence of 53 tools, according to runsonwhat (last checked 2026-11-08). ## 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 | | | [Amazon Route 53](https://www.runsonwhat.com/reverse/route53) | DNS | DNS records | | | [Bunny.net](https://www.runsonwhat.com/reverse/bunny) | CDN & Edge | Custom domain | 2017-08 | ## 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 | | ## 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 | | | [comScore](https://www.runsonwhat.com/reverse/comscore) | Analytics | 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 | Website code | | | [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code | | | [Google Ad Manager](https://www.runsonwhat.com/reverse/google-ad-manager) | Ads & Pixels | Website code, Website config | | | [Microsoft Xandr](https://www.runsonwhat.com/reverse/xandr) | Ads & Pixels | Website config, Website code | | | [Google AdSense](https://www.runsonwhat.com/reverse/google-adsense) | Ads & Pixels | Website code | | | [Criteo](https://www.runsonwhat.com/reverse/criteo) | Ads & Pixels | Website config, Website code | | | [Magnite](https://www.runsonwhat.com/reverse/magnite) | Ads & Pixels | Website config, Website code | | | [PubMatic](https://www.runsonwhat.com/reverse/pubmatic) | Ads & Pixels | Website config, Website code | | | [LiveRamp](https://www.runsonwhat.com/reverse/liveramp) | Ads & Pixels | Website code | | | [OpenX](https://www.runsonwhat.com/reverse/openx) | Ads & Pixels | Website config, Website code | | | [StackAdapt](https://www.runsonwhat.com/reverse/stackadapt) | Ads & Pixels | Website code | | | [Adobe Audience Manager](https://www.runsonwhat.com/reverse/adobe-audience-manager) | Ads & Pixels | Website code | | | [Amazon Publisher Services](https://www.runsonwhat.com/reverse/amazon-publisher-services) | Ads & Pixels | Website code, Website config | | | [Index Exchange](https://www.runsonwhat.com/reverse/index-exchange) | Ads & Pixels | Website config | | | [Media.net](https://www.runsonwhat.com/reverse/media-net) | Ads & Pixels | Website config, Website code | | | [Sovrn](https://www.runsonwhat.com/reverse/sovrn) | Ads & Pixels | Website config | | | [TripleLift](https://www.runsonwhat.com/reverse/triplelift) | Ads & Pixels | Website config, Website code | | | [Sharethrough](https://www.runsonwhat.com/reverse/sharethrough) | Ads & Pixels | Website config | | | [Taboola](https://www.runsonwhat.com/reverse/taboola) | Ads & Pixels | Website config, Website code | | | [Teads](https://www.runsonwhat.com/reverse/teads) | Ads & Pixels | Website config | | | [Amazon Advertising](https://www.runsonwhat.com/reverse/amazon-advertising) | Ads & Pixels | Website code | | | [RTB House](https://www.runsonwhat.com/reverse/rtb-house) | Ads & Pixels | Website code | | | [Quantcast](https://www.runsonwhat.com/reverse/quantcast) | Ads & Pixels | Website code | | | [Demandbase](https://www.runsonwhat.com/reverse/demandbase) | Sales & CRM | Website code | | | [Adobe Advertising](https://www.runsonwhat.com/reverse/adobe-advertising) | Ads & Pixels | Website code | | | [Bombora](https://www.runsonwhat.com/reverse/bombora) | Sales & CRM | Website code | | | [ID5](https://www.runsonwhat.com/reverse/id5) | Ads & Pixels | Website code | | | [MediaMath](https://www.runsonwhat.com/reverse/mediamath) | Ads & Pixels | Website code | | | [Outbrain](https://www.runsonwhat.com/reverse/outbrain) | Ads & Pixels | Website config | | | [33Across](https://www.runsonwhat.com/reverse/33across) | Ads & Pixels | Website code | | | [Lotame](https://www.runsonwhat.com/reverse/lotame) | Ads & Pixels | Website code | | | [Nativo](https://www.runsonwhat.com/reverse/nativo) | Ads & Pixels | Website code | | | [Adform](https://www.runsonwhat.com/reverse/adform) | Ads & Pixels | Website code | | | [MGID](https://www.runsonwhat.com/reverse/mgid) | Ads & Pixels | Website code | | | [MNTN](https://www.runsonwhat.com/reverse/mntn) | Ads & Pixels | Website code | | | [Clickagy](https://www.runsonwhat.com/reverse/clickagy) | Sales & CRM | Website code | | | [Smart Ad Server](https://www.runsonwhat.com/reverse/smart-ad-server) | Ads & Pixels | Website code | | | [Tapad](https://www.runsonwhat.com/reverse/tapad) | Ads & Pixels | Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records, Website code | | | [reCAPTCHA](https://www.runsonwhat.com/reverse/recaptcha) | Security & Compliance | Website code | | ## FAQ ### What tools does Calendarr use? As of November 2026, runsonwhat has found 53 tools at Calendarr (calendarr.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Amazon Route 53. Application: jQuery and Google Fonts. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: Google Ads, Meta Pixel and LinkedIn Insight Tag. Company Ops: Google Workspace and reCAPTCHA. Last checked November 8, 2026. ### What cloud does Calendarr run on? Calendarr uses Amazon Web Services for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on calendarr.com. Amazon Web Services is used by 147,369 companies runsonwhat tracks. ### What sales tools does Calendarr use? The sales tools runsonwhat has found at Calendarr are Demandbase, Bombora and Clickagy (November 2026); no CRM shows up in Calendarr's public records. runsonwhat found Demandbase through Demandbase code on calendarr.com. ### What email provider does Calendarr use? Calendarr uses Google Workspace for email and office software, according to runsonwhat (November 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace and code on calendarr.com. Google Workspace is used by 419,252 companies runsonwhat tracks. ### What analytics tools does Calendarr use? Calendarr uses Google Analytics for analytics, alongside Google Tag Manager, Microsoft Clarity and comScore, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on calendarr.com. Google Analytics is used by 903,808 companies runsonwhat tracks. ### What monitoring tools does Calendarr use? Calendarr uses Sentry for monitoring, according to runsonwhat (November 2026). runsonwhat found Sentry through Sentry code on calendarr.com. Sentry is used by 80,059 companies runsonwhat tracks. ### How long has Calendarr used Bunny.net? Calendarr has used Bunny.net since at least August 2017, going by the first public certificate of the calendarr.com subdomain that points at Bunny.net. ### Does Calendarr use jQuery? Yes. runsonwhat found jQuery at Calendarr through jQuery code on calendarr.com. jQuery is a Frontend tool used by 927,185 companies runsonwhat tracks. ### Which companies have a tech stack similar to Calendarr's? The companies with the stacks most like Calendarr's are 株式会社MyVision, Comic Studio, 富山いすゞ自動車株式会社 and Time Out Lisboa, according to runsonwhat (November 2026). Each shares 7 to 39 tools with Calendarr, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Calendarr uses? runsonwhat reads public records only. Of the 53 tools at Calendarr, 36 were found through code on calendarr.com, 13 through website configuration files, 2 through DNS records, 1 through email records and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and calendarr.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/calendarr.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.