# What does PDF Leader use? PDF Leader (pdfleader.com) shows public evidence of 25 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 | | | [Amazon CloudFront](https://www.runsonwhat.com/reverse/cloudfront) | CDN & Edge | Website code | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Fonts](https://www.runsonwhat.com/reverse/google-fonts) | Media & UI | Website code | | | [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code | | | [Tailwind CSS](https://www.runsonwhat.com/reverse/tailwind) | Frontend | Website code | | | [Remix](https://www.runsonwhat.com/reverse/remix) | Frontend | 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 | | | [Hotjar](https://www.runsonwhat.com/reverse/hotjar) | Analytics | Website code | | | [Segment](https://www.runsonwhat.com/reverse/segment) | Analytics | Website code | | | [Contentsquare](https://www.runsonwhat.com/reverse/contentsquare) | Analytics | Website code | | | [Amplitude](https://www.runsonwhat.com/reverse/amplitude) | Analytics | Website code | | | [GrowthBook](https://www.runsonwhat.com/reverse/growthbook) | Flags & Experiments | Website code | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code | | | [Microsoft Ads](https://www.runsonwhat.com/reverse/bing-ads) | Ads & Pixels | Website code | | | [Zendesk](https://www.runsonwhat.com/reverse/zendesk) | Support & Docs | Email records, Website code | | | [ChatGPT Ads](https://www.runsonwhat.com/reverse/chatgpt-ads) | Ads & Pixels | Website code | | | [Trustpilot](https://www.runsonwhat.com/reverse/trustpilot) | Marketing | Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records | | | [reCAPTCHA](https://www.runsonwhat.com/reverse/recaptcha) | Security & Compliance | Website code | | ## Recent changes at PDF Leader - 2026-11-08: started using again [Google Search Console](https://www.runsonwhat.com/reverse/gsc) - 2026-10-31: stopped using [Google Search Console](https://www.runsonwhat.com/reverse/gsc) ## FAQ ### What tools does PDF Leader use? As of November 2026, runsonwhat has found 25 tools at PDF Leader (pdfleader.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Amazon Route 53. Application: Google Fonts, React and Tailwind CSS. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: Google Ads, Microsoft Ads and Zendesk. Company Ops: Google Workspace and reCAPTCHA. Last checked November 8, 2026. ### What cloud does PDF Leader run on? PDF Leader 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 pdfleader.com. Amazon Web Services is used by 147,680 companies runsonwhat tracks. ### What email provider does PDF Leader use? PDF Leader uses Google Workspace for email and office software, according to runsonwhat (November 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 422,594 companies runsonwhat tracks. ### What does PDF Leader use for customer support? PDF Leader uses Zendesk for customer support and documentation, according to runsonwhat (November 2026). runsonwhat found Zendesk through email records that authorize Zendesk and code on pdfleader.com. Zendesk is used by 43,848 companies runsonwhat tracks. ### What analytics tools does PDF Leader use? PDF Leader uses Google Analytics for analytics, alongside Google Tag Manager, Microsoft Clarity and Hotjar, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on pdfleader.com. Google Analytics is used by 904,532 companies runsonwhat tracks. ### What marketing software does PDF Leader use? PDF Leader uses Trustpilot for marketing, according to runsonwhat (November 2026). runsonwhat found Trustpilot through Trustpilot code on pdfleader.com. Trustpilot is used by 16,438 companies runsonwhat tracks. ### Does PDF Leader use Google Fonts? Yes. runsonwhat found Google Fonts at PDF Leader through Google Fonts code on pdfleader.com. Google Fonts is a Media & UI tool used by 826,022 companies runsonwhat tracks. ### Has PDF Leader changed tools recently? Yes. On runsonwhat's rechecks, PDF Leader started using Google Search Console (latest on November 8, 2026) and stopped using Google Search Console (latest on October 31, 2026). A change counts only between two checks of pdfleader.com done the same way. ### Which companies have a tech stack similar to PDF Leader's? The companies with the stacks most like PDF Leader's are The Good Guys, Pégalo en Línea, VOILA CREATORS and React Router Official Documentation, according to runsonwhat (November 2026). Each shares 4 to 13 tools with PDF Leader, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what PDF Leader uses? runsonwhat reads public records only. Of the 25 tools at PDF Leader, 20 were found through code on pdfleader.com, 2 through DNS records, 2 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 pdfleader.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/pdfleader.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.