{"id":8833,"date":"2016-08-09T12:43:00","date_gmt":"2016-08-09T12:43:00","guid":{"rendered":"https:\/\/tenjin.com\/?p=8833"},"modified":"2026-04-14T07:57:51","modified_gmt":"2026-04-14T07:57:51","slug":"idfa-sends-all-zeros-on-ios-10-devices","status":"publish","type":"post","link":"https:\/\/tenjin.com\/ja\/blog\/idfa-sends-all-zeros-on-ios-10-devices\/","title":{"rendered":"IDFA\u304ciOS 10\u30c7\u30d0\u30a4\u30b9\u306b\u3059\u3079\u3066\u306e\u30bc\u30ed\u3092\u9001\u4fe1"},"content":{"rendered":"<p class=\"wp-block-paragraph\">\u6570\u30f6\u6708\u524d\u3001Apple\u306f\u3001iOS 10\u304c\u305d\u306e<code data-no-translation=\"\" data-no-auto-translation=\"\">advertisingIdentifer<\/code>\u30c7\u30d0\u30a4\u30b9\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u5e83\u544a\u8ffd\u8de1\u306e\u5236\u9650\u30d5\u30e9\u30b0\u3092<code data-no-translation=\"\" data-no-auto-translation=\"\">ON<\/code>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tenjin\u306e\u96c6\u8a08\u30c7\u30fc\u30bf\u306b\u3088\u308b\u3068\u3001\u3053\u308c\u306f\u3001\u7279\u5b9a\u306e\u30c7\u30d0\u30a4\u30b9\u306b\u304a\u3044\u3066IDFA\u304c\u4e00\u610f\u3067\u306f\u306a\u3044\u30c7\u30d0\u30a4\u30b9\u304c\u7d0415%\u306b\u76f8\u5f53\u3059\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/s3.amazonaws.com\/tenjin-blog\/2016\/Aug\/Screen%2BShot%2B2016-08-08%2Bat%2B9.10.21%2BAM.png?ssl=1\" alt=\"\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u79c1\u306e\u2026\u3067\u8ff0\u3079\u305f\u3088\u3046\u306b\u3001&nbsp;<a href=\"https:\/\/blog.tenjin.io\/how-tenjins-cookie-technology-will-change-tracking-on-mobile-ads\/?__hstc=105908124.1a56e3730f6f13e43c32fb5b1a8ca535.1695012124209.1695095732931.1695118029670.8&amp;__hssc=105908124.90.1695118029670&amp;__hsfp=2360007836\">\u30af\u30c3\u30ad\u30fc\u306b\u95a2\u3059\u308b\u524d\u56de\u306e\u6295\u7a3f<\/a>, \u3001IDFA\u306f\u3001\u5e83\u544a\u4e3b\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3092\u6b63\u78ba\u306b\u8ffd\u8de1\u3059\u308b\u305f\u3081\u306e\u4e3b\u8981\u306a\u624b\u6bb5\u306e\u4e00\u3064\u3067\u3059\u3002\u7d0415%\u53f0\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u56fa\u6709\u306e\u8b58\u5225\u5b50\u3092\u6301\u305f\u306a\u304f\u306a\u308b\u305f\u3081\u3001\u3053\u308c\u3089\u306e\u30c7\u30d0\u30a4\u30b9\u306f\u3082\u306f\u3084\u6b63\u78ba\u306b\u8ffd\u8de1\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30e6\u30fc\u30b6\u30fc\u3084\u5e83\u544a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u7528\u306e\u30af\u30c3\u30ad\u30fc\u3092\u8a31\u53ef\u3057\u3066\u3044\u308b\u5834\u5408\u3001Tenjin\u306e\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306f\u3053\u306e\u5f71\u97ff\u3092\u53d7\u3051\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u3067\u30af\u30c3\u30ad\u30fc\u304c\u91cd\u8981\u306b\u306a\u3063\u3066\u304d\u307e\u3059\u3002\u30af\u30c3\u30ad\u30fc\u3092\u6709\u52b9\u306b\u3057\u305f\u72b6\u614b\u3067URL\u30ea\u30f3\u30af\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u5e83\u544a\u4e3b\u306f\u30a2\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u30c7\u30fc\u30bf\u306e\u9001\u4fe1\u3092\u7d99\u7d9a\u3067\u304d\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u3068\u5e83\u544a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4e21\u65b9\u304c\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u7528\u306e\u30af\u30