AWS Shield Advanced vs Azure DDoS Protection: What Each Tier Covers

When you are comparing AWS Shield Advanced and Azure DDoS Protection, the useful surprise is how little there is to choose between them at the level people usually argue about.

Both absorb terabit-scale volumetric floods at a global backbone you never see. Both are a paid tier bolted onto a free, always-on Layer 3/4 baseline. Both defend only their own cloud's resources, and only the ones you deliberately put in scope. Both hand the entire application layer to a separate WAF product you buy, configure, and enforce yourself. Both add a human response team gated on preconditions, and a cost-protection credit that is a claim rather than an automatic refund.

They are, structurally, close to mirror images. So the comparison that matters is not "which one stops more traffic." It is four questions where the two line up almost point for point, and one gap they both leave open.

This compares the two products. Testing your own deployment on each is a separate exercise, covered for AWS and Azure respectively, and both are instances of structured DDoS testing. The neighbouring comparison, AWS Shield Advanced vs Cloudflare, sets a cloud-native product against a third-party proxy edge rather than against a second cloud-native one.

At a glance: AWS Shield Advanced vs Azure DDoS Protection

Neither column is the right one. The column you want is decided almost entirely by where your resources already live, because each product defends its own estate and nothing else.

The naming, first, because the tiers do not line up one to one

A quick vocabulary pass, since the two vendors count their tiers differently and the marketing names have shifted.

On AWS there are two tiers: Shield Standard (free, automatic, everywhere) and Shield Advanced (the paid subscription).

On Azure there are three: DDoS Infrastructure Protection (the free, automatic baseline), and two paid tiers, DDoS Network Protection and DDoS IP Protection. Network Protection is the plan-per-VNet model; IP Protection is a newer per-address tier for smaller footprints. The older single name "DDoS Protection Standard" has been split into these two.

So "Azure DDoS Protection Standard" in a search box maps to Network Protection in practice, and that is the tier that sits opposite Shield Advanced. The per-address IP Protection tier has no exact AWS analogue; it is closest to enrolling a single Elastic IP.

Question one: what does "protected" actually cover?

This is where the mirror is clearest, and where both products fail in the same way.

Neither tier protects an account or a subscription wholesale. Coverage is something you attach, resource by resource, and anything you did not attach it to falls back to the free baseline.

On AWS, Shield Advanced is enrolled per resource. On Azure, a Network Protection plan attaches to a virtual network and reaches the public IPs inside it, while IP Protection is toggled on one address at a time. The mechanics differ; the consequence is identical. A public endpoint that nobody enrolled, a load balancer stood up in a VNet with no plan, an Elastic IP added six months after rollout, gets the free tier and nothing more.

The free baseline is not nothing. It will absorb a platform-scale flood at the backbone. What it will not give you is resource-level telemetry, a mitigation policy tuned to your traffic, or the response and cost benefits you are paying the upper tier for. Whether the address you care about sits under the paid tier is a decision someone had to make and act on; existing on the account enrolls it in nothing.

That single fact drives the most common finding on both clouds: the scope on paper is wider than the scope in the account. Confirming the enrolled set matches the real public attack surface is the first job of an AWS or Azure DDoS test, and separately, that every hostname even routes through the protected path at all is its own check, covered in is your protection actually in the path.

Question two: what does the paid tier buy over the free one?

Strip the names away and the paid tiers add the same four things on both clouds.

Resource-level mitigation and telemetry. The free baseline defends the platform; the paid tier defends your specific endpoint and shows you what happened to it. On AWS this is inline visibility and CloudWatch attack metrics; on Azure it is per-resource mitigation and attack telemetry through Azure Monitor. Same idea, different dashboard.

Adaptive tuning. Both fit their thresholds to your own traffic instead of to a fixed number, and both need a learning period before that fit is worth anything. The per-cloud mechanics differ and are drawn out in the Azure and Shield Advanced testing posts; what they share is a cold-start window on any freshly protected resource, when the thresholds are still generic and an attack sized to sit under them slips by.

