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Case Study - Trainline

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dyn.com @dyn page 1 Oracle Dyn Case Study: TRAINLINE Total DNS Traffic Control Is a Must for Leading UK Ticket Retailer Across Europe, rail travel enables both locals and tourists to visit various countries without dealing with the hassle of airlines. But while travel is meant to be fun, booking travel can often be the exact opposite. Thetrainline.com aims to ease that frustration. Launching the website in 1999, they are the leading online independent retailer of rail tickets for travel in Great Britain by tickets sold and provide journey planning and booking solutions to a variety of customers throughout Great Britain. Today Trainline receives 45 million monthly visits, with over three-quarters of those coming from mobile, and processes £2.3 billion ticket sales each year. It sells in 24 countries, is connected to 86 carriers (20 of those are still in the UK) and continues to add more. They also build, support, and manage online retail platforms and provide back office, retailing, and marketing services for TOCs (Train Operating Companies). As Trainline's business has grown, their need for website reliability increased with it. Trainline were using a traditional domain name provider's DNS service, but they wanted more control and management of their DNS overall, especially CNAMEs, and the ability to failover to secondary data centres. With their existing provider they could not get their TTL (time-to-live) to less the six hours which as a failover window was just too high. This prevented them from scaling to implement multiple data centres. "By using CNAME, it allows us to send traffic to our third-party multivariant testing tool. If there's an issue with their platform, we wanted the ability to failover back to our systems," Anant East, head of architecture and infrastructure, explained. "As we embrace more cloud offerings and expand internationally, we wanted more control over DNS. "…we set up half a dozen language subdomains within minutes." Customer Challenge Need for website reliability increased as business grew. Wanted more control of their DNS overall, especially CNAMEs. Required the ability to failover to secondary data centres. Solution Managed DNS Ability to configure low TTLs Both an API and a very easyto-use GUI Results Can quickly create new subdomains and maintain them. Made a very smooth transition in days for over 150 domains.

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