--- title: Pixalate Releases Q2 2018 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 2018 ranking here. image: https://www.pixalate.com/hubfs/Blog_Media/Blog%20photos/gsti-us-top-10-june-2018.jpg --- [![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/gsti-us-top-10-june-2018.jpg) [Rankings](https://www.pixalate.com/blog/topic/rankings) | 2 min read # Pixalate Releases Q2 2018 Programmatic Seller Trust Indexes Written by [Pixalate](https://www.pixalate.com/blog/author/pixalate) Aug 23, 2018 9:59:21 AM Pixalate has released the Q2 2018 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. [![pixalate-seller-trust-indexes-cta](https://no-cache.hubspot.com/cta/default/2364596/1c9f7667-360b-4539-8f4e-90c68ce3cac5.png)](https://cta-redirect.hubspot.com/cta/redirect/2364596/1c9f7667-360b-4539-8f4e-90c68ce3cac5) ### **Q2 2018 Seller Trust Index highlights:** **GSTI** - **U.S.: **RhythmOne maintained the top spot, while PulsePoint rose two spots compared to its March 2018 ranking to secure the No. 2 ranking. Oath broke into the top five by climbing four spots. Rubicon Project rose eight spots to earn the No. 6 position. - **International: **Google AdExchange and RhythmOne were No. 1 and No. 2 again, while PubMatic rose two spots to earn the No. 3 ranking. District M (No. 4) and Oath (No. 5) round out the top five. **MSTI:** - **Global: **RockYou ranked No. 1, up from the No. 2 spot on the March 2018 MSTI. RhythmOne rose from No. 9 in March to No. 2 in June, while GroundTruth earned the No. 3 spot. YouAppi (up 11 spots to No. 4), Oath (up three spots to No. 5), and MobFox (up four spots to No. 6) also made significant gains quarter-over-quarter.  **VSTI:** - **U.S.: **RockYou claimed the No. 1 spot, rising from No. 6 in March. Telaria, Rubicon Project, OpenX, and Teads round out the top five. Oath rose five spots to earn the No. 10 position. - **International: **Taboola rose three spots to capture the No. 1 ranking. Rubicon Project rose from No. 7 to No. 5. Connatix earned the No. 6 spot, while Thirdpresence jumped from No. 20 in March to No. 7 in June.  ### [![gsti-us-top-10-june-2018](https://www.pixalate.com/hs-fs/hubfs/Blog_Media/Blog%20photos/gsti-us-top-10-june-2018.jpg?width=600&name=gsti-us-top-10-june-2018.jpg)](https://www.pixalate.com/sellertrustindex/global/#!global) [![june-2018-msti-top-10](https://www.pixalate.com/hs-fs/hubfs/Blog_Media/Blog%20photos/june-2018-msti-top-10.jpg?width=600&name=june-2018-msti-top-10.jpg)](https://www.pixalate.com/sellertrustindex/mobile/#!global) ### [![june-2018-vsti-top-10](https://www.pixalate.com/hs-fs/hubfs/Blog_Media/Blog%20photos/june-2018-vsti-top-10.jpg?width=600&name=june-2018-vsti-top-10.jpg)](https://www.pixalate.com/sellertrustindex/video/#!global) ### **[![pixalate-seller-trust-indexes-cta](https://no-cache.hubspot.com/cta/default/2364596/1c9f7667-360b-4539-8f4e-90c68ce3cac5.png)](https://cta-redirect.hubspot.com/cta/redirect/2364596/1c9f7667-360b-4539-8f4e-90c68ce3cac5)** ### **About Pixalate’s Seller Trust Indexes** Pixalate’s monthly 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. Released monthly, 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 a cross-channel fraud intelligence company that works with brands and platforms to prevent invalid traffic and improve ad inventory quality. ### 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 [← ‘Reference’ category has nearly 50% ad fraud (IVT) rate on smartphones](https://www.pixalate.com/blog/ad-fraud-ivt-mobile-web-publisher-category) [** ](https://www.pixalate.com/blog) Next Story [Pixalate Week in Review: August 20 - 24, 2018 →](https://www.pixalate.com/blog/programmatic-ad-fraud-news-week-in-review-august-24-2018) ## 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-june-2018#) # 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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