--- title: Pixalate Releases March 2017 Seller Trust Indexes description: Pixalate’s Seller Trust Indexes evaluate and rank the quality and integrity of programmatic advertising sellers. Learn more about the March 2018 ranking. image: https://www.pixalate.com/hubfs/Blog_Media/Blog%20photos/gsti-top-10-march-2017.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/gsti-top-10-march-2017.png) [Rankings](https://www.pixalate.com/blog/topic/rankings) | 2 min read # Pixalate Releases March 2017 Seller Trust Indexes Written by [Pixalate](https://www.pixalate.com/blog/author/pixalate) May 3, 2017 10:02:45 AM Pixalate, Inc., the global leader in fraud protection and data intelligence, today released the March 2017 rankings in the [Global Seller Trust](https://www.pixalate.com/sellertrustindex/global/#!global) (GSTI), [Mobile Seller Trust](https://www.pixalate.com/sellertrustindex/mobile/#!global) (MSTI), and [Video Seller Trust](https://www.pixalate.com/sellertrustindex/video/#!global) (VSTI) Indexes. New this month we offer an enhanced version of the rankings with powerful, proprietary insights into Q1 2017 ad fraud trends, uncovered by Pixalate’s team of data scientists. Highlights include: ![q1-2017-fraud-rates-blog.jpg](https://www.pixalate.com/hs-fs/hubfs/Blog_Media/Blog%20photos/q1-2017-fraud-rates-blog.jpg?width=640&name=q1-2017-fraud-rates-blog.jpg) For a full look at Q1 2017 programmatic ad fraud rates across desktop, mobile, and video around the globe, [see our blog post](https://blog.pixalate.com/q1-2017-programmatic-ad-fraud-rates-pixalate-mobile-desktop-video). Below are some of the key takeaways regarding movers and shakers at the top of the rankings. - **GSTI highlights: **Sovrn remained the top seller for U.S. inventory in our March 2017 GSTI. Switch Concepts Limited rose two spots to No. 4, and PubMatic climbed three spots month-over-month to crack the top five. In our International GSTI, RhythmOne remained the top overall seller, while Google AdExchange skyrocketed 10 spots to earn the No. 2 ranking. - **MSTI highlights:** ONE by AOL and AppNexus remained the top two sellers on the MSTI in March. LKQD, InMobi, and Native Ads round out the top five. Smart RTB+ jumped 15 spots (from No. 27) to rank No. 12 in March 2017. - **VSTI highlights: **Tremor Video took the No. 1 spot as the top overall seller of programmatic video inventory in the U.S. LKQD climbed seven spots to the No. 7 position. Brightcom remained the No. 1 seller on our International VSTI, and Google AdExchange rose two spots to secure the No. 2 ranking. Notably, Teads made its debut on our VSTI in March 2017, ranking 7th internationally. [![gsti-top-10-march-2017.png](https://www.pixalate.com/hs-fs/hubfs/Blog_Media/Blog%20photos/gsti-top-10-march-2017.png?width=640&name=gsti-top-10-march-2017.png)](https://www.pixalate.com/sellertrustindex/#!global) Utilizing proprietary technology, the GSTI, MSTI, and VSTI each analyze more than 200 data points for over 100 billion monthly ad impressions and deliver ratings based upon inventory quality and ad performance, along with traditional reach and share of audience metrics. [![download GSTI button.png](https://www.pixalate.com/hs-fs/hubfs/GSTI/download%20GSTI%20button.png?width=374&height=78&name=download%20GSTI%20button.png)](https://www.pixalate.com/sellertrustindex/#!global) **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 upon 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, Inc. is a leading global intelligence platform and real-time fraud protection provider. Pixalate is a Media Rating Council-accredited vendor for display ad viewability. For more information, please visit [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 [← Oracle Buys Moat For $850M: Does This Change the Need for Third-Party Measurement?](https://www.pixalate.com/blog/oracle-buys-moat-850-million-third-party-measurement) [** ](https://www.pixalate.com/blog) Next Story [Q1 2017 Programmatic Ad Fraud Rates: 35% of US Programmatic Ad Impressions Were Fraudulent →](https://www.pixalate.com/blog/q1-2017-programmatic-ad-fraud-rates-pixalate-mobile-desktop-video) ## 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-seller-trust-index-march-2017#) # 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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