A human response path. Covered below.

Cost protection. Also below.

What the paid tier does not buy, on either cloud, is the application layer. That is question five, and it is the one most likely to be assumed away.

Question three: the response team, and what it is gated on

Both vendors offer access to their own DDoS engineers during an active incident. On AWS that is the Shield Response Team (SRT, the team formerly called the DRT); on Azure it is DDoS Rapid Response (DRR). Both author or apply mitigations on your behalf when your own controls are outmatched by a novel vector.

Both are also gated, and the gate is the part that surprises people mid-incident.

The AWS team is reachable in time only if the groundwork, a qualifying support plan plus a standing engagement or access grant, was laid before the attack began; that precondition chain is taken apart elsewhere. Azure Rapid Response comes with Network Protection, so the gate there is simply being on the tier and having walked the engagement path before you need it.

The deeper point is the same on both, and it hides behind the org-chart differences. Both are human loops, and humans are slow next to a flood: engaging, making sense of an unfamiliar vector, and writing a rule that spares your own users all cost minutes you may not have. A response team answers for the attack your configuration failed to anticipate; it does not stand in for having a configuration, and the value of "24/7 experts" is nil until you have proven the call reaches someone who can act. That proof is an operational drill, not a traffic test, and it belongs to the human half of a readiness assessment.

Question four: cost protection is a claim on both

Both paid tiers include cost protection: credits against the resource charges a qualifying attack drives, the autoscaling, the data transfer, the extra capacity the flood forced you to spin up. On AWS these are Shield Advanced cost-protection credits; on Azure it is the cost-protection benefit of Network Protection. Genuinely useful, and routinely misread the same way on both clouds.

The credit is not automatic. It is claimed, against a documented attack, inside a window the vendor sets, and only for the scaling of resources the tier actually protected. It does not erase the month's bill, and it does nothing for the revenue you lost while degraded, the penalties you owe your own customers, or costs the attack drove somewhere the protection never reached.

So the check on both clouds is organisational rather than technical: is there a named owner for the claim who knows the deadline and the resources in scope. Leave that unassigned and the credit becomes money you were entitled to and never went back for.

Question five: the shared gap, neither covers L7 by itself

This is the one that matters most and the one the product names hide.

Neither AWS Shield Advanced nor Azure DDoS Protection is an application-layer defence on its own. Both are, at their core, L3/L4 products. The moment an attack is valid HTTP, well-formed requests against an expensive endpoint, credential stuffing under the rate limit, a slow-read attack, a cache-buster flood, the defending control is a separate WAF product that you provision, write rules for, and pay for independently.

On AWS the L7 defender is AWS WAF, billed by rule and by request volume; on Azure it is Azure WAF, bound to a Front Door or Application Gateway front end. Either way the DDoS subscription and the WAF are two purchases, two rule sets, and two things to keep switched on.

And "switched on" is the specific trap, again on both clouds. Either WAF can run a rule in an observe-only state, AWS names it Count, Azure names it Detection, where the rule records the hit and forwards the request anyway. This enforce-versus-observe gap is one of the most common findings in any assessment on either platform, and it stays invisible until real traffic separates a blocking rule from one that is only keeping a diary.

Two more failure modes sit on top of the WAF, and they are shared as well. Rate-limit thresholds picked as a round number at deployment tend to be wrong in one of two directions on both clouds: set too high they never fire against a spread-out flood, set too low they punish real users who happen to share an egress IP. And an origin still reachable at its own address, past either product, hands an attacker a route around every layer above it. That origin-exposure bypass does not care which product sits in front: a cloud-native stack falls to it the same way a proxied one does.

So the honest reading of both products is that they protect the layer that is largely automatic and leave you to defend, with a second product, the layer where most real attacks now live. That is not a criticism unique to either vendor. It is the shape of the category.

What actually decides the choice

Because the two are so close in shape, the decision rarely turns on the DDoS product at all.

