# What does Stefnir Hf. | Stefnir Asset Management Company use? Stefnir Hf. | Stefnir Asset Management Company (stefnir.is) shows public evidence of 21 tools, according to runsonwhat (last checked 2026-10-31). - Industry: Investment Management - Size: 11–50 employees - Based in: Reykjavík-5, Iceland - Founded: 1996 - LinkedIn: https://www.linkedin.com/company/stefnir-hf ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS records, Email records, Website code | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code | | | [Next.js](https://www.runsonwhat.com/reverse/nextjs) | Frontend | Website code | | | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | | [OpenAI](https://www.runsonwhat.com/reverse/openai) | AI | DNS verification records | | ## 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 | | | [Datadog](https://www.runsonwhat.com/reverse/datadog) | Monitoring | Website code | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code | | | [Dynamics 365 Customer Insights](https://www.runsonwhat.com/reverse/dynamics-365-marketing) | Marketing | DNS verification records | | | [Contentful](https://www.runsonwhat.com/reverse/contentful) | Website & CMS | Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records, 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 | | | [Proofpoint](https://www.runsonwhat.com/reverse/proofpoint) | Security & Compliance | Email 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 | | | [Foxit](https://www.runsonwhat.com/reverse/foxit) | Collaboration | DNS verification records | | | [Workplace from Meta](https://www.runsonwhat.com/reverse/meta-workplace) | Collaboration | DNS verification records | | ## FAQ ### What tools does Stefnir Hf. | Stefnir Asset Management Company use? As of November 2026, runsonwhat has found 21 tools at Stefnir Hf. | Stefnir Asset Management Company (stefnir.is) in public records. Edge & Hosting: Cloudflare. Application: React, Next.js and Anthropic. Data & Observability: Google Analytics, Google Tag Manager and Microsoft Clarity. Go-to-market: Google Ads, Dynamics 365 Customer Insights and Contentful. Company Ops: Microsoft 365, Atlassian and Let's Encrypt. Last checked October 31, 2026. ### What email provider does Stefnir Hf. | Stefnir Asset Management Company use? Stefnir Hf. | Stefnir Asset Management Company 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 720,481 companies runsonwhat tracks. ### What analytics tools does Stefnir Hf. | Stefnir Asset Management Company use? Stefnir Hf. | Stefnir Asset Management Company uses Google Analytics for analytics, alongside Google Tag Manager and Microsoft Clarity, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on stefnir.is. Google Analytics is used by 906,050 companies runsonwhat tracks. ### What is Stefnir Hf. | Stefnir Asset Management Company's website built with? Stefnir Hf. | Stefnir Asset Management Company uses Contentful for its website, according to runsonwhat (November 2026). runsonwhat found Contentful through Contentful code on stefnir.is. Contentful is used by 4,345 companies runsonwhat tracks. ### What marketing software does Stefnir Hf. | Stefnir Asset Management Company use? Stefnir Hf. | Stefnir Asset Management Company uses Dynamics 365 Customer Insights for marketing, according to runsonwhat (November 2026). runsonwhat found Dynamics 365 Customer Insights through a DNS verification record for Dynamics 365 Customer Insights. Dynamics 365 Customer Insights is used by 5,979 companies runsonwhat tracks. ### What monitoring tools does Stefnir Hf. | Stefnir Asset Management Company use? Stefnir Hf. | Stefnir Asset Management Company uses Datadog for monitoring, according to runsonwhat (November 2026). runsonwhat found Datadog through Datadog code on stefnir.is. Datadog is used by 11,752 companies runsonwhat tracks. ### Does Stefnir Hf. | Stefnir Asset Management Company use Cloudflare? Yes. runsonwhat found Cloudflare at Stefnir Hf. | Stefnir Asset Management Company through DNS records that point at Cloudflare and email records. Cloudflare is a CDN & Edge tool used by 725,656 companies runsonwhat tracks. ### Does Stefnir Hf. | Stefnir Asset Management Company use AI tools? Yes. runsonwhat has found Anthropic and OpenAI at Stefnir Hf. | Stefnir Asset Management Company; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Stefnir Hf. | Stefnir Asset Management Company may use more AI tools than these. ### Which companies have a tech stack similar to Stefnir Hf. | Stefnir Asset Management Company's? The companies with the stacks most like Stefnir Hf. | Stefnir Asset Management Company's are Community Southwark, Mercedes-Benz Of Hilton Head, Fanrock and EyeTX Vision Center, according to runsonwhat (November 2026). Each shares 5 to 7 tools with Stefnir Hf. | Stefnir Asset Management Company, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Stefnir Hf. | Stefnir Asset Management Company uses? runsonwhat reads public records only. Of the 21 tools at Stefnir Hf. | Stefnir Asset Management Company, 12 were found through DNS records, 8 through code on stefnir.is and 1 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and stefnir.is about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/stefnir.is (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.