# What does Delfi use? Delfi (delfi.ee) shows public evidence of 50 tools, according to runsonwhat (last checked 2026-10-20). ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | Custom domain, DNS records, Website code | 2023-04 | | [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 | | | [CDN77](https://www.runsonwhat.com/reverse/cdn77) | CDN & Edge | Custom domain | 2025-10 | ## 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 | | | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | | [Vue.js](https://www.runsonwhat.com/reverse/vue) | Frontend | Website code | | | [OpenAI](https://www.runsonwhat.com/reverse/openai) | AI | DNS verification records | | | [Nuxt](https://www.runsonwhat.com/reverse/nuxt) | Frontend | Website code | | | [JW Player](https://www.runsonwhat.com/reverse/jw-player) | 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 | | | [Meta Pixel](https://www.runsonwhat.com/reverse/meta-pixel) | Ads & Pixels | DNS verification records, Website code | | | [Microsoft Ads](https://www.runsonwhat.com/reverse/bing-ads) | 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 | | | [Google AdSense](https://www.runsonwhat.com/reverse/google-adsense) | Ads & Pixels | Website code | | | [Criteo](https://www.runsonwhat.com/reverse/criteo) | Ads & Pixels | Website config | | | [Magnite](https://www.runsonwhat.com/reverse/magnite) | Ads & Pixels | Website config | | | [PubMatic](https://www.runsonwhat.com/reverse/pubmatic) | Ads & Pixels | Website config | | | [OpenX](https://www.runsonwhat.com/reverse/openx) | Ads & Pixels | Website config | | | [Amazon Publisher Services](https://www.runsonwhat.com/reverse/amazon-publisher-services) | Ads & Pixels | Website config | | | [Media.net](https://www.runsonwhat.com/reverse/media-net) | Ads & Pixels | Website config | | | [Index Exchange](https://www.runsonwhat.com/reverse/index-exchange) | Ads & Pixels | Website config | | | [Sovrn](https://www.runsonwhat.com/reverse/sovrn) | Ads & Pixels | Website config | | | [TripleLift](https://www.runsonwhat.com/reverse/triplelift) | Ads & Pixels | Website config | | | [Apollo.io](https://www.runsonwhat.com/reverse/apollo) | Sales & CRM | Website code | | | [Sharethrough](https://www.runsonwhat.com/reverse/sharethrough) | Ads & Pixels | Website config | | | [Teads](https://www.runsonwhat.com/reverse/teads) | Ads & Pixels | Website config | | | [Outbrain](https://www.runsonwhat.com/reverse/outbrain) | Ads & Pixels | Website config | | | [OneSignal](https://www.runsonwhat.com/reverse/onesignal) | Marketing | Website code | | | [Adform](https://www.runsonwhat.com/reverse/adform) | Ads & Pixels | Website code | | | [Piano](https://www.runsonwhat.com/reverse/piano) | Marketing | Website code | | | [Cxense](https://www.runsonwhat.com/reverse/cxense) | Marketing | Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | Email records, Website code | | | [reCAPTCHA](https://www.runsonwhat.com/reverse/recaptcha) | Security & Compliance | Website code | | | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records, Website code | | | [Amazon SES](https://www.runsonwhat.com/reverse/ses) | Email Delivery | Email records, Website code | | | [CookieYes](https://www.runsonwhat.com/reverse/cookieyes) | Security & Compliance | Website code | | | [1Password](https://www.runsonwhat.com/reverse/1password) | Security & Compliance | DNS verification records | | | [Bitwarden](https://www.runsonwhat.com/reverse/bitwarden) | Security & Compliance | DNS verification records | | | [Cursor](https://www.runsonwhat.com/reverse/cursor) | Dev Tools | DNS verification records | | | [TeamViewer](https://www.runsonwhat.com/reverse/teamviewer) | Dev Tools | DNS verification records | | | [DMARC Digests](https://www.runsonwhat.com/reverse/dmarcdigests) | Security & Compliance | Email records | | | [Mosyle](https://www.runsonwhat.com/reverse/mosyle) | Security & Compliance | DNS verification records | | ## FAQ ### What tools does Delfi use? As of October 2026, runsonwhat has found 50 tools at Delfi (delfi.ee) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Amazon Route 53. Application: jQuery, Google Fonts and Anthropic. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: Google Ads, Meta Pixel and Microsoft Ads. Company Ops: Microsoft 365, reCAPTCHA and SendGrid. Last checked October 20, 2026. ### What cloud does Delfi run on? Delfi uses Amazon Web Services for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on delfi.ee. Amazon Web Services is used by 145,787 companies runsonwhat tracks. ### What sales tools does Delfi use? The sales tools runsonwhat has found at Delfi are Apollo.io (October 2026); no CRM shows up in Delfi's public records. runsonwhat found Apollo.io through Apollo.io code on delfi.ee. Apollo.io is used by 11,245 companies runsonwhat tracks. ### What email provider does Delfi use? Delfi uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and code on delfi.ee. Microsoft 365 is used by 712,531 companies runsonwhat tracks. ### What analytics tools does Delfi use? Delfi 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 delfi.ee. Google Analytics is used by 883,829 companies runsonwhat tracks. ### What marketing software does Delfi use? Delfi uses OneSignal for marketing, alongside Piano and Cxense, according to runsonwhat (October 2026). runsonwhat found OneSignal through OneSignal code on delfi.ee. OneSignal is used by 5,619 companies runsonwhat tracks. ### How long has Delfi used Cloudflare? Delfi has used Cloudflare since at least April 2023, going by the first public certificate of the delfi.ee subdomain that points at Cloudflare. Other long-running tools at Delfi include CDN77 (since October 2025). ### Does Delfi use jQuery? Yes. runsonwhat found jQuery at Delfi through jQuery code on delfi.ee. jQuery is a Frontend tool used by 918,059 companies runsonwhat tracks. ### Does Delfi use AI tools? Yes. runsonwhat has found Anthropic and OpenAI at Delfi; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Delfi may use more AI tools than these. ### Which companies have a tech stack similar to Delfi's? The companies with the stacks most like Delfi's are Passauer Neue Presse, Bloodhorse, JAV HD and road.cc, according to runsonwhat (October 2026). Each shares 12 to 25 tools with Delfi, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Delfi uses? runsonwhat reads public records only. Of the 50 tools at Delfi, 21 were found through code on delfi.ee, 13 through website configuration files, 10 through DNS records, 4 through email records and 2 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and delfi.ee about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/delfi.ee (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.