Home Business What are content delivery networks and why big websites crash together

What are content delivery networks and why big websites crash together

You don’t hear much about content-delivery networks, or CDNs, until they stop delivering. A global outage of major websites on June 8 that lasted about an hour was caused by problems at the San Francisco-based Fastly Inc. It took down websites including the New York Times, Bloomberg and even the UK government.

What is a content-delivery network?

It’s a kind of bridge between a or app and a user, helping to push data quickly around the internet on behalf of some of the most popular online CDN providers do that by hosting multiple servers and directing people who call up a web page to the nearest one geographically, rather than sending them back to the origin. Say a company’s is based in the US and gets traffic from France, it’s possible a CDN provider has a server in France that will direct users there.

Who uses them?

Such networks are popular with large, high-traffic websites and those offering big files to download. The list of those affected by the June 8 outage included Amaz­on, Spotify, Twitch, Shopify and Etsy, according to Down­detector, a that tracks service outages across the internet. Other major CDN providers include Cloudfare, Akamai and MaxCDN.

Why use them?

Along with speed and the greater ease of serving more customers simultaneously, CDNs are better placed to deliver content such as high-resolution video without disruption. They can also divert traffic to different servers if demand is high or there’s a sudden spike, allowing websites to keep going when they’re under strain. On the other hand, they are costly, do not have servers everywhere and, as evidenced by this latest episode, mean that are putting the fate of their websites in the hands of an outside party.

What happened with Fastly?

CDNs don’t fail very often but when they do, it can be spectacular. There are many similarities between this outage and an issue with rival Cloudflare last year. Cloudflare’s problems arose because — in simple terms — the company’s engineers tried to re-route internet traffic and everything exploded. Since website traffic is routed through a CDN’s servers, when the servers break so does everything else. These issues are also hard to prevent, and often happen when need to update their systems. Fastly attributed the incident to “a service configuration that triggered disruptions across our POPs (points of presence) globally”.

Was this a hack?

There is no evidence to suggest Fastly’s issues were the result of a malicious cyberattack. By contrast, all website system administrators know that network outages and downtime can happen, no matter the size of their hosting platform.

Dear Reader,

Business Standard has always strived hard to provide up-to-date information and commentary on developments that are of interest to you and have wider political and economic implications for the country and the world. Your encouragement and constant feedback on how to improve our offering have only made our resolve and commitment to these ideals stronger. Even during these difficult times arising out of Covid-19, we continue to remain committed to keeping you informed and updated with credible news, authoritative views and incisive commentary on topical issues of relevance.

We, however, have a request.

As we battle the economic impact of the pandemic, we need your support even more, so that we can continue to offer you more quality content. Our subscription model has seen an encouraging response from many of you, who have subscribed to our online content. More subscription to our online content can only help us achieve the goals of offering you even better and more relevant content. We believe in free, fair and credible journalism. Your support through more subscriptions can help us practise the journalism to which we are committed.

Support quality journalism and subscribe to Business Standard.

Digital Editor


Source link

Vishal Kumarhttps://visionaryblogs.com/
Hi..I'm Vishal Kumar I am currently study MCA from IGNOU. Web Development and Designing is my passion and I believe in helping people with my abilities and knowledge. I am learning these things from last 8 years and it feels like learning is a part of my life. Now, which makes this experience even more interesting. Feel free to reach out to me at https://visionaryblogs.com/ Have a nice stay here!
- Advertisment -


Samsung Galaxy M12 to Go on Sale in India for First Time Today: Price, Specifications, Offers

Samsung Galaxy M12 sale in India will begin today, March 18 at 12pm (noon). The smartphone was launched last week and this will...

Simone Biles Lands A Vault Move Will Leave You Stunned: Watch – Hollywood Life

One of the greatest athletes of all time just proved WHY she’s the GOAT. Simone Biles landed a ‘challenging’ and dangerous move –...

Nikon D6 Flagship DSLR Launched in India With 2 New Lenses in Nikkor Z Lineup

Nikon D6 has been launched in India, the company's latest flagship DSLR camera for professionals. At its heart, the new camera pack a...

Facebook, Google Sign Content-Supply Deal With Australia’s Nine Under New Licensing Regime

Australian broadcaster and publisher Nine Entertainment said it signed multi-year content-supply deals with Google and Facebook, harnessing tough new licencing laws to bolster profit.The...

Big Tech Critic Lina Khan Named by US President Joe Biden for Key Regulatory Post

US President Joe Biden on Monday named a prominent advocate of breaking up Big Tech firms to a key regulatory post, in a...