15. 20 以上のサポートプラットフォーム
● iPhone
● iPad
● Apple TV
● Android Smartphone
● Android Tablet
● Android TV
● Fire Tablet
● Amazon Fire TV
● Google Chrome
● Mozilla Firefox
● Internet Explorer
● Microsoft Edge
● Apple Safari
● Google Chromecast
● Google Daydream View
● Amazon Echo
● LINE Clova Desk
● SONY BRAVIA
● Panasonic VIERA
● TOSHIBA REGZA
● LEOPALACE21 Life Stick
● CCCAIR Air Stick
● ...
67. The Cedexis Methodology 参照
● Availability
○ Availability also known as 'cold start probes' are intended to allow media organizations to
warm the caching services from the provider. Although there is a measurement value
associated with this probe, at a high level, the availability probe can be used by a media
organization to determine whether the provider is available or not.
● RTT/Latency/TTFB
○ This is the time for a single packet to be returned in response to an HTTP request.
(ResponseStart - RequestStart) using the Resource Timing API provides this metric.
● Throughput
○ The throughput is measured (kilobits per second) for an entire request and response based
on a large-test object download. File size (kilobytes) * 8 / (responseEnd - requestStart) using
the Resource Timing API.
https://blogs.akamai.com/2019/10/akamai-outlook-optimizing-edge-delivery-performance-and-monitoring.html
68. The Cedexis Methodology 参照
● Availability
○ Availability also known as 'cold start probes' are intended to allow media organizations to
warm the caching services from the provider. Although there is a measurement value
associated with this probe, at a high level, the availability probe can be used by a media
organization to determine whether the provider is available or not.
● RTT/Latency/TTFB
○ This is the time for a single packet to be returned in response to an HTTP request.
(ResponseStart - RequestStart) using the Resource Timing API provides this metric.
● Throughput
○ The throughput is measured (kilobits per second) for an entire request and response based
on a large-test object download. File size (kilobytes) * 8 / (responseEnd - requestStart) using
the Resource Timing API.
https://blogs.akamai.com/2019/10/akamai-outlook-optimizing-edge-delivery-performance-and-monitoring.html
93. プリフェッチによる分散
広告ブレーク A 広告ブレーク B
IN OUT OUTIN
時間 https://www.akamai.com/us/en/multimedia/documents/white-paper/go-live-white-paper.pdf
94. プリフェッチによる分散
広告ブレーク A 広告ブレーク B
IN OUT OUTIN
時間
広告ブレーク B
プリフェッチ
(ペーシング)
広告ブレーク C
プリフェッチ
(ペーシング)
https://www.akamai.com/us/en/multimedia/documents/white-paper/go-live-white-paper.pdf
95. プリフェッチによる分散
広告ブレーク A 広告ブレーク B
IN OUT OUTIN
時間
広告ブレーク B
プリフェッチ
(ペーシング)
広告ブレーク C
プリフェッチ
(ペーシング)
新規ユーザーのプリフェッチの期間
(既存ユーザーのプリフェッチは完了済)
https://www.akamai.com/us/en/multimedia/documents/white-paper/go-live-white-paper.pdf
96. プリフェッチによる分散
広告ブレーク A 広告ブレーク B
IN OUT OUTIN
時間 https://www.akamai.com/us/en/multimedia/documents/white-paper/go-live-white-paper.pdf
97. Server-Guided Ad Insertion (SGAI)
Hulu が実践している
Ad Insertion ソリューション
サーバーがユーザーの状態を持つのではなく
クライアントが自身の状態に応じて
広告をスティッチ