Frequently Asked Questions

Why are UDP and UDP-Lag not working?

If UDP and UDP-Lag are not working, it's possible that there is some form of denial of service prevention that is protecting the connection or server you are trying to test. To get around basic denial of service prevention, try reducing the packet size and randomizing the source IP address every packet (both are found in the advanced options).

If you have another stresser where UDP works on the same connection or server, understand that they are probably using DRDoS and claiming that it is UDP. DRDoS is technically a UDP flood since it uses the UDP protocol, but allows for amplification of the data that is sent out by utilizing public DNS servers. We have the two methods separated since they do not function exactly the same and it's possible to customize parameters of a standard UDP flood that you cannot with DRDoS (such as specifying packet size which can have a dramatic affect on the results of a test).

What is the bandwidth guarantee?

We guarantee* that your stress test will be sent with at least 99% of the speed you request. For example, a 1000 Mbps stress test will average at least 990 Mbps, guaranteed.

If you send a stress test that does not reach 99% of the speed you request, let us know about it and your next month's service charge is on us.

* Subject to applicable terms and conditions.

Why am I purchasing Mbps and not concurrents?

Other stressers advertise that they stress with 5 Gbps, 10 Gbps, ect. This leads to the common misconception that each of your stress tests are running at that strength when it is actually their total stressing power.

Your stress tests actually run at the advertised strength divided by the number of tests running. For example, if there are ten tests running on a stresser that lists 5 Gbps, your test is actually sending roughly 5000 / 10 = 500 Mbps.

Here at IP Stresser, we do not falsely advertise your stressing power. When you send a 1000 Mbps stress test, the test will average at least 990 Mbps, guaranteed*.

We allow you to send as many tests as you want, up to your maximum Mbps. This means you can send ten concurrent tests at 100 Mbps if your plan allows for 1000 Mbps.

How do Mbps transfer into number of connections for Layer 7 scripts?

Layer 7 scripts target the application layer in an attempt to utilize all available server resources on the target web server. This generally means utilizing the maximum number of connections that the web server has available for clients.

Since most layer 7 scripts run at less than 1 Mbps even with thousands of active connections, CPU usage becomes the limiting factor. We offer a 1 to 1 ratio of Mbps to number of connections for layer 7 stress tests. This means you can utilize 1000 connections for a layer 7 test the same way you would use 1000 Mbps for a layer 4 test.

Why do you not offer lifetime memberships?

It is impossible for a legitimate stresser to offer lifetime memberships and remain operational for any significant length of time. After the initial rush of lifetime membership purchases, operational costs would exceed revenue and force the stresser to shutdown.

Some stressers offer "lifetime" memberships that only last a year or two. We are not going to deceive our valued customers with such false advertising techniques.

How do I join the referral program?

The referral program is enabled for all of our users. Simply go to the referral page and distribute your personalized link.

When somebody uses your link and makes a purchase, you will receive a $1 USD credit on your account. This credit can be used towards future purchases only and unfortunately cannot be withdrawn.

What is the difference between bits and bytes?

Usually bits (lowercase b) are used to describe data transfer and bytes (uppercase B) for data storage. The only physical difference between the two is that every byte contains eight bits of data.

On our site you will run into three common units:

Mbps (megabits per second) - average data transfer rate
B (bytes) - packet size
kB (kilobytes) - packet size (1024 bytes = 1 kilobyte)