# What does wallPen GmbH use? wallPen GmbH (wallpen.com) shows public evidence of 15 tools, according to runsonwhat (last checked 2026-10-31). - Industry: Printing - Size: 11–50 employees - Based in: Wissen, Germany - Founded: 2016 - LinkedIn: https://www.linkedin.com/company/wallpen ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [IONOS](https://www.runsonwhat.com/reverse/ionos) | Hosting & Cloud | Website code | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [Tailwind CSS](https://www.runsonwhat.com/reverse/tailwind) | Frontend | Website code | | | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | | [Vapi](https://www.runsonwhat.com/reverse/vapi) | AI | 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 | | | [Sentry](https://www.runsonwhat.com/reverse/sentry) | Monitoring | Website code | | ## 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 | Website code | | | [WhatsApp Business](https://www.runsonwhat.com/reverse/whatsapp) | Support & Docs | Website code | | | [Zoho](https://www.runsonwhat.com/reverse/zoho) | Sales & CRM | Email records, Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Mailjet](https://www.runsonwhat.com/reverse/mailjet) | Email Delivery | Email records, Custom domain | 2026-10 | | [Odoo](https://www.runsonwhat.com/reverse/odoo) | Finance & Legal | Custom domain | | | [SwissSign](https://www.runsonwhat.com/reverse/swisssign) | Security & Compliance | DNS verification records | | ## FAQ ### What tools does wallPen use? As of November 2026, runsonwhat has found 15 tools at wallPen (wallpen.com) in public records. Edge & Hosting: IONOS. Application: Tailwind CSS, Anthropic and Vapi. Data & Observability: Google Analytics, Google Tag Manager and Sentry. Go-to-market: Google Ads, Meta Pixel and WhatsApp Business. Company Ops: Mailjet, Odoo and SwissSign. Last checked October 31, 2026. ### What cloud does wallPen run on? wallPen uses IONOS for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found IONOS through IONOS code on wallpen.com. IONOS is used by 23,185 companies runsonwhat tracks. ### What CRM does wallPen use? wallPen uses Zoho for its CRM, according to runsonwhat (November 2026). runsonwhat found Zoho through email records that authorize Zoho and code on wallpen.com. Zoho is used by 63,566 companies runsonwhat tracks. ### What does wallPen use for customer support? wallPen uses WhatsApp Business for customer support and documentation, according to runsonwhat (November 2026). runsonwhat found WhatsApp Business through WhatsApp Business code on wallpen.com. WhatsApp Business is used by 138,100 companies runsonwhat tracks. ### What analytics tools does wallPen use? wallPen uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on wallpen.com. Google Analytics is used by 906,069 companies runsonwhat tracks. ### What monitoring tools does wallPen use? wallPen uses Sentry for monitoring, according to runsonwhat (November 2026). runsonwhat found Sentry through Sentry code on wallpen.com. Sentry is used by 80,053 companies runsonwhat tracks. ### How long has wallPen used Mailjet? wallPen has used Mailjet since at least October 2026, going by the first public certificate of the wallpen.com subdomain that points at Mailjet. ### Does wallPen use Google Ads? Yes. runsonwhat found Google Ads at wallPen through Google Ads code on wallpen.com. Google Ads is a Ads & Pixels tool used by 541,844 companies runsonwhat tracks. ### Does wallPen use AI tools? Yes. runsonwhat has found Anthropic and Vapi at wallPen; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so wallPen may use more AI tools than these. ### Which companies have a tech stack similar to wallPen's? The companies with the stacks most like wallPen's are Tequila, Cyberly, Dilate Digital and Trusted IT Group, according to runsonwhat (November 2026). Each shares 6 to 8 tools with wallPen, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what wallPen uses? runsonwhat reads public records only. Of the 15 tools at wallPen, 9 were found through code on wallpen.com, 3 through DNS records, 2 through email records and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and wallpen.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/wallpen.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.