# What does Nucleus Security use? Nucleus Security (nucleussec.com) shows public evidence of 41 tools, according to runsonwhat (last checked 2026-10-20). - Industry: Cybersecurity - Size: 51–200 employees - Based in: Sarasota, United States - Founded: 2018 - LinkedIn: https://www.linkedin.com/company/nucleussec ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS verification records, DNS records, Email records, Website code | | | [Amazon Web Services](https://www.runsonwhat.com/reverse/aws) | Hosting & Cloud | Website code | | | [WP Engine](https://www.runsonwhat.com/reverse/wpengine) | Hosting & Cloud | Website code | | | [Aptible](https://www.runsonwhat.com/reverse/aptible) | Hosting & Cloud | Custom domain | 2025-03 | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [YouTube](https://www.runsonwhat.com/reverse/youtube) | Media & UI | Website code | | | [GSAP](https://www.runsonwhat.com/reverse/gsap) | Media & UI | Website code | | | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | | [OpenAI](https://www.runsonwhat.com/reverse/openai) | AI | DNS verification records | | | [Lottie](https://www.runsonwhat.com/reverse/lottie) | Media & UI | 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 | | | [Crazy Egg](https://www.runsonwhat.com/reverse/crazyegg) | Analytics | Website code | | | [Atlassian Statuspage](https://www.runsonwhat.com/reverse/statuspage) | Monitoring | Custom domain | 2021-12 | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [WordPress](https://www.runsonwhat.com/reverse/wordpress) | Website & CMS | Website code | | | [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code | | | [Yoast SEO](https://www.runsonwhat.com/reverse/yoast) | Website & CMS | Website code | | | [Microsoft Ads](https://www.runsonwhat.com/reverse/bing-ads) | Ads & Pixels | Website code | | | [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code | | | [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp) | Marketing | Email records, Website code | | | [HubSpot](https://www.runsonwhat.com/reverse/hubspot) | Sales & CRM | Email records, Website code | | | [Brevo](https://www.runsonwhat.com/reverse/brevo) | Marketing | DNS verification records | | | [Salesforce](https://www.runsonwhat.com/reverse/salesforce) | Sales & CRM | Email records, Website code | | | [Reddit Ads](https://www.runsonwhat.com/reverse/reddit-ads) | Ads & Pixels | Website code | | | [LinkedIn](https://www.runsonwhat.com/reverse/linkedin) | Marketing | DNS verification records | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | Email records, DNS verification records, Website code | | | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | | [Cookiebot](https://www.runsonwhat.com/reverse/cookiebot) | Security & Compliance | Website code | | | [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records | | | [Amazon SES](https://www.runsonwhat.com/reverse/ses) | Email Delivery | DNS verification records, Email records, Website code | | | [Mailchimp Transactional](https://www.runsonwhat.com/reverse/mandrill) | Email Delivery | Email records | | | [CookieYes](https://www.runsonwhat.com/reverse/cookieyes) | Security & Compliance | Website code | | | [KnowBe4](https://www.runsonwhat.com/reverse/knowbe4) | Security & Compliance | Email records | | | [Cursor](https://www.runsonwhat.com/reverse/cursor) | Dev Tools | DNS verification records | | | [Notion](https://www.runsonwhat.com/reverse/notion) | Collaboration | DNS verification records | | | [Zapier](https://www.runsonwhat.com/reverse/zapier) | Dev Tools | DNS verification records | | | [JetBrains](https://www.runsonwhat.com/reverse/jetbrains) | Dev Tools | DNS verification records | | | [PandaDoc](https://www.runsonwhat.com/reverse/pandadoc) | Finance & Legal | DNS verification records | | | [Gamma](https://www.runsonwhat.com/reverse/gamma) | Collaboration | DNS verification records | | ## FAQ ### What tools does Nucleus Security use? As of October 2026, runsonwhat has found 41 tools at Nucleus Security (nucleussec.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and WP Engine. Application: YouTube, GSAP and Anthropic. Data & Observability: Google Analytics, Google Tag Manager and Crazy Egg. Go-to-market: WordPress, Google Ads and Yoast SEO. Company Ops: Microsoft 365, SendGrid and Apple Business. Last checked October 20, 2026. ### What cloud does Nucleus Security run on? Nucleus Security uses Amazon Web Services for hosting and cloud infrastructure, alongside WP Engine and Aptible, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on nucleussec.com. Amazon Web Services is used by 145,597 companies runsonwhat tracks. ### What CRM does Nucleus Security use? Nucleus Security uses HubSpot for its CRM, alongside Salesforce, according to runsonwhat (October 2026). runsonwhat found HubSpot through email records that authorize HubSpot and code on nucleussec.com. HubSpot is used by 93,836 companies runsonwhat tracks. ### What email provider does Nucleus Security use? Nucleus Security uses Microsoft 365 for email and office software, alongside Apple Business, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and a DNS verification record. Microsoft 365 is used by 710,116 companies runsonwhat tracks. ### What analytics tools does Nucleus Security use? Nucleus Security uses Google Analytics for analytics, alongside Google Tag Manager and Crazy Egg, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on nucleussec.com. Google Analytics is used by 877,813 companies runsonwhat tracks. ### What is Nucleus Security's website built with? Nucleus Security uses WordPress for its website, alongside Yoast SEO, according to runsonwhat (October 2026). runsonwhat found WordPress through WordPress code on nucleussec.com. WordPress is used by 595,974 companies runsonwhat tracks. ### How long has Nucleus Security used Atlassian Statuspage? Nucleus Security has used Atlassian Statuspage since at least December 2021, going by the first public certificate of the nucleussec.com subdomain that points at Atlassian Statuspage. Other long-running tools at Nucleus Security include Aptible (since March 2025). ### Does Nucleus Security use Cloudflare? Yes. runsonwhat found Cloudflare at Nucleus Security through a DNS verification record for Cloudflare and DNS records. Cloudflare is a CDN & Edge tool used by 702,355 companies runsonwhat tracks. ### Does Nucleus Security use AI tools? Yes. runsonwhat has found Anthropic and OpenAI at Nucleus Security; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Nucleus Security may use more AI tools than these. ### Which companies have a tech stack similar to Nucleus Security's? The companies with the stacks most like Nucleus Security's are Zapier, Bloomreach, Ditto and Checkmk, according to runsonwhat (October 2026). Each shares 14 to 24 tools with Nucleus Security, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Nucleus Security uses? runsonwhat reads public records only. Of the 41 tools at Nucleus Security, 16 were found through code on nucleussec.com, 15 through DNS records, 7 through email records, 2 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 nucleussec.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/nucleussec.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.