According to Pixalate’s May 2025 rankings, ‘Sudoku.com – Number Games’, ‘Ibis Paint X’, and ‘BeReal: Photo & Friends’ are among the top-ranked Apple App Store mobile apps; rakuten.com.jp was ranked No. 1 website for programmatic ad quality in Japan
London, June 04, 2025 (GLOBE NEWSWIRE) — Pixalate, the leading global platform for ad fraud protection, privacy, and compliance analytics, has released the May 2025 Publisher Trust Index (PTI) for Japan. This index evaluates websites and mobile apps across the Apple App Store and the Google Play Store.
The Publisher Trust Indexes are a comprehensive approach to quality measurement and monthly rankings of the world’s websites and apps, bringing unprecedented transparency to the open programmatic advertising ecosystem.
In addition to the report for Japan, Pixalate has also released Publisher Trust Indexes for Brazil, the United States (U.S.), the United Kingdom (UK), Germany, Spain, the Netherlands, and Canada.
Japan Website PTI Rankings (May 2025)
- rakuten.com.jp
- msn.com
- nature.com
Japan Mobile PTI Rankings (May 2025)
Apple App Store
- sudoku.com
- Ibis Paint X
- BeReal
Google Play Store
- Sudoku
- Duolingo
- SmartNews
Download the full rankings here.
Pixalate’s data science team analyzed over 35+ billion global open programmatic ad impressions across 14+ million websites, Google Play Store and Apple App Store mobile apps, and Connected TV (CTV) apps across Roku, Amazon Fire TV, Samsung Smart TV, and Apple TV app stores in May 2025 to compile the global Publisher Trust Indexes.
Pixalate uses its proprietary algorithms to measure quality metrics, including invalid traffic (IVT or ad fraud), Made For Advertising (MFA) risk, brand safety, ad density, viewability, reach, and more. The Publisher Trust Indexes spans rankings for 235+ countries across all four global regions: North America, EMEA, APAC, and LATAM, and provides breakdowns by 20+ different IAB taxonomy website categories. Pixalate’s methodology can be found at Publisher Trust Index: Methodology
Download the Publisher Trust Index Reports
- Canada
- Brazil
- U.S.
- UK
- Germany
- Spain
- Netherlands
- Japan
About Pixalate
Pixalate is a global platform specializing in privacy compliance, ad fraud prevention, and digital ad supply chain data intelligence. Founded in 2012, Pixalate is trusted by regulators, data researchers, advertisers, publishers, ad tech platforms, and financial analysts across the Connected TV (CTV), mobile app, and website ecosystems. Pixalate is accredited by the MRC for the detection and filtration of Sophisticated Invalid Traffic (SIVT). pixalate.com
Disclaimer
The Publisher Trust Index (PTI) reflects Pixalate’s opinions with respect to factors that Pixalate believes may be useful to the digital media industry. Our reports and indexes examine programmatic advertising activity on mobile apps, website domains and Connected TV (CTV) apps. Any insights shared are grounded in Pixalate’s proprietary technology and analytics, which Pixalate is continuously evaluating and updating. Any references to outside sources in the Indexes and herein should not be construed as endorsements. Pixalate’s opinions are just that, opinions, which means that they are neither facts nor guarantees. This report is not intended to impugn the standing or reputation of any person, entity or app. Per the MRC, “’Fraud’ is not intended to represent fraud as defined in various laws, statutes and ordinances or as conventionally used in UK Court or other legal proceedings, but rather a custom definition strictly for advertising measurement purposes. Also per the MRC, “‘Invalid Traffic’ is defined generally as traffic that does not meet certain ad serving quality or completeness criteria, or otherwise does not represent legitimate ad traffic that should be included in measurement counts. Among the reasons why ad traffic December be deemed invalid is it is a result of non-human traffic (spiders, bots, etc.), or activity designed to produce fraudulent traffic.”
CONTACT: Nina Talcott ntalcott@pixalate.com
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