Known Issue (September 2016): Site slowness, red error bars, and other performance issues

We have been running into this the last two days. I'm glad that you're working on it. We will try again tomorrow.

I continue to have problems with the red bar appearing on my account.  I created a child account to do math on, figuring it would be clean and have little associated with it but the red bar is also appearing when I do math on the child account.

Red Bar issues for 13 months.  No end in sight I guess. I have submitted everything I can but yet no fix.

Trying to start my daughter on a new account. The simple "drag to count" exercises in early math were are working. We could watch the video and the text of the exercise is visible but not the graphics.

Using Google Chrome on a desktop. Searched thinking that we may be missing a needed browser extension. But maybe this is part of the larger technical issues that you are working on. 

For a couple of weeks now, we are unable to access any of missions.  When we click on the START button, it just spins and spins, never getting us anywhere.

My student has been trying to log on with his credentials but after entering and clicking on the green bar it just goes white and never moves on. His is the only student in my class with this problem. Help!

Follow up: I took a more desperate step of deleting all the data for the browser and then just had to allow it to set up cookies again and then it worked like a charm. 

I have tried on 4 different occasions to login a class of 4th graders on Khan academy and we can only get about 12 logged in at a time. The rest of the class just sits and waits for the website to load. This is a big problem for me because the classes are about 30 strong. I like the website for learning how to "write" the code because then they can see how it really works.

This is affecting speed badges. I was doing compare size and answering each one within a second or two and got all the way to ludicrous streak but couldn't get sublight.

My son can't do the master challenges for the last 2 weeks. The screen keeps on loading forever and if you look in the javascript console (I am an IT guy) there is a server error. I contacted the support and they can't fix this. After changing 2 messages and getting more technical, they stopped answering and now they are ignoring my emails. Really good service huh?!?

He told me that many colleagues of his class are also experiencing the same issues.

yes the site locks up during practice and on the mini sections, also when I am taking the tests itself which shortens my score and I run out of time to complete any answers would be great

The red bar problem us getting worse.  Instead of having the bar appear after trying to submit answers it is now a race for the button and I am getting the red bar of refreshment on every single question.  Right now I am trying to answer Syntax questions under Grammar and have had to answer the same question four times in a row.  Even though each time the question registered as correct, when I had to refresh the page, I lost the green checkmark(s) and had to go back to answer previously correctly answered questions before moving on.

Calculus is at a standstill since even when I complete practice exercises my skill level does not get promoted to Practiced and I have not had a Mastery Challenge in well over a month.

It's extremely frustrating to have the page go blank every 2y-ln(e^x^2) minutes while I'm trying to read it. As far as I'm concerned, your site is broken; I can't use it until you fix it.

My classes are having issues submitting projects. Error message says that the server is busy and due to large volume are unable to submit at this time.

I am unable to go to the Khan academy site on my regular computer (windows 10 with very recent update.)..I keep keep getting a message about a web filter and have tried all day to try to fix this...to no avail.

In my chrome browser I get the following message.

"If you're seeing this message, it means we're having trouble loading external resources for Khan Academy.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked."

Tried to fix it but when connecting your content delivery network I receive the following errors:

- net::ERR_INSECURE_RESPONSE

- Uncaught ReferenceError: KAdefine is not defined

On the firefox browser there seems to be no problem.

Thanks for looking in to this,

Greetings,

@Rick @thebute, there was a site error for a few hours last night; are you still experiencing issues?

It doesn't stop me from being able to go back in but it does it the most when i answer a question or try to go to the next problem. The red bar will say this page has a malfunction. Thank you for trying to help though.

I can not enter the SAT prectice sections for days. This message appears ERR_TOO_MANY_REDIRECTS I don't know what to do.

All my students are experiencing a lot of issues with connectivity when it comes to Khan Academy. However, all other external websites load just fine. All students are using Google Chrome and they will receive an error that ERROR_CONNECTION_RESET and/or Can't Connect...

Any ideas?

Regarding the "ERROR_CONNECTION_RESET" issue on the SAT section, this is an issue we're working on but setting everyone's account settings to English should be a temporary workaround in the meantime.

About half of my scholars in each of my classes is experiencing  the top section of the page for challenges and projects just spins with the blue squares.  They seem to still be able to write java script but in some cases, work they did yesterday did not save.  In other cases, the green button to move forward is affected by this.  These scholars do not see the red lettered error messages above the box.  Please advise as this is the major activity for our 7th grade Coding classes this week.

I have been working though Pixar in a Box and I am starting to see a red error message telling me that the page is out of date and asking me to reload, I reload however it dosn't fix the situation. Because of that, I am unable to complete to lesson/work-through problems.

^^ the red error messages from today should be resolved (there was about an hour when they were appearing very frequently)

Hello,  I do my math in small groups. Between the hours of 1:00-2:20 (central time) I have been attempting to have the students get on and use Khan. We experience a lot of long loading times and the error red bar saying the site has timed out. I enjoy your site but can not currently rely on it consistently. Is there anything you can recommend to avoid this slow loading time?    Yesterday (11-11-16) I only had 6 students attempting to get on the site and they kept getting slow loading or the red bar.  Today I also am experiencing slow loading times  and I am the only one in the building using our internet and the Khan website. 

Thank you for any help. 

I can't do any work at all on Khan academy. While working on math, I keep getting the "network request timed out" error after a few problems. I refresh the browser page, but it doesn't solve the problem. This is on Firefox 39.0.3 for Mac 10.6.

Can't use Khan at all until this is fixed.

I noticed this was back in Sept. I'm havinh the red bar, entering pages I didn't select, crashing, half the page/screen turns black. Also really slow

Can you file a support ticket with these details? (And anything else that might be helpful in us getting to the bottom of the issue): https://khanacademy.zendesk.com/hc/en-us/requests/new

To my knowledge we don't have any trending performance issues at the moment, so this might be something new.

I continue to have the red bar appear while doing exercises.