# What does IAB use? IAB (iab.com) shows public evidence of 27 tools, according to runsonwhat (last checked 2026-10-31). - LinkedIn: https://www.linkedin.com/company/iab ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS records, Website code | | | [Amazon Web Services](https://www.runsonwhat.com/reverse/aws) | Hosting & Cloud | Website code | | | [Heroku](https://www.runsonwhat.com/reverse/heroku) | Hosting & Cloud | Custom domain | 2015-10 | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [jQuery](https://www.runsonwhat.com/reverse/jquery) | Frontend | 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 | | ## 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 | | | [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 | | | [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code | | | [HubSpot](https://www.runsonwhat.com/reverse/hubspot) | Sales & CRM | Custom domain, Email records, Website code | 2023-05 | | [WooCommerce](https://www.runsonwhat.com/reverse/woocommerce) | Website & CMS | Website code | | | [Zendesk](https://www.runsonwhat.com/reverse/zendesk) | Support & Docs | Email records, Website code | | | [HubSpot CMS](https://www.runsonwhat.com/reverse/hubspot-cms) | Website & CMS | Custom domain | 2023-05 | | [Calendly](https://www.runsonwhat.com/reverse/calendly) | Sales & CRM | Website code | | | [Marketo](https://www.runsonwhat.com/reverse/marketo) | Marketing | Custom domain | 2020-07 | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records, Email records | | | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records, Website code | | | [Amazon SES](https://www.runsonwhat.com/reverse/ses) | Email Delivery | DNS verification records, Email records, Website code | | | [OneTrust](https://www.runsonwhat.com/reverse/onetrust) | Security & Compliance | Website code | | | [DocuSign](https://www.runsonwhat.com/reverse/docusign) | Finance & Legal | DNS verification records, Website code | | | [Barracuda](https://www.runsonwhat.com/reverse/barracuda) | Security & Compliance | Email records | | | [PowerDMARC](https://www.runsonwhat.com/reverse/powerdmarc) | Security & Compliance | Email records | | ## Recent changes at IAB - 2026-10-31: stopped using [OpenAI](https://www.runsonwhat.com/reverse/openai) - 2026-10-31: stopped using [SMTP2GO](https://www.runsonwhat.com/reverse/smtp2go) - 2026-10-31: stopped using [Zoom](https://www.runsonwhat.com/reverse/zoom) ## FAQ ### What tools does IAB use? As of November 2026, runsonwhat has found 27 tools at IAB (iab.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Heroku. Application: jQuery, Font Awesome and Vimeo. Data & Observability: Google Analytics and Google Tag Manager. Go-to-market: WordPress, Google Ads and Yoast SEO. Company Ops: Microsoft 365, SendGrid and Amazon SES. Last checked October 31, 2026. ### What cloud does IAB run on? IAB uses Amazon Web Services for hosting and cloud infrastructure, alongside Heroku, according to runsonwhat (November 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on iab.com. Amazon Web Services is used by 146,412 companies runsonwhat tracks. ### What CRM does IAB use? IAB uses HubSpot for its CRM, alongside Calendly, according to runsonwhat (November 2026). runsonwhat found HubSpot through a subdomain that points at HubSpot and email records, and IAB has used it since at least May 2023. HubSpot is used by 96,019 companies runsonwhat tracks. ### What email provider does IAB use? IAB 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 718,247 companies runsonwhat tracks. ### What does IAB use for customer support? IAB uses Zendesk for customer support and documentation, according to runsonwhat (November 2026). runsonwhat found Zendesk through email records that authorize Zendesk and code on iab.com. Zendesk is used by 42,674 companies runsonwhat tracks. ### What analytics tools does IAB use? IAB uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on iab.com. Google Analytics is used by 903,776 companies runsonwhat tracks. ### How long has IAB used Heroku? IAB has used Heroku since at least October 2015, going by the first public certificate of the iab.com subdomain that points at Heroku. Other long-running tools at IAB include Marketo (since July 2020), HubSpot (since May 2023) and HubSpot CMS (since May 2023). ### Does IAB use jQuery? Yes. runsonwhat found jQuery at IAB through jQuery code on iab.com. jQuery is a Frontend tool used by 928,415 companies runsonwhat tracks. ### Has IAB changed tools recently? Yes. On runsonwhat's rechecks, IAB stopped using OpenAI, SMTP2GO and Zoom (latest on October 31, 2026). A change counts only between two checks of iab.com done the same way. ### Which companies have a tech stack similar to IAB's? The companies with the stacks most like IAB's are Brightest, PLTW, Planet Argon and Systemico Technologies, according to runsonwhat (November 2026). Each shares 3 to 15 tools with IAB, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what IAB uses? runsonwhat reads public records only. Of the 27 tools at IAB, 13 were found through code on iab.com, 5 through DNS records, 4 through email records, 4 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 iab.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/iab.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.