# What does Topsort use? Topsort (topsort.com) shows public evidence of 33 tools, according to runsonwhat (last checked 2026-11-08). - Industry: Internet - Size: 51–200 employees - Based in: San Francisco, United States - Founded: 2021 - LinkedIn: https://www.linkedin.com/company/topsort ## 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 | | ## 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 | | | [Tailwind CSS](https://www.runsonwhat.com/reverse/tailwind) | Frontend | Website code | | | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | | [ShareThis](https://www.runsonwhat.com/reverse/sharethis) | Media & UI | Website code | | | [Auth0](https://www.runsonwhat.com/reverse/auth0) | Auth & Identity | Custom domain, Website config | 2021-04 | ## 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 | | | [web-vitals](https://www.runsonwhat.com/reverse/web-vitals) | Monitoring | Website code | | | [PostHog](https://www.runsonwhat.com/reverse/posthog) | Analytics | Website code | | | [Piwik PRO](https://www.runsonwhat.com/reverse/piwik-pro) | Analytics | Website code | | | [FullStory](https://www.runsonwhat.com/reverse/fullstory) | Analytics | 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 | | | [HubSpot](https://www.runsonwhat.com/reverse/hubspot) | Sales & CRM | Email records, Website code | | | [Webflow](https://www.runsonwhat.com/reverse/webflow) | Website & CMS | Custom domain, Website code | | | [RB2B](https://www.runsonwhat.com/reverse/rb2b) | Sales & CRM | Website code | | | [Mintlify](https://www.runsonwhat.com/reverse/mintlify) | Support & Docs | Custom domain | 2021-11 | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records, Website code | | | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records, Website code | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | | [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | Custom domain | 2022-03 | | [Zoom](https://www.runsonwhat.com/reverse/zoom) | Collaboration | DNS verification records | | | [Cursor](https://www.runsonwhat.com/reverse/cursor) | Dev Tools | DNS verification records | | | [URIports](https://www.runsonwhat.com/reverse/uriports) | Security & Compliance | Email records | | | [Greenhouse](https://www.runsonwhat.com/reverse/greenhouse) | People & HR | Website code | | ## Hiring at Topsort 7 open roles on its public job board: Sales 4, Data & AI 2, Finance & Legal 1. ## FAQ ### What tools does Topsort use? As of November 2026, runsonwhat has found 33 tools at Topsort (topsort.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Amazon Route 53. Application: jQuery, Google Fonts and Tailwind CSS. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: Google Ads, LinkedIn Insight Tag and HubSpot. Company Ops: Google Workspace, SendGrid and Apple Business. Last checked November 8, 2026. ### What cloud does Topsort run on? Topsort 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 topsort.com. Amazon Web Services is used by 147,663 companies runsonwhat tracks. ### What CRM does Topsort use? Topsort uses HubSpot for its CRM, alongside RB2B, according to runsonwhat (November 2026). runsonwhat found HubSpot through email records that authorize HubSpot and code on topsort.com. HubSpot is used by 98,090 companies runsonwhat tracks. ### What email provider does Topsort use? Topsort uses Google Workspace for email and office software, alongside Apple Business, according to runsonwhat (November 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace and code on topsort.com. Google Workspace is used by 422,568 companies runsonwhat tracks. ### What does Topsort use for customer support? Topsort uses Mintlify for customer support and documentation, according to runsonwhat (November 2026). runsonwhat found Mintlify through a subdomain that points at Mintlify, and Topsort has used it since at least November 2021. Mintlify is used by 1,254 companies runsonwhat tracks. ### What analytics tools does Topsort use? Topsort uses Google Analytics for analytics, alongside Google Tag Manager, Microsoft Clarity and PostHog, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on topsort.com. Google Analytics is used by 904,286 companies runsonwhat tracks. ### How long has Topsort used Auth0? Topsort has used Auth0 since at least April 2021, going by the first public certificate of the topsort.com subdomain that points at Auth0. Other long-running tools at Topsort include Mintlify (since November 2021) and Atlassian (since March 2022). ### Does Topsort use jQuery? Yes. runsonwhat found jQuery at Topsort through jQuery code on topsort.com. jQuery is a Frontend tool used by 927,314 companies runsonwhat tracks. ### Does Topsort use AI tools? Yes. runsonwhat has found Anthropic at Topsort; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Topsort may use more AI tools than these. ### Is Topsort hiring? Yes. As of November 2026, Topsort has 7 open roles on its public Greenhouse job board, most in sales (4), data & AI (2) and finance & legal (1). 7 were posted in the last 30 days and 3 were taken down. ### Which companies have a tech stack similar to Topsort's? The companies with the stacks most like Topsort's are Retainful, getimg.ai, AppSignal and Ecomail.cz, s.r.o., according to runsonwhat (November 2026). Each shares 11 to 14 tools with Topsort, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Topsort uses? runsonwhat reads public records only. Of the 33 tools at Topsort, 18 were found through code on topsort.com, 6 through DNS records, 4 through email records, 4 through subdomains that point at the vendor and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and topsort.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/topsort.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.