Getting "Vercel Security Checkpoint" Page on every load

[thhmoc67]

Summary

**I am getting this screen only on my production website (not on staging or other domain deployments).

once I load the page and reload, then again this page shows for a few minutes.**

Additional information

No response

Example

https://thehelloworld.com

[caseyocampo]

You may have Attack Challenge Mode enabled. Try disabling.

For anyone else who has this issue even if this is disabled, I'm having that same issue. Anyone know if this is a bug? Or how to fix it?

[talglobus]

Did you figure out what this was?

[caseyocampo]

Hey Tal, I did have Attack Challenge Mode on and then disabled it. I think I had to purge my cache and wait for it to clear to get it to stop showing. It's been a long time though and I no longer and I'm not sure if that was the fix.

[Nuraumar17]

Param

[we09532]

I am having the same problem on someone else's website.

[lufog]

On my Linux machine, I always get:

Vercel Security Checkpoint
Failed to verify your device. Please refresh and try again.

[talglobus]

Did anyone else find a solution to this? Currently running into this issue on a live production application

[brandonvilla21]

I am getting that issue and browsers are not being verified. This is prod application

[nathanielmhld]

Yeah, huge issue for us. All text streaming is now broken.

[nathanielmhld]

Seems to be getting fixed

[ntotten]

Happening to us also, many customer sites are not loading.

[Lakshay122]

Hi Guys, is there anyone to sovle this ?

[bjones256]

getting this today.

[Girbi]

Same, i thought it was from me.
Edit: now it works, maybe there was a small downtime.

[bjones256]

I closed and reopened chrome and it worked

[yihuanlin]

I have Attack Challenge Mode disabled, enabled then disabled again. Did not help. I keep getting "Failed to verify your browser" and my IP is marked as DDoS attack.

[yihuanlin]

I have Attack Challenge Mode disabled, enabled then disabled again. Did not help. I keep getting "Failed to verify your browser" and my IP is marked as DDoS attack.

I am using additional CDN and I guess that's the issue. I ignored caching on ./well-known and am no longer getting the error.

[maxpc55]

for those who are experiencing this, try closing and reopening the page or browser, or try manually clearing the cookies... if it still doesn't work, disable all the extensions you have installed, this may help, if you have several extensions one or more of them may generate a conflict in this verification system... you can disable them one by one to find out which one may be causing this... I hope I helped

[t77bsh]

this happening to me even though I don't have Attack Challenger Mode enabled

[yihuanlin]

If your site is using cdn you might want to ignore caching on ./well-known

[t77bsh]

I'm just using vercel no other CDN

[ChristinWhite]

Running into this issue on Vivaldi and Floorp, I had to switch to Comet just to read some articles.

This is very annoying, and I'll have to think long and hard about ever depending on Vercel as part of my stack.

It's also rather Ironic given that Comet is specifically designed for agentic browsing and, of the three browsers I tried, by for the most likely to not actually have a human driving.

[adrienthebo]

Running into this issue on Vivaldi and Floorp

I just tested both of these and they work fine.

If anyone is experiencing these issue, please report your browser version and a list of installed addons and noteworthy customizations.