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New netskope SpeedTest speedtest.goskope.com - download speed not correct?!

  • June 5, 2025
  • 7 replies
  • 1703 views

Dear Netskope-Team,

First of all: I love the new SpeedTest Feature! SpeedTest

But I think something is not working correctly yet, because the download speed is always below 1 Mbit/s.

Here my results:

POP: DUS1

Test ID: ypjx-9133686

Latency: 11.20 ms

Jitter: 2.75 ms

Down Speed: 0.25 mbps

Up Speed: 538.54 mbps

HTTP version: 1.1

 

Could you please help? Anybody in the community with the same problem?

 

Best regards

Best answer by steff94

We found the problem: The config of our Netskope Tenant itself blocked the speedtest download files because of “Unknown File Header.” 

So we needed to expand the exceptions for all the speedtest urls (ie. speedtest-dus1.goskope.com.har, speedtest-muc1.goskope.com etc.) for Websockets and the Unknown File Header Error ..

 

7 replies

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  • Netskope Employee
  • July 23, 2025

@steff94 Thank you for your feedback and apologies for the lack of response from Netskope!

To troubleshoot individual tests we implemented unique identifiers. Please hover the mouse over the steering confirmation and copy the code showing up.

I see you have raised a support ticket on this, please submit the code in the ticket. That would be helpful. Thank you in advance. 


  • Author
  • Explorer
  • July 24, 2025

Hi ​@rkessler,

thanks for your reply. I just atted the code of one of my last failed speedtests to the support ticket.

Best regards


  • Author
  • Explorer
  • Answer
  • July 29, 2025

We found the problem: The config of our Netskope Tenant itself blocked the speedtest download files because of “Unknown File Header.” 

So we needed to expand the exceptions for all the speedtest urls (ie. speedtest-dus1.goskope.com.har, speedtest-muc1.goskope.com etc.) for Websockets and the Unknown File Header Error ..

 


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  • Netskope Employee
  • July 29, 2025

Hi ​@steff94 thank you! Very interesting.

Might be another use case for RegEx-URL lists… ;-)

Glad it works now.

 

@mbouthors FYI


  • Author
  • Explorer
  • July 29, 2025

Yeah - and also it would be a good idea for netskope team to implement a default allow rule for its very own speedtest service in all (new) tenants :) 


shivam397
  • New Member
  • November 2, 2025

Is it possible to run these test without netskope steering to see the difference with netskope agent? It shows invalid token


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  • Netskope Employee
  • November 3, 2025

Is it possible to run these test without netskope steering to see the difference with netskope agent? It shows invalid token

Hi ​@shivam397 - Yes, it is. Get the token(s) from your customer Success Team (TAM/CSM) or Support (use existing tickets for requests). Such tokens are valid for 10 runs / 1 week.