Where your resources live. Each defends only its own cloud. A Shield Advanced subscription does nothing for an Azure endpoint, and a Network Protection plan does nothing for an Elastic IP. If your estate is single-cloud, the product is chosen for you. If it is split, you are running both, each on its own side, and the question is per-estate, not either-or.

How your protected footprint is shaped. Shield Advanced is one flat organization-wide subscription, which suits a large estate where the per-resource enrollment is the real work. Azure's split between a per-VNet plan and a per-address IP Protection tier gives a smaller footprint a lower entry point without committing to the full plan model. The pricing axes differ enough that a direct sticker comparison misleads; model your own footprint against each rather than comparing headline numbers.

What your team already operates. Telemetry lands in CloudWatch on one side and Azure Monitor on the other; the response loop routes through AWS Support tiers on one side and the Network Protection engagement path on the other. The product that fits the observability and on-call stack your team already runs is the one you will actually operate correctly under pressure, which counts for more than any feature-by-feature score.

None of those three is a statement about which product mitigates better. They mitigate comparably. The differences that decide the choice are structural and operational, not defensive.

FAQ

What is the difference between AWS Shield Advanced and Azure DDoS Protection?

They are the cloud-native managed DDoS products of two different clouds, and structurally they are near mirror images: a paid tier on a free always-on L3/L4 baseline, covering only the resources you enroll, with the application layer handed to a separate WAF product. AWS Shield Advanced enrolls resources under one organization subscription; Azure DDoS Protection uses a per-VNet Network Protection plan plus a per-address IP Protection tier. Each defends only its own cloud's resources, so the practical difference is which cloud you run on, not which mitigates more.

Does either product protect against application-layer (L7) attacks?

Not on its own. Both are fundamentally L3/L4 products. Layer 7 defence requires a separate WAF, AWS WAF or Azure WAF, that you provision, write rules for, and keep in an enforcing mode rather than an observe-only one (Count on AWS, Detection on Azure). An HTTP flood, credential stuffing, or a slow attack is stopped by the WAF and its rules, not by the DDoS subscription.

Is Azure DDoS Protection Standard the same as Network Protection?

Effectively yes. The older single name "DDoS Protection Standard" has been split into DDoS Network Protection (the per-VNet plan model) and DDoS IP Protection (a per-address tier). Network Protection is the tier that sits opposite AWS Shield Advanced in a comparison.

Do both include access to a human response team?

Yes, and both are gated. AWS gives you the Shield Response Team on Business or Enterprise Support, and only if proactive engagement or a pre-granted role is configured before the incident. Azure includes DDoS Rapid Response with Network Protection. Both operate on human latency and act on the resources they can reach, so the value depends entirely on the engagement path being set up and rehearsed before an attack, not on the team existing.

If both products are in place, is DDoS testing still necessary?

Yes, because the outages seen on both clouds are configuration failures rather than backbone failures: a resource nobody enrolled, a WAF rule left in Count or Detection, a rate limit never calibrated, an origin reachable directly, a response loop or a cost-protection claim nobody owns. The backbone absorbing volumetric traffic is the part you did not have to get right; everything above it is, and only a controlled test against your specific deployment confirms it holds.

Two products, one decision that isn't about them

Five years from now, both backbones will still absorb volumetric floods, both free tiers will still cover the platform automatically, and both paid tiers will still leave the application layer to a separate WAF. Those facts are stable, and they are the same facts on both clouds.

What varies, and so decides the outcome, is everything you assemble on top: which resources are actually enrolled, whether the WAF is enforcing or merely watching, whether the rate limits were ever driven to their thresholds, whether the origin can be reached around the edge, and whether the response loop and the credit claim have an owner. That list is identical on AWS and on Azure, because the two products are the same design expressed in two vocabularies.

Which is why the comparison quietly stops being a comparison. You do not pick Shield Advanced over Network Protection on the merits of their mitigation. You run whichever one sits under the resources you already have, and then you spend your real effort on the configuration above it, the part neither product ships correct and neither can test for you.