# What does Marker use? Marker (onmarker.com) shows public evidence of 22 tools, according to runsonwhat (last checked 2026-10-20). - Industry: Productivity - Size: 1–10 employees - Based in: San Francisco, United States - Founded: 2026 - LinkedIn: https://www.linkedin.com/company/112296703 ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Cloud](https://www.runsonwhat.com/reverse/gcp) | Hosting & Cloud | DNS records, Subprocessor list | | | [Fastly](https://www.runsonwhat.com/reverse/fastly) | CDN & Edge | Website code | | | [Vercel](https://www.runsonwhat.com/reverse/vercel) | Hosting & Cloud | Custom domain | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Fonts](https://www.runsonwhat.com/reverse/google-fonts) | Media & UI | Website code | | | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | Subprocessor list | | | [OpenAI](https://www.runsonwhat.com/reverse/openai) | AI | Subprocessor list | | | [Firebase](https://www.runsonwhat.com/reverse/firebase) | Backend & Database | DNS records, Website code | | | [Astro](https://www.runsonwhat.com/reverse/astro) | Frontend | Website code | | | [WorkOS](https://www.runsonwhat.com/reverse/workos) | Auth & Identity | Custom domain | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code, Subprocessor list | | | [Amplitude](https://www.runsonwhat.com/reverse/amplitude) | Analytics | Website code, Subprocessor list | | ## 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 | Subprocessor list | | | [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code, Subprocessor list | | | [HubSpot](https://www.runsonwhat.com/reverse/hubspot) | Sales & CRM | Email records, Website code, Subprocessor list | | | [HubSpot CMS](https://www.runsonwhat.com/reverse/hubspot-cms) | Website & CMS | Custom domain | | | [Reddit Ads](https://www.runsonwhat.com/reverse/reddit-ads) | Ads & Pixels | Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | | [Postmark](https://www.runsonwhat.com/reverse/postmark) | Email Delivery | Email records | | | [Termly](https://www.runsonwhat.com/reverse/termly) | Security & Compliance | Website code | | ## FAQ ### What tools does Marker use? As of October 2026, runsonwhat has found 22 tools at Marker (onmarker.com) in public records. Edge & Hosting: Google Cloud, Fastly and Vercel. Application: Google Fonts, Anthropic and OpenAI. Data & Observability: Google Analytics and Amplitude. Go-to-market: Google Ads, Meta Pixel and LinkedIn Insight Tag. Company Ops: Google Workspace, Apple Business and Postmark. Last checked October 20, 2026. ### What cloud does Marker run on? Marker uses Google Cloud for hosting and cloud infrastructure, alongside Vercel, according to runsonwhat (October 2026). runsonwhat found Google Cloud through DNS records that point at Google Cloud and its subprocessor list. Google Cloud is used by 75,383 companies runsonwhat tracks. ### What CRM does Marker use? Marker uses HubSpot for its CRM, according to runsonwhat (October 2026). runsonwhat found HubSpot through email records that authorize HubSpot and code on onmarker.com. HubSpot is used by 92,966 companies runsonwhat tracks. ### What email provider does Marker use? Marker uses Google Workspace for email and office software, alongside Apple Business, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 400,236 companies runsonwhat tracks. ### What analytics tools does Marker use? Marker uses Google Analytics for analytics, alongside Amplitude, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on onmarker.com and its subprocessor list. Google Analytics is used by 863,628 companies runsonwhat tracks. ### What is Marker's website built with? Marker uses HubSpot CMS for its website, according to runsonwhat (October 2026). runsonwhat found HubSpot CMS through a subdomain that points at HubSpot CMS. HubSpot CMS is used by 32,991 companies runsonwhat tracks. ### Does Marker use Google Fonts? Yes. runsonwhat found Google Fonts at Marker through Google Fonts code on onmarker.com. Google Fonts is a Media & UI tool used by 798,816 companies runsonwhat tracks. ### Does Marker use AI tools? Yes. runsonwhat has found Anthropic and OpenAI at Marker; Anthropic, for example, through Anthropic on onmarker.com's subprocessor list. AI services called only from servers leave no public trace, so Marker may use more AI tools than these. ### Which companies have a tech stack similar to Marker's? The companies with the stacks most like Marker's are Ergo, Craze, Asteroid and Profound, according to runsonwhat (October 2026). Each shares 7 to 11 tools with Marker, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Marker uses? runsonwhat reads public records only. Of the 22 tools at Marker, 9 were found through code on onmarker.com, 4 through DNS records, 3 through email records, 3 through its own subprocessor list and 3 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and onmarker.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/onmarker.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.