Semasio
Audience targeting and identity resolution platform used by publishers and brands. Semasio builds audience segments from content consumption and contextual signals, using these to power programmatic targeting without relying on personal identifiers.
Overview
Semasio is an audience targeting and identity resolution platform used by publishers and brands. It builds audience segments from content consumption patterns and contextual signals for use in programmatic advertising.
What This Script Does
The Semasio script analyzes page content and visitor browsing patterns to build contextual audience profiles. It sets cookies to maintain visitor identifiers across sessions and fires pixel requests to sync these identifiers with demand-side platforms. Audience segments are constructed from content categories consumed rather than explicit personal data, though persistent identifiers are still used to link activity across sites. Data is made available to programmatic buyers for targeted ad delivery.
Consent & Compliance
Consent category: Marketing / Advertising
Semasio builds audience profiles and syncs identifiers with advertising platforms. Under GDPR, this requires explicit opt-in consent as it involves profiling and cross-site tracking. Under CCPA, audience segment data shared with ad buyers qualifies as selling or sharing personal information. The ePrivacy Directive requires consent for cookies used for audience profiling, regardless of whether the profiling is based on content signals rather than personal identifiers.
Should You Block This Without Consent?
Yes. Semasio exists to build advertising audience segments. It has no functional purpose for website visitors and should be blocked until marketing consent is granted.
Consent Categories
Also Known As
Industries
Tracked Domains (1)
semasio.netMarketingFrequently Asked Questions
Does Semasio require cookie consent?
Yes. Semasio is a semantic audience targeting and data management platform. It sets tracking cookies to build interest and contextual profiles used for programmatic ad targeting. GDPR requires explicit marketing consent before Semasio can collect or process visitor data. It is classified under the marketing consent category.
What data does Semasio collect?
Semasio scripts analyze page content and user behavior to assign contextual and behavioral interest segments. It sets persistent cookies via semasio.net to store segment identifiers and sync with DSP partners. Cookie lifespans typically range from 30 to 90 days. No direct identity data is collected in standard deployments.
How does ConsentStack manage Semasio consent?
ConsentStack detects Semasio by its semasio.net domain and script fingerprints, classifying it as a marketing vendor. Semasio is blocked from setting cookies or building profiles until a visitor grants marketing consent. On consent, ConsentStack permits the script to load and begin contextual audience segmentation.
Related Vendors
Manage consent for Semasio
ConsentStack automatically detects and manages Semasio trackers so your site stays compliant with global privacy regulations.