c3\u30ad\u30fc\u3092\u8a31\u53ef\u3057\u3066\u3044\u308b\u5834\u5408\u3001Tenjin\u306e\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306fiOS\u3084IDFA\u306e\u8a2d\u5b9a\u306e\u5f71\u97ff\u3092\u53d7\u3051\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9577\u5e74\u306b\u308f\u305f\u308b\u30a6\u30a7\u30d6\u3067\u306e\u5229\u7528\u5b9f\u7e3e\u304c\u793a\u3059\u3088\u3046\u306b\u3001\u30af\u30c3\u30ad\u30fc\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3092\u4fdd\u8b77\u3057\u3064\u3064\u3001\u30de\u30fc\u30b1\u30bf\u30fc\u304c\u5e83\u544a\u8cbb\u306e\u52d5\u5411\u3092\u8ffd\u8de1\u30fb\u628a\u63e1\u3059\u308b\u305f\u3081\u306e\u3001\u30b7\u30f3\u30d7\u30eb\u304b\u3064\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u6280\u8853\u3067\u3059\u3002\u79c1\u305f\u3061\u306f\u3001\u30af\u30c3\u30ad\u30fc\u304c\u30e2\u30d0\u30a4\u30eb\u5e83\u544a\u306e\u672a\u6765\u306b\u3068\u3063\u3066\u6709\u529b\u306a\u89e3\u6c7a\u7b56\u3067\u3042\u308b\u3068\u78ba\u4fe1\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u66f4\u65b0\u65e5\uff1a2016\u5e749\u67086\u65e5<\/strong><br>\u2014 \u4ee5\u4e0b\u306e\u898f\u5b9a\u306b\u57fa\u3065\u304d\u3001\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u306e iOS SDK \u304b\u3089\u3001SafariViewController \u7d4c\u7531\u3067 Cookie \u3092\u8aad\u307f\u53d6\u308b\u6a5f\u80fd\u3092\u524a\u9664\u3057\u307e\u3057\u305f\u3002&nbsp;<a href=\"https:\/\/developer.apple.com\/app-store\/review\/guidelines\/#data-collection-and-storage\">Apple\u306eApp Store\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>A few months ago, Apple announced that iOS 10 will send all zeros for itsadvertisingIdentiferfield when the device\u2019s user sets their limit ad tracking flag toON. According to Tenjin\u2019s aggregate records, this represents ~15% of devices where IDFA will not be unique for a specific device. As I noted in my&nbsp;last post about cookies, the&#8230;<\/p>","protected":false},"author":8,"featured_media":8799,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8],"tags":[],"class_list":["post-8833","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mobile-marketing-trends"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>IDFA Sends All Zeros | Tenjin<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tenjin.com\/ja\/blog\/idfa-sends-all-zeros-on-ios-10-devices\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"IDFA Sends All Zeros | Tenjin\" \/>\n<meta property=\"og:description\" content=\"A few months ago, Apple announced that iOS 10 will send all zeros for itsadvertisingIdentiferfield when the device\u2019s user sets their limit ad tracking flag toON. According to Tenjin\u2019s aggregate records, this represents ~15% of devices where IDFA will not be unique for a specific device. As I noted in my&nbsp;last post about cookies, the...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/tenjin.com\/ja\/blog\/idfa-sends-all-zeros-on-ios-10-devices\/\" \/>\n<meta property=\"og:site_name\" content=\"Tenjin\" \/>\n<meta property=\"article:published_time\" content=\"2016-08-09T12:43:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-14T07:57:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/tenjin.com\/wp-content\/uploads\/2023\/09\/61921952-1512092818773.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"666\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Chris Farm\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@TenjinMMP\" \/>\n<meta name=\"twitter:site\" content=\"@TenjinMMP\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"Chris Farm\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"2\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/tenjin.com\\\/blog\\\/idfa-sends-all-zeros-on-ios-10-devices\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/tenjin.com\\\/blog\\\/idfa-sends-all-zeros-on-ios-10-devices\\\/\"},\"author\":{\"name\":\"Chris Farm\",\"@id\":\"https:\\\/\\\/tenjin.com\\\/#\\\/schema\\\/person\\\/2a08b3eb1707d172ac3d5f44e45f0b58\"},\"headline\":\"IDFA Sends All Zeros on iOS 10 Devices\",\"datePublished\":\"2016-08-09T12:43:00+00:00\",\"dateModified\":\"2026-04-14T07:57:51+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/tenjin.com\\\/blog\\\/idfa-sends-all-zeros-on-ios-10-devices\\\/\"},\"wordCount\":223,\"publisher\":{\"@id\":\"https:\\\/\\\/tenjin.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/tenjin.com\\\/blog\\\/idfa-sends-all-zeros-on-ios-10-devices\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/tenjin.com\\\/wp-content\\\/uploads\\\/2023\\\/09\\\/61921952-1512092818773.jpeg\",\"articleSection\":[\"Mobile Marketing Trends\"],\"inLanguage\":\"ja\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/tenjin.com\\\/blog\\\/idfa-sends-all-zeros-on-ios-10-devices\\\/\",\"url\":\"https:\\\/\\\/tenjin.com\\\/blog\\\/idfa-sends-all-zeros-on-ios-10-devices\\\/\",\"name\":\"IDFA Sends All Zeros | Tenjin\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/tenjin.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/tenjin.com\\\/blog\\\/idfa-sends-all-zeros-on-ios-10-devices\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/tenjin.com\\\/blog\\\/idfa-sends-all-zeros-on-ios-10-devices\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/tenjin.com\\\/wp-content\\\/uploads\\\/2023\\\/09\\\/61921952-1512092818773.jpeg\",\"datePublished\":\"2016-08-09T12:43:00+00:00\",\"dateModified\":\"2026-04-14T07:57:51+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/tenjin.com\\\/blog\\\/idfa-sends-all-zeros-on-ios-10-devices\\\/#breadcrumb\"},\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/tenjin.com\\\/blog\\\/idfa-sends-all-zeros-on-ios-10-devices\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\\\/\\\/tenjin.com\\\/blog\\\/idfa-sends-all-zeros-on-ios-10-devices\\\/#primaryimage\",\"url\":\"https:\\\/\\\/tenjin.com\\\/wp-content\\\/uploads\\\/2023\\\/09\\\/61921952-1512092818773.jpeg\",\"contentUrl\":\"https:\\\/\\\/tenjin.com\\\/wp-content\\\/uploads\\\/2023\\\/09\\\/61921952-1512092818773.jpeg\",\"width\":1000,\"height\":666,\"caption\":\"businessman holding cellphone with digital world map interface\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/tenjin.com\\\/blog\\\/idfa-sends-all-zeros-on-ios-10-devices\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/tenjin.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"IDFA Sends All Zeros on iOS 10 Devices\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/tenjin.com\\\/#website\",\"url\":\"https:\\\/\\\/tenjin.com\\\/\",\"name\":\"Tenjin\",\"description\":\"Growth Made Simple\",\"publisher\":{\"@id\":\"https:\\\/\\\/tenjin.com\\\/#organization\"},\"alternateName\":\"Tenjin - 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