In the event you’re signing on with a content material supply community (CDN) supplier, you’ll in all probability see DNS as a part of the usual service bundle. It’s solely pure—to entry your content material delivered by the CDN, the Web has to know the place to ship the visitors. CDNs make it straightforward to configure and handle these DNS settings.
It’s straightforward to just accept DNS providers as a part of a CDN bundle. Most organizations which might be simply beginning out with a CDN in all probability don’t give DNS a second thought. They simply assume that the 2 providers ought to naturally go collectively.
From a administration perspective, co-location of DNS inside a content material supply service definitely is sensible. The power to configure and handle DNS alongside different CDN settings saves slightly little bit of effort and time, and who doesn’t wish to save effort and time?
Right here’s the difficulty: that seemingly minor DNS characteristic truly has a big impression on how a lot you pay for content material supply, the standard of what you ship and the resilience of what you’re delivering. Even that ease of use argument will get flipped on its head.
We’re greater than slightly biased right here, however that’s as a result of we imagine that for a lot of CDN customers the case for utilizing a separate DNS service is overwhelming.
All of it boils all the way down to this: in the event you’re utilizing a number of CDNs now or see your self utilizing a number of CDNs sooner or later, you’ll wish to keep away from getting locked right into a single supplier’s ecosystem and price construction. Doing this successfully requires a separate DNS system that works throughout suppliers, permitting you to choose the best choice at any explicit second.
Let’s take a look at a number of the advantages of utilizing an unbiased DNS supplier, together with:
- ease of administration
The DNS providing that comes bundled with CDN providers has one job: to make that CDN stickier. They make it doable to steer visitors elsewhere utilizing DNS, however it’s not precisely within the CDN’s curiosity to ship you wherever else—they solely receives a commission once they’re delivering your content material, in any case.
The price of content material supply varies drastically throughout completely different ISPs and geographical areas. The CDNs don’t use this knowledge to optimize visitors as it will impression their backside line.
Whereas the associated fee variations can appear miniscule for particular person queries, if you multiply these by the variety of queries all over the world and take a look at it over time, the whole provides up rapidly. The ability to steer traffic to the bottom value CDN utilizing DNS can find yourself saving you rather a lot.
Simply as the price of content material supply can change from second to second, there are vital variations in efficiency between CDNs. Right here’s a random pattern of actual person monitoring knowledge from a number of the main content material supply suppliers.
As you may see, the info is all over. At any given cut-off date, numerous CDNs may ship considerably higher (or worse) efficiency.
In the event you’re utilizing the default DNS that comes along with your CDN, it’s very tough to modify to a greater performing CDN in actual time. Doing that may require each the information of which CDN is the best choice and the power to quickly configure DNS to steer visitors between suppliers. CDN suppliers don’t present that knowledge.
Any CDN value its salt has a 100% uptime SLA. Even so, outages are inevitable and extra frequent than the suppliers care to confess. (Monday.com has a superb piece about this.)
When these outages happen, your content material will go offline in the event you don’t have a technique to simply fail over to a special service. As a result of the DNS that comes bundled with CDN packages is just designed to ship visitors to 1 place, it could actually depart you with out many choices when that one place goes darkish.
Utilizing an external DNS provider provides you the power to routinely change from one CDN to a different within the occasion of an outage, maintaining your content material on-line and the income flowing.
Bear in mind initially once we mentioned that managing your DNS settings from inside a CDN platform can prevent some effort and time? That’s true, however provided that you’re solely utilizing one CDN.
In the event you’re utilizing a number of CDNs, nevertheless, managing DNS could be a massive trouble. Any time you wish to shift visitors between suppliers, it’s important to go into every platform and manually reconfigure all of it. And let’s face it: no person desires to do this. Separate DNS configuration steps normally signifies that solely a significant change prompts any shift in wherever visitors goes. That’s how the CDN suppliers prefer it.
The advantages of a separate DNS layer
In the event you’re utilizing a number of CDNs, separating out the DNS layer helps you optimize for the perfect of every supplier by the magic of visitors steering.
Wish to optimize for value? A DNS supplier that sits aside out of your CDNs can analyze the info in actual time and routinely steer visitors to the most affordable choice for that specific second.
Wish to optimize for efficiency? Evaluation of geographies, ISPs, units and different components could be fed into an automatic DNS logic, which sends customers to the perfect CDN out there.
Wish to preserve your content material on-line within the face of periodic outages? Dedicated DNS providers can routinely fail over to whichever CDN is up and working at that second, providing seamless content material supply throughout suppliers.
Wish to save time on DNS administration? Utilizing a single, absolutely automated DNS management aircraft throughout CDNs provides you the ability to make needed adjustments with out the annoyance of handbook configurations.
Evidently, NS1 is designed to do all of this and extra. We leverage the ability of DNS so a number of the greatest, most consequential content material platforms on the market can ship the bottom value, best-performing, most resilient, best to handle operations out there. Our advanced traffic steering options make all of it doable.
Was this text useful?