--- title: Pixalate Releases Q2 2019 Programmatic Seller Trust Indexes description: Pixalate’s Seller Trust Indexes evaluate and rank the quality and integrity of programmatic advertising sellers. Learn more about the Q2 2019 ranking here. image: https://www.pixalate.com/hubfs/Blog_Media/Blog%20photos/q2-2019-gsti-teaser.png --- [![pixalate-full-logo](https://www.pixalate.com/hs-fs/hubfs/Pixalate_Logos/pixalate-full-logo.jpg?width=150&height=60&name=pixalate-full-logo.jpg "pixalate-full-logo")](https://www.pixalate.com) Search **Menu** ** ** ![](https://www.pixalate.com/hubfs/Blog_Media/Blog%20photos/q2-2019-gsti-teaser.png) [Rankings](https://www.pixalate.com/blog/topic/rankings) | 2 min read # Pixalate Releases Q2 2019 Programmatic Seller Trust Indexes Written by [Pixalate](https://www.pixalate.com/blog/author/pixalate) Oct 7, 2019 9:00:00 AM Pixalate has released the Q2 2019 rankings for the Global Seller Trust ([GSTI](https://www.pixalate.com/sellertrustindex/global/#!global)), Mobile Seller Trust ([MSTI](https://www.pixalate.com/sellertrustindex/mobile/#!global)), and Video Seller Trust ([VSTI](https://www.pixalate.com/sellertrustindex/video/#!global)) programmatic Seller Trust Indexes. [![See the Indexes](https://no-cache.hubspot.com/cta/default/2364596/17456d26-0e98-42f0-ba2e-e48e85688ebc.png)](https://cta-redirect.hubspot.com/cta/redirect/2364596/17456d26-0e98-42f0-ba2e-e48e85688ebc) ### **Q2 2019 Seller Trust Index highlights:** **GSTI** - **U.S.: **RhythmOne maintained the top spot in Q2 2019. Verizon Media checked in at No. 2, while Google DoubleClick Ad Exchange was No. 3. PubMatic and Rubicon Project rounded out the top five - **International: **Verizon Media captured the top ranking, while Google DoubleClick Ad Exchange, Rubicon Project, RhythmOne, and OpenX all ranked in the top five **MSTI:** - **Global: **RhythmOne ranked first, followed by AdColony and OpenX **VSTI:** - **U.S.: **RhythmOne held the No. 1 spot in Q2 2019, while TripleLift, PulsePoint, SpotX, and Rubicon Project made up the rest of the top five - **International: **RhythmOne, Rubicon Project, Teads, PubMatic, and MoPub made up the top five spots in Q2 2019 ### [![q2-2019-gsti-teaser](https://www.pixalate.com/hs-fs/hubfs/Blog_Media/Blog%20photos/q2-2019-gsti-teaser.png?width=600&name=q2-2019-gsti-teaser.png)](https://pixalate.com/sellertrustindex/global/#!global) ### [![msti-index-teaser-q2-2019](https://www.pixalate.com/hs-fs/hubfs/Blog_Media/Blog%20photos/msti-index-teaser-q2-2019.png?width=600&name=msti-index-teaser-q2-2019.png)](https://pixalate.com/sellertrustindex/mobile/#!global) [![q2-2019-vsti-teaser](https://www.pixalate.com/hs-fs/hubfs/Blog_Media/Blog%20photos/q2-2019-vsti-teaser.png?width=600&name=q2-2019-vsti-teaser.png)](https://pixalate.com/sellertrustindex/video/#!global) ### **[![See the Indexes](https://no-cache.hubspot.com/cta/default/2364596/17456d26-0e98-42f0-ba2e-e48e85688ebc.png)](https://cta-redirect.hubspot.com/cta/redirect/2364596/17456d26-0e98-42f0-ba2e-e48e85688ebc)** ### **About Pixalate’s Seller Trust Indexes** Pixalate’s Global Seller Trust Index (GSTI), Mobile Seller Trust Index (MSTI), and Video Seller Trust Index (VSTI) are the worldwide standards in programmatic advertising quality ratings. The indexes evaluate and rank the quality and integrity of advertising networks and sellers across channels, platforms, and devices. Global quality ratings are based on an analysis of overall effectiveness assessing multiple factors, such as viewability, fraud, engagement, domain masking, network quality and more, in compliance with recognized industry standards.  To learn more about the methodology and to download the expanded list of top sellers, visit [http://www.pixalate.com/sellertrustindex.](https://www.pixalate.com/sellertrustindex) ### **About Pixalate** Pixalate is an omni-channel fraud intelligence company that works with brands and platforms to prevent invalid traffic and improve ad inventory quality. We offer the only system of coordinated solutions across display, app, video, and OTT/CTV for better detection and elimination of ad fraud. Pixalate is an MRC-accredited service for the detection and filtration of sophisticated invalid traffic (SIVT) across desktop and mobile web, mobile in-app, and OTT/CTV advertising. [www.pixalate.com](https://www.pixalate.com/) ### Search Blog Search ### Follow Pixalate ### Subscribe to our blog *By entering your email address and clicking Subscribe, you are agreeing to our [Terms of Use ](https://www.pixalate.com/terms)and [Privacy Policy.](https://www.pixalate.com/privacypolicy) Previous Story [← Pixalate Week in Review: September 30 - October 4, 2019](https://www.pixalate.com/blog/programmatic-ad-fraud-news-week-in-review-october-4-2019) [** ](https://www.pixalate.com/blog) Next Story [Criteo Partners with Pixalate to Provide Additional Protection for Advertisers’ Investments →](https://www.pixalate.com/blog/criteo-partnership-protect-advertising-investments) ## You May Also Like These Stories on Rankings [![](https://www.pixalate.com/hubfs/Blog%20Media/2026%20Covers%20and%20Images/OpenEPG%20index%20image.png) ](https://www.pixalate.com/blog/pixalate-unveils-openepg-index-monthly-rankings-of-top-100-streaming-tv-shows-based-on-open-programmatic-ctv-ad-spend-consumer-reach-across-small-large-screens) [Seller Trust Index](https://www.pixalate.com/blog/topic/seller-trust-index) ### [Pixalate Unveils OpenEPG™ Index: Monthly Rankings of Top 100 Streaming TV Shows Based on Open Programmatic CTV Ad Spend & Consumer Reach Across Small & Large Screens; 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Google AdExchange Top-Ranked 'Direct' Seller in the US](https://www.pixalate.com/blog/pixalate-releases-q1-2026-mobile-seller-trust-index-2.0) Jun 12, 2026 9:00:00 AM | 5 min read ** ### Subscribe to our blog *By entering your email address and clicking Subscribe, you are agreeing to our [Terms of Use ](https://www.pixalate.com/terms)and [Privacy Policy.](https://www.pixalate.com/privacypolicy) ![pixalate-logo-red-small](https://www.pixalate.com/hs-fs/hubfs/2018NewTemplate/pixalate-logo-red-small.png?width=208&name=pixalate-logo-red-small.png "pixalate-logo-red-small") ** By entering your email address and clicking Subscribe, you are agreeing to our [Terms of Use](https://www.pixalate.com/terms) and [Privacy Policy](https://www.pixalate.com/privacypolicy) Products [Analytics](https://www.pixalate.com/products/analytics) [Blocking](https://www.pixalate.com/products/blocking) [Media Rating Terminal](https://www.pixalate.com/products/mrt) [Publisher Trust Indexes](https://www.pixalate.com/rankings/?group=app&reportId=publisherTrustIndex) [Seller Trust Indexes](https://www.pixalate.com/rankings/?group=app&reportId=publisherTrustIndex) [IoT Device Rankings](https://www.pixalate.com/rankings/?group=app&reportId=iotDeviceReach) Resources [Blog](https://blog.pixalate.com/) [Press](https://www.pixalate.com/press) [Careers](https://www.pixalate.com/jobs) [Team](https://info.pixalate.com/pixalate-leadership-team) Contact Email [** sales@pixalate.com ](mailto:sales@pixalate.com) [** privacy@pixalate.com ](mailto:privacy@pixalate.com) US: [** +1 888 749 2528 ](tel:+1%20888%20749%202528) EU: [** +44 (0)800 011 2050 ](tel:+44%20(0)800%20011%202050) Slack: [Join ATSAPI Slack Channel ](https://atsapi-pixalate.slack.com/join/shared_invite/zt-10dtow5cj-OEtlNr5yzJkrZMQUqcEEow#/shared-invite/email) Offices Global Offices US 1775 Greensboro Station Place, Suite 425, McLean, VA 22102 UK 20 North Audley Street London, W1K 6WE, United Kingdom EU 10 Earlsfort Terrace Dublin 2, D02 T380, Ireland Singapore 10 Anson Road, #22-02 International Plaza, Singapore 079903 [![facebook](https://www.pixalate.com/hubfs/footer/icons/facebook.png) ](https://www.facebook.com/pixalate) [![x](https://www.pixalate.com/hubfs/footer/icons/twitter-x.png) ](https://twitter.com/pixalateinc) [![linkedin](https://www.pixalate.com/hubfs/footer/icons/linkedin.png) ](https://www.linkedin.com/company/pixalate) ![wechat](https://www.pixalate.com/hubfs/footer/icons/wechat.png) [![slack](https://www.pixalate.com/hubfs/footer/icons/slack.png) ](https://atsapi-pixalate.slack.com/join/shared_invite/zt-10dtow5cj-OEtlNr5yzJkrZMQUqcEEow#/shared-invite/email) [Terms of Use](https://www.pixalate.com/terms) [Privacy Policy](https://www.pixalate.com/privacypolicy) [GDPR Compliance](https://www.pixalate.com/gdpr) Disclaimer Copyright © 2025 Pixalate [Back to top **](https://www.pixalate.com/blog/global-mobile-video-seller-trust-index-q2-2019#) # Disclaimer Disclaimer: The content of this page reflects Pixalate’s opinions with respect to the factors that Pixalate believes can be useful to the digital media industry. 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