# What does Isaacus use? Isaacus (isaacus.com) shows public evidence of 26 tools, according to runsonwhat (last checked 2026-11-09). - LinkedIn: https://www.linkedin.com/company/isaacus ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS records, Email records, Website code | | | [Amazon Web Services](https://www.runsonwhat.com/reverse/aws) | Hosting & Cloud | Custom domain | 2021-12 | | [Microsoft Azure](https://www.runsonwhat.com/reverse/azure) | Hosting & Cloud | Subprocessor list | | | [Hetzner](https://www.runsonwhat.com/reverse/hetzner) | Hosting & Cloud | Subprocessor list | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [Tailwind CSS](https://www.runsonwhat.com/reverse/tailwind) | Frontend | Website code | | | [Stripe](https://www.runsonwhat.com/reverse/stripe) | Payments & Billing | DNS verification records, Website code | | | [SvelteKit](https://www.runsonwhat.com/reverse/sveltekit) | Frontend | Website code | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Subprocessor list | | | [Sentry](https://www.runsonwhat.com/reverse/sentry) | Monitoring | Subprocessor list | | | [Better Stack](https://www.runsonwhat.com/reverse/betterstack) | Monitoring | Custom domain | 2021-11 | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Ahrefs](https://www.runsonwhat.com/reverse/ahrefs) | Marketing | DNS verification records | | | [LinkedIn](https://www.runsonwhat.com/reverse/linkedin) | Marketing | DNS verification records | | | [Discord](https://www.runsonwhat.com/reverse/discord) | Support & Docs | Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records, Email records, Website code | | | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records | | | [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records | | | [Let's Encrypt](https://www.runsonwhat.com/reverse/letsencrypt) | Security & Compliance | DNS records | | | [Sectigo](https://www.runsonwhat.com/reverse/sectigo) | Security & Compliance | DNS records | | | [DigiCert](https://www.runsonwhat.com/reverse/digicert) | Security & Compliance | DNS records | | | [Google Trust Services](https://www.runsonwhat.com/reverse/google-trust) | Security & Compliance | DNS records | | | [Resend](https://www.runsonwhat.com/reverse/resend) | Email Delivery | Email records | | | [Amazon Trust Services](https://www.runsonwhat.com/reverse/amazon-trust) | Security & Compliance | DNS records | | | [Vanta](https://www.runsonwhat.com/reverse/vanta) | Security & Compliance | Custom domain | 2026-04 | | [GitHub](https://www.runsonwhat.com/reverse/github) | Dev Tools | Subprocessor list | | ## FAQ ### What tools does Isaacus use? As of November 2026, runsonwhat has found 26 tools at Isaacus (isaacus.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Microsoft Azure. Application: Tailwind CSS, Stripe and SvelteKit. Data & Observability: Google Analytics, Sentry and Better Stack. Go-to-market: Ahrefs, LinkedIn and Discord. Company Ops: Microsoft 365, SendGrid and Atlassian. Last checked November 9, 2026. ### What cloud does Isaacus run on? Isaacus uses Amazon Web Services for hosting and cloud infrastructure, alongside Microsoft Azure and Hetzner, according to runsonwhat (November 2026). runsonwhat found Amazon Web Services through a subdomain that points at Amazon Web Services, and Isaacus has used it since at least December 2021. Amazon Web Services is used by 147,633 companies runsonwhat tracks. ### What email provider does Isaacus use? Isaacus uses Microsoft 365 for email and office software, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365 and email records. Microsoft 365 is used by 736,661 companies runsonwhat tracks. ### What does Isaacus use for customer support? Isaacus uses Discord for customer support and documentation, according to runsonwhat (November 2026). runsonwhat found Discord through Discord code on isaacus.com. Discord is used by 7,050 companies runsonwhat tracks. ### What payment provider does Isaacus use? Isaacus uses Stripe for payments and billing, according to runsonwhat (November 2026). runsonwhat found Stripe through a DNS verification record for Stripe and code on isaacus.com. Stripe is used by 31,480 companies runsonwhat tracks. ### What analytics tools does Isaacus use? Isaacus uses Google Analytics for analytics, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics on isaacus.com's subprocessor list. Google Analytics is used by 904,027 companies runsonwhat tracks. ### How long has Isaacus used Better Stack? Isaacus has used Better Stack since at least November 2021, going by the first public certificate of the isaacus.com subdomain that points at Better Stack. Other long-running tools at Isaacus include Amazon Web Services (since December 2021) and Vanta (since April 2026). ### Does Isaacus use Cloudflare? Yes. runsonwhat found Cloudflare at Isaacus through DNS records that point at Cloudflare and email records. Cloudflare is a CDN & Edge tool used by 735,287 companies runsonwhat tracks. ### Which companies have a tech stack similar to Isaacus's? The companies with the stacks most like Isaacus' are Texas Undergraduate Computational Finance, Hessian, Square and Consensys - Building the Era of Decentralized Finance, according to runsonwhat (November 2026). Each shares 2 to 15 tools with Isaacus, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Isaacus uses? runsonwhat reads public records only. Of the 26 tools at Isaacus, 12 were found through DNS records, 5 through its own subprocessor list, 3 through subdomains that point at the vendor, 3 through code on isaacus.com, 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 isaacus.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/isaacus.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.