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Is your website ready for traffic spike?

Akshay Ranganath ( akrangan@akamai.com) , Enterprise Architect. Is your website ready for traffic spike?. Agenda. Traffic Spike - impact on site and brand Performance Downtime Traffic Trends in India Plan with Akamai: Caching Offload through Netstorage Failover Custom solution

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Is your website ready for traffic spike?

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  1. Akshay Ranganath (akrangan@akamai.com), Enterprise Architect Is your website ready for traffic spike?

  2. Agenda • Traffic Spike - impact on site and brand • Performance • Downtime • Traffic Trends in India • Plan with Akamai: • Caching • Offload through Netstorage • Failover • Custom solution • Shopper Prioritization Application • Managing 3rd Parties • Q&A

  3. Why performance matters?

  4. Why downtime matters as well?

  5. Trends: Online Traffic in India Travel: 35 million to 70 million by 2015 Retail: 51 million to 100 million by 2015 Travel and Retail each with a potential of $10 billion by 2015 Source: McKinsey, comScore & Assocham study Online shopping ~ 250% during this festive season at various metros. Traffic spike during the week of 2 October onwards right through till Diwali.

  6. What causes poor performance?

  7. How can we help? • Caching • Let Akamai serve most commonly accessed resources • Free up your origin to do the revenue / processor intensive tasks • Offload • Move marketing collateral and static objects to Akamai • Alerting & Monitoring • See what’s happening in real time • Monitor for warnings and hints on data center overload • Fail gracefully • Avoid bad publicity • Avoid losing revenue due to lost customers • Cut the flab • 3rd parties can be drag - so optimize / reduce them !

  8. Caching • Honor cache control headers from origin • Carefully set cache-control expires headers at origin • Akamai will honor the setting

  9. Caching (continued) • Design URLs for cacheability • URLs should indicate a pattern for caching • Not very helpful! • Category page: http://akamai-t-shirts.com/clothing-accessories-men/t/11004 • PDP Page: http://akamai-t-shirts.com/nostra-crew-neck-purple-t-shirt/p/CACMI5HDFIGXSZKU • Helpful URLs for Akamai: • Category: http://www.akamaiflowershop.com/product/category/?path=24 • PDP: http://www.akamaiflowershop.com/product/product/?path=24&product_id=4

  10. Caching (continued) • Segregate content for generic and specific users • User type identified by cookie • Rules on Akamai to cache for generic users; bypass cache for others. e.g.: • logged in users • users with items in cart • Separate personalized content from base page • Use Ajax for personalized content • Or use Edge Site Includes

  11. Caching - case study • Prune query strings from cache key: • jsessionid path parameter is useless in most cases • removing this provided an offload close to 100% for home pages

  12. Alerting & Monitoring • Set alerts on the portal • Alerts will warn you of impending issues like origin failure, high traffic or some untoward occurrence • Create a team mailing list instead of individuals • This ensures there is no single point of failure

  13. Failover • Origin failure is not an IF but WHEN! • Failure can occur due to: • Traffic spike / Attacks • Bot activity • Server Patch • Electricity outage, Cable cut • During the outage, would you prefer to see: • This page • Or this one?

  14. Case-Study - Failover • Failover is about planning for outage You can leverage Akamai to : • route errors to a different data center • show a static page from Netstorage

  15. Customized Solutions - SPA Shopper Prioritization Application • ensure QoS for valuable customers by protecting a customer's origin web infrastructure from being overloaded by flash crowds that exceed capacity • throttles origin traffic and gradually allows users as origin capacity increases • throttled users are kept in a waiting room, which is a configurable area with having any type of branded message

  16. Other things to remember • 3rd parties can cause a drag. • “one tag to rule them all!” • http://www.aaronpeters.nl/blog/google-plus1-button-performance-review • Akamai study: http://www.slideshare.net/guypod/third-party-performance • Optimize your assets • Google pagespeed, Strangeloop • Yotta best practices • http://www.yottaa.com/blog/bid/296075/Infographic-The-Ultimate-Checklist-for-Optimizing-Web-Performance • Akamai Aqua ION • And finally, consider: • Testing: Have you actually load tested your site for stability under planned load? • Security: What if there is an attack on the most important day of your campaign?

  17. Questions?

  18. Notes • Akamai ecommerce blog: https://blogs.akamai.com/commerce/ • Twitter feed: #AkamaiHoliday

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