Companies Using Optanon

Optanon is used by 41,037 companies worldwide, including Tata Consultancy Services Limited, Accenture PLC, Deloitte Touche Tohmatsu Limited, based on our analysis of 50M+ crawled domains at TechnologyChecker.io. It's particularly popular in the Real Estate industry (6.75% of customers).

Optanon has 41,037 active customers detected through our monthly crawl of 50M+ domains. We enriched 19,870 of these with LinkedIn company data on TechnologyChecker.io to generate detailed insights. An additional 58,658 sites that previously used Optanon are also tracked.

Optanon's market share in the Tag Management category is tracked through related detection technologies. With 41,037 detected customers, it is a major player in the category — based on our analysis of 50M+ domains and 40K+ technologies at TechnologyChecker.io.

The top alternatives to Optanon include GTM Server Side Tagging (0.23% market share), LoftLoader (0.11% market share), Yahoo! Tag Manager (0.04% market share), HandL UTM Grabber (0.04% market share) — based on our market share data across 50M+ crawled domains.

United States leads with 9,793 Optanon customers, followed by United Kingdom (2,163), Canada (724), France (526), Germany (475), based on our enriched company data at TechnologyChecker.io.

The most common company size is 1-10 employees, representing 38.9% of Optanon customers, based on our analysis of 19,870 enriched companies. This is followed by 51-200 employees (17.2%) and 11-50 employees (15.9%).

The majority of Optanon customers were founded in the 2010s (27.56%), followed by the 2000s (18.35%), based on our analysis of 19,870 enriched companies. This suggests Optanon is most popular among relatively young companies.

The ideal Optanon customer is: Company Size: 1-10 employees, Location: US, UK, or Canada, City: New York, London, Munich, San Francisco, Founded: 2010-2019, Company Age: ~7-15 years old — based on our analysis of 19,870 enriched companies at TechnologyChecker.io.

Optanon is a cookie compliance and website auditing solution that OneTrust acquired in September 2016. The two brands share overlapping functionality, and OneTrust documentation states they can be used interchangeably. Our detection data confirms this: 99.84% of domains running Optanon scripts also run OneTrust code. The Optanon script identifier persists on legacy implementations while newer deployments use the OneTrust brand.

The OptanonConsent cookie stores information about which cookie categories a site visitor has accepted or rejected. It records consent preferences for Strictly Necessary, Performance, Functional, Targeting, and Social Media cookies. The cookie has a one-year expiration period. When a user interacts with a consent banner, their choices are saved to this cookie so the site remembers their preferences on subsequent visits.

OptanonWrapper is a callback function in the OneTrust SDK that fires when user consent becomes available. Developers use it to execute scripts conditionally based on the visitor's cookie preferences. For example, analytics or advertising tags can be placed inside OptanonWrapper so they only load after consent is granted. OneTrust recommends using its newer InsertScript method for new implementations, though OptanonWrapper remains widely deployed.

Per Vendr data from 325 purchases, the median OneTrust buyer pays $11,500 per year. Entry-level pricing starts around $1,620 per year for basic cookie consent, while enterprise packages can reach $42,534 annually. OneTrust doesn't publish pricing publicly. Costs vary based on the number of web properties scanned, regulatory frameworks covered, and whether you need additional modules like data mapping or vendor risk management.

Based on TechnologyChecker.io data across 19,870 enriched companies, Real Estate leads Optanon adoption at 6.75%, followed by Software Development (5.57%), Retail (4.82%), and Financial Services (4.0%). The distribution is flat with no single industry exceeding 7%, which confirms Optanon is a horizontal compliance tool used across regulated and data-heavy sectors including insurance, healthcare, and advertising.

Yes, oneTrust Cookie Auto-Blocking detects and blocks third-party tracking technologies on your website until the visitor provides consent through the banner. This feature is built directly into the OneTrust platform and requires no extra coding or integrations. It works by intercepting script execution based on the category assignment of each cookie and the visitor's consent choices stored in the OptanonConsent cookie.

Yes, but OneTrust recommends placing the CDN script as the first script in your page source code rather than deploying through GTM. If you do use GTM, the GTM header script must load before any other scripts to ensure Optanon can block cookies before they fire. Our tech stack data shows 90.89% of Optanon users also run Google Tag Manager, confirming the two tools frequently coexist on the same site.

The largest companies running Optanon include Tata Consultancy Services, Accenture, Deloitte, McDonald's, Siemens, Bank of America, JP Morgan Chase, Samsung, and DHL Express. According to our detection data on TechnologyChecker.io, 4.3% of Optanon users have 10,001+ employees. BuiltWith independently lists T-Mobile, Intel, and Scotiabank among top-traffic Optanon sites.

Yes, though adoption has declined from its December 2024 peak of 36,017 active domains. As of mid-2025, our data shows roughly 27,745 domains still running Optanon scripts. The decline likely reflects OneTrust's rebranding effort, where newer SDK versions use the OneTrust identifier instead of the legacy Optanon tag. Third-party sources like Landbase and BuiltWith still track tens of thousands of active Optanon implementations.

OneTrust's cookie consent platform includes automated website scanning to detect tracking technologies, customizable consent banners supporting multiple languages, auto-blocking of cookies before consent, integration with Google Tag Manager and other tag management tools, support for regulatory frameworks including GDPR and CCPA, and a consent logging dashboard. It earned a 4.3 out of 5 rating on Google with 151 reviews.

The United States accounts for 50.1% of all enriched Optanon companies (9,793 of 19,870), followed by the United Kingdom at 11.1% (2,163). Canada ranks third at 3.7%, with France (2.7%) and Germany (2.4%) close behind. Continental European countries together make up about 13% of the user base, reflecting Optanon's GDPR compliance origins. English-speaking markets dominate at over 64% of all detected deployments.

According to Datanyze's consent management market share data, Cookiebot leads with 29.68% market share, CookieYes follows at 23.76%, and Cookie Consent holds 20.66%. Optanon (tracked separately from OneTrust) holds 5.10% with 35,137 domains. OneTrust's combined footprint is larger, but competing tools often win on pricing and simplicity. Our detection data shows Optanon users tend to be larger organizations with more complex compliance needs.

OneTrust assigns cookies to five default categories: Strictly Necessary (always active, can't be opted out), Performance (site analytics and speed monitoring), Functional (enhanced features like chat widgets), Targeting (advertising and tracking pixels), and Social Media (sharing buttons and embedded content). Site administrators can customize these categories and assign specific cookies to each group through the OneTrust dashboard.

Yes, our data shows 38.9% of Optanon users have 1-10 employees, and another 15.9% have 11-50 employees. Combined, businesses with under 50 employees make up 54.8% of the user base. Small businesses typically adopt Optanon through OneTrust's lower-tier plans starting around $1,620 per year. The tool's appeal across company sizes reflects the reality that cookie consent laws apply to organizations regardless of headcount.