519 sites tagged mostly japan, largest first. Add a second tag, a network or a traffic floor to narrow it.
PublisherPlatformCategory
docomo.ne.jp株式会社オールアバウト495,916,923#89$4.9Mcomputers_electronics_and_technology/telecommunications
auone.jpmediba Inc.345,361,166#131Next.js$1.8Mnews_and_media
pixiv.net294,593,737#95$1.5M2007 19yarts_and_entertainment/visual_arts_and_design
ameblo.jp23091946467_ameblo.jp184,098,349#226Next.js$1.8Mcomputers_electronics_and_technology/social_networks_and_online_communities
trilltrill.jpdely, Inc.155,859,297#348$1.1Mfood_and_drink/food_and_drink
gamewith.jp株式会社GameWith101,025,890#485$703Kgames/video_games_consoles_and_accessories
itmedia.co.jp98,380,247#574$986Kcomputers_electronics_and_technology/computers_electronics_and_technology
blog.jpflaokiba84,926,476#588$844Kcomputers_electronics_and_technology/web_hosting_and_domain_names
newsdig.tbs.co.jp静岡放送株式会社81,981,839$466Kjobs_and_career/jobs_and_employment
oricon.co.jp株式会社oricon ME78,256,225#668$435Karts_and_entertainment/arts_and_entertainment
livedoor.comlivedoor.com75,569,172#675$402K1999 26ynews_and_media
game8.jpArii71,382,631#735$498Kgames/video_games_consoles_and_accessories
asahi.com65,155,668#879$358K1995 31ynews_and_media
navitime.co.jp株式会社ナビタイムジャパン56,661,134#961$492Ktravel_and_tourism/travel_and_tourism
nishinippon.co.jpnishinippon.co.jp55,836,153#1,203Next.js$300Knews_and_media
mynavi.jp51,721,823#803WordPress$469Kbusiness_and_consumer_services/business_services
kurashiru.comdely, Inc.40,890,348#1,767Vue.js$295K2015 11yfood_and_drink/cooking_and_recipes
wikiwiki.jp株式会社ウキウキ39,820,929#1,166$233Kreference_materials/reference_materials
sponichi.co.jp38,113,267#1,546$207Knews_and_media
bunshun.jpbunshun.jp37,137,013#1,189$200Knews_and_media
pia.jpぴあネクストスコープ株式会社34,519,846#917$254Ke-commerce_and_shopping/tickets
mamastar.jp株式会社インタースペース33,791,725#793$182Knews_and_media
atwiki.jp30,708,378#1,848$221Kgames/games
mainichi.jp株式会社毎日新聞社29,567,350#2,182$156Knews_and_media
suki-kira.com29,087,744#1,626$160K2018 7yarts_and_entertainment/arts_and_entertainment
p-world.co.jp22762999955_eriones.com26,543,887#1,814$141Kgambling/gambling
natalie.mu25,899,686#2,543$140Karts_and_entertainment/arts_and_entertainment
oceans-nadia.com25,861,139#2,764Next.js$192K2012 13yfood_and_drink/cooking_and_recipes
bangumi.org株式会社IPG23,845,339#2,731$127K2015 11yarts_and_entertainment/tv_movies_and_streaming
uta-net.comPageone Media23,709,846#2,488$130K2000 25yarts_and_entertainment/music
lit.linkTieUps株式会社22,399,321#3,659Next.js$220K2020 5ycomputers_electronics_and_technology/graphics_multimedia_and_web_design
kamigame.jp株式会社Lighthouse Studio21,443,721#2,933WordPress$130Kgames/video_games_consoles_and_accessories
ekitan.com株式会社駅探19,987,883#2,711$119K1999 26yreference_materials/maps
appmedia.jp19,623,475#3,319WordPress$179Kcomputers_electronics_and_technology/computers_electronics_and_technology
g123.jpCTWINC19,139,008#4,897Next.js$146Kgames/video_games_consoles_and_accessories
minkara.carview.co.jp19,070,474$151Kvehicles/automotive_industry
gigafile.nu株式会社ギガファイル17,934,490#3,361$174K2010 16ycomputers_electronics_and_technology/web_hosting_and_domain_names
mdpr.jp株式会社ネットネイティブ17,848,260#3,825$98Karts_and_entertainment/arts_and_entertainment
googirl.jp株式会社life is17,491,760#2,904WordPress$96Karts_and_entertainment
nana-press.com22762999955_eriones.com16,781,923#4,313WordPress$96K2019 7ygambling/gambling
aeoncinema.com16,626,783#2,877$92K2013 13yarts_and_entertainment/tv_movies_and_streaming
benesse.ne.jpEnhance (Benesse)16,576,058#2,876$169Kscience_and_education/education
goguynet.jp22762999955_eriones.com16,526,014#4,583WordPress$91Karts_and_entertainment/arts_and_entertainment
blog.esuteru.comflaokiba15,765,802$83Knews_and_media
jin115.comflaokiba15,368,473#4,890$112K2009 16ygames/video_games_consoles_and_accessories
jisin.jpjisin.jp15,249,411#3,875WordPress$86Karts_and_entertainment/arts_and_entertainment
1geki.jp1geki.jp14,627,354#4,588WordPress$82Kgambling/gambling·Page 1 of 11·519 publishers
Tags come from the domain, the homepage title and the search terms SimilarWeb measures driving the traffic.