# What does big fish® use? big fish® (bigfish.co.uk) shows public evidence of 21 tools, according to runsonwhat (last checked 2026-11-11). - Industry: Marketing and Advertising - Size: 51–200 employees - Based in: London, United Kingdom - Founded: 1994 - LinkedIn: https://www.linkedin.com/company/bigfishlondon ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | Website code | | ## 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 | | | [Font Awesome](https://www.runsonwhat.com/reverse/fontawesome) | Media & UI | Website code | | | [Vimeo](https://www.runsonwhat.com/reverse/vimeo) | Media & UI | Website code | | | [GSAP](https://www.runsonwhat.com/reverse/gsap) | Media & UI | Website code | | | [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code | | | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | | [Vue.js](https://www.runsonwhat.com/reverse/vue) | Frontend | 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 | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [WordPress](https://www.runsonwhat.com/reverse/wordpress) | Website & CMS | Website code | | | [Yoast SEO](https://www.runsonwhat.com/reverse/yoast) | Website & CMS | Website code | | | [Elementor](https://www.runsonwhat.com/reverse/elementor) | Website & CMS | Website code | | | [Klaviyo](https://www.runsonwhat.com/reverse/klaviyo) | Marketing | DNS verification records, Website code | | | [Ahrefs](https://www.runsonwhat.com/reverse/ahrefs) | Marketing | Website code | | | [Dealfront](https://www.runsonwhat.com/reverse/leadfeeder) | Sales & CRM | Website code | | | [Demandbase](https://www.runsonwhat.com/reverse/demandbase) | Sales & CRM | Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records | | | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records | | ## Recent changes at big fish® - 2026-11-11: stopped using [Google Ads](https://www.runsonwhat.com/reverse/google-ads) - 2026-11-11: stopped using [LiveIntent](https://www.runsonwhat.com/reverse/liveintent) - 2026-11-11: stopped using [Meta Pixel](https://www.runsonwhat.com/reverse/meta-pixel) - 2026-10-27: started using [Anthropic](https://www.runsonwhat.com/reverse/anthropic) ## FAQ ### What tools does big fish® use? As of November 2026, runsonwhat has found 21 tools at big fish® (bigfish.co.uk) in public records. Edge & Hosting: Cloudflare. Application: jQuery, Google Fonts and Font Awesome. Data & Observability: Google Analytics and Google Tag Manager. Go-to-market: WordPress, Yoast SEO and Elementor. Company Ops: Google Workspace and SendGrid. Last checked November 11, 2026. ### What sales tools does big fish® use? The sales tools runsonwhat has found at big fish® are Dealfront and Demandbase (November 2026); no CRM shows up in big fish®'s public records. runsonwhat found Dealfront through Dealfront code on bigfish.co.uk. ### What email provider does big fish® use? big fish® uses Google Workspace for email and office software, according to runsonwhat (November 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 419,292 companies runsonwhat tracks. ### What analytics tools does big fish® use? big fish® uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on bigfish.co.uk. Google Analytics is used by 903,845 companies runsonwhat tracks. ### What is big fish®'s website built with? big fish® uses WordPress for its website, alongside Yoast SEO and Elementor, according to runsonwhat (November 2026). runsonwhat found WordPress through WordPress code on bigfish.co.uk. WordPress is used by 606,734 companies runsonwhat tracks. ### What marketing software does big fish® use? big fish® uses Klaviyo for marketing, alongside Ahrefs, according to runsonwhat (November 2026). runsonwhat found Klaviyo through a DNS verification record for Klaviyo and code on bigfish.co.uk. Klaviyo is used by 36,381 companies runsonwhat tracks. ### Does big fish® use jQuery? Yes. runsonwhat found jQuery at big fish® through jQuery code on bigfish.co.uk. jQuery is a Frontend tool used by 927,209 companies runsonwhat tracks. ### Does big fish® use AI tools? Yes. runsonwhat has found Anthropic at big fish®; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so big fish® may use more AI tools than these. ### Has big fish® changed tools recently? Yes. On runsonwhat's rechecks, big fish® started using Anthropic (latest on October 27, 2026) and stopped using Google Ads, LiveIntent and Meta Pixel (latest on November 11, 2026). A change counts only between two checks of bigfish.co.uk done the same way. ### How does runsonwhat know what big fish® uses? runsonwhat reads public records only. Of the 21 tools at big fish®, 16 were found through code on bigfish.co.uk, 3 through DNS records and 2 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and bigfish.co.uk about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/bigfish.co.uk